Washington, Maryland Area Codes

240 301
Map of Washington Local time Prefixes

Map of Washington

Local time – 1 timezone

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Atlantic timezone

Prefixes – 829 codes

Prefix
Type
Location
Carrier
Assigned
Landline
Bandwidth.com CLEC, LLC - MD
2010/10/04
(240) 200-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/10/06
(240) 200-1
Landline
Allegiance Telecom of Maryland, Inc.
2011/04/13
(240) 200-2
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 200-3
Landline
Paetec Communications, Inc. - CA
2010/11/09
(240) 200-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/01/23
(240) 200-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/02/03
(240) 200-6
Landline
Ymax Communications Corp. - MD
2010/10/15
(240) 200-7
Landline
Ymax Communications Corp. - MD
2010/10/15
(240) 200-8
Landline
Ymax Communications Corp. - MD
2010/10/15
(240) 200-9
Landline
Ymax Communications Corp. - MD
2010/10/15
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/07
(240) 204-0
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/09
(240) 204-1
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/15
(240) 204-2
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/15
(240) 204-3
Wireless
Cellco Partnership DBA Verizon Wireless
2014/01/07
(240) 204-4
Wireless
Cellco Partnership DBA Verizon Wireless
2013/08/02
(240) 204-5
Landline
Broadview Networks, Inc. - DC
2013/02/28
(240) 204-6
Landline
Level 3 Communications, LLC - AK
2013/01/16
(240) 204-7
Wireless
Cellco Partnership DBA Verizon Wireless
2014/01/07
(240) 204-8
Landline
Peerless Network of Maryland, LLC
2013/04/04
(240) 204-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Wireless
New Cingular Wireless PCS, LLC
2003/07/23
(240) 205-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/02/06
(240) 205-1
Wireless
New Cingular Wireless PCS, LLC
2003/07/23
(240) 205-2
Wireless
New Cingular Wireless PCS, LLC
2003/07/23
(240) 205-3
Wireless
New Cingular Wireless PCS, LLC
2003/07/23
(240) 205-4
Wireless
Cellco Partnership DBA Verizon Wireless
2005/11/03
(240) 205-5
Wireless
Cellco Partnership DBA Verizon Wireless
2005/11/03
(240) 205-6
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/06
(240) 205-7
Landline
Level 3 Communications, LLC - AK
2005/12/05
(240) 205-8
Landline
Level 3 Communications, LLC - AK
2005/12/05
(240) 205-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/03/06
Landline
Xo Maryland, LLC
-
(240) 206-0
Landline
Xo Maryland, LLC
-
(240) 206-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/03/19
(240) 206-2
Landline
Xo Maryland, LLC
-
(240) 206-3
Landline
Xo Maryland, LLC
2005/07/20
(240) 206-4
Landline
Xo Maryland, LLC
2005/07/20
(240) 206-5
Landline
Bandwidth.com CLEC, LLC - MD
2007/08/17
(240) 206-6
Landline
Level 3 Communications, LLC - AK
2008/02/05
(240) 206-7
Landline
Mcimetro Access Transmission Services LLC
2008/09/12
(240) 206-8
Landline
Comcast IP Phone, LLC
2007/10/04
(240) 206-9
Landline
Comcast IP Phone, LLC
2006/03/02
Landline
Verizon Maryland, Inc.
-
(240) 221-0
Landline
Verizon Maryland, Inc.
-
(240) 221-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(240) 221-2
Landline
Verizon Maryland, Inc.
-
(240) 221-3
Landline
Comcast IP Phone, LLC
2005/06/30
(240) 221-4
Landline
Verizon Maryland, Inc.
-
(240) 221-5
Landline
Onvoy, LLC - MD
2016/09/02
(240) 221-6
Landline
Onvoy, LLC - MD
2016/09/02
(240) 221-7
Landline
Peerless Network of Maryland, LLC
2019/11/29
(240) 221-8
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(240) 221-9
Landline
Core Communications, Inc.- MD
2018/10/12
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-0
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-1
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-2
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-3
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-4
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-5
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-6
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-7
Wireless
Sprint Spectrum, L.P.
2003/07/22
(240) 223-8
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 223-9
Landline
Allegiance Telecom of Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(240) 228-0
Landline
Verizon Maryland, Inc.
-
(240) 228-1
Landline
Verizon Maryland, Inc.
2002/05/30
(240) 228-2
Landline
Verizon Maryland, Inc.
2003/01/10
(240) 228-3
Landline
Verizon Maryland, Inc.
-
(240) 228-4
Landline
Verizon Maryland, Inc.
-
(240) 228-5
Landline
Verizon Maryland, Inc.
-
(240) 228-6
Landline
Verizon Maryland, Inc.
-
(240) 228-7
Landline
Verizon Maryland, Inc.
-
(240) 228-8
Landline
Verizon Maryland, Inc.
-
(240) 228-9
Landline
Verizon Maryland, Inc.
2003/01/10
Landline
Level 3 Communications, LLC - AK
-
(240) 232-0
Landline
Level 3 Communications, LLC - AK
-
(240) 232-1
Landline
Telnyx LLC
2021/06/29
(240) 232-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/15
(240) 232-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(240) 232-6
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/28
(240) 232-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(240) 232-8
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/07
Wireless
Cellco Partnership DBA Verizon Wireless
2011/10/04
(240) 234-0
Wireless
Cellco Partnership DBA Verizon Wireless
2013/06/20
(240) 234-1
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-2
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-3
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-4
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-5
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-6
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-7
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-8
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 234-9
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 235
Landline
Paetec Communications, Inc. - CA
-
(240) 238
Landline
Paetec Communications, Inc. - CA
-
Landline
Starpower Communications, LLC - DC
-
(240) 241-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/04/01
(240) 241-1
Landline
Peerless Network of Maryland, LLC
2013/04/04
(240) 241-2
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 241-3
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 241-4
Landline
Comcast IP Phone, LLC
2014/06/13
(240) 241-5
Landline
Xo Maryland, LLC
2007/06/12
(240) 241-6
Landline
Xo Maryland, LLC
2007/06/12
(240) 241-7
Landline
Level 3 Communications, LLC - AK
2007/11/21
(240) 241-8
Landline
Starpower Communications, LLC - DC
-
(240) 241-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Landline
Starpower Communications, LLC - DC
-
(240) 242-0
Landline
Starpower Communications, LLC - DC
-
(240) 242-1
Landline
Starpower Communications, LLC - DC
-
(240) 242-2
Landline
Starpower Communications, LLC - DC
-
(240) 242-3
Landline
Comcast IP Phone, LLC
2006/06/07
(240) 242-4
Landline
Comcast IP Phone, LLC
2006/06/07
(240) 242-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(240) 242-6
Landline
Ctc Communications Corp. - MD
2006/08/09
(240) 242-7
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(240) 242-8
Landline
Starpower Communications, LLC - DC
-
(240) 242-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
Landline
Starpower Communications, LLC - DC
-
(240) 244-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/08/04
(240) 244-1
Landline
Comcast IP Phone, LLC
2006/02/06
(240) 244-2
Landline
Comcast IP Phone, LLC
2016/05/18
(240) 244-3
Landline
Bandwidth.com CLEC, LLC - MD
2007/08/17
(240) 244-4
Landline
Onvoy, LLC - MD
2008/05/21
(240) 244-5
Landline
Comcast IP Phone, LLC
2007/01/09
(240) 244-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(240) 244-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 244-8
Landline
Starpower Communications, LLC - DC
-
(240) 244-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
Landline
Starpower Communications, LLC - DC
-
(240) 245-0
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(240) 245-1
Landline
Ctc Communications Corp. - MD
2005/12/19
(240) 245-2
Landline
Onvoy, LLC - MD
2012/09/12
(240) 245-3
Landline
Comcast IP Phone, LLC
2007/04/20
(240) 245-4
Landline
Comcast IP Phone, LLC
2006/09/25
(240) 245-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 245-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 245-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(240) 245-8
Landline
Starpower Communications, LLC - DC
-
(240) 245-9
Landline
Local Access LLC - MD
2013/08/12
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-0
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-1
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-2
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-3
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-4
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-5
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-6
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-7
Wireless
New Cingular Wireless PCS, LLC
2003/10/15
(240) 247-8
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 247-9
Landline
Allegiance Telecom of Maryland, Inc.
-
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 253-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 253-1
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 253-2
Landline
Comcast IP Phone, LLC
2006/02/06
(240) 253-3
Wireless
Omnipoint Communications Cap Operations, LLC
2006/11/17
(240) 253-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 253-5
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 253-6
Landline
Bandwidth.com CLEC, LLC - MD
2013/03/25
(240) 253-7
Wireless
Omnipoint Communications Cap Operations, LLC
2007/08/14
(240) 253-8
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 253-9
Landline
Global Crossing Local Services, Inc. - KY
-
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 260-0
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 260-1
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 260-2
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 260-3
Landline
Comcast IP Phone, LLC
2017/10/10
(240) 260-4
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 260-5
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 260-6
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 260-7
Wireless
T-mobile USA, Inc.
2017/09/07
(240) 260-8
Wireless
Omnipoint Communications Cap Operations, LLC
2018/09/24
(240) 260-9
Landline
Allegiance Telecom of Maryland, Inc.
-
Wireless
Sprint Spectrum, L.P.
2011/11/10
(240) 263-0
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-1
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-2
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-3
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-4
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-5
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-6
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-7
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-8
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 263-9
Wireless
Sprint Spectrum, L.P.
2011/11/14
Wireless
Sprint Spectrum, L.P.
2011/11/10
(240) 265-0
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-1
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-2
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-3
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-4
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-5
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-6
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-7
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-8
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 265-9
Wireless
Sprint Spectrum, L.P.
2011/11/14
Landline
Peerless Network of Maryland, LLC
-
(240) 266-0
Landline
Peerless Network of Maryland, LLC
-
(240) 266-2
Unknown
Ton80 Communications, LLC
2021/05/13
(240) 266-3
Landline
Peerless Network of Maryland, LLC
2020/03/23
(240) 266-6
Landline
Terra Nova Telecom Inc.
2020/12/28
(240) 266-7
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 266-9
Landline
Onvoy, LLC - MD
2020/03/31
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-0
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-1
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-2
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-3
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-4
Wireless
Cellco Partnership DBA Verizon Wireless
2017/08/22
(240) 268-5
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-6
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-7
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-8
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 268-9
Landline
Allegiance Telecom of Maryland, Inc.
-
Landline
Peerless Network of Maryland, LLC
-
(240) 269-9
Landline
Peerless Network of Maryland, LLC
-
(240) 271
Wireless
New Cingular Wireless PCS, LLC
-
Wireless
Sprint Spectrum, L.P.
2011/11/10
(240) 272-0
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-1
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-2
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-3
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-4
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-5
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-6
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-7
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-8
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 272-9
Wireless
Sprint Spectrum, L.P.
2011/11/14
Landline
Level 3 Communications, LLC - AK
-
(240) 273-0
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 273-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/09/26
(240) 273-2
Wireless
Omnipoint Communications Cap Operations, LLC
2003/03/10
(240) 273-3
Landline
Level 3 Communications, LLC - AK
-
(240) 273-4
Landline
Bandwidth.com CLEC, LLC - MD
2013/03/25
(240) 273-5
Wireless
Omnipoint Communications Cap Operations, LLC
2005/08/17
(240) 273-6
Wireless
Omnipoint Communications Cap Operations, LLC
2006/06/05
(240) 273-7
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(240) 273-8
Wireless
Omnipoint Communications Cap Operations, LLC
2003/04/15
(240) 274
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
2004/05/04
(240) 276-0
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-1
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-2
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-3
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-4
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-5
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-6
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-7
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-8
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 276-9
Landline
Verizon Maryland, Inc.
2004/05/05
(240) 277
Wireless
Sprint Spectrum, L.P.
2002/10/18
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-0
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-1
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-2
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-3
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-4
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-5
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-6
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-7
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-8
Wireless
New Cingular Wireless PCS, LLC
-
(240) 281-9
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Paetec Communications, Inc. - CA
-
(240) 283-0
Landline
Paetec Communications, Inc. - CA
-
(240) 283-1
Landline
Paetec Communications, Inc. - CA
-
(240) 283-2
Landline
Paetec Communications, Inc. - CA
-
(240) 283-3
Landline
Paetec Communications, Inc. - CA
-
(240) 283-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(240) 283-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(240) 283-6
Landline
Paetec Communications, Inc. - CA
-
(240) 283-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 283-8
Landline
Paetec Communications, Inc. - CA
-
(240) 283-9
Landline
Paetec Communications, Inc. - CA
-
Wireless
Sprint Spectrum, L.P.
2002/09/17
(240) 286-0
Wireless
Sprint Spectrum, L.P.
2011/04/22
(240) 286-1
Wireless
Sprint Spectrum, L.P.
2002/11/25
(240) 286-2
Wireless
Sprint Spectrum, L.P.
2002/11/25
(240) 286-3
Wireless
Sprint Spectrum, L.P.
2003/03/17
(240) 286-4
Wireless
Sprint Spectrum, L.P.
2003/03/17
(240) 286-5
Wireless
Sprint Spectrum, L.P.
2003/07/22
(240) 286-6
Wireless
Sprint Spectrum, L.P.
2003/02/04
(240) 286-7
Wireless
Sprint Spectrum, L.P.
2003/02/04
(240) 286-8
Wireless
Sprint Spectrum, L.P.
2003/02/04
(240) 286-9
Wireless
Sprint Spectrum, L.P.
2003/07/22
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 289-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 289-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 289-2
Landline
Level 3 Communications, LLC - AK
2008/02/01
(240) 289-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/01/08
(240) 289-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 289-5
Landline
Onvoy, LLC - MD
2020/05/12
(240) 289-6
Landline
Onvoy, LLC - MD
2020/05/12
(240) 289-7
Landline
Onvoy, LLC - MD
2020/05/12
(240) 289-8
Landline
Onvoy, LLC - MD
2020/05/12
(240) 289-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-0
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-1
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-2
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-3
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-4
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-5
Landline
Onvoy, LLC - MD
2020/06/04
(240) 290-6
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-7
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-8
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 290-9
Landline
Allegiance Telecom of Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(240) 292-0
Landline
Level 3 Communications, LLC - AK
2005/02/05
(240) 292-1
Landline
Level 3 Communications, LLC - AK
2005/02/05
(240) 292-2
Landline
Verizon Maryland, Inc.
-
(240) 292-3
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 292-4
Landline
Level 3 Communications, LLC - AK
2002/12/23
(240) 292-5
Landline
Level 3 Telecom of Maryland, LLC - MD
2009/04/15
(240) 292-6
Landline
Level 3 Communications, LLC - AK
2006/03/29
(240) 292-7
Landline
Xo Maryland, LLC
2007/06/29
(240) 292-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 292-9
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
Landline
Starpower Communications, LLC - DC
-
(240) 293-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 293-1
Landline
Allegiance Telecom of Maryland, Inc.
2002/06/19
(240) 293-2
Landline
Level 3 Communications, LLC - AK
2004/12/20
(240) 293-3
Landline
Level 3 Communications, LLC - AK
2004/12/20
(240) 293-4
Landline
Level 3 Communications, LLC - AK
2003/01/23
(240) 293-5
Landline
Level 3 Communications, LLC - AK
2006/03/13
(240) 293-6
Landline
Comcast IP Phone, LLC
2005/06/30
(240) 293-8
Landline
Starpower Communications, LLC - DC
-
(240) 293-9
Landline
Level 3 Communications, LLC - AK
2006/06/16
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-2
Landline
Bandwidth.com CLEC, LLC - MD
2004/10/20
(240) 296-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-7
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-8
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 296-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Level 3 Communications, LLC - AK
-
(240) 297-0
Landline
Level 3 Communications, LLC - AK
2004/12/20
(240) 297-1
Landline
Level 3 Communications, LLC - AK
2004/12/20
(240) 297-2
Landline
Level 3 Communications, LLC - AK
2013/02/21
(240) 297-3
Landline
Level 3 Communications, LLC - AK
2004/12/27
(240) 297-4
Landline
Level 3 Communications, LLC - AK
-
(240) 297-5
Landline
Level 3 Communications, LLC - AK
2004/12/27
(240) 297-6
Landline
Level 3 Communications, LLC - AK
2010/05/28
(240) 297-7
Landline
Level 3 Communications, LLC - AK
2012/02/29
(240) 297-8
Landline
Level 3 Communications, LLC - AK
2014/09/29
(240) 297-9
Landline
Comcast IP Phone, LLC
2006/03/02
Prefix
Type
Location
Carrier
Assigned
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 303-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 303-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 303-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/28
(240) 303-3
Landline
Onvoy, LLC - MD
2012/09/12
(240) 303-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 303-5
Landline
Onvoy, LLC - MD
2020/05/12
(240) 303-6
Landline
Onvoy, LLC - MD
2020/05/12
(240) 303-7
Landline
Onvoy, LLC - MD
2020/05/12
(240) 303-8
Landline
Onvoy, LLC - MD
2020/05/12
(240) 303-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Wireless
Sprint Spectrum, L.P.
2002/07/03
(240) 304-0
Wireless
Sprint Spectrum, L.P.
2003/04/21
(240) 304-1
Wireless
Sprint Spectrum, L.P.
2003/04/21
(240) 304-2
Wireless
Sprint Spectrum, L.P.
2003/04/21
(240) 304-3
Landline
Peerless Network of Maryland, LLC
2012/08/22
(240) 304-4
Wireless
Sprint Spectrum, L.P.
2004/04/16
(240) 304-5
Wireless
Sprint Spectrum, L.P.
2004/04/16
(240) 304-6
Wireless
Sprint Spectrum, L.P.
2003/02/05
(240) 304-7
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 304-8
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 304-9
Wireless
Sprint Spectrum, L.P.
2004/01/26
(240) 305
Wireless
Sprint Spectrum, L.P.
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 312-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 312-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 312-2
Landline
Level 3 Communications, LLC - AK
2005/11/14
(240) 312-3
Landline
Level 3 Communications, LLC - AK
2005/11/14
(240) 312-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 312-5
Landline
Peerless Network of Maryland, LLC
2020/05/26
(240) 312-6
Landline
Peerless Network of Maryland, LLC
2020/07/28
(240) 312-7
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 312-8
Wireless
Omnipoint Communications Cap Operations, LLC
2021/04/15
(240) 312-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Verizon Maryland, Inc.
-
(240) 314-0
Landline
Verizon Maryland, Inc.
-
(240) 314-1
Landline
Verizon Maryland, Inc.
-
(240) 314-2
Landline
Verizon Maryland, Inc.
-
(240) 314-3
Landline
Verizon Maryland, Inc.
-
(240) 314-4
Landline
Verizon Maryland, Inc.
-
(240) 314-5
Landline
Verizon Maryland, Inc.
-
(240) 314-6
Landline
Verizon Maryland, Inc.
-
(240) 314-7
Landline
Verizon Maryland, Inc.
-
(240) 314-8
Landline
Verizon Maryland, Inc.
-
(240) 314-9
Wireless
Omnipoint Communications Cap Operations, LLC
2007/06/20
Wireless
Sprint Spectrum, L.P.
-
(240) 316-0
Wireless
Sprint Spectrum, L.P.
2009/10/15
(240) 316-1
Wireless
Sprint Spectrum, L.P.
2009/10/15
(240) 316-2
Wireless
Sprint Spectrum, L.P.
2009/10/15
(240) 316-3
Landline
Xo Maryland, LLC
2009/07/01
(240) 316-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 316-5
Wireless
Sprint Spectrum, L.P.
2009/10/15
(240) 316-6
Wireless
Sprint Spectrum, L.P.
2008/11/19
(240) 316-7
Wireless
Sprint Spectrum, L.P.
2008/11/19
(240) 316-8
Wireless
Sprint Spectrum, L.P.
2008/11/19
(240) 316-9
Wireless
Sprint Spectrum, L.P.
2008/11/25
Landline
Verizon Maryland, Inc.
-
(240) 318-0
Landline
Verizon Maryland, Inc.
-
(240) 318-1
Landline
Peerless Network of Maryland, LLC
2013/04/10
(240) 318-2
Landline
Comcast IP Phone, LLC
2008/02/11
(240) 318-3
Landline
Comcast IP Phone, LLC
2009/10/29
(240) 318-4
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 318-5
Landline
Comcast IP Phone, LLC
2013/08/15
(240) 318-6
Wireless
T-mobile USA, Inc.
2015/01/12
(240) 318-7
Landline
Onvoy, LLC - MD
2016/02/12
(240) 318-8
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(240) 318-9
Landline
Peerless Network of Maryland, LLC
2013/04/10
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 326-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 326-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 326-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(240) 326-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 326-5
Landline
Onvoy, LLC - MD
2021/06/16
(240) 326-8
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 326-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Verizon Maryland, Inc.
-
(240) 328-0
Wireless
New Cingular Wireless PCS, LLC
2003/12/19
(240) 328-1
Landline
Verizon Maryland, Inc.
-
(240) 328-2
Wireless
New Cingular Wireless PCS, LLC
2004/07/21
(240) 328-3
Wireless
New Cingular Wireless PCS, LLC
2005/06/07
(240) 328-4
Wireless
Cellco Partnership DBA Verizon Wireless
2005/09/07
(240) 328-5
Wireless
Cellco Partnership DBA Verizon Wireless
2005/09/07
(240) 328-6
Landline
Comcast IP Phone, LLC
2005/06/30
(240) 328-7
Wireless
New Cingular Wireless PCS, LLC
2006/02/22
(240) 328-8
Wireless
New Cingular Wireless PCS, LLC
2005/07/24
(240) 328-9
Wireless
Cellco Partnership DBA Verizon Wireless
2005/09/07
Wireless
Sprint Spectrum, L.P.
2007/12/14
(240) 330-0
Wireless
Omnipoint Communications Cap Operations, LLC
2008/07/21
(240) 330-1
Landline
Us Lec of Maryland, Inc.
2008/04/24
(240) 330-2
Wireless
Omnipoint Communications Cap Operations, LLC
2008/07/21
(240) 330-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/09/12
(240) 330-4
Landline
Cbeyond Comm, LLC MD
2008/05/21
(240) 330-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/09/12
(240) 330-6
Landline
Ymax Communications Corp. - MD
2008/09/24
(240) 330-7
Wireless
Sprint Spectrum, L.P.
2007/12/18
(240) 330-8
Wireless
Sprint Spectrum, L.P.
2007/12/18
(240) 330-9
Wireless
Sprint Spectrum, L.P.
2007/12/18
Landline
Peerless Network of Maryland, LLC
-
(240) 331-0
Landline
Peerless Network of Maryland, LLC
-
(240) 331-1
Landline
Terra Nova Telecom Inc.
2021/06/17
(240) 331-3
Landline
Peerless Network of Maryland, LLC
2020/03/17
(240) 331-5
Landline
Bandwidth.com CLEC, LLC - MD
2020/05/14
(240) 331-6
Landline
Bandwidth.com CLEC, LLC - MD
2020/05/14
(240) 331-7
Landline
Peerless Network of Maryland, LLC
2020/07/28
(240) 331-8
Landline
Bandwidth.com CLEC, LLC - MD
2020/05/14
(240) 333
Landline
Cavalier East, LLC - MD
2001/05/09
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 334-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 334-1
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 334-2
Landline
Comcast IP Phone, LLC
2013/10/15
(240) 334-3
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 334-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 334-5
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 334-6
Landline
Level 3 Communications, LLC - AK
-
(240) 334-7
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/07
(240) 334-8
Wireless
Omnipoint Communications Cap Operations, LLC
2013/08/21
(240) 334-9
Landline
Global Crossing Local Services, Inc. - KY
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 335-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 335-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 335-2
Landline
Onvoy, LLC - MD
2014/10/09
(240) 335-3
Landline
Onvoy, LLC - MD
2014/10/09
(240) 335-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 335-5
Landline
Vonage America LLC
2020/05/08
(240) 335-6
Landline
Vonage America LLC
2020/05/08
(240) 335-7
Landline
Onvoy, LLC - MD
2020/05/12
(240) 335-8
Landline
Onvoy, LLC - MD
2020/05/12
(240) 335-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 336
Landline
Core Communications, Inc.- MD
-
Landline
Onvoy, LLC - MD
-
(240) 337-0
Landline
Onvoy, LLC - MD
-
(240) 337-1
Landline
Core Communications, Inc.- MD
2018/06/07
(240) 337-2
Wireless
Cellco Partnership DBA Verizon Wireless
2019/01/10
(240) 337-3
Wireless
Cellco Partnership DBA Verizon Wireless
2019/10/01
(240) 337-4
Landline
Core Communications, Inc.- MD
2018/06/07
(240) 337-5
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 337-6
Landline
Core Communications, Inc.- MD
2019/03/15
(240) 337-7
Landline
Core Communications, Inc.- MD
2019/03/15
(240) 337-8
Landline
Core Communications, Inc.- MD
2019/03/15
(240) 337-9
Landline
Core Communications, Inc.- MD
2018/06/07
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 338-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 338-1
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 338-2
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 338-3
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 338-4
Wireless
New Cingular Wireless PCS, LLC
2003/01/09
(240) 338-5
Wireless
New Cingular Wireless PCS, LLC
2003/01/09
(240) 338-6
Wireless
New Cingular Wireless PCS, LLC
2003/01/09
(240) 338-7
Wireless
New Cingular Wireless PCS, LLC
2003/01/09
(240) 338-8
Wireless
New Cingular Wireless PCS, LLC
2003/01/09
(240) 338-9
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Cavalier East, LLC - MD
-
(240) 339-0
Landline
Cavalier East, LLC - MD
-
(240) 339-1
Landline
Comcast IP Phone, LLC
2006/03/02
(240) 339-2
Landline
Onvoy, LLC - MD
2008/05/21
(240) 339-3
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(240) 339-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(240) 339-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(240) 339-6
Landline
Onvoy, LLC - MD
2012/09/12
(240) 339-7
Landline
Centurylink Communications, LLC LA
2014/05/14
(240) 339-8
Landline
Onvoy, LLC - MD
2015/07/08
(240) 339-9
Landline
Cavalier East, LLC - MD
-
Wireless
Sprint Spectrum, L.P.
2011/08/18
(240) 340-0
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-1
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-2
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-3
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-4
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-5
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-6
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-7
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-8
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 340-9
Wireless
Sprint Spectrum, L.P.
2011/08/22
Landline
Level 3 Communications, LLC - AK
-
(240) 348-0
Landline
Local Access LLC - MD
2015/02/19
(240) 348-1
Landline
Level 3 Communications, LLC - AK
-
(240) 348-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 348-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 348-4
Landline
Comcast IP Phone, LLC
2010/08/30
(240) 348-5
Landline
Level 3 Communications, LLC - AK
2011/12/21
(240) 348-6
Landline
Level 3 Communications, LLC - AK
2011/09/15
(240) 348-7
Landline
Comcast IP Phone, LLC
2013/06/25
(240) 348-8
Landline
Onvoy, LLC - MD
2016/02/12
(240) 348-9
Landline
Onvoy, LLC - MD
2016/03/29
(240) 350
Wireless
Sprint Spectrum, L.P.
-
(240) 351
Wireless
Sprint Spectrum, L.P.
-
(240) 353
Wireless
Sprint Spectrum, L.P.
-
(240) 354
Wireless
Sprint Spectrum, L.P.
-
(240) 355
Wireless
Sprint Spectrum, L.P.
-
(240) 363
Landline
Onvoy, LLC - MD
-
Wireless
Sprint Spectrum, L.P.
2007/12/14
(240) 370-0
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-1
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-2
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-3
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-4
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-5
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-6
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-7
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-8
Wireless
Sprint Spectrum, L.P.
2007/12/17
(240) 370-9
Wireless
Sprint Spectrum, L.P.
2007/12/17
Landline
Peerless Network of Maryland, LLC
-
(240) 371-0
Landline
Peerless Network of Maryland, LLC
-
(240) 371-1
Landline
Peerless Network of Maryland, LLC
-
(240) 371-9
Landline
Peerless Network of Maryland, LLC
-
(240) 373
Landline
Verizon Maryland, Inc.
-
(240) 375
Wireless
Sprint Spectrum, L.P.
-
Wireless
Cellco Partnership DBA Verizon Wireless
2007/09/17
(240) 380-0
Wireless
Cellco Partnership DBA Verizon Wireless
2007/09/18
(240) 380-1
Landline
Us Lec of Maryland, Inc.
2007/12/14
(240) 380-2
Landline
Level 3 Communications, LLC - AK
2008/01/15
(240) 380-3
Landline
Level 3 Communications, LLC - AK
2008/01/15
(240) 380-4
Wireless
Sprint Spectrum, L.P.
2007/12/10
(240) 380-5
Wireless
Sprint Spectrum, L.P.
2007/12/10
(240) 380-6
Wireless
Sprint Spectrum, L.P.
2007/12/10
(240) 380-7
Wireless
Sprint Spectrum, L.P.
2007/12/10
(240) 380-8
Wireless
Sprint Spectrum, L.P.
2007/12/10
(240) 380-9
Wireless
Sprint Spectrum, L.P.
2007/12/10
(240) 381
Wireless
New Cingular Wireless PCS, LLC
-
Wireless
New Cingular Wireless PCS, LLC
-
(240) 383-0
Wireless
New Cingular Wireless PCS, LLC
-
(240) 383-1
Landline
Xo Maryland, LLC
2007/06/12
(240) 383-2
Wireless
New Cingular Wireless PCS, LLC
-
(240) 383-3
Landline
Xo Maryland, LLC
2007/06/12
(240) 383-4
Landline
Ymax Communications Corp. - MD
2008/09/24
(240) 383-5
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/04
(240) 383-6
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 383-7
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 383-8
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 383-9
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
Landline
Verizon Maryland, Inc.
-
(240) 386-0
Wireless
Omnipoint Communications Cap Operations, LLC
2020/12/04
(240) 386-1
Landline
Paetec Communications, Inc. - CA
2015/02/18
(240) 386-2
Landline
Verizon Maryland, Inc.
-
(240) 386-3
Landline
Verizon Maryland, Inc.
-
(240) 386-4
Landline
Verizon Maryland, Inc.
-
(240) 386-5
Landline
Verizon Maryland, Inc.
-
(240) 386-6
Landline
Verizon Maryland, Inc.
-
(240) 386-7
Wireless
Omnipoint Communications Cap Operations, LLC
2006/04/04
(240) 386-8
Landline
Comcast IP Phone, LLC
2009/05/15
(240) 386-9
Wireless
Omnipoint Communications Cap Operations, LLC
2007/08/14
Landline
Cavalier East, LLC - MD
-
(240) 387-0
Landline
Cavalier East, LLC - MD
-
(240) 387-1
Landline
Cavalier East, LLC - MD
-
(240) 387-2
Landline
Cavalier East, LLC - MD
-
(240) 387-3
Landline
Cavalier East, LLC - MD
-
(240) 387-4
Landline
Cavalier East, LLC - MD
-
(240) 387-5
Landline
Cavalier East, LLC - MD
-
(240) 387-6
Landline
Xo Maryland, LLC
2007/01/25
(240) 387-7
Landline
Xo Maryland, LLC
2007/01/25
(240) 387-8
Landline
Cavalier East, LLC - MD
-
(240) 387-9
Landline
Cavalier East, LLC - MD
-
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 391-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 391-1
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 391-2
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 391-3
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/14
(240) 391-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 391-6
Landline
Comcast IP Phone, LLC
2007/10/19
(240) 391-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 391-8
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(240) 391-9
Landline
Global Crossing Local Services, Inc. - KY
-
Landline
Starpower Communications, LLC - DC
-
(240) 392-0
Wireless
Omnipoint Communications Cap Operations, LLC
2011/05/12
(240) 392-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/04/30
(240) 392-2
Landline
Comcast IP Phone, LLC
2006/02/06
(240) 392-3
Landline
Level 3 Communications, LLC - AK
2005/12/05
(240) 392-4
Landline
Level 3 Communications, LLC - AK
2005/12/05
(240) 392-5
Wireless
Omnipoint Communications Cap Operations, LLC
2011/07/12
(240) 392-6
Landline
Onvoy, LLC - MD
2012/09/12
(240) 392-7
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 392-8
Landline
Starpower Communications, LLC - DC
-
(240) 392-9
Wireless
T-mobile USA, Inc.
2013/05/23
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 393-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 393-1
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 393-2
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 393-3
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 393-4
Landline
Level 3 Communications, LLC - AK
2002/12/23
(240) 393-5
Wireless
New Cingular Wireless PCS, LLC
2003/10/15
(240) 393-6
Wireless
New Cingular Wireless PCS, LLC
2003/09/17
(240) 393-7
Wireless
New Cingular Wireless PCS, LLC
2003/09/17
(240) 393-8
Wireless
New Cingular Wireless PCS, LLC
2003/03/24
(240) 393-9
Wireless
New Cingular Wireless PCS, LLC
2003/03/24
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 395-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 395-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 395-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 395-3
Wireless
Sprint Spectrum, L.P.
2005/04/14
(240) 395-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 395-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 395-8
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 395-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 396-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 396-1
Landline
Level 3 Communications, LLC - AK
-
(240) 396-2
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 396-3
Wireless
Sprint Spectrum, L.P.
2005/08/11
(240) 396-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 396-5
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 396-6
Landline
Comcast IP Phone, LLC
2005/06/30
(240) 396-7
Wireless
Omnipoint Communications Cap Operations, LLC
2006/01/06
(240) 396-8
Wireless
Sprint Spectrum, L.P.
2005/11/17
(240) 396-9
Landline
Global Crossing Local Services, Inc. - KY
-
Wireless
Sprint Spectrum, L.P.
2002/07/03
(240) 398-0
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 398-1
Wireless
Sprint Spectrum, L.P.
2003/09/17
(240) 398-2
Wireless
Sprint Spectrum, L.P.
2003/09/17
(240) 398-3
Landline
Level 3 Communications, LLC - AK
2005/03/08
(240) 398-4
Wireless
Sprint Spectrum, L.P.
2003/09/17
(240) 398-5
Landline
Us Lec of Maryland, Inc.
2004/10/20
(240) 398-6
Wireless
Sprint Spectrum, L.P.
-
(240) 398-7
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 398-8
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 398-9
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 399
Landline
Xo Maryland, LLC
-
Prefix
Type
Location
Carrier
Assigned
Wireless
Sprint Spectrum, L.P.
2011/08/18
(240) 400-0
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/02
(240) 400-1
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 400-2
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 400-3
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 400-4
Wireless
Sprint Spectrum, L.P.
2011/10/25
(240) 400-5
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 400-6
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 400-7
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 400-8
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 400-9
Wireless
Sprint Spectrum, L.P.
2011/08/22
(240) 401
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Mcimetro Access Transmission Services LLC
2010/09/21
(240) 402-0
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-1
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-2
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-3
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-4
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-5
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-6
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-7
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-8
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
(240) 402-9
Landline
Mcimetro Access Transmission Services LLC
2010/09/23
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-7
Landline
Comcast IP Phone, LLC
2008/02/22
(240) 403-8
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 403-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Wireless
New Cingular Wireless PCS, LLC
2009/09/17
(240) 406-0
Wireless
New Cingular Wireless PCS, LLC
2009/09/17
(240) 406-1
Landline
Broadview Networks of Virginia, Inc. - VA
2010/07/14
(240) 406-2
Wireless
Omnipoint Communications Cap Operations, LLC
2010/08/06
(240) 406-3
Wireless
Omnipoint Communications Cap Operations, LLC
2010/08/06
(240) 406-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(240) 406-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 406-6
Wireless
Omnipoint Communications Cap Operations, LLC
2010/01/12
(240) 406-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(240) 406-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/29
(240) 406-9
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/29
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 407-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 407-1
Landline
Onvoy, LLC - MD
2016/03/29
(240) 407-2
Landline
Level 3 Communications, LLC - AK
-
(240) 407-3
Landline
Onvoy, LLC - MD
2021/03/03
(240) 407-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 407-5
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 407-6
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 407-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/03/25
(240) 407-8
Landline
Onvoy, LLC - MD
2021/03/03
(240) 407-9
Landline
Global Crossing Local Services, Inc. - KY
-
Wireless
New Cingular Wireless PCS, LLC
2009/10/14
(240) 408-0
Wireless
New Cingular Wireless PCS, LLC
2009/10/16
(240) 408-1
Wireless
Omnipoint Communications Cap Operations, LLC
2010/11/05
(240) 408-2
Wireless
Omnipoint Communications Cap Operations, LLC
2010/11/05
(240) 408-3
Landline
Paetec Communications, Inc. - CA
2010/07/30
(240) 408-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 408-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 408-6
Wireless
Omnipoint Communications Cap Operations, LLC
2010/11/05
(240) 408-7
Landline
Xo Maryland, LLC
2011/03/03
(240) 408-8
Landline
Xo Maryland, LLC
2011/03/03
(240) 408-9
Wireless
Omnipoint Communications Cap Operations, LLC
2012/11/13
Wireless
Omnipoint Communications Cap Operations, LLC
2001/03/12
(240) 413-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 413-1
Wireless
Omnipoint Communications Cap Operations, LLC
2005/07/18
(240) 413-2
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 413-3
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 413-4
Wireless
Omnipoint Communications Cap Operations, LLC
2006/05/11
(240) 413-5
Wireless
Omnipoint Communications Cap Operations, LLC
2006/07/26
(240) 413-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 413-7
Wireless
Omnipoint Communications Cap Operations, LLC
2006/11/17
(240) 413-8
Wireless
Omnipoint Communications Cap Operations, LLC
2007/01/10
(240) 413-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
Landline
Peerless Network of Maryland, LLC
-
(240) 414-0
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 414-1
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 414-2
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 414-3
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 414-4
Landline
Onvoy, LLC - MD
2020/03/31
(240) 414-5
Landline
Peerless Network of Maryland, LLC
2020/07/28
(240) 414-6
Landline
Peerless Network of Maryland, LLC
2020/03/17
(240) 414-8
Landline
Onvoy, LLC - MD
2020/05/12
(240) 414-9
Landline
Peerless Network of Maryland, LLC
-
(240) 417
Wireless
Sprint Spectrum, L.P.
-
(240) 418
Wireless
Sprint Spectrum, L.P.
2001/11/12
Wireless
Omnipoint Communications Cap Operations, LLC
2001/04/09
(240) 421-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 421-1
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 421-2
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 421-3
Wireless
Omnipoint Communications Cap Operations, LLC
2005/07/07
(240) 421-4
Wireless
Omnipoint Communications Cap Operations, LLC
2005/08/17
(240) 421-5
Wireless
Omnipoint Communications Cap Operations, LLC
2005/09/12
(240) 421-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 421-7
Wireless
Omnipoint Communications Cap Operations, LLC
2005/11/17
(240) 421-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/06/17
(240) 421-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 423
Wireless
Omnipoint Communications Cap Operations, LLC
2001/05/21
Wireless
Sprint Spectrum, L.P.
2007/11/16
(240) 424-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/20
(240) 424-1
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 424-2
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 424-3
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 424-4
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 424-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/04/05
(240) 424-6
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 424-7
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 424-8
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 424-9
Wireless
Sprint Spectrum, L.P.
2007/11/21
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 425-0
Landline
Telnyx LLC
2021/04/27
(240) 425-1
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 425-2
Wireless
Omnipoint Communications Cap Operations, LLC
2004/01/13
(240) 425-3
Wireless
Omnipoint Communications Cap Operations, LLC
2005/03/02
(240) 425-4
Landline
Level 3 Communications, LLC - AK
-
(240) 425-7
Wireless
Omnipoint Communications Cap Operations, LLC
2004/03/29
(240) 425-8
Wireless
Cellco Partnership DBA Verizon Wireless
2019/08/06
(240) 425-9
Wireless
Cellco Partnership DBA Verizon Wireless
2019/08/01
(240) 426
Wireless
Sprint Spectrum, L.P.
2001/10/25
Landline
Bandwidth.com CLEC, LLC - MD
-
(240) 428-0
Landline
Bandwidth.com CLEC, LLC - MD
2012/06/18
(240) 428-1
Landline
Comcast IP Phone, LLC
2011/01/14
(240) 428-2
Landline
Level 3 Communications, LLC - AK
2011/03/23
(240) 428-3
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/13
(240) 428-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/13
(240) 428-5
Wireless
T-mobile USA, Inc.
2013/07/02
(240) 428-6
Landline
Level 3 Communications, LLC - AK
2011/08/31
(240) 428-7
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/21
(240) 428-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/02/05
(240) 428-9
Wireless
Cellco Partnership DBA Verizon Wireless
2013/04/23
Wireless
Cellco Partnership DBA Verizon Wireless
2006/12/19
(240) 429-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/12/20
(240) 429-1
Wireless
Omnipoint Communications Cap Operations, LLC
2007/02/13
(240) 429-2
Wireless
Omnipoint Communications Cap Operations, LLC
2007/02/22
(240) 429-3
Wireless
Cellco Partnership DBA Verizon Wireless
2007/03/06
(240) 429-4
Wireless
Cellco Partnership DBA Verizon Wireless
2007/03/06
(240) 429-5
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/04
(240) 429-6
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/04
(240) 429-7
Wireless
Cellco Partnership DBA Verizon Wireless
2007/12/27
(240) 429-8
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/04
(240) 429-9
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/04
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-6
Landline
Vonage America LLC
2020/05/08
(240) 430-7
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 430-8
Landline
Vonage America LLC
2020/05/08
(240) 430-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 432
Wireless
Sprint Spectrum, L.P.
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 433-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 433-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 433-2
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 433-3
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/24
(240) 433-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 433-6
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 433-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-0
Wireless
Sprint Spectrum, L.P.
2011/09/28
(240) 438-1
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-2
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-3
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-4
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-5
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-6
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-7
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-8
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 438-9
Wireless
Sprint Spectrum, L.P.
2011/08/15
(240) 441
Wireless
Omnipoint Communications Cap Operations, LLC
2001/06/06
Landline
Onvoy, LLC - MD
2020/11/06
(240) 443-2
Landline
Onvoy, LLC - MD
2020/11/09
(240) 443-3
Landline
Onvoy, LLC - MD
2020/11/09
(240) 443-4
Landline
Onvoy, LLC - MD
2020/11/09
(240) 443-7
Wireless
Onvoy Spectrum, LLC
2021/04/21
Wireless
Sprint Spectrum, L.P.
2011/11/10
(240) 445-0
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-1
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-2
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-3
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-4
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-5
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-6
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-7
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-8
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 445-9
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 447
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 450-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 450-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 450-2
Landline
Level 3 Communications, LLC - AK
2005/03/08
(240) 450-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 450-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 450-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 450-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 450-7
Landline
Vonage America LLC
2020/05/08
(240) 450-8
Landline
Vonage America LLC
2020/05/08
(240) 450-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Verizon Maryland, Inc.
-
(240) 453-0
Landline
Verizon Maryland, Inc.
-
(240) 453-1
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/05
(240) 453-2
Landline
Verizon Maryland, Inc.
-
(240) 453-3
Landline
Verizon Maryland, Inc.
-
(240) 453-4
Landline
Onvoy, LLC - MD
2014/10/10
(240) 453-5
Landline
Verizon Maryland, Inc.
-
(240) 453-6
Landline
Verizon Maryland, Inc.
-
(240) 453-7
Landline
Verizon Maryland, Inc.
-
(240) 453-8
Landline
Verizon Maryland, Inc.
-
(240) 453-9
Landline
Verizon Maryland, Inc.
-
Landline
Paetec Communications, Inc. - CA
2001/06/20
(240) 455-0
Landline
Paetec Communications, Inc. - CA
-
(240) 455-1
Landline
Paetec Communications, Inc. - CA
-
(240) 455-2
Wireless
Sprint Spectrum, L.P.
2004/10/05
(240) 455-3
Landline
Level 3 Communications, LLC - AK
2004/12/27
(240) 455-4
Landline
Level 3 Communications, LLC - AK
2002/12/23
(240) 455-5
Landline
Level 3 Communications, LLC - AK
2004/12/27
(240) 455-6
Landline
Comcast IP Phone, LLC
2007/06/11
(240) 455-7
Landline
Comcast IP Phone, LLC
2007/06/11
(240) 455-8
Wireless
Sprint Spectrum, L.P.
2005/07/14
(240) 455-9
Landline
Paetec Communications, Inc. - CA
-
(240) 460
Wireless
New Cingular Wireless PCS, LLC
-
(240) 461
Wireless
New Cingular Wireless PCS, LLC
-
(240) 462
Wireless
Sprint Spectrum, L.P.
-
(240) 463
Wireless
New Cingular Wireless PCS, LLC
-
Wireless
Sprint Spectrum, L.P.
-
(240) 464-0
Wireless
Sprint Spectrum, L.P.
2005/12/01
(240) 464-1
Wireless
Sprint Spectrum, L.P.
2003/09/17
(240) 464-2
Wireless
Sprint Spectrum, L.P.
2006/08/16
(240) 464-3
Wireless
Sprint Spectrum, L.P.
2003/09/17
(240) 464-4
Wireless
Sprint Spectrum, L.P.
2003/10/13
(240) 464-5
Wireless
Omnipoint Communications Cap Operations, LLC
2005/08/26
(240) 464-6
Wireless
Sprint Spectrum, L.P.
2003/11/10
(240) 464-7
Wireless
Sprint Spectrum, L.P.
2003/12/05
(240) 464-8
Wireless
Sprint Spectrum, L.P.
2003/12/05
(240) 464-9
Wireless
Sprint Spectrum, L.P.
2006/08/02
Landline
Peerless Network of Maryland, LLC
-
(240) 465-0
Landline
Peerless Network of Maryland, LLC
-
(240) 465-2
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 465-3
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 465-4
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 465-5
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 465-6
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 465-7
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 465-8
Landline
Core Communications, Inc.- MD
2019/06/10
(240) 465-9
Landline
Peerless Network of Maryland, LLC
-
Landline
Comcast IP Phone, LLC
2013/04/25
(240) 467-0
Wireless
Omnipoint Communications Cap Operations, LLC
2013/06/25
(240) 467-1
Wireless
Omnipoint Communications Cap Operations, LLC
2013/06/25
(240) 467-2
Landline
Comcast IP Phone, LLC
2013/04/25
(240) 467-3
Landline
Comcast IP Phone, LLC
2013/09/09
(240) 467-4
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/12
(240) 467-5
Landline
Comcast IP Phone, LLC
2013/12/11
(240) 467-6
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/12
(240) 467-7
Wireless
Omnipoint Communications Cap Operations, LLC
2013/08/21
(240) 467-8
Wireless
Omnipoint Communications Cap Operations, LLC
2013/08/21
(240) 467-9
Landline
Local Access LLC - MD
2013/08/12
Wireless
Sprint Spectrum, L.P.
2007/11/16
(240) 468-0
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 468-1
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 468-2
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 468-3
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 468-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/27
(240) 468-5
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 468-6
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 468-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/27
(240) 468-8
Wireless
Sprint Spectrum, L.P.
2007/11/21
(240) 468-9
Wireless
Sprint Spectrum, L.P.
2007/11/21
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 471-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 471-2
Landline
Onvoy, LLC - MD
2021/03/03
(240) 471-3
Landline
Paetec Communications, Inc. - CA
2005/02/02
(240) 471-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 471-5
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 471-6
Landline
Onvoy, LLC - MD
2014/10/10
(240) 471-7
Landline
Onvoy, LLC - MD
2021/03/03
(240) 471-8
Landline
Onvoy, LLC - MD
2021/03/03
(240) 471-9
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 472
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 473-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 473-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 473-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(240) 473-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(240) 473-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 473-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 473-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 473-7
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 473-8
Wireless
T-mobile USA, Inc.
2020/12/07
(240) 473-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 475
Wireless
New Cingular Wireless PCS, LLC
-
(240) 476
Wireless
Omnipoint Communications Cap Operations, LLC
2001/02/21
Wireless
New Cingular Wireless PCS, LLC
2004/07/27
(240) 478-0
Wireless
Omnipoint Communications Cap Operations, LLC
2005/12/27
(240) 478-1
Wireless
New Cingular Wireless PCS, LLC
2004/08/25
(240) 478-2
Wireless
New Cingular Wireless PCS, LLC
2004/08/25
(240) 478-3
Wireless
New Cingular Wireless PCS, LLC
2004/08/25
(240) 478-4
Wireless
Omnipoint Communications Cap Operations, LLC
2005/11/11
(240) 478-5
Wireless
Omnipoint Communications Cap Operations, LLC
2005/11/23
(240) 478-6
Landline
Level 3 Communications, LLC - AK
2005/12/29
(240) 478-7
Wireless
Cellco Partnership DBA Verizon Wireless
2006/02/06
(240) 478-8
Wireless
Cellco Partnership DBA Verizon Wireless
2006/01/05
(240) 478-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/01/05
Wireless
Cellco Partnership DBA Verizon Wireless
2008/04/07
(240) 479-0
Wireless
Cellco Partnership DBA Verizon Wireless
2008/04/10
(240) 479-1
Wireless
Cellco Partnership DBA Verizon Wireless
2008/04/10
(240) 479-2
Landline
Paetec Communications, Inc. - CA
2008/09/15
(240) 479-3
Landline
Ymax Communications Corp. - MD
2008/09/24
(240) 479-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(240) 479-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/10/16
(240) 479-6
Wireless
Sprint Spectrum, L.P.
2008/11/17
(240) 479-7
Landline
Paetec Communications, Inc. - CA
2009/11/16
(240) 479-8
Wireless
Cellco Partnership DBA Verizon Wireless
2010/05/05
(240) 479-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
Wireless
Sprint Spectrum, L.P.
2010/09/27
(240) 480-0
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-1
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-2
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-3
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-4
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-5
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-6
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-7
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-8
Wireless
Sprint Spectrum, L.P.
2010/09/29
(240) 480-9
Wireless
Sprint Spectrum, L.P.
2010/09/29
Wireless
Omnipoint Communications Cap Operations, LLC
2001/05/11
(240) 481-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 481-1
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 481-2
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 481-3
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 481-4
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 481-5
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 481-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 481-7
Wireless
Omnipoint Communications Cap Operations, LLC
2002/11/25
(240) 481-8
Wireless
Omnipoint Communications Cap Operations, LLC
2002/11/25
(240) 481-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
Landline
Us Lec of Maryland, Inc.
-
(240) 482-0
Landline
Us Lec of Maryland, Inc.
-
(240) 482-1
Landline
Us Lec of Maryland, Inc.
-
(240) 482-2
Landline
Us Lec of Maryland, Inc.
-
(240) 482-3
Landline
Us Lec of Maryland, Inc.
-
(240) 482-4
Landline
Us Lec of Maryland, Inc.
-
(240) 482-5
Wireless
Sprint Spectrum, L.P.
2004/11/30
(240) 482-6
Wireless
Sprint Spectrum, L.P.
2005/06/28
(240) 482-7
Wireless
Sprint Spectrum, L.P.
2005/06/28
(240) 482-8
Landline
Level 3 Communications, LLC - AK
2004/12/01
(240) 482-9
Wireless
Sprint Spectrum, L.P.
2007/08/27
Landline
Comcast IP Phone, LLC
-
(240) 483-0
Landline
Comcast IP Phone, LLC
-
(240) 483-1
Wireless
Sprint Spectrum, L.P.
2004/02/25
(240) 483-2
Wireless
Sprint Spectrum, L.P.
2004/01/23
(240) 483-3
Wireless
Sprint Spectrum, L.P.
2004/01/23
(240) 483-4
Landline
Level 3 Communications, LLC - AK
2002/12/23
(240) 483-5
Wireless
Sprint Spectrum, L.P.
2004/01/14
(240) 483-6
Wireless
Sprint Spectrum, L.P.
2003/10/30
(240) 483-7
Wireless
Sprint Spectrum, L.P.
2003/09/05
(240) 483-8
Wireless
Sprint Spectrum, L.P.
2003/09/05
(240) 483-9
Wireless
Sprint Spectrum, L.P.
2003/08/11
Landline
Us Lec of Maryland, Inc.
-
(240) 485-0
Landline
Us Lec of Maryland, Inc.
-
(240) 485-1
Landline
Us Lec of Maryland, Inc.
-
(240) 485-2
Landline
Us Lec of Maryland, Inc.
-
(240) 485-3
Landline
Us Lec of Maryland, Inc.
-
(240) 485-4
Wireless
New Cingular Wireless PCS, LLC
2003/10/15
(240) 485-5
Landline
Us Lec of Maryland, Inc.
-
(240) 485-6
Wireless
New Cingular Wireless PCS, LLC
2003/10/15
(240) 485-7
Wireless
New Cingular Wireless PCS, LLC
2004/01/15
(240) 485-8
Wireless
New Cingular Wireless PCS, LLC
2004/01/15
(240) 485-9
Wireless
New Cingular Wireless PCS, LLC
2014/10/27
Wireless
Omnipoint Communications Cap Operations, LLC
2001/03/12
(240) 486-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 486-1
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 486-2
Wireless
Omnipoint Communications Cap Operations, LLC
2007/11/19
(240) 486-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(240) 486-4
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(240) 486-5
Wireless
Omnipoint Communications Cap Operations, LLC
2007/06/20
(240) 486-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 486-7
Wireless
Omnipoint Communications Cap Operations, LLC
2007/11/05
(240) 486-8
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
(240) 486-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
Landline
Us Lec of Maryland, Inc.
-
(240) 487-0
Landline
Us Lec of Maryland, Inc.
-
(240) 487-1
Landline
Us Lec of Maryland, Inc.
-
(240) 487-2
Landline
Us Lec of Maryland, Inc.
-
(240) 487-3
Landline
Us Lec of Maryland, Inc.
-
(240) 487-4
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(240) 487-5
Landline
Us Lec of Maryland, Inc.
-
(240) 487-6
Landline
Comcast IP Phone, LLC
2005/07/07
(240) 487-7
Landline
Lightwave Communications, LLC - MD
2005/06/08
(240) 487-8
Wireless
Omnipoint Communications Cap Operations, LLC
2011/07/12
(240) 487-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 491-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 491-1
Wireless
Omnipoint Communications Cap Operations, LLC
2004/11/05
(240) 491-2
Wireless
Omnipoint Communications Cap Operations, LLC
2004/11/05
(240) 491-3
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 491-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 491-5
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 491-6
Wireless
Omnipoint Communications Cap Operations, LLC
2004/12/27
(240) 491-7
Wireless
Omnipoint Communications Cap Operations, LLC
2005/01/21
(240) 491-8
Wireless
Sprint Spectrum, L.P.
2005/06/06
(240) 491-9
Landline
Global Crossing Local Services, Inc. - KY
-
Landline
Us Lec of Maryland, Inc.
-
(240) 492-0
Landline
Us Lec of Maryland, Inc.
-
(240) 492-1
Landline
Us Lec of Maryland, Inc.
-
(240) 492-2
Landline
Us Lec of Maryland, Inc.
-
(240) 492-3
Landline
Us Lec of Maryland, Inc.
-
(240) 492-4
Landline
Us Lec of Maryland, Inc.
-
(240) 492-5
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/02
(240) 492-6
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/30
(240) 492-7
Landline
Level 3 Communications, LLC - AK
2007/08/16
(240) 492-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/14
(240) 492-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/06/26
Landline
Us Lec of Maryland, Inc.
-
(240) 493-0
Landline
Us Lec of Maryland, Inc.
-
(240) 493-1
Landline
Us Lec of Maryland, Inc.
-
(240) 493-2
Landline
Us Lec of Maryland, Inc.
-
(240) 493-3
Landline
Us Lec of Maryland, Inc.
-
(240) 493-4
Landline
Comcast IP Phone, LLC
2007/09/10
(240) 493-5
Landline
Us Lec of Maryland, Inc.
-
(240) 493-6
Landline
Comcast IP Phone, LLC
2007/06/19
(240) 493-7
Landline
Comcast IP Phone, LLC
2006/11/29
(240) 493-8
Landline
Level 3 Communications, LLC - AK
2008/02/01
(240) 493-9
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
Landline
Cavalier East, LLC - MD
2001/05/09
(240) 494-0
Landline
Cavalier East, LLC - MD
-
(240) 494-1
Landline
Cavalier East, LLC - MD
-
(240) 494-2
Landline
Cavalier East, LLC - MD
-
(240) 494-3
Landline
Cavalier East, LLC - MD
-
(240) 494-4
Landline
Cavalier East, LLC - MD
-
(240) 494-5
Landline
Cavalier East, LLC - MD
-
(240) 494-6
Wireless
New Cingular Wireless PCS, LLC
2004/01/15
(240) 494-7
Landline
Cavalier East, LLC - MD
-
(240) 494-8
Landline
Cavalier East, LLC - MD
-
(240) 494-9
Landline
Cavalier East, LLC - MD
-
Wireless
Cellco Partnership DBA Verizon Wireless
2013/10/29
(240) 495-0
Wireless
Cellco Partnership DBA Verizon Wireless
2013/10/30
(240) 495-1
Wireless
Cellco Partnership DBA Verizon Wireless
2014/03/28
(240) 495-2
Wireless
Cellco Partnership DBA Verizon Wireless
2014/12/05
(240) 495-3
Wireless
Cellco Partnership DBA Verizon Wireless
2014/05/22
(240) 495-4
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
(240) 495-5
Wireless
Cellco Partnership DBA Verizon Wireless
2014/06/17
(240) 495-6
Landline
Level 3 Communications, LLC - AK
2014/06/10
(240) 495-7
Landline
Centurylink Communications, LLC LA
2014/03/05
(240) 495-8
Wireless
Omnipoint Communications Cap Operations, LLC
2014/07/10
(240) 495-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/07/10
Landline
Verizon Maryland, Inc.
-
(240) 497-0
Landline
Verizon Maryland, Inc.
-
(240) 497-1
Landline
Verizon Maryland, Inc.
-
(240) 497-2
Landline
Verizon Maryland, Inc.
-
(240) 497-3
Landline
Verizon Maryland, Inc.
-
(240) 497-4
Landline
Verizon Maryland, Inc.
-
(240) 497-5
Landline
Verizon Maryland, Inc.
-
(240) 497-6
Landline
Verizon Maryland, Inc.
-
(240) 497-7
Wireless
Brightlink Communications, LLC
2018/06/25
(240) 497-8
Landline
Verizon Maryland, Inc.
-
(240) 497-9
Landline
Verizon Maryland, Inc.
-
(240) 498
Wireless
Sprint Spectrum, L.P.
-
Landline
Us Lec of Maryland, Inc.
-
(240) 499-0
Landline
Us Lec of Maryland, Inc.
-
(240) 499-1
Landline
Us Lec of Maryland, Inc.
-
(240) 499-2
Landline
Us Lec of Maryland, Inc.
-
(240) 499-3
Landline
Us Lec of Maryland, Inc.
-
(240) 499-4
Wireless
Cellco Partnership DBA Verizon Wireless
2005/05/04
(240) 499-5
Wireless
Cellco Partnership DBA Verizon Wireless
2005/05/04
(240) 499-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/05/04
(240) 499-7
Landline
Us Lec of Maryland, Inc.
-
(240) 499-8
Landline
Comcast IP Phone, LLC
2006/09/12
(240) 499-9
Landline
Us Lec of Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
(240) 501
Wireless
Sprint Spectrum, L.P.
2001/10/08
Wireless
Sprint Spectrum, L.P.
2011/10/04
(240) 502-0
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-1
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-2
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-3
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-4
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-5
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-6
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-7
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-8
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 502-9
Wireless
Sprint Spectrum, L.P.
2011/10/05
Wireless
Sprint Spectrum, L.P.
2011/10/04
(240) 504-0
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-1
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-2
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-3
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-4
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-5
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-6
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-7
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-8
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 504-9
Wireless
Sprint Spectrum, L.P.
2011/10/05
(240) 505
Wireless
Omnipoint Communications Cap Operations, LLC
2001/10/31
Wireless
New Cingular Wireless PCS, LLC
2002/01/09
(240) 506-0
Wireless
New Cingular Wireless PCS, LLC
-
(240) 506-1
Wireless
New Cingular Wireless PCS, LLC
-
(240) 506-2
Wireless
New Cingular Wireless PCS, LLC
-
(240) 506-3
Wireless
New Cingular Wireless PCS, LLC
-
(240) 506-4
Wireless
New Cingular Wireless PCS, LLC
-
(240) 506-5
Wireless
New Cingular Wireless PCS, LLC
-
(240) 506-6
Wireless
New Cingular Wireless PCS, LLC
-
(240) 506-7
Wireless
New Cingular Wireless PCS, LLC
2003/01/13
(240) 506-8
Wireless
New Cingular Wireless PCS, LLC
2003/01/13
(240) 506-9
Wireless
New Cingular Wireless PCS, LLC
2003/12/19
Wireless
Cellco Partnership DBA Verizon Wireless
2008/09/05
(240) 507-0
Wireless
Cellco Partnership DBA Verizon Wireless
2008/09/09
(240) 507-1
Landline
Us Lec of Maryland, Inc.
2008/12/01
(240) 507-2
Wireless
Omnipoint Communications Cap Operations, LLC
2009/01/13
(240) 507-3
Wireless
Cellco Partnership DBA Verizon Wireless
2011/01/04
(240) 507-4
Wireless
Cellco Partnership DBA Verizon Wireless
2011/01/04
(240) 507-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(240) 507-6
Wireless
Cellco Partnership DBA Verizon Wireless
2009/05/04
(240) 507-7
Wireless
Cellco Partnership DBA Verizon Wireless
2008/12/09
(240) 507-8
Wireless
Cellco Partnership DBA Verizon Wireless
2009/05/04
(240) 507-9
Wireless
Cellco Partnership DBA Verizon Wireless
2011/04/04
(240) 508
Wireless
Sprint Spectrum, L.P.
-
Landline
Bandwidth.com CLEC, LLC - MD
2008/03/31
(240) 509-0
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/07
(240) 509-1
Landline
Peerless Network of Maryland, LLC
2013/04/09
(240) 509-2
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 509-3
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(240) 509-4
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 509-5
Landline
Core Communications, Inc.- MD
2018/05/24
(240) 509-6
Landline
Peerless Network of Maryland, LLC
2019/11/29
(240) 509-7
Landline
Centurylink Communications, LLC LA
2014/05/23
(240) 509-8
Landline
Peerless Network of Maryland, LLC
2013/04/09
(240) 509-9
Landline
Bandwidth.com CLEC, LLC - MD
2009/12/03
Landline
Xo Maryland, LLC
-
(240) 510-0
Landline
Xo Maryland, LLC
-
(240) 510-1
Landline
Xo Maryland, LLC
2007/02/26
(240) 510-2
Landline
Xo Maryland, LLC
2007/02/26
(240) 510-3
Landline
Comcast IP Phone, LLC
2012/12/17
(240) 510-4
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 510-5
Landline
Comcast IP Phone, LLC
2007/10/29
(240) 510-6
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 510-7
Wireless
T-mobile USA, Inc.
2014/04/16
(240) 510-8
Wireless
T-mobile USA, Inc.
2014/07/23
(240) 510-9
Landline
Xo Maryland, LLC
-
Landline
Core Communications, Inc.- MD
2006/08/08
(240) 512-0
Landline
Comcast IP Phone, LLC
2013/04/15
(240) 512-1
Landline
Onvoy, LLC - MD
2021/06/16
(240) 512-2
Landline
Mcimetro Access Transmission Services LLC
2007/11/09
(240) 512-3
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(240) 512-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/06/18
(240) 512-5
Landline
Peerless Network of Maryland, LLC
2012/10/30
(240) 512-6
Landline
Onvoy, LLC - MD
2018/05/02
(240) 512-7
Landline
Centurylink Communications, LLC LA
2014/05/28
(240) 512-8
Landline
Onvoy, LLC - MD
2019/02/06
(240) 512-9
Landline
Onvoy, LLC - MD
2019/02/06
Landline
Us Lec of Maryland, Inc.
-
(240) 514-0
Landline
Us Lec of Maryland, Inc.
-
(240) 514-1
Landline
Us Lec of Maryland, Inc.
-
(240) 514-2
Landline
Us Lec of Maryland, Inc.
-
(240) 514-3
Landline
Us Lec of Maryland, Inc.
-
(240) 514-4
Landline
Bandwidth.com CLEC, LLC - MD
2011/02/23
(240) 514-5
Landline
Us Lec of Maryland, Inc.
-
(240) 514-6
Landline
Peerless Network of Maryland, LLC
2020/03/23
(240) 514-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
(240) 514-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
(240) 514-9
Landline
Core Communications, Inc.- MD
2018/10/12
Wireless
New Cingular Wireless PCS, LLC
2001/06/20
(240) 515-0
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 515-1
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 515-2
Wireless
Sprint Spectrum, L.P.
2004/01/08
(240) 515-3
Wireless
Sprint Spectrum, L.P.
2004/11/01
(240) 515-4
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 515-5
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 515-6
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 515-7
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 515-8
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(240) 515-9
Wireless
Sprint Spectrum, L.P.
2006/01/24
Landline
Us Lec of Maryland, Inc.
-
(240) 516-0
Landline
Us Lec of Maryland, Inc.
-
(240) 516-1
Landline
Us Lec of Maryland, Inc.
-
(240) 516-2
Landline
Us Lec of Maryland, Inc.
-
(240) 516-3
Landline
Us Lec of Maryland, Inc.
-
(240) 516-4
Wireless
T-mobile USA, Inc.
2013/05/23
(240) 516-5
Landline
Us Lec of Maryland, Inc.
-
(240) 516-6
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/07
(240) 516-7
Landline
Xo Maryland, LLC
2007/03/08
(240) 516-8
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(240) 516-9
Wireless
T-mobile USA, Inc.
2013/07/02
Wireless
Sprint Spectrum, L.P.
2011/11/10
(240) 519-0
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-1
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-2
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-3
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-4
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-5
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-6
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-7
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-8
Wireless
Sprint Spectrum, L.P.
2011/11/14
(240) 519-9
Wireless
Sprint Spectrum, L.P.
2011/11/14
Landline
Peerless Network of Maryland, LLC
-
(240) 525-5
Landline
Terra Nova Telecom Inc.
2020/12/28
(240) 525-9
Landline
Peerless Network of Maryland, LLC
-
Landline
Telnyx LLC
2017/03/07
(240) 531-0
Landline
Telnyx LLC
2017/03/09
(240) 531-1
Landline
Onvoy, LLC - MD
2017/05/08
(240) 531-2
Landline
Comcast IP Phone, LLC
2017/03/30
(240) 531-3
Landline
Bandwidth.com CLEC, LLC - MD
2018/09/21
(240) 531-4
Landline
Mcimetro Access Transmission Services LLC
2018/06/26
(240) 531-5
Landline
Mcimetro Access Transmission Services LLC
2018/06/26
(240) 531-6
Landline
Mcimetro Access Transmission Services LLC
2018/06/26
(240) 531-7
Landline
Bandwidth.com CLEC, LLC - MD
2019/02/18
(240) 531-8
Landline
Bandwidth.com CLEC, LLC - MD
2019/02/18
(240) 531-9
Landline
Local Access LLC - MD
2019/03/28
Wireless
Cellco Partnership DBA Verizon Wireless
2013/10/29
(240) 532-0
Wireless
Cellco Partnership DBA Verizon Wireless
2013/10/30
(240) 532-1
Wireless
Cellco Partnership DBA Verizon Wireless
2015/03/26
(240) 532-2
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(240) 532-3
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(240) 532-4
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(240) 532-5
Landline
Comcast IP Phone, LLC
2013/11/07
(240) 532-6
Landline
Comcast IP Phone, LLC
2013/11/08
(240) 532-7
Landline
Comcast IP Phone, LLC
2013/11/08
(240) 532-8
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(240) 532-9
Wireless
Cellco Partnership DBA Verizon Wireless
2014/05/22
Landline
Teleport Communications America - ID - LLC
-
(240) 533-0
Landline
Teleport Communications America - ID - LLC
-
(240) 533-1
Wireless
Omnipoint Communications Cap Operations, LLC
2005/06/23
(240) 533-2
Wireless
Sprint Spectrum, L.P.
2004/04/27
(240) 533-3
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(240) 533-4
Wireless
Sprint Spectrum, L.P.
2011/08/09
(240) 533-5
Wireless
Sprint Spectrum, L.P.
2004/06/16
(240) 533-6
Wireless
Omnipoint Communications Cap Operations, LLC
2005/06/10
(240) 533-7
Wireless
Sprint Spectrum, L.P.
2004/09/08
(240) 533-8
Wireless
Sprint Spectrum, L.P.
2004/10/13
(240) 533-9
Landline
Teleport Communications America - ID - LLC
-
Wireless
Cellco Partnership DBA Verizon Wireless
2016/04/11
(240) 534-0
Landline
Local Access LLC - MD
2016/05/02
(240) 534-1
Landline
Onvoy, LLC - MD
2016/06/09
(240) 534-2
Landline
Comcast IP Phone, LLC
2016/05/04
(240) 534-3
Landline
Bandwidth.com CLEC, LLC - MD
2016/07/22
(240) 534-4
Wireless
Brightlink Communications, LLC
2016/08/01
(240) 534-5
Wireless
Brightlink Communications, LLC
2016/08/01
(240) 534-6
Wireless
Brightlink Communications, LLC
2016/08/01
(240) 534-7
Wireless
Brightlink Communications, LLC
2016/08/01
(240) 534-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/06/16
(240) 534-9
Wireless
Cellco Partnership DBA Verizon Wireless
2016/04/11
(240) 535
Wireless
New Cingular Wireless PCS, LLC
2001/01/09
Landline
Peerless Network of Maryland, LLC
-
(240) 539-0
Wireless
Cellco Partnership DBA Verizon Wireless
2020/01/14
(240) 539-1
Wireless
Cellco Partnership DBA Verizon Wireless
2020/12/07
(240) 539-2
Wireless
Cellco Partnership DBA Verizon Wireless
2020/08/26
(240) 539-3
Landline
Peerless Network of Maryland, LLC
2020/03/23
(240) 539-4
Wireless
Cellco Partnership DBA Verizon Wireless
2020/08/26
(240) 539-5
Landline
Peerless Network of Maryland, LLC
2020/08/08
(240) 539-6
Wireless
Cellco Partnership DBA Verizon Wireless
2020/08/26
(240) 539-7
Wireless
Cellco Partnership DBA Verizon Wireless
2021/04/06
(240) 539-8
Wireless
Cellco Partnership DBA Verizon Wireless
2020/12/07
(240) 539-9
Landline
Peerless Network of Maryland, LLC
-
Landline
Wide Voice, LLC - MD
2016/10/05
(240) 540-0
Landline
Telnyx LLC
2019/09/03
(240) 540-1
Landline
Wide Voice, LLC - MD
2016/10/07
(240) 540-2
Landline
Twilio International, Inc.
2020/11/25
(240) 540-3
Landline
Peerless Network of Maryland, LLC
2020/02/17
(240) 540-4
Landline
Onvoy, LLC - MD
2020/03/31
(240) 540-5
Landline
Onvoy, LLC - MD
2020/03/31
(240) 540-6
Landline
Onvoy, LLC - MD
2021/02/03
(240) 540-7
Landline
Onvoy, LLC - MD
2020/05/12
(240) 540-8
Landline
Onvoy, LLC - MD
2020/05/12
(240) 540-9
Landline
Onvoy, LLC - MD
2020/05/12
Wireless
Sprint Spectrum, L.P.
2011/10/31
(240) 541-0
Wireless
Sprint Spectrum, L.P.
2011/11/02
(240) 541-1
Wireless
Sprint Spectrum, L.P.
2011/11/02
(240) 541-2
Wireless
Sprint Spectrum, L.P.
2011/11/02
(240) 541-3
Wireless
Sprint Spectrum, L.P.
2011/11/02
(240) 541-4
Landline
Mcimetro Access Transmission Services LLC
2012/08/30
(240) 541-5
Landline
Onvoy, LLC - MD
2012/09/12
(240) 541-6
Landline
Teleport Communications America - ID - LLC
2012/09/24
(240) 541-7
Landline
Teleport Communications America - ID - LLC
2012/09/24
(240) 541-8
Landline
Teleport Communications America - ID - LLC
2012/09/24
(240) 541-9
Landline
Teleport Communications America - ID - LLC
2012/09/24
Landline
Us Lec of Maryland, Inc.
-
(240) 542-0
Landline
Us Lec of Maryland, Inc.
-
(240) 542-1
Landline
Us Lec of Maryland, Inc.
-
(240) 542-2
Landline
Us Lec of Maryland, Inc.
-
(240) 542-3
Landline
Us Lec of Maryland, Inc.
-
(240) 542-4
Landline
Comcast IP Phone, LLC
2009/12/01
(240) 542-5
Landline
Us Lec of Maryland, Inc.
-
(240) 542-6
Landline
Local Access LLC - MD
2010/07/21
(240) 542-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 542-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/10/25
(240) 542-9
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/29
Wireless
Sprint Spectrum, L.P.
2006/07/25
(240) 543-0
Wireless
Omnipoint Communications Cap Operations, LLC
2006/10/17
(240) 543-1
Wireless
Omnipoint Communications Cap Operations, LLC
2006/11/09
(240) 543-2
Wireless
Omnipoint Communications Cap Operations, LLC
2007/09/13
(240) 543-3
Wireless
Sprint Spectrum, L.P.
2006/10/02
(240) 543-4
Wireless
Sprint Spectrum, L.P.
2006/10/02
(240) 543-5
Wireless
Sprint Spectrum, L.P.
2006/10/02
(240) 543-6
Wireless
Sprint Spectrum, L.P.
2006/10/02
(240) 543-7
Wireless
Sprint Spectrum, L.P.
2006/10/02
(240) 543-8
Wireless
Sprint Spectrum, L.P.
2006/07/27
(240) 543-9
Wireless
Sprint Spectrum, L.P.
2006/07/27
Landline
Us Lec of Maryland, Inc.
-
(240) 544-0
Landline
Us Lec of Maryland, Inc.
-
(240) 544-1
Landline
Us Lec of Maryland, Inc.
-
(240) 544-2
Landline
Us Lec of Maryland, Inc.
-
(240) 544-3
Landline
Us Lec of Maryland, Inc.
-
(240) 544-4
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(240) 544-5
Landline
Us Lec of Maryland, Inc.
-
(240) 544-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(240) 544-7
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(240) 544-8
Wireless
Omnipoint Communications Cap Operations, LLC
2014/01/13
(240) 544-9
Landline
Core Communications, Inc.- MD
2018/10/11
Landline
Us Lec of Maryland, Inc.
-
(240) 545-0
Landline
Us Lec of Maryland, Inc.
-
(240) 545-1
Landline
Us Lec of Maryland, Inc.
-
(240) 545-2
Landline
Us Lec of Maryland, Inc.
-
(240) 545-3
Landline
Us Lec of Maryland, Inc.
-
(240) 545-4
Landline
Us Lec of Maryland, Inc.
-
(240) 545-5
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/24
(240) 545-6
Landline
Telnyx LLC
2017/04/17
(240) 545-7
Landline
Peerless Network of Maryland, LLC
2010/07/21
(240) 545-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
Landline
Us Lec of Maryland, Inc.
-
(240) 546-0
Landline
Us Lec of Maryland, Inc.
-
(240) 546-1
Landline
Us Lec of Maryland, Inc.
-
(240) 546-2
Landline
Us Lec of Maryland, Inc.
-
(240) 546-3
Landline
Us Lec of Maryland, Inc.
-
(240) 546-4
Landline
Us Lec of Maryland, Inc.
-
(240) 546-5
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 546-6
Landline
Onvoy, LLC - MD
2015/05/28
(240) 546-7
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 546-8
Landline
Local Access LLC - MD
2016/05/02
(240) 546-9
Landline
Core Communications, Inc.- MD
2019/04/15
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 548-0
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 548-1
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 548-2
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 548-3
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(240) 548-4
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 548-5
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 548-6
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 548-7
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(240) 548-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/04/01
(240) 548-9
Landline
Core Communications, Inc.- MD
2018/10/11
Wireless
New Cingular Wireless PCS, LLC
2009/03/26
(240) 550-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-1
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-2
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-3
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-4
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-5
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-6
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-7
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-8
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 550-9
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
Wireless
New Cingular Wireless PCS, LLC
2009/03/25
(240) 551-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-1
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-2
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-3
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-4
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-5
Landline
Onvoy, LLC - MD
2016/03/29
(240) 551-6
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-7
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-8
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 551-9
Wireless
Cellco Partnership DBA Verizon Wireless
2014/01/07
Wireless
New Cingular Wireless PCS, LLC
2009/03/25
(240) 552-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 552-1
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 552-2
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 552-3
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 552-4
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 552-5
Landline
Onvoy, LLC - MD
2016/03/29
(240) 552-6
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
(240) 552-7
Landline
Cbeyond Comm, LLC MD
2011/03/31
(240) 552-8
Landline
Level 3 Telecom of Maryland, LLC - MD
2015/01/20
(240) 552-9
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 553-0
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 553-1
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 553-2
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 553-3
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 553-4
Wireless
T-mobile USA, Inc.
2018/05/25
(240) 553-7
Landline
Comcast IP Phone, LLC
2013/08/23
(240) 553-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/03/24
(240) 553-9
Landline
Allegiance Telecom of Maryland, Inc.
-
(240) 555
Landline
Verizon Maryland, Inc.
-
Landline
Paetec Communications, Inc. - CA
-
(240) 556-0
Landline
Paetec Communications, Inc. - CA
-
(240) 556-1
Landline
Paetec Communications, Inc. - CA
-
(240) 556-2
Landline
Onvoy, LLC - MD
2008/05/21
(240) 556-3
Wireless
T-mobile USA, Inc.
2015/06/09
(240) 556-4
Wireless
T-mobile USA, Inc.
2015/08/27
(240) 556-5
Landline
Onvoy, LLC - MD
2016/02/16
(240) 556-6
Landline
Onvoy, LLC - MD
2015/05/28
(240) 556-7
Landline
Onvoy, LLC - MD
2016/02/16
(240) 556-8
Wireless
Omnipoint Communications Cap Operations, LLC
2015/07/15
(240) 556-9
Landline
Paetec Communications, Inc. - CA
-
Wireless
Omnipoint Communications Cap Operations, LLC
2017/03/14
(240) 557-0
Landline
Telnyx LLC
2017/04/11
(240) 557-1
Landline
Onvoy, LLC - MD
2017/06/30
(240) 557-2
Landline
Onvoy, LLC - MD
2017/12/15
(240) 557-3
Landline
Onvoy, LLC - MD
2017/12/15
(240) 557-4
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 557-5
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 557-6
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 557-7
Unknown
Barr Tell USA, Inc.
2018/04/26
(240) 557-8
Landline
Onvoy, LLC - MD
2020/03/31
(240) 557-9
Wireless
Omnipoint Communications Cap Operations, LLC
2017/03/16
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 558-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(240) 558-1
Landline
Onvoy, LLC - MD
2008/05/21
(240) 558-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(240) 558-3
Landline
Comcast IP Phone, LLC
2008/04/18
(240) 558-4
Landline
Comcast IP Phone, LLC
2008/04/18
(240) 558-5
Landline
Onvoy, LLC - MD
2012/09/12
(240) 558-6
Landline
Onvoy, LLC - MD
2015/07/15
(240) 558-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 558-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 558-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Landline
Xo Maryland, LLC
2001/04/23
(240) 560-0
Landline
Xo Maryland, LLC
-
(240) 560-1
Landline
Local Access LLC - MD
2013/08/12
(240) 560-2
Landline
Bandwidth.com CLEC, LLC - MD
2013/05/21
(240) 560-3
Landline
Bandwidth.com CLEC, LLC - MD
2013/05/21
(240) 560-4
Landline
Level 3 Communications, LLC - AK
2008/02/05
(240) 560-5
Landline
Level 3 Communications, LLC - AK
2008/01/23
(240) 560-6
Landline
Comcast IP Phone, LLC
2012/02/14
(240) 560-7
Landline
Comcast IP Phone, LLC
2007/05/08
(240) 560-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/10/25
(240) 560-9
Landline
Xo Maryland, LLC
-
Landline
Onvoy, LLC - MD
2017/07/05
(240) 563-0
Landline
Onvoy, LLC - MD
2017/07/06
(240) 563-1
Landline
Comcast IP Phone, LLC
2017/07/12
(240) 563-2
Wireless
Cellco Partnership DBA Verizon Wireless
2017/07/20
(240) 563-3
Wireless
Cellco Partnership DBA Verizon Wireless
2017/07/20
(240) 563-4
Landline
Peerless Network of Maryland, LLC
2018/10/22
(240) 563-5
Unknown
Barr Tell USA, Inc.
2018/04/26
(240) 563-6
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 563-7
Landline
Peerless Network of Maryland, LLC
2018/05/25
(240) 563-8
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 563-9
Landline
Onvoy, LLC - MD
2019/04/18
Landline
Verizon Maryland, Inc.
2006/07/12
(240) 567-0
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-1
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-2
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-3
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-4
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-5
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-6
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-7
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-8
Landline
Verizon Maryland, Inc.
2006/07/13
(240) 567-9
Landline
Verizon Maryland, Inc.
2006/07/13
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 573-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 573-1
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 573-2
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/07
(240) 573-3
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 573-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 573-6
Wireless
T-mobile USA, Inc.
2014/12/05
(240) 573-7
Landline
Level 3 Communications, LLC - AK
2012/05/16
(240) 573-8
Wireless
T-mobile USA, Inc.
2014/12/05
(240) 573-9
Landline
Local Access LLC - MD
2016/05/02
Landline
Verizon Maryland, Inc.
-
(240) 582-0
Landline
Verizon Maryland, Inc.
-
(240) 582-1
Landline
Ymax Communications Corp. - MD
2008/09/24
(240) 582-2
Landline
Verizon Maryland, Inc.
-
(240) 582-3
Landline
Xo Maryland, LLC
2010/03/30
(240) 582-4
Landline
Bandwidth.com CLEC, LLC - MD
2007/08/17
(240) 582-5
Landline
Comcast IP Phone, LLC
2012/09/12
(240) 582-6
Landline
Comcast IP Phone, LLC
2006/09/08
(240) 582-7
Landline
Comcast IP Phone, LLC
2006/09/08
(240) 582-8
Landline
Xo Maryland, LLC
2007/02/26
(240) 582-9
Landline
Xo Maryland, LLC
2007/02/26
Wireless
T-mobile USA, Inc.
2018/04/09
(240) 590-0
Unknown
Barr Tell USA, Inc.
2018/04/26
(240) 590-1
Landline
Core Communications, Inc.- MD
2018/06/12
(240) 590-2
Landline
Core Communications, Inc.- MD
2018/06/12
(240) 590-3
Landline
Core Communications, Inc.- MD
2018/06/12
(240) 590-4
Wireless
T-mobile USA, Inc.
2019/07/10
(240) 590-6
Landline
Peerless Network of Maryland, LLC
2020/01/27
(240) 590-7
Landline
Core Communications, Inc.- MD
2019/07/12
(240) 590-8
Landline
Core Communications, Inc.- MD
2019/07/12
(240) 590-9
Wireless
T-mobile USA, Inc.
2018/04/10
Landline
Verizon Maryland, Inc.
2016/07/01
(240) 592-0
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-1
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-2
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-3
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-4
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-5
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-6
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-7
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-8
Landline
Verizon Maryland, Inc.
2016/07/05
(240) 592-9
Landline
Verizon Maryland, Inc.
2016/07/05
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/13
(240) 595-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/18
(240) 595-1
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/18
(240) 595-2
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/18
(240) 595-3
Wireless
Cellco Partnership DBA Verizon Wireless
2006/11/09
(240) 595-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/12/05
(240) 595-5
Wireless
Omnipoint Communications Cap Operations, LLC
2007/01/10
(240) 595-6
Landline
Xo Maryland, LLC
2007/01/24
(240) 595-7
Wireless
Omnipoint Communications Cap Operations, LLC
2007/03/13
(240) 595-8
Wireless
Omnipoint Communications Cap Operations, LLC
2007/03/13
(240) 595-9
Wireless
Omnipoint Communications Cap Operations, LLC
2007/12/13
Landline
Level 3 Communications, LLC - AK
-
(240) 599-0
Landline
Level 3 Communications, LLC - AK
-
(240) 599-1
Landline
Level 3 Communications, LLC - AK
-
(240) 599-2
Landline
Level 3 Communications, LLC - AK
-
(240) 599-3
Landline
Level 3 Communications, LLC - AK
-
(240) 599-4
Landline
Level 3 Communications, LLC - AK
-
(240) 599-5
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(240) 599-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/05/04
(240) 599-7
Landline
Level 3 Communications, LLC - AK
-
(240) 599-8
Landline
Level 3 Communications, LLC - AK
-
(240) 599-9
Landline
Terra Nova Telecom Inc.
2021/06/21
Prefix
Type
Location
Carrier
Assigned
Wireless
Sprint Spectrum, L.P.
2011/04/27
(240) 600-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/19
(240) 600-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/29
(240) 600-2
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 600-3
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 600-4
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 600-5
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 600-6
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 600-7
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 600-8
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 600-9
Wireless
Sprint Spectrum, L.P.
2011/04/29
(240) 601
Wireless
Sprint Spectrum, L.P.
-
(240) 602
Wireless
Sprint Spectrum, L.P.
-
(240) 603
Wireless
Sprint Spectrum, L.P.
-
(240) 604
Wireless
Sprint Spectrum, L.P.
-
(240) 605
Wireless
Sprint Spectrum, L.P.
-
(240) 606
Wireless
Sprint Spectrum, L.P.
-
Landline
Core Communications, Inc.- MD
2018/06/11
(240) 610-0
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 610-1
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 610-2
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 610-3
Wireless
Omnipoint Communications Cap Operations, LLC
2018/12/20
(240) 610-4
Wireless
Cellco Partnership DBA Verizon Wireless
2019/09/12
(240) 610-5
Wireless
Cellco Partnership DBA Verizon Wireless
2019/09/12
(240) 610-6
Landline
Vonage America LLC
2020/05/08
(240) 610-7
Wireless
Omnipoint Communications Cap Operations, LLC
2019/10/10
(240) 610-8
Wireless
Cellco Partnership DBA Verizon Wireless
2018/11/28
(240) 610-9
Wireless
Cellco Partnership DBA Verizon Wireless
2021/07/20
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(240) 612-0
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-1
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-2
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-3
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-4
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-5
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-6
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-7
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-8
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
(240) 612-9
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/08/06
Landline
Us Lec of Maryland, Inc.
2012/04/05
(240) 613-0
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-1
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-2
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-3
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-4
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-5
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-6
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-7
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-8
Landline
Us Lec of Maryland, Inc.
2012/04/06
(240) 613-9
Landline
Us Lec of Maryland, Inc.
2012/04/06
Wireless
T-mobile USA, Inc.
2013/07/16
(240) 614-0
Wireless
Omnipoint Communications Cap Operations, LLC
2013/09/12
(240) 614-1
Wireless
Omnipoint Communications Cap Operations, LLC
2013/09/12
(240) 614-2
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(240) 614-3
Wireless
Cellco Partnership DBA Verizon Wireless
2013/10/25
(240) 614-4
Landline
Level 3 Communications, LLC - AK
2014/07/25
(240) 614-5
Wireless
T-mobile USA, Inc.
2014/08/18
(240) 614-6
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/27
(240) 614-7
Landline
Comcast IP Phone, LLC
2013/11/12
(240) 614-8
Wireless
T-mobile USA, Inc.
2014/08/18
(240) 614-9
Wireless
T-mobile USA, Inc.
2013/07/19
Wireless
T-mobile USA, Inc.
2013/05/29
(240) 615-0
Wireless
T-mobile USA, Inc.
2013/05/31
(240) 615-1
Wireless
T-mobile USA, Inc.
2013/05/31
(240) 615-2
Wireless
T-mobile USA, Inc.
2013/05/31
(240) 615-3
Wireless
T-mobile USA, Inc.
2013/05/31
(240) 615-4
Wireless
T-mobile USA, Inc.
2013/05/31
(240) 615-5
Wireless
T-mobile USA, Inc.
2013/05/31
(240) 615-6
Wireless
Omnipoint Communications Cap Operations, LLC
2013/09/12
(240) 615-7
Wireless
Omnipoint Communications Cap Operations, LLC
2013/09/12
(240) 615-8
Landline
Comcast IP Phone, LLC
2014/08/06
(240) 615-9
Wireless
T-mobile USA, Inc.
2013/05/31
Landline
Mcimetro Access Transmission Services LLC
-
(240) 616-0
Landline
Local Access LLC - MD
2013/08/12
(240) 616-1
Landline
Level 3 Communications, LLC - AK
2012/11/07
(240) 616-2
Landline
Onvoy, LLC - MD
2017/06/29
(240) 616-3
Landline
Mcimetro Access Transmission Services LLC
-
(240) 616-4
Landline
Onvoy, LLC - MD
2012/09/12
(240) 616-5
Wireless
T-mobile USA, Inc.
2014/12/10
(240) 616-6
Landline
Onvoy, LLC - MD
2021/01/19
(240) 616-7
Landline
Centurylink Communications, LLC LA
2013/08/05
(240) 616-8
Wireless
T-mobile USA, Inc.
2014/12/10
(240) 616-9
Landline
Core Communications, Inc.- MD
2018/10/11
Wireless
Cellco Partnership DBA Verizon Wireless
2014/10/07
(240) 618-0
Wireless
Cellco Partnership DBA Verizon Wireless
2014/10/08
(240) 618-1
Landline
Teleport Communications America - ID - LLC
2014/12/09
(240) 618-2
Landline
Onvoy, LLC - MD
2014/12/15
(240) 618-3
Landline
Onvoy, LLC - MD
2014/12/15
(240) 618-4
Wireless
Omnipoint Communications Cap Operations, LLC
2015/01/15
(240) 618-5
Wireless
Cellco Partnership DBA Verizon Wireless
2016/04/11
(240) 618-6
Wireless
Omnipoint Communications Cap Operations, LLC
2015/01/15
(240) 618-7
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
(240) 618-8
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
(240) 618-9
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/05
Landline
Comcast IP Phone, LLC
-
(240) 619-0
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/14
(240) 619-1
Landline
Ctc Communications Corp. - MD
2005/12/19
(240) 619-2
Landline
Comcast IP Phone, LLC
2007/09/20
(240) 619-3
Landline
Comcast IP Phone, LLC
2006/09/14
(240) 619-4
Landline
Comcast IP Phone, LLC
2006/09/14
(240) 619-5
Landline
Comcast IP Phone, LLC
2007/09/20
(240) 619-6
Wireless
Cellco Partnership DBA Verizon Wireless
2008/10/03
(240) 619-7
Landline
Xo Maryland, LLC
2007/06/29
(240) 619-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(240) 619-9
Wireless
Cellco Partnership DBA Verizon Wireless
2008/05/06
Landline
Mcimetro Access Transmission Services LLC
-
(240) 620-0
Landline
Mcimetro Access Transmission Services LLC
-
(240) 620-1
Wireless
Cellco Partnership DBA Verizon Wireless
2003/07/02
(240) 620-2
Wireless
Cellco Partnership DBA Verizon Wireless
2003/06/02
(240) 620-3
Wireless
Cellco Partnership DBA Verizon Wireless
2003/08/06
(240) 620-4
Wireless
Cellco Partnership DBA Verizon Wireless
2003/10/03
(240) 620-5
Wireless
Cellco Partnership DBA Verizon Wireless
2003/10/03
(240) 620-6
Wireless
Cellco Partnership DBA Verizon Wireless
2004/02/02
(240) 620-7
Wireless
Cellco Partnership DBA Verizon Wireless
2004/04/05
(240) 620-8
Wireless
Cellco Partnership DBA Verizon Wireless
2004/05/07
(240) 620-9
Wireless
Cellco Partnership DBA Verizon Wireless
2005/05/04
Landline
Bandwidth.com CLEC, LLC - MD
-
(240) 621-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/29
(240) 621-1
Landline
Bandwidth.com CLEC, LLC - MD
2013/05/21
(240) 621-2
Landline
Bandwidth.com CLEC, LLC - MD
2013/05/21
(240) 621-3
Landline
Xo Maryland, LLC
2011/09/28
(240) 621-4
Landline
Onvoy, LLC - MD
2016/03/29
(240) 621-5
Landline
Onvoy, LLC - MD
2016/03/29
(240) 621-6
Landline
Local Access LLC - MD
2017/06/13
(240) 621-7
Landline
Comcast IP Phone, LLC
2011/11/10
(240) 621-8
Landline
Telnyx LLC
2017/03/02
(240) 621-9
Landline
Core Communications, Inc.- MD
2018/10/12
Landline
Bandwidth.com CLEC, LLC - MD
2014/12/08
(240) 623-0
Landline
Bandwidth.com CLEC, LLC - MD
2014/12/12
(240) 623-1
Landline
Bandwidth.com CLEC, LLC - MD
2014/12/12
(240) 623-2
Landline
Onvoy, LLC - MD
2015/04/15
(240) 623-3
Landline
Local Access LLC - MD
2016/05/02
(240) 623-4
Wireless
Cellco Partnership DBA Verizon Wireless
2015/06/01
(240) 623-5
Landline
Onvoy, LLC - MD
2015/07/15
(240) 623-6
Wireless
Cellco Partnership DBA Verizon Wireless
2015/09/30
(240) 623-7
Landline
Onvoy, LLC - MD
2015/05/28
(240) 623-8
Landline
Onvoy, LLC - MD
2015/12/07
(240) 623-9
Landline
Onvoy, LLC - MD
2015/12/07
Landline
Verizon Maryland, Inc.
-
(240) 624-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/12/16
(240) 624-1
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 624-2
Landline
Onvoy, LLC - MD
2008/05/21
(240) 624-3
Landline
Verizon Maryland, Inc.
-
(240) 624-4
Landline
Onvoy, LLC - MD
2016/03/29
(240) 624-5
Landline
Verizon Maryland, Inc.
-
(240) 624-6
Landline
Onvoy, LLC - MD
2016/03/29
(240) 624-7
Landline
Onvoy, LLC - MD
2014/10/09
(240) 624-8
Landline
Verizon Maryland, Inc.
-
(240) 624-9
Landline
Onvoy, LLC - MD
2014/10/09
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 627-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 627-1
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 627-2
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 627-3
Landline
Level 3 Communications, LLC - AK
-
(240) 627-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 627-5
Landline
Core Communications, Inc.- MD
2018/10/12
(240) 627-6
Landline
Bandwidth.com CLEC, LLC - MD
2007/08/29
(240) 627-7
Landline
Ymax Communications Corp. - MD
2008/08/01
(240) 627-8
Landline
Ymax Communications Corp. - MD
2008/08/01
(240) 627-9
Landline
Global Crossing Local Services, Inc. - KY
-
Landline
Bandwidth.com CLEC, LLC - MD
2011/10/31
(240) 630-0
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/08
(240) 630-1
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/08
(240) 630-2
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/08
(240) 630-3
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(240) 630-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(240) 630-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(240) 630-6
Landline
Level 3 Telecom of Maryland, LLC - MD
2013/11/19
(240) 630-7
Landline
Centurylink Communications, LLC LA
2013/08/01
(240) 630-8
Landline
Comcast IP Phone, LLC
2013/07/22
(240) 630-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/02/26
Landline
Core Communications, Inc.- MD
2018/06/11
(240) 637-0
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 637-1
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 637-2
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 637-3
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 637-4
Landline
Level 3 Communications, LLC - AK
2018/07/20
(240) 637-5
Landline
Level 3 Communications, LLC - AK
2018/07/20
(240) 637-6
Landline
Level 3 Communications, LLC - AK
2018/07/20
(240) 637-7
Landline
Level 3 Communications, LLC - AK
2018/07/20
(240) 637-8
Landline
Level 3 Communications, LLC - AK
2018/07/20
(240) 637-9
Landline
Core Communications, Inc.- MD
2018/10/11
Landline
Level 3 Communications, LLC - AK
-
(240) 638-0
Landline
Level 3 Communications, LLC - AK
-
(240) 638-1
Landline
Level 3 Communications, LLC - AK
-
(240) 638-2
Landline
Level 3 Communications, LLC - AK
-
(240) 638-3
Landline
Level 3 Communications, LLC - AK
-
(240) 638-4
Landline
Level 3 Communications, LLC - AK
-
(240) 638-5
Landline
Paetec Communications, Inc. - CA
2009/11/16
(240) 638-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(240) 638-7
Wireless
Sprint Spectrum, L.P.
2011/08/09
(240) 638-8
Wireless
Sprint Spectrum, L.P.
2011/08/09
(240) 638-9
Landline
Level 3 Communications, LLC - AK
-
Landline
Peerless Network of Maryland, LLC
-
(240) 641-0
Landline
Onvoy, LLC - MD
2015/07/20
(240) 641-1
Landline
Onvoy, LLC - MD
2015/07/20
(240) 641-2
Wireless
New Cingular Wireless PCS, LLC
2014/10/27
(240) 641-3
Wireless
New Cingular Wireless PCS, LLC
2014/10/27
(240) 641-4
Landline
Comcast IP Phone, LLC
2014/11/24
(240) 641-5
Landline
Comcast IP Phone, LLC
2016/02/12
(240) 641-6
Unknown
Atlantech Online, Inc. - MD
2015/11/30
(240) 641-7
Landline
Onvoy, LLC - MD
2015/05/28
(240) 641-8
Landline
Comcast IP Phone, LLC
2015/09/03
(240) 641-9
Landline
Peerless Network of Maryland, LLC
2015/05/20
Unknown
Advanced Telecom Solutions, LLC
2018/08/02
(240) 642-0
Unknown
Advanced Telecom Solutions, LLC
2018/08/03
(240) 642-1
Wireless
Omnipoint Communications Cap Operations, LLC
2020/10/02
(240) 642-2
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 642-3
Landline
Peerless Network of Maryland, LLC
2019/10/18
(240) 642-4
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 642-5
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 642-6
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 642-7
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 642-8
Wireless
Cellco Partnership DBA Verizon Wireless
2019/02/11
(240) 642-9
Wireless
Omnipoint Communications Cap Operations, LLC
2020/10/02
Wireless
Omnipoint Communications Cap Operations, LLC
2002/05/16
(240) 643-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 643-1
Wireless
Omnipoint Communications Cap Operations, LLC
2003/02/26
(240) 643-2
Wireless
Omnipoint Communications Cap Operations, LLC
2003/02/26
(240) 643-3
Wireless
Omnipoint Communications Cap Operations, LLC
2003/03/10
(240) 643-4
Wireless
Omnipoint Communications Cap Operations, LLC
2003/03/10
(240) 643-5
Wireless
Omnipoint Communications Cap Operations, LLC
2003/03/10
(240) 643-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 643-7
Wireless
Omnipoint Communications Cap Operations, LLC
2003/04/15
(240) 643-8
Wireless
Omnipoint Communications Cap Operations, LLC
2003/04/15
(240) 643-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
Landline
Xo Maryland, LLC
-
(240) 644-0
Landline
Xo Maryland, LLC
-
(240) 644-1
Landline
Xo Maryland, LLC
-
(240) 644-2
Wireless
Omnipoint Communications Cap Operations, LLC
2004/05/10
(240) 644-3
Wireless
Omnipoint Communications Cap Operations, LLC
2004/06/17
(240) 644-4
Wireless
Sprint Spectrum, L.P.
2004/06/30
(240) 644-5
Wireless
Sprint Spectrum, L.P.
2004/06/30
(240) 644-6
Landline
Xo Maryland, LLC
-
(240) 644-7
Wireless
Sprint Spectrum, L.P.
2004/06/30
(240) 644-8
Wireless
Sprint Spectrum, L.P.
2004/03/15
(240) 644-9
Wireless
Sprint Spectrum, L.P.
2004/03/29
Landline
Xo Maryland, LLC
-
(240) 645-0
Landline
Xo Maryland, LLC
-
(240) 645-1
Landline
Xo Maryland, LLC
-
(240) 645-2
Wireless
Omnipoint Communications Cap Operations, LLC
2005/07/15
(240) 645-3
Wireless
Omnipoint Communications Cap Operations, LLC
2005/07/15
(240) 645-4
Landline
Xo Maryland, LLC
-
(240) 645-5
Wireless
New Cingular Wireless PCS, LLC
2004/07/08
(240) 645-6
Wireless
New Cingular Wireless PCS, LLC
2004/07/08
(240) 645-7
Wireless
New Cingular Wireless PCS, LLC
2004/07/08
(240) 645-8
Wireless
Omnipoint Communications Cap Operations, LLC
2005/08/17
(240) 645-9
Wireless
Sprint Spectrum, L.P.
2005/03/23
Landline
Onvoy, LLC - MD
2011/11/17
(240) 650-0
Landline
Bandwidth.com CLEC, LLC - MD
2013/02/08
(240) 650-1
Landline
Peerless Network of Maryland, LLC
2012/08/22
(240) 650-2
Landline
Level 3 Communications, LLC - AK
2013/02/06
(240) 650-3
Landline
Bandwidth.com CLEC, LLC - MD
2013/02/08
(240) 650-4
Landline
Bandwidth.com CLEC, LLC - MD
2013/02/08
(240) 650-5
Landline
Bandwidth.com CLEC, LLC - MD
2013/02/08
(240) 650-6
Landline
Bandwidth.com CLEC, LLC - MD
2013/02/08
(240) 650-7
Landline
Bandwidth.com CLEC, LLC - MD
2013/02/08
(240) 650-8
Landline
Level 3 Communications, LLC - AK
2012/01/30
(240) 650-9
Landline
Onvoy, LLC - MD
2012/02/06
Wireless
Cellco Partnership DBA Verizon Wireless
2015/03/31
(240) 660-0
Wireless
Cellco Partnership DBA Verizon Wireless
2015/03/31
(240) 660-1
Wireless
Cellco Partnership DBA Verizon Wireless
2015/08/07
(240) 660-2
Landline
Comcast IP Phone, LLC
2015/09/16
(240) 660-3
Landline
Onvoy, LLC - MD
2016/03/29
(240) 660-4
Landline
Onvoy, LLC - MD
2016/02/16
(240) 660-5
Landline
Onvoy, LLC - MD
2016/02/16
(240) 660-6
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(240) 660-7
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(240) 660-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(240) 660-9
Unknown
Atlantech Online, Inc. - MD
2015/11/30
(240) 662
Landline
Verizon Maryland, Inc.
-
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/09
(240) 665-0
Wireless
Omnipoint Communications Cap Operations, LLC
2017/03/09
(240) 665-1
Wireless
Omnipoint Communications Cap Operations, LLC
2017/03/09
(240) 665-2
Wireless
Omnipoint Communications Cap Operations, LLC
2018/11/07
(240) 665-3
Wireless
Omnipoint Communications Cap Operations, LLC
2019/10/10
(240) 665-4
Landline
Local Access LLC - MD
2017/06/13
(240) 665-5
Landline
Onvoy, LLC - MD
2017/06/30
(240) 665-6
Landline
Us Lec of Maryland, Inc.
2017/01/27
(240) 665-7
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 665-8
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/10
(240) 665-9
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/10
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 667-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 667-1
Landline
Comcast IP Phone, LLC
2006/06/26
(240) 667-2
Landline
Comcast IP Phone, LLC
2006/06/26
(240) 667-3
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 667-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 667-5
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 667-6
Wireless
Omnipoint Communications Cap Operations, LLC
2012/10/18
(240) 667-7
Landline
Level 3 Communications, LLC - AK
2007/06/21
(240) 667-8
Landline
Xo Maryland, LLC
2012/03/16
(240) 667-9
Landline
Global Crossing Local Services, Inc. - KY
-
Landline
Comcast IP Phone, LLC
-
(240) 669-0
Landline
Teleport Communications America - ID - LLC
2009/09/17
(240) 669-1
Landline
Local Access LLC - MD
2013/08/12
(240) 669-2
Landline
Level 3 Communications, LLC - AK
2012/01/31
(240) 669-3
Landline
Comcast IP Phone, LLC
2013/04/05
(240) 669-4
Landline
Comcast IP Phone, LLC
2013/05/07
(240) 669-5
Landline
Level 3 Communications, LLC - AK
2007/06/21
(240) 669-6
Landline
Comcast IP Phone, LLC
2006/11/16
(240) 669-7
Landline
Comcast IP Phone, LLC
2006/11/16
(240) 669-8
Landline
Comcast IP Phone, LLC
2006/11/16
(240) 669-9
Landline
Comcast IP Phone, LLC
2012/10/05
Landline
Local Access LLC - MD
2012/03/06
(240) 670-0
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/23
(240) 670-1
Landline
Onvoy, LLC - MD
2013/05/02
(240) 670-2
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(240) 670-3
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(240) 670-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(240) 670-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(240) 670-6
Landline
Bandwidth.com CLEC, LLC - MD
2012/05/14
(240) 670-7
Landline
Comcast IP Phone, LLC
2013/06/17
(240) 670-8
Landline
Comcast IP Phone, LLC
2014/02/25
(240) 670-9
Landline
Local Access LLC - MD
2013/08/12
Wireless
Sprint Spectrum, L.P.
-
(240) 671-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 671-1
Wireless
Sprint Spectrum, L.P.
2005/03/23
(240) 671-2
Wireless
Sprint Spectrum, L.P.
2005/03/31
(240) 671-3
Wireless
Sprint Spectrum, L.P.
2005/02/23
(240) 671-4
Wireless
Sprint Spectrum, L.P.
2005/02/23
(240) 671-5
Wireless
Sprint Spectrum, L.P.
2005/02/23
(240) 671-6
Wireless
Sprint Spectrum, L.P.
2004/12/07
(240) 671-7
Wireless
Sprint Spectrum, L.P.
2004/12/07
(240) 671-8
Wireless
Sprint Spectrum, L.P.
2005/03/31
(240) 671-9
Wireless
Sprint Spectrum, L.P.
2004/06/30
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 672-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(240) 672-1
Wireless
Cellco Partnership DBA Verizon Wireless
2004/05/07
(240) 672-2
Wireless
Cellco Partnership DBA Verizon Wireless
2004/05/07
(240) 672-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/08/05
(240) 672-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/04/06
(240) 672-5
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(240) 672-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(240) 672-7
Wireless
Cellco Partnership DBA Verizon Wireless
2004/11/02
(240) 672-8
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(240) 672-9
Landline
Local Access LLC - MD
2013/08/12
Landline
Bandwidth.com CLEC, LLC - MD
2019/05/17
(240) 673-0
Landline
Bandwidth.com CLEC, LLC - MD
2019/05/21
(240) 673-1
Landline
Bandwidth.com CLEC, LLC - MD
2019/05/21
(240) 673-2
Landline
Onvoy, LLC - MD
2020/03/31
(240) 673-3
Landline
Onvoy, LLC - MD
2020/03/31
(240) 673-4
Landline
Vonage America LLC
2020/05/08
(240) 673-5
Landline
Vonage America LLC
2020/05/08
(240) 673-6
Landline
Onvoy, LLC - MD
2020/08/25
(240) 673-7
Landline
Onvoy, LLC - MD
2020/08/25
(240) 673-9
Landline
Brightlink Communications, LLC
2020/09/08
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 676-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 676-1
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 676-2
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(240) 676-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(240) 676-4
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(240) 676-5
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(240) 676-6
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 676-7
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(240) 676-8
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 676-9
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Mcimetro Access Transmission Services LLC
2019/05/20
(240) 677-0
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-1
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-2
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-3
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-4
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-5
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-6
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-7
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-8
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
(240) 677-9
Landline
Mcimetro Access Transmission Services LLC
2019/05/21
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 678-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 678-1
Wireless
Sprint Spectrum, L.P.
2003/12/26
(240) 678-2
Wireless
Cellco Partnership DBA Verizon Wireless
2004/10/08
(240) 678-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/11/02
(240) 678-4
Wireless
Cellco Partnership DBA Verizon Wireless
2004/05/07
(240) 678-5
Wireless
Cellco Partnership DBA Verizon Wireless
2004/06/04
(240) 678-6
Wireless
Cellco Partnership DBA Verizon Wireless
2004/06/04
(240) 678-7
Wireless
Cellco Partnership DBA Verizon Wireless
2004/06/04
(240) 678-8
Wireless
Cellco Partnership DBA Verizon Wireless
2004/03/16
(240) 678-9
Wireless
Cellco Partnership DBA Verizon Wireless
2004/03/16
Landline
Verizon Maryland, Inc.
-
(240) 684-0
Landline
Level 3 Communications, LLC - AK
2010/07/27
(240) 684-1
Landline
Verizon Maryland, Inc.
-
(240) 684-2
Landline
Verizon Maryland, Inc.
-
(240) 684-3
Landline
Verizon Maryland, Inc.
-
(240) 684-4
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 684-5
Landline
Verizon Maryland, Inc.
-
(240) 684-6
Landline
Verizon Maryland, Inc.
-
(240) 684-7
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 684-8
Landline
Onvoy, LLC - MD
2015/05/28
(240) 684-9
Landline
Verizon Maryland, Inc.
-
(240) 687
Wireless
Cellco Partnership DBA Verizon Wireless
-
Wireless
Cellco Partnership DBA Verizon Wireless
2006/06/12
(240) 688-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/06/19
(240) 688-1
Wireless
Cellco Partnership DBA Verizon Wireless
2006/06/19
(240) 688-2
Wireless
Omnipoint Communications Cap Operations, LLC
2006/08/25
(240) 688-3
Wireless
Omnipoint Communications Cap Operations, LLC
2006/08/25
(240) 688-4
Wireless
Omnipoint Communications Cap Operations, LLC
2006/08/25
(240) 688-5
Wireless
Omnipoint Communications Cap Operations, LLC
2006/09/11
(240) 688-6
Wireless
Cellco Partnership DBA Verizon Wireless
2006/10/05
(240) 688-7
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/20
(240) 688-8
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/20
(240) 688-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/20
Landline
Csc Wireless, LLC
2019/05/28
(240) 689-0
Landline
Vonage America LLC
2020/05/08
(240) 689-1
Landline
Vonage America LLC
2020/05/08
(240) 689-2
Landline
Csc Wireless, LLC
2019/05/28
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 691-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 691-1
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 691-2
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/30
(240) 691-3
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/30
(240) 691-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 691-5
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 691-6
Wireless
Cellco Partnership DBA Verizon Wireless
2007/11/28
(240) 691-7
Wireless
Cellco Partnership DBA Verizon Wireless
2007/11/28
(240) 691-8
Wireless
Cellco Partnership DBA Verizon Wireless
2008/09/03
(240) 691-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/12/20
Landline
Verizon Maryland, Inc.
-
(240) 694-0
Landline
Verizon Maryland, Inc.
-
(240) 694-1
Landline
Verizon Maryland, Inc.
-
(240) 694-2
Landline
Verizon Maryland, Inc.
-
(240) 694-3
Landline
Verizon Maryland, Inc.
-
(240) 694-4
Landline
Verizon Maryland, Inc.
-
(240) 694-5
Wireless
Sprint Spectrum, L.P.
2005/11/02
(240) 694-6
Wireless
Sprint Spectrum, L.P.
2004/07/12
(240) 694-7
Wireless
Sprint Spectrum, L.P.
2004/07/12
(240) 694-8
Wireless
Sprint Spectrum, L.P.
2004/08/18
(240) 694-9
Wireless
Sprint Spectrum, L.P.
2004/08/18
Landline
Verizon Maryland, Inc.
-
(240) 695-0
Wireless
Cellco Partnership DBA Verizon Wireless
2015/08/07
(240) 695-1
Landline
Onvoy, LLC - MD
2017/05/09
(240) 695-2
Wireless
Cellco Partnership DBA Verizon Wireless
2009/01/05
(240) 695-3
Wireless
Cellco Partnership DBA Verizon Wireless
2009/08/05
(240) 695-4
Wireless
Cellco Partnership DBA Verizon Wireless
2010/02/04
(240) 695-5
Landline
Verizon Maryland, Inc.
-
(240) 695-6
Wireless
Cellco Partnership DBA Verizon Wireless
2011/01/04
(240) 695-7
Wireless
Cellco Partnership DBA Verizon Wireless
2011/03/03
(240) 695-8
Wireless
Cellco Partnership DBA Verizon Wireless
2011/06/15
(240) 695-9
Landline
Peerless Network of Maryland, LLC
2020/03/23
Landline
Level 3 Communications, LLC - AK
-
(240) 696-0
Landline
Level 3 Communications, LLC - AK
2006/03/13
(240) 696-1
Landline
Level 3 Communications, LLC - AK
2006/03/13
(240) 696-2
Landline
Level 3 Communications, LLC - AK
2007/04/19
(240) 696-3
Landline
Level 3 Communications, LLC - AK
2011/02/03
(240) 696-4
Landline
Level 3 Communications, LLC - AK
-
(240) 696-5
Landline
Comcast IP Phone, LLC
2014/04/04
(240) 696-6
Landline
Level 3 Communications, LLC - AK
2005/03/08
(240) 696-7
Landline
Level 3 Communications, LLC - AK
2005/03/08
(240) 696-8
Landline
Level 3 Communications, LLC - AK
2005/03/08
(240) 696-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/01/14
Prefix
Type
Location
Carrier
Assigned
Wireless
New Cingular Wireless PCS, LLC
2009/03/25
(240) 701-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 701-1
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 701-2
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 701-3
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 701-4
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 701-5
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 701-6
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 701-7
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 701-8
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 701-9
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
Wireless
New Cingular Wireless PCS, LLC
2009/03/25
(240) 704-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 704-1
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 704-2
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 704-3
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 704-4
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 704-5
Wireless
New Cingular Wireless PCS, LLC
2010/02/04
(240) 704-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 704-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(240) 704-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(240) 704-9
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/24
Wireless
New Cingular Wireless PCS, LLC
2009/03/25
(240) 705-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 705-1
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 705-2
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 705-3
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 705-4
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 705-5
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 705-6
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 705-7
Landline
Xo Maryland, LLC
2010/07/26
(240) 705-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 705-9
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
Wireless
New Cingular Wireless PCS, LLC
2009/03/26
(240) 706-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 706-1
Wireless
New Cingular Wireless PCS, LLC
2009/03/27
(240) 706-2
Wireless
New Cingular Wireless PCS, LLC
2010/01/05
(240) 706-3
Wireless
New Cingular Wireless PCS, LLC
2010/01/05
(240) 706-4
Wireless
New Cingular Wireless PCS, LLC
2010/01/05
(240) 706-5
Wireless
New Cingular Wireless PCS, LLC
2010/01/05
(240) 706-6
Wireless
New Cingular Wireless PCS, LLC
2010/01/05
(240) 706-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/22
(240) 706-8
Landline
Ymax Communications Corp. - MD
2010/11/17
(240) 706-9
Landline
Ymax Communications Corp. - MD
2010/11/17
Wireless
Omnipoint Communications Cap Operations, LLC
2015/02/20
(240) 714-0
Wireless
Omnipoint Communications Cap Operations, LLC
2015/11/24
(240) 714-1
Wireless
Omnipoint Communications Cap Operations, LLC
2015/11/24
(240) 714-2
Wireless
Omnipoint Communications Cap Operations, LLC
2015/11/24
(240) 714-3
Landline
Comcast IP Phone, LLC
2015/10/20
(240) 714-4
Landline
Comcast IP Phone, LLC
2015/07/14
(240) 714-5
Landline
Comcast IP Phone, LLC
2016/02/08
(240) 714-6
Wireless
Omnipoint Communications Cap Operations, LLC
2015/07/15
(240) 714-7
Wireless
Omnipoint Communications Cap Operations, LLC
2015/07/15
(240) 714-8
Wireless
Omnipoint Communications Cap Operations, LLC
2015/02/23
(240) 714-9
Wireless
Omnipoint Communications Cap Operations, LLC
2015/02/23
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 715-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 715-1
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 715-2
Wireless
Omnipoint Communications Cap Operations, LLC
2006/02/01
(240) 715-3
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 715-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 715-5
Wireless
Omnipoint Communications Cap Operations, LLC
2006/02/01
(240) 715-6
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 715-7
Wireless
Omnipoint Communications Cap Operations, LLC
2006/04/11
(240) 715-8
Wireless
Omnipoint Communications Cap Operations, LLC
2006/06/14
(240) 715-9
Landline
Global Crossing Local Services, Inc. - KY
-
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/15
(240) 716-0
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
(240) 716-1
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
(240) 716-2
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(240) 716-3
Landline
Comcast IP Phone, LLC
2014/08/28
(240) 716-4
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(240) 716-5
Landline
Onvoy, LLC - MD
2014/10/09
(240) 716-6
Landline
Onvoy, LLC - MD
2014/10/09
(240) 716-7
Landline
Centurylink Communications, LLC LA
2014/03/05
(240) 716-8
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/15
(240) 716-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/15
Wireless
Cellco Partnership DBA Verizon Wireless
2016/04/11
(240) 719-0
Landline
Telnyx LLC
2017/03/02
(240) 719-1
Wireless
T-mobile USA, Inc.
2016/11/18
(240) 719-2
Landline
Comcast IP Phone, LLC
2016/06/23
(240) 719-3
Landline
Comcast IP Phone, LLC
2016/11/22
(240) 719-4
Landline
Mcimetro Access Transmission Services LLC
2017/06/22
(240) 719-5
Landline
Onvoy, LLC - MD
2017/12/21
(240) 719-6
Landline
Onvoy, LLC - MD
2017/12/21
(240) 719-7
Landline
Comcast IP Phone, LLC
2017/03/21
(240) 719-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/11/09
(240) 719-9
Wireless
Cellco Partnership DBA Verizon Wireless
2016/04/11
Landline
Verizon Maryland, Inc.
2020/03/19
(240) 721-0
Wireless
Cellco Partnership DBA Verizon Wireless
2020/04/21
(240) 721-1
Landline
Verizon Maryland, Inc.
2020/03/20
(240) 721-2
Landline
Verizon Maryland, Inc.
2020/03/20
(240) 721-3
Landline
Verizon Maryland, Inc.
2020/03/20
(240) 721-4
Landline
Verizon Maryland, Inc.
2020/03/20
(240) 721-5
Landline
Verizon Maryland, Inc.
2020/03/20
(240) 721-6
Landline
Verizon Maryland, Inc.
2020/03/20
(240) 721-7
Landline
Commio, LLC
2021/08/05
(240) 721-8
Wireless
Cellco Partnership DBA Verizon Wireless
2020/04/27
(240) 721-9
Landline
Commio, LLC
2021/08/05
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 723-0
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(240) 723-1
Wireless
Sprint Spectrum, L.P.
2004/12/09
(240) 723-2
Wireless
Cellco Partnership DBA Verizon Wireless
2006/10/05
(240) 723-3
Wireless
Sprint Spectrum, L.P.
2005/03/02
(240) 723-4
Wireless
Sprint Spectrum, L.P.
2005/03/02
(240) 723-5
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(240) 723-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(240) 723-7
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(240) 723-8
Wireless
Sprint Spectrum, L.P.
2005/12/28
(240) 723-9
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
Landline
Cavalier East, LLC - MD
-
(240) 724-0
Landline
Cavalier East, LLC - MD
-
(240) 724-1
Landline
Level 3 Communications, LLC - AK
2004/12/01
(240) 724-2
Landline
Level 3 Communications, LLC - AK
2005/03/08
(240) 724-3
Landline
Cavalier East, LLC - MD
-
(240) 724-4
Landline
Level 3 Communications, LLC - AK
2002/12/23
(240) 724-5
Landline
Cavalier East, LLC - MD
-
(240) 724-6
Landline
Level 3 Communications, LLC - AK
2005/03/08
(240) 724-7
Landline
Level 3 Communications, LLC - AK
2006/04/07
(240) 724-8
Landline
Onvoy, LLC - MD
2012/09/12
(240) 724-9
Landline
Cavalier East, LLC - MD
-
Landline
Brightlink Communications, LLC
2020/09/01
(240) 726-0
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/28
(240) 726-1
Landline
Brightlink Communications, LLC
2020/09/04
(240) 726-2
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/28
(240) 726-3
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/28
(240) 726-4
Wireless
Cellco Partnership DBA Verizon Wireless
2021/07/20
(240) 726-5
Wireless
Cellco Partnership DBA Verizon Wireless
2021/07/20
(240) 726-6
Wireless
Cellco Partnership DBA Verizon Wireless
2021/07/20
(240) 726-7
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 726-8
Wireless
Omnipoint Communications Cap Operations, LLC
2021/05/04
(240) 726-9
Wireless
Omnipoint Communications Cap Operations, LLC
2021/05/04
Landline
Vonage America LLC
2020/05/12
(240) 728-0
Landline
Vonage America LLC
2020/05/13
(240) 728-1
Wireless
Omnipoint Communications Cap Operations, LLC
2020/12/04
(240) 728-2
Landline
Onvoy, LLC - MD
2020/09/17
(240) 728-3
Wireless
Omnipoint Communications Cap Operations, LLC
2020/12/04
(240) 728-4
Wireless
Omnipoint Communications Cap Operations, LLC
2020/12/04
(240) 728-5
Landline
Vonage America LLC
2020/05/13
(240) 728-6
Wireless
Omnipoint Communications Cap Operations, LLC
2020/12/04
(240) 728-7
Landline
Onvoy, LLC - MD
2020/09/17
(240) 728-8
Wireless
Omnipoint Communications Cap Operations, LLC
2020/08/27
(240) 728-9
Wireless
Omnipoint Communications Cap Operations, LLC
2020/08/27
(240) 731
Wireless
New Cingular Wireless PCS, LLC
-
(240) 737
Landline
Cavalier East, LLC - MD
2001/05/09
Unknown
Atlantech Online, Inc. - MD
2015/09/03
(240) 740-0
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-1
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-2
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-3
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-4
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-5
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-6
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-7
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-8
Unknown
Atlantech Online, Inc. - MD
2015/09/08
(240) 740-9
Unknown
Atlantech Online, Inc. - MD
2015/09/08
Landline
Brightlink Communications, LLC
2020/11/20
(240) 742-1
Landline
Brightlink Communications, LLC
2020/11/23
(240) 742-2
Landline
Onvoy, LLC - MD
2021/02/03
(240) 742-3
Landline
Onvoy, LLC - MD
2021/06/16
(240) 742-4
Landline
Radiantiq LLC
2021/03/23
(240) 742-6
Wireless
Onvoy Spectrum, LLC
2021/04/24
(240) 742-7
Landline
Twilio International, Inc.
2020/11/25
Landline
Local Access LLC - MD
2006/11/16
(240) 743-0
Wireless
Omnipoint Communications Cap Operations, LLC
2015/07/10
(240) 743-1
Wireless
Cellco Partnership DBA Verizon Wireless
2014/04/23
(240) 743-2
Landline
Level 3 Communications, LLC - AK
2014/04/17
(240) 743-3
Landline
Level 3 Communications, LLC - AK
2007/08/10
(240) 743-4
Landline
Comcast IP Phone, LLC
2007/09/10
(240) 743-5
Landline
Local Access LLC - MD
2007/08/17
(240) 743-6
Wireless
Omnipoint Communications Cap Operations, LLC
2007/09/13
(240) 743-7
Wireless
Cellco Partnership DBA Verizon Wireless
2007/08/30
(240) 743-8
Wireless
Cellco Partnership DBA Verizon Wireless
2007/08/30
(240) 743-9
Wireless
Cellco Partnership DBA Verizon Wireless
2007/08/30
Landline
Level 3 Communications, LLC - AK
-
(240) 744-0
Landline
Level 3 Communications, LLC - AK
-
(240) 744-1
Landline
Level 3 Communications, LLC - AK
-
(240) 744-2
Wireless
Sprint Spectrum, L.P.
2005/06/02
(240) 744-3
Landline
Level 3 Communications, LLC - AK
-
(240) 744-4
Landline
Level 3 Communications, LLC - AK
-
(240) 744-5
Landline
Level 3 Communications, LLC - AK
-
(240) 744-6
Wireless
Sprint Spectrum, L.P.
2005/11/02
(240) 744-7
Landline
Level 3 Communications, LLC - AK
-
(240) 744-8
Landline
Terra Nova Telecom Inc.
2021/05/13
Landline
Cavalier East, LLC - MD
2001/05/09
(240) 747-0
Landline
Cavalier East, LLC - MD
-
(240) 747-1
Landline
Cavalier East, LLC - MD
-
(240) 747-2
Landline
Cavalier East, LLC - MD
-
(240) 747-3
Landline
Cavalier East, LLC - MD
-
(240) 747-4
Landline
Cavalier East, LLC - MD
-
(240) 747-5
Landline
Cavalier East, LLC - MD
-
(240) 747-6
Landline
Cavalier East, LLC - MD
-
(240) 747-7
Landline
Level 3 Communications, LLC - AK
2007/06/21
(240) 747-8
Landline
Onvoy, LLC - MD
2020/06/04
(240) 747-9
Landline
Cavalier East, LLC - MD
-
Landline
Teleport Communications America - ID - LLC
2020/12/23
(240) 748-2
Landline
Teleport Communications America - ID - LLC
2020/12/28
(240) 748-3
Landline
Teleport Communications America - ID - LLC
2020/12/28
(240) 748-4
Landline
Teleport Communications America - ID - LLC
2020/12/28
(240) 748-5
Landline
Teleport Communications America - ID - LLC
2020/12/28
(240) 748-6
Landline
Teleport Communications America - ID - LLC
2020/12/28
(240) 748-7
Wireless
Onvoy Spectrum, LLC
2021/04/21
Landline
Level 3 Communications, LLC - AK
-
(240) 752-0
Landline
Level 3 Communications, LLC - AK
-
(240) 752-1
Landline
Paetec Communications, Inc. - CA
2006/04/14
(240) 752-2
Wireless
Sprint Spectrum, L.P.
2005/01/26
(240) 752-3
Wireless
Sprint Spectrum, L.P.
2005/02/14
(240) 752-4
Wireless
Sprint Spectrum, L.P.
2005/02/14
(240) 752-5
Wireless
Sprint Spectrum, L.P.
2005/07/18
(240) 752-6
Landline
Level 3 Communications, LLC - AK
2006/02/23
(240) 752-7
Landline
Level 3 Communications, LLC - AK
2006/02/23
(240) 752-8
Landline
Level 3 Communications, LLC - AK
2008/01/30
(240) 752-9
Landline
Level 3 Communications, LLC - AK
2006/08/31
Landline
Level 3 Communications, LLC - AK
-
(240) 753-0
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(240) 753-1
Landline
Level 3 Communications, LLC - AK
-
(240) 753-2
Wireless
Cellco Partnership DBA Verizon Wireless
2006/06/02
(240) 753-3
Wireless
Cellco Partnership DBA Verizon Wireless
2006/06/02
(240) 753-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/06/02
(240) 753-5
Wireless
New Cingular Wireless PCS, LLC
2006/07/21
(240) 753-6
Landline
Level 3 Communications, LLC - AK
2013/02/13
(240) 753-7
Landline
Level 3 Communications, LLC - AK
2013/04/17
(240) 753-8
Wireless
New Cingular Wireless PCS, LLC
2006/07/21
(240) 753-9
Wireless
Cellco Partnership DBA Verizon Wireless
2013/04/23
Wireless
Omnipoint Communications Cap Operations, LLC
2021/02/10
(240) 756-0
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 756-1
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 756-2
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 756-3
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 756-4
Wireless
Omnipoint Communications Cap Operations, LLC
2021/02/11
(240) 756-5
Wireless
Omnipoint Communications Cap Operations, LLC
2021/02/11
(240) 756-6
Wireless
Omnipoint Communications Cap Operations, LLC
2021/02/11
(240) 756-7
Wireless
Omnipoint Communications Cap Operations, LLC
2021/02/11
(240) 756-8
Wireless
Omnipoint Communications Cap Operations, LLC
2021/02/11
(240) 756-9
Wireless
Omnipoint Communications Cap Operations, LLC
2021/02/11
Landline
Peerless Network of Maryland, LLC
-
(240) 757-1
Landline
Onvoy, LLC - MD
2021/01/19
(240) 757-2
Landline
Onvoy, LLC - MD
2021/01/19
(240) 757-3
Landline
Peerless Network of Maryland, LLC
-
(240) 757-7
Landline
Terra Nova Telecom Inc.
2020/12/28
(240) 757-9
Landline
Peerless Network of Maryland, LLC
-
Landline
Radiantiq LLC
2021/03/25
(240) 759-2
Landline
Radiantiq LLC
2021/03/26
(240) 759-7
Wireless
Onvoy Spectrum, LLC
2021/04/24
Wireless
Cellco Partnership DBA Verizon Wireless
2015/09/22
(240) 760-0
Wireless
Cellco Partnership DBA Verizon Wireless
2015/09/23
(240) 760-1
Landline
Onvoy, LLC - MD
2016/02/17
(240) 760-2
Landline
Onvoy, LLC - MD
2016/02/17
(240) 760-3
Landline
Mcimetro Access Transmission Services LLC
2015/12/02
(240) 760-4
Landline
Mcimetro Access Transmission Services LLC
2015/12/02
(240) 760-5
Landline
Mcimetro Access Transmission Services LLC
2015/12/02
(240) 760-6
Landline
Mcimetro Access Transmission Services LLC
2016/03/29
(240) 760-7
Landline
Mcimetro Access Transmission Services LLC
2016/03/29
(240) 760-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(240) 760-9
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
Wireless
Cellco Partnership DBA Verizon Wireless
2012/08/22
(240) 762-0
Wireless
Cellco Partnership DBA Verizon Wireless
2012/08/22
(240) 762-1
Wireless
Cellco Partnership DBA Verizon Wireless
2012/08/22
(240) 762-2
Wireless
Cellco Partnership DBA Verizon Wireless
2014/04/23
(240) 762-3
Wireless
Cellco Partnership DBA Verizon Wireless
2015/03/26
(240) 762-4
Landline
Level 3 Communications, LLC - AK
2014/06/24
(240) 762-5
Landline
Paetec Communications, Inc. - CA
2013/08/22
(240) 762-6
Landline
Level 3 Communications, LLC - AK
2014/06/10
(240) 762-7
Landline
Teleport Communications America - ID - LLC
2013/04/11
(240) 762-8
Wireless
Cellco Partnership DBA Verizon Wireless
2013/03/28
(240) 762-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/02/26
Landline
Bandwidth.com CLEC, LLC - MD
2015/10/01
(240) 763-0
Landline
Bandwidth.com CLEC, LLC - MD
2015/10/02
(240) 763-1
Landline
Onvoy, LLC - MD
2016/03/29
(240) 763-2
Landline
Onvoy, LLC - MD
2016/03/29
(240) 763-3
Landline
Onvoy, LLC - MD
2016/02/29
(240) 763-4
Landline
Onvoy, LLC - MD
2016/02/29
(240) 763-5
Landline
Peerless Network of Maryland, LLC
2019/02/06
(240) 763-6
Landline
Peerless Network of Maryland, LLC
2019/05/22
(240) 763-7
Landline
Onvoy, LLC - MD
2019/02/06
(240) 763-8
Landline
Onvoy, LLC - MD
2019/02/06
(240) 763-9
Landline
Telnyx LLC
2017/04/14
Landline
Xo Maryland, LLC
-
(240) 764-0
Landline
Xo Maryland, LLC
-
(240) 764-1
Landline
Xo Maryland, LLC
-
(240) 764-2
Landline
Xo Maryland, LLC
2005/07/20
(240) 764-3
Landline
Xo Maryland, LLC
2005/07/20
(240) 764-4
Landline
Level 3 Communications, LLC - AK
2002/12/23
(240) 764-5
Landline
Comcast IP Phone, LLC
2007/09/07
(240) 764-6
Landline
Comcast IP Phone, LLC
2007/09/07
(240) 764-7
Landline
Comcast IP Phone, LLC
2007/09/07
(240) 764-8
Landline
Comcast IP Phone, LLC
2007/09/07
(240) 764-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/04/23
Landline
Xo Maryland, LLC
-
(240) 765-0
Landline
Xo Maryland, LLC
-
(240) 765-1
Landline
Xo Maryland, LLC
-
(240) 765-2
Wireless
Sprint Spectrum, L.P.
2004/01/27
(240) 765-3
Landline
Core Communications, Inc.- MD
2019/03/15
(240) 765-4
Wireless
Omnipoint Communications Cap Operations, LLC
2007/10/16
(240) 765-5
Wireless
Sprint Spectrum, L.P.
2004/08/18
(240) 765-6
Landline
Xo Maryland, LLC
-
(240) 765-7
Landline
Ymax Communications Corp. - MD
2008/09/24
(240) 765-8
Wireless
Sprint Spectrum, L.P.
2005/01/26
(240) 765-9
Wireless
Sprint Spectrum, L.P.
2005/01/26
Landline
Xo Maryland, LLC
-
(240) 766-0
Landline
Xo Maryland, LLC
-
(240) 766-1
Landline
Xo Maryland, LLC
-
(240) 766-2
Landline
Comcast IP Phone, LLC
2014/01/21
(240) 766-3
Landline
Xo Maryland, LLC
-
(240) 766-4
Landline
Comcast IP Phone, LLC
2014/08/21
(240) 766-5
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(240) 766-6
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/27
(240) 766-7
Landline
Bandwidth.com CLEC, LLC - MD
2007/08/17
(240) 766-8
Landline
Level 3 Communications, LLC - AK
2008/02/18
(240) 766-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/27
Landline
Cavalier East, LLC - MD
2001/05/09
(240) 767-0
Landline
Cavalier East, LLC - MD
-
(240) 767-1
Landline
Cavalier East, LLC - MD
-
(240) 767-2
Landline
Cavalier East, LLC - MD
-
(240) 767-3
Landline
Cavalier East, LLC - MD
-
(240) 767-4
Landline
Level 3 Communications, LLC - AK
2008/02/01
(240) 767-5
Landline
Cavalier East, LLC - MD
-
(240) 767-6
Landline
Level 3 Communications, LLC - AK
2008/02/01
(240) 767-7
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(240) 767-8
Landline
Commio, LLC
2021/08/05
(240) 767-9
Landline
Cavalier East, LLC - MD
-
Landline
Comcast IP Phone, LLC
2004/11/22
(240) 770-0
Landline
Level 3 Communications, LLC - AK
2008/02/01
(240) 770-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/11/03
(240) 770-2
Landline
Level 3 Communications, LLC - AK
2008/02/01
(240) 770-3
Landline
Comcast IP Phone, LLC
2008/03/27
(240) 770-4
Landline
Comcast IP Phone, LLC
2008/03/27
(240) 770-5
Landline
Comcast IP Phone, LLC
2008/03/27
(240) 770-6
Landline
Comcast IP Phone, LLC
2006/11/16
(240) 770-7
Landline
Comcast IP Phone, LLC
2006/11/16
(240) 770-8
Landline
Comcast IP Phone, LLC
2006/11/16
(240) 770-9
Landline
Bandwidth.com CLEC, LLC - MD
2010/11/03
(240) 773
Landline
Verizon Maryland, Inc.
-
(240) 777
Landline
Verizon Maryland, Inc.
-
Landline
Xo Maryland, LLC
-
(240) 778-0
Landline
Xo Maryland, LLC
-
(240) 778-1
Landline
Xo Maryland, LLC
-
(240) 778-2
Landline
Xo Maryland, LLC
-
(240) 778-3
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
(240) 778-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
(240) 778-5
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
(240) 778-6
Landline
Cbeyond Comm, LLC MD
2008/05/21
(240) 778-7
Wireless
Omnipoint Communications Cap Operations, LLC
2008/06/17
(240) 778-8
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
(240) 778-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
Landline
Mcimetro Access Transmission Services LLC
2015/08/18
(240) 781-0
Landline
Mcimetro Access Transmission Services LLC
2015/12/02
(240) 781-1
Landline
Mcimetro Access Transmission Services LLC
2015/12/02
(240) 781-2
Landline
Mcimetro Access Transmission Services LLC
2015/12/02
(240) 781-3
Landline
Mcimetro Access Transmission Services LLC
2015/08/19
(240) 781-4
Landline
Mcimetro Access Transmission Services LLC
2015/10/28
(240) 781-5
Landline
Mcimetro Access Transmission Services LLC
2015/10/28
(240) 781-6
Landline
Onvoy, LLC - MD
2017/05/11
(240) 781-7
Landline
Centurylink Communications, LLC LA
2016/03/02
(240) 781-8
Wireless
Omnipoint Communications Cap Operations, LLC
2015/10/28
(240) 781-9
Wireless
Omnipoint Communications Cap Operations, LLC
2015/10/28
(240) 783
Wireless
Mte, Inc. DBA Mte Paging Network
-
Landline
Level 3 Communications, LLC - AK
-
(240) 788-0
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 788-1
Wireless
Omnipoint Communications Cap Operations, LLC
2021/07/14
(240) 788-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 788-3
Landline
Level 3 Communications, LLC - AK
-
(240) 788-4
Landline
Level 3 Communications, LLC - AK
2012/04/13
(240) 788-5
Wireless
Omnipoint Communications Cap Operations, LLC
2021/07/14
(240) 788-6
Landline
Comcast IP Phone, LLC
2008/01/22
(240) 788-7
Landline
Comcast IP Phone, LLC
2008/01/22
(240) 788-8
Landline
Terra Nova Telecom Inc.
2021/06/24
(240) 788-9
Landline
Commio, LLC
2021/08/05
Landline
Level 3 Communications, LLC - AK
-
(240) 790-0
Landline
Level 3 Communications, LLC - AK
-
(240) 790-1
Landline
Level 3 Communications, LLC - AK
-
(240) 790-2
Wireless
T-mobile USA, Inc.
2016/06/30
(240) 790-3
Landline
Level 3 Communications, LLC - AK
-
(240) 790-4
Wireless
T-mobile USA, Inc.
2020/03/09
(240) 790-6
Wireless
T-mobile USA, Inc.
2016/09/02
(240) 790-7
Landline
Level 3 Communications, LLC - AK
-
(240) 790-8
Landline
Comcast IP Phone, LLC
2017/03/20
(240) 790-9
Landline
Level 3 Communications, LLC - AK
-
Prefix
Type
Location
Carrier
Assigned
Landline
Core Communications, Inc.- MD
2012/06/22
(240) 800-0
Landline
Core Communications, Inc.- MD
2012/06/27
(240) 800-1
Landline
Onvoy, LLC - MD
2015/07/15
(240) 800-2
Landline
Xo Maryland, LLC
2012/07/18
(240) 800-3
Landline
Comcast IP Phone, LLC
2014/05/29
(240) 800-4
Landline
Comcast IP Phone, LLC
2012/08/23
(240) 800-5
Landline
Paetec Communications, Inc. - CA
2014/07/31
(240) 800-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/06/08
(240) 800-7
Landline
Bandwidth.com CLEC, LLC - MD
2015/06/08
(240) 800-8
Landline
Core Communications, Inc.- MD
2012/06/27
(240) 800-9
Landline
Local Access LLC - MD
2013/08/12
Wireless
Brightlink Communications, LLC
2013/05/10
(240) 802-0
Wireless
Cellco Partnership DBA Verizon Wireless
2015/06/22
(240) 802-1
Wireless
Brightlink Communications, LLC
2013/05/15
(240) 802-2
Landline
Comcast IP Phone, LLC
2015/06/08
(240) 802-3
Landline
Level 3 Telecom of Maryland, LLC - MD
2016/02/12
(240) 802-4
Landline
Level 3 Telecom of Maryland, LLC - MD
2015/02/20
(240) 802-5
Landline
Mcimetro Access Transmission Services LLC
2017/08/15
(240) 802-6
Wireless
Cellco Partnership DBA Verizon Wireless
2015/03/26
(240) 802-7
Landline
Onvoy, LLC - MD
2014/10/09
(240) 802-8
Landline
Onvoy, LLC - MD
2014/10/09
(240) 802-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
Wireless
Omnipoint Communications Cap Operations, LLC
2016/04/05
(240) 810-0
Landline
Local Access LLC - MD
2016/05/03
(240) 810-1
Landline
Local Access LLC - MD
2016/05/03
(240) 810-2
Wireless
Cellco Partnership DBA Verizon Wireless
2016/05/05
(240) 810-3
Wireless
Omnipoint Communications Cap Operations, LLC
2016/06/16
(240) 810-4
Wireless
Omnipoint Communications Cap Operations, LLC
2016/08/04
(240) 810-5
Wireless
Omnipoint Communications Cap Operations, LLC
2020/07/28
(240) 810-6
Wireless
Omnipoint Communications Cap Operations, LLC
2016/08/04
(240) 810-7
Wireless
Omnipoint Communications Cap Operations, LLC
2016/08/04
(240) 810-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/04/06
(240) 810-9
Wireless
Omnipoint Communications Cap Operations, LLC
2016/04/06
Landline
Lightwave Communications, LLC - MD
2005/05/27
(240) 821-0
Wireless
Omnipoint Communications Cap Operations, LLC
2005/08/17
(240) 821-1
Landline
Lightwave Communications, LLC - MD
2005/06/01
(240) 821-2
Wireless
Omnipoint Communications Cap Operations, LLC
2005/08/26
(240) 821-3
Wireless
Omnipoint Communications Cap Operations, LLC
2005/09/12
(240) 821-4
Wireless
Omnipoint Communications Cap Operations, LLC
2005/10/10
(240) 821-5
Landline
Level 3 Communications, LLC - AK
2005/12/29
(240) 821-6
Landline
Level 3 Communications, LLC - AK
2005/12/29
(240) 821-7
Wireless
Sprint Spectrum, L.P.
2006/01/13
(240) 821-8
Wireless
Sprint Spectrum, L.P.
2005/08/23
(240) 821-9
Landline
Lightwave Communications, LLC - MD
2006/02/24
Wireless
Cellco Partnership DBA Verizon Wireless
2016/03/17
(240) 825-0
Landline
Onvoy, LLC - MD
2016/03/29
(240) 825-1
Landline
Onvoy, LLC - MD
2016/03/29
(240) 825-2
Landline
Onvoy, LLC - MD
2016/03/29
(240) 825-3
Landline
Comcast IP Phone, LLC
2016/08/19
(240) 825-4
Landline
Comcast IP Phone, LLC
2016/05/04
(240) 825-5
Wireless
Cellco Partnership DBA Verizon Wireless
2017/02/09
(240) 825-6
Wireless
Omnipoint Communications Cap Operations, LLC
2016/04/01
(240) 825-7
Wireless
Omnipoint Communications Cap Operations, LLC
2016/04/01
(240) 825-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/04/01
(240) 825-9
Wireless
Cellco Partnership DBA Verizon Wireless
2016/03/17
Landline
Verizon Maryland, Inc.
2007/05/07
(240) 826-0
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-1
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-2
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-3
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-4
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-5
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-6
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-7
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-8
Landline
Verizon Maryland, Inc.
2007/05/10
(240) 826-9
Landline
Verizon Maryland, Inc.
2007/05/10
Landline
Telnyx LLC
-
(240) 828-0
Wireless
Omnipoint Communications Cap Operations, LLC
2019/08/14
(240) 828-1
Landline
Telnyx LLC
2017/03/02
(240) 828-2
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 828-3
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 828-4
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 828-5
Landline
Comcast IP Phone, LLC
2018/05/24
(240) 828-6
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 828-7
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 828-8
Landline
Comcast IP Phone, LLC
2017/02/21
(240) 828-9
Wireless
Omnipoint Communications Cap Operations, LLC
2019/08/14
Landline
Comcast IP Phone, LLC
2015/11/10
(240) 830-0
Landline
Onvoy, LLC - MD
2016/01/25
(240) 830-1
Landline
Onvoy, LLC - MD
2016/02/17
(240) 830-2
Landline
Comcast IP Phone, LLC
2015/11/16
(240) 830-3
Landline
Onvoy, LLC - MD
2016/03/29
(240) 830-4
Landline
Onvoy, LLC - MD
2016/03/29
(240) 830-5
Landline
Onvoy, LLC - MD
2016/03/29
(240) 830-6
Landline
Local Access LLC - MD
2016/05/03
(240) 830-7
Landline
Onvoy, LLC - MD
2016/02/17
(240) 830-8
Landline
Onvoy, LLC - MD
2016/02/17
(240) 830-9
Landline
Local Access LLC - MD
2016/05/03
Wireless
Sprint Spectrum, L.P.
-
(240) 832-0
Wireless
Sprint Spectrum, L.P.
-
(240) 832-1
Wireless
Sprint Spectrum, L.P.
-
(240) 832-2
Wireless
Sprint Spectrum, L.P.
-
(240) 832-3
Wireless
Sprint Spectrum, L.P.
-
(240) 832-4
Wireless
Sprint Spectrum, L.P.
-
(240) 832-5
Wireless
Sprint Spectrum, L.P.
-
(240) 832-6
Wireless
Sprint Spectrum, L.P.
-
(240) 832-7
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 832-8
Wireless
Sprint Spectrum, L.P.
2002/10/31
(240) 832-9
Wireless
Sprint Spectrum, L.P.
2002/10/31
Landline
Xo Maryland, LLC
-
(240) 833-0
Landline
Xo Maryland, LLC
-
(240) 833-1
Landline
Xo Maryland, LLC
-
(240) 833-2
Landline
Comcast IP Phone, LLC
2014/04/02
(240) 833-3
Landline
Comcast IP Phone, LLC
2014/03/25
(240) 833-4
Landline
Xo Maryland, LLC
-
(240) 833-5
Landline
Onvoy, LLC - MD
2016/01/26
(240) 833-6
Landline
Core Communications, Inc.- MD
2018/10/12
(240) 833-7
Landline
Onvoy, LLC - MD
2016/01/26
(240) 833-8
Landline
Comcast IP Phone, LLC
2002/02/27
(240) 833-9
Landline
Core Communications, Inc.- MD
2018/10/12
Wireless
Omnipoint Communications Cap Operations, LLC
2001/03/12
(240) 838-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 838-1
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 838-2
Wireless
Omnipoint Communications Cap Operations, LLC
2007/03/12
(240) 838-3
Landline
Comcast IP Phone, LLC
2006/11/29
(240) 838-4
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 838-5
Landline
Comcast IP Phone, LLC
2006/11/29
(240) 838-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 838-7
Landline
Comcast IP Phone, LLC
2006/11/29
(240) 838-8
Wireless
Omnipoint Communications Cap Operations, LLC
2007/07/18
(240) 838-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
Wireless
Cellco Partnership DBA Verizon Wireless
2007/01/13
(240) 839-0
Wireless
Cellco Partnership DBA Verizon Wireless
2007/01/19
(240) 839-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/28
(240) 839-2
Wireless
New Cingular Wireless PCS, LLC
2011/02/17
(240) 839-3
Landline
Broadview Networks, Inc. - DC
2014/08/07
(240) 839-4
Landline
Level 3 Communications, LLC - AK
2010/05/28
(240) 839-5
Landline
Cbeyond Comm, LLC MD
2008/05/29
(240) 839-6
Landline
Level 3 Communications, LLC - AK
2014/04/02
(240) 839-7
Landline
Comcast IP Phone, LLC
2007/07/20
(240) 839-8
Wireless
Omnipoint Communications Cap Operations, LLC
2007/10/17
(240) 839-9
Landline
Peerless Network of Maryland, LLC
2013/09/20
Landline
Xo Maryland, LLC
-
(240) 842-0
Landline
Xo Maryland, LLC
-
(240) 842-1
Landline
Xo Maryland, LLC
-
(240) 842-2
Landline
Core Communications, Inc.- MD
2019/04/12
(240) 842-3
Landline
Bandwidth.com CLEC, LLC - MD
2011/11/09
(240) 842-4
Landline
Core Communications, Inc.- MD
2019/04/12
(240) 842-5
Landline
Core Communications, Inc.- MD
2012/08/02
(240) 842-6
Landline
Us Lec of Maryland, Inc.
2016/11/09
(240) 842-7
Landline
Core Communications, Inc.- MD
2019/04/12
(240) 842-8
Landline
Telnyx LLC
2017/04/14
(240) 842-9
Landline
Xo Maryland, LLC
-
Landline
Xo Maryland, LLC
-
(240) 843-0
Landline
Radiantiq LLC
2021/03/23
(240) 843-1
Landline
Onvoy, LLC - MD
2021/06/16
(240) 843-2
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 843-3
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 843-4
Landline
Xo Maryland, LLC
-
(240) 843-5
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 843-6
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 843-7
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 843-8
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 843-9
Landline
Core Communications, Inc.- MD
2019/04/15
Landline
Xo Maryland, LLC
-
(240) 845-0
Landline
Xo Maryland, LLC
-
(240) 845-1
Landline
Xo Maryland, LLC
-
(240) 845-2
Landline
Local Access LLC - MD
2016/09/15
(240) 845-3
Landline
Local Access LLC - MD
2016/09/15
(240) 845-4
Wireless
T-mobile USA, Inc.
2017/07/26
(240) 845-5
Landline
Xo Maryland, LLC
-
(240) 845-6
Wireless
T-mobile USA, Inc.
2018/06/07
(240) 845-7
Landline
Peerless Network of Maryland, LLC
2017/07/17
(240) 845-8
Landline
Telnyx LLC
2017/04/17
(240) 845-9
Landline
Core Communications, Inc.- MD
2018/10/11
Landline
Xo Maryland, LLC
-
(240) 846-0
Landline
Xo Maryland, LLC
-
(240) 846-1
Landline
Xo Maryland, LLC
-
(240) 846-2
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 846-3
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/13
(240) 846-4
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 846-5
Landline
Comcast IP Phone, LLC
2018/09/05
(240) 846-6
Landline
Xo Maryland, LLC
-
(240) 846-7
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 846-8
Landline
Local Access LLC - MD
2016/05/02
(240) 846-9
Landline
Core Communications, Inc.- MD
2019/04/15
Landline
Onvoy, LLC - MD
2015/12/09
(240) 847-0
Landline
Onvoy, LLC - MD
2015/12/11
(240) 847-1
Landline
Onvoy, LLC - MD
2015/12/11
(240) 847-2
Landline
Onvoy, LLC - MD
2016/01/27
(240) 847-3
Landline
Onvoy, LLC - MD
2016/01/27
(240) 847-4
Landline
Bandwidth.com CLEC, LLC - MD
2016/08/09
(240) 847-5
Landline
Onvoy, LLC - MD
2016/09/02
(240) 847-6
Landline
Onvoy, LLC - MD
2016/09/02
(240) 847-7
Landline
Comcast IP Phone, LLC
2016/02/16
(240) 847-8
Landline
Teleport Communications America - ID - LLC
2016/05/16
(240) 847-9
Landline
Local Access LLC - MD
2016/05/03
Wireless
Sprint Spectrum, L.P.
2006/10/09
(240) 855-0
Landline
Level 3 Communications, LLC - AK
2008/01/22
(240) 855-1
Wireless
Sprint Spectrum, L.P.
2007/02/15
(240) 855-2
Wireless
Sprint Spectrum, L.P.
2007/02/15
(240) 855-3
Wireless
Sprint Spectrum, L.P.
2007/02/15
(240) 855-4
Wireless
Sprint Spectrum, L.P.
2007/02/15
(240) 855-5
Wireless
Sprint Spectrum, L.P.
2007/02/15
(240) 855-6
Wireless
Sprint Spectrum, L.P.
2006/10/16
(240) 855-7
Wireless
Sprint Spectrum, L.P.
2006/10/16
(240) 855-8
Wireless
Sprint Spectrum, L.P.
2006/10/16
(240) 855-9
Wireless
Sprint Spectrum, L.P.
2006/10/16
(240) 857
Landline
Level 3 Telecom of Maryland, LLC - MD
-
Wireless
Cellco Partnership DBA Verizon Wireless
2016/07/12
(240) 858-0
Landline
Onvoy, LLC - MD
2016/09/02
(240) 858-1
Landline
Onvoy, LLC - MD
2016/09/02
(240) 858-2
Wireless
Cellco Partnership DBA Verizon Wireless
2017/06/12
(240) 858-3
Landline
Mcimetro Access Transmission Services LLC
2017/08/15
(240) 858-4
Landline
Comcast IP Phone, LLC
2017/07/10
(240) 858-5
Landline
Peerless Network of Maryland, LLC
2020/01/27
(240) 858-6
Landline
Comcast IP Phone, LLC
2017/07/10
(240) 858-7
Landline
Mcimetro Access Transmission Services LLC
2017/08/15
(240) 858-8
Landline
Peerless Network of Maryland, LLC
2016/09/20
(240) 858-9
Wireless
Cellco Partnership DBA Verizon Wireless
2016/07/13
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(240) 863-0
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(240) 863-1
Wireless
Cellco Partnership DBA Verizon Wireless
2005/06/02
(240) 863-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/29
(240) 863-3
Landline
Comcast IP Phone, LLC
2007/08/08
(240) 863-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/05/12
(240) 863-5
Wireless
Sprint Spectrum, L.P.
2006/05/18
(240) 863-6
Wireless
Sprint Spectrum, L.P.
2006/06/07
(240) 863-7
Wireless
Sprint Spectrum, L.P.
2005/05/24
(240) 863-8
Wireless
Cellco Partnership DBA Verizon Wireless
2005/05/04
(240) 863-9
Wireless
Sprint Spectrum, L.P.
2011/08/09
(240) 864
Landline
Cavalier East, LLC - MD
2001/05/09
Landline
Level 3 Communications, LLC - AK
-
(240) 865-0
Landline
Comcast IP Phone, LLC
2008/01/22
(240) 865-1
Landline
Ctc Communications Corp. - MD
2005/12/19
(240) 865-2
Landline
Core Communications, Inc.- MD
2008/03/06
(240) 865-3
Landline
Onvoy, LLC - MD
2012/08/08
(240) 865-4
Landline
Level 3 Communications, LLC - AK
2006/08/01
(240) 865-5
Landline
Paetec Communications, Inc. - CA
2007/02/01
(240) 865-7
Landline
Broadview Networks, Inc. - MD
2007/09/04
(240) 865-8
Landline
Mcimetro Access Transmission Services LLC
2007/11/09
(240) 865-9
Landline
Baltimore-washington Telephone (Bwt)
2006/04/12
Landline
Commio, LLC
2017/06/20
(240) 867-0
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 867-1
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 867-2
Landline
Mcimetro Access Transmission Services LLC
2018/05/23
(240) 867-3
Landline
Mcimetro Access Transmission Services LLC
2018/05/23
(240) 867-4
Landline
Core Communications, Inc.- MD
2019/03/15
(240) 867-5
Landline
Commio, LLC
2017/06/23
(240) 867-6
Landline
Local Access LLC - MD
2019/03/28
(240) 867-7
Landline
Core Communications, Inc.- MD
2019/03/15
(240) 867-8
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 867-9
Landline
Core Communications, Inc.- MD
2018/10/11
Landline
Cavalier East, LLC - MD
2001/05/09
(240) 868-0
Landline
Cavalier East, LLC - MD
-
(240) 868-1
Landline
Cavalier East, LLC - MD
-
(240) 868-3
Landline
Cavalier East, LLC - MD
-
(240) 868-4
Landline
Cavalier East, LLC - MD
-
(240) 868-7
Landline
Cavalier East, LLC - MD
-
(240) 868-8
Landline
Terra Nova Telecom Inc.
2020/12/28
(240) 868-9
Landline
Cavalier East, LLC - MD
-
(240) 876
Wireless
Sprint Spectrum, L.P.
-
Landline
Level 3 Communications, LLC - AK
-
(240) 880-0
Landline
Commio, LLC
2021/08/02
(240) 880-1
Landline
Level 3 Communications, LLC - AK
-
(240) 880-2
Landline
Comcast IP Phone, LLC
2018/04/12
(240) 880-3
Landline
Level 3 Communications, LLC - AK
-
(240) 880-4
Landline
Level 3 Communications, LLC - AK
-
(240) 880-5
Landline
Commio, LLC
2021/08/02
(240) 880-6
Landline
Commio, LLC
2021/08/02
(240) 880-7
Landline
Ymax Communications Corp. - MD
2008/08/01
(240) 880-8
Landline
Ymax Communications Corp. - MD
2008/08/01
(240) 880-9
Landline
Commio, LLC
2021/08/02
(240) 882
Wireless
Sprint Spectrum, L.P.
-
Landline
Onvoy, LLC - MD
2021/01/21
(240) 885-0
Landline
Telnyx LLC
2021/03/06
(240) 885-1
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 885-2
Wireless
Cellco Partnership DBA Verizon Wireless
2021/08/04
(240) 885-3
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 885-4
Landline
Onvoy, LLC - MD
2021/01/26
(240) 885-5
Landline
Onvoy, LLC - MD
2021/01/26
(240) 885-6
Landline
Onvoy, LLC - MD
2021/01/26
(240) 885-7
Landline
Onvoy, LLC - MD
2021/01/26
(240) 885-8
Landline
Onvoy, LLC - MD
2021/01/26
(240) 885-9
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/11
(240) 888
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Level 3 Communications, LLC - AK
-
(240) 892-1
Landline
Local Access LLC - MD
2015/02/19
(240) 892-2
Landline
Comcast IP Phone, LLC
2015/03/31
(240) 892-3
Landline
Level 3 Communications, LLC - AK
-
(240) 892-4
Landline
Onvoy, LLC - MD
2011/03/25
(240) 892-5
Landline
Onvoy, LLC - MD
2015/05/28
(240) 892-6
Landline
Peerless Network of Maryland, LLC
2020/03/17
(240) 892-7
Landline
Onvoy, LLC - MD
2014/10/09
(240) 892-8
Landline
Onvoy, LLC - MD
2014/10/09
(240) 893
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Level 3 Communications, LLC - AK
-
(240) 897-2
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 897-4
Landline
Core Communications, Inc.- MD
2019/04/15
(240) 897-5
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 897-6
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 897-7
Landline
Core Communications, Inc.- MD
2018/10/11
(240) 897-8
Landline
Telnyx LLC
2017/04/17
(240) 897-9
Landline
Level 3 Communications, LLC - AK
-
Landline
Level 3 Communications, LLC - AK
-
(240) 898-0
Landline
Commio, LLC
2021/08/02
(240) 898-1
Landline
Commio, LLC
2021/08/02
(240) 898-2
Landline
Level 3 Communications, LLC - AK
-
(240) 898-3
Landline
Commio, LLC
2021/08/02
(240) 898-4
Landline
Onvoy, LLC - MD
2012/09/12
(240) 898-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/03/14
(240) 898-6
Wireless
Omnipoint Communications Cap Operations, LLC
2008/03/24
(240) 898-7
Wireless
Omnipoint Communications Cap Operations, LLC
2007/10/16
(240) 898-8
Wireless
Omnipoint Communications Cap Operations, LLC
2007/10/16
(240) 898-9
Landline
Terra Nova Telecom Inc.
2021/06/24
(240) 899
Wireless
Omnipoint Communications Cap Operations, LLC
2001/03/13
Prefix
Type
Location
Carrier
Assigned
Landline
Onvoy, LLC - MD
2015/02/18
(240) 900-0
Landline
Onvoy, LLC - MD
2015/02/18
(240) 900-1
Landline
Onvoy, LLC - MD
2015/06/26
(240) 900-2
Landline
Onvoy, LLC - MD
2015/06/26
(240) 900-3
Landline
Onvoy, LLC - MD
2015/06/26
(240) 900-4
Landline
Onvoy, LLC - MD
2015/06/26
(240) 900-5
Landline
Onvoy, LLC - MD
2015/06/26
(240) 900-6
Landline
Onvoy, LLC - MD
2015/06/26
(240) 900-7
Landline
Onvoy, LLC - MD
2015/06/26
(240) 900-8
Landline
Onvoy, LLC - MD
2015/02/18
(240) 900-9
Landline
Onvoy, LLC - MD
2015/02/18
Wireless
Omnipoint Communications Cap Operations, LLC
-
(240) 906-0
Wireless
Omnipoint Communications Cap Operations, LLC
2016/09/21
(240) 906-1
Wireless
Omnipoint Communications Cap Operations, LLC
2017/08/31
(240) 906-2
Wireless
Omnipoint Communications Cap Operations, LLC
2016/10/27
(240) 906-3
Wireless
Cellco Partnership DBA Verizon Wireless
2017/09/28
(240) 906-4
Wireless
Omnipoint Communications Cap Operations, LLC
2018/08/22
(240) 906-5
Unknown
Barr Tell USA, Inc.
2018/04/26
(240) 906-6
Landline
Teleport Communications America - ID - LLC
2017/01/16
(240) 906-7
Wireless
Omnipoint Communications Cap Operations, LLC
2018/09/24
(240) 906-8
Landline
Commio, LLC
2021/08/02
(240) 906-9
Wireless
Omnipoint Communications Cap Operations, LLC
2018/10/29
Wireless
Cellco Partnership DBA Verizon Wireless
2016/07/12
(240) 907-0
Wireless
Omnipoint Communications Cap Operations, LLC
2016/08/04
(240) 907-1
Wireless
Omnipoint Communications Cap Operations, LLC
2017/07/07
(240) 907-2
Landline
Comcast IP Phone, LLC
2016/08/23
(240) 907-3
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 907-4
Landline
Core Communications, Inc.- MD
2018/05/23
(240) 907-5
Landline
Onvoy, LLC - MD
2020/03/31
(240) 907-6
Wireless
Cellco Partnership DBA Verizon Wireless
2018/04/18
(240) 907-7
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/05
(240) 907-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/11/09
(240) 907-9
Wireless
Cellco Partnership DBA Verizon Wireless
2016/07/13
Landline
Fractel, LLC
2020/07/15
(240) 922-2
Landline
Fractel, LLC
2020/07/20
(240) 922-4
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 922-9
Landline
Terra Nova Telecom Inc.
2021/05/13
Landline
Cavalier East, LLC - MD
-
(240) 929-0
Landline
Cavalier East, LLC - MD
-
(240) 929-1
Landline
Onvoy, LLC - MD
2020/05/12
(240) 929-2
Landline
Onvoy, LLC - MD
2020/05/12
(240) 929-3
Landline
Cavalier East, LLC - MD
-
(240) 929-4
Landline
Comcast IP Phone, LLC
2015/07/16
(240) 929-5
Landline
Cavalier East, LLC - MD
-
(240) 929-6
Landline
Comcast IP Phone, LLC
2014/05/28
(240) 929-7
Wireless
T-mobile USA, Inc.
2016/12/30
(240) 929-8
Landline
Onvoy, LLC - MD
2020/05/12
(240) 929-9
Landline
Cavalier East, LLC - MD
-
Landline
Onvoy, LLC - MD
2020/11/06
(240) 945-2
Landline
Onvoy, LLC - MD
2020/11/09
(240) 945-3
Landline
Onvoy, LLC - MD
2020/11/09
(240) 945-4
Landline
Onvoy, LLC - MD
2020/11/09
(240) 945-5
Landline
Onvoy, LLC - MD
2020/11/09
Landline
Cavalier East, LLC - MD
2001/05/09
(240) 949-0
Landline
Cavalier East, LLC - MD
-
(240) 949-1
Landline
Onvoy, LLC - MD
2020/05/12
(240) 949-2
Landline
Level 3 Communications, LLC - AK
2004/12/20
(240) 949-3
Landline
Cavalier East, LLC - MD
-
(240) 949-4
Landline
Level 3 Communications, LLC - AK
2003/07/30
(240) 949-5
Landline
Cavalier East, LLC - MD
-
(240) 949-6
Landline
Level 3 Communications, LLC - AK
2004/12/20
(240) 949-7
Landline
Level 3 Communications, LLC - AK
2006/04/07
(240) 949-8
Landline
Cavalier East, LLC - MD
-
(240) 949-9
Landline
Cavalier East, LLC - MD
-
Landline
Onvoy, LLC - MD
2020/11/06
(240) 956-0
Landline
Commio, LLC
2021/08/05
(240) 956-1
Landline
Commio, LLC
2021/08/05
(240) 956-2
Landline
Commio, LLC
2021/08/05
(240) 956-3
Landline
Commio, LLC
2021/08/05
(240) 956-4
Landline
Onvoy, LLC - MD
2020/11/09
(240) 956-5
Landline
Onvoy, LLC - MD
2020/11/09
(240) 956-6
Landline
Onvoy, LLC - MD
2020/11/09
(240) 956-7
Landline
Onvoy, LLC - MD
2020/11/09
(240) 956-8
Wireless
Cellco Partnership DBA Verizon Wireless
2021/06/22
(240) 956-9
Wireless
Cellco Partnership DBA Verizon Wireless
2021/06/22
Landline
Paetec Communications, Inc. - CA
-
(240) 965-0
Landline
Paetec Communications, Inc. - CA
-
(240) 965-1
Landline
Paetec Communications, Inc. - CA
-
(240) 965-2
Landline
Paetec Communications, Inc. - CA
-
(240) 965-3
Landline
Paetec Communications, Inc. - CA
-
(240) 965-4
Landline
Paetec Communications, Inc. - CA
-
(240) 965-5
Landline
Comcast IP Phone, LLC
2015/05/27
(240) 965-6
Landline
Comcast IP Phone, LLC
2006/11/15
(240) 965-7
Landline
Comcast IP Phone, LLC
2006/11/15
(240) 965-8
Landline
Paetec Communications, Inc. - CA
-
(240) 965-9
Landline
Paetec Communications, Inc. - CA
-
Landline
Onvoy, LLC - MD
2015/06/02
(240) 970-0
Wireless
T-mobile USA, Inc.
2016/11/01
(240) 970-1
Landline
Onvoy, LLC - MD
2015/12/11
(240) 970-2
Wireless
T-mobile USA, Inc.
2016/06/29
(240) 970-3
Wireless
T-mobile USA, Inc.
2016/11/18
(240) 970-4
Landline
Onvoy, LLC - MD
2017/05/15
(240) 970-5
Landline
Comcast IP Phone, LLC
2015/08/24
(240) 970-6
Landline
Mcimetro Access Transmission Services LLC
2018/01/25
(240) 970-7
Landline
Onvoy, LLC - MD
2015/06/08
(240) 970-8
Landline
Local Access LLC - MD
2016/05/02
(240) 970-9
Landline
Telnyx LLC
2017/04/17
(240) 988
Wireless
Sprint Spectrum, L.P.
-
(240) 994
Wireless
Cellco Partnership DBA Verizon Wireless
-
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 997-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 997-1
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 997-2
Wireless
Cellco Partnership DBA Verizon Wireless
2004/06/04
(240) 997-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/09/07
(240) 997-4
Wireless
Cellco Partnership DBA Verizon Wireless
2004/09/07
(240) 997-5
Wireless
Cellco Partnership DBA Verizon Wireless
2004/09/07
(240) 997-6
Wireless
Cellco Partnership DBA Verizon Wireless
-
(240) 997-7
Wireless
Cellco Partnership DBA Verizon Wireless
2004/09/07
(240) 997-8
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(240) 997-9
Wireless
Cellco Partnership DBA Verizon Wireless
-
Prefix
Type
Location
Carrier
Assigned
Wireless
New Cingular Wireless PCS, LLC
2008/12/19
(301) 202-0
Wireless
New Cingular Wireless PCS, LLC
2008/12/23
(301) 202-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
(301) 202-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
(301) 202-3
Landline
Us Lec of Maryland, Inc.
2010/05/26
(301) 202-4
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
(301) 202-5
Landline
Ymax Communications Corp. - MD
2010/05/27
(301) 202-6
Landline
Ymax Communications Corp. - MD
2010/05/27
(301) 202-7
Landline
Ymax Communications Corp. - MD
2010/01/05
(301) 202-8
Landline
Ymax Communications Corp. - MD
2010/01/05
(301) 202-9
Landline
Ymax Communications Corp. - MD
2010/01/05
(301) 203
Landline
Verizon Maryland, Inc.
-
Wireless
New Cingular Wireless PCS, LLC
-
(301) 204-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 204-1
Wireless
New Cingular Wireless PCS, LLC
-
(301) 204-2
Wireless
New Cingular Wireless PCS, LLC
-
(301) 204-3
Wireless
New Cingular Wireless PCS, LLC
-
(301) 204-4
Wireless
New Cingular Wireless PCS, LLC
-
(301) 204-5
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(301) 204-6
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(301) 204-7
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
(301) 204-8
Landline
Verizon Maryland, Inc.
2003/07/09
(301) 204-9
Wireless
New Cingular Wireless PCS, LLC
2005/03/14
Landline
Verizon Maryland, Inc.
-
(301) 205-0
Landline
Verizon Maryland, Inc.
-
(301) 205-1
Landline
Hd Carrier LLC
2016/04/20
(301) 205-2
Landline
Hd Carrier LLC
2016/04/20
(301) 205-3
Landline
Hd Carrier LLC
2016/04/20
(301) 205-4
Landline
Hd Carrier LLC
2016/04/20
(301) 205-5
Landline
Onvoy, LLC - MD
2020/09/17
(301) 205-6
Landline
Hd Carrier LLC
2016/04/20
(301) 205-7
Landline
Hd Carrier LLC
2016/04/20
(301) 205-8
Landline
Wide Voice, LLC - MD
2016/04/20
(301) 205-9
Landline
Wide Voice, LLC - MD
2016/04/20
(301) 206
Landline
Verizon Maryland, Inc.
-
(301) 207
Wireless
USA Mobility Wireless, Inc.
-
(301) 209
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 212-0
Wireless
T-mobile USA, Inc.
2013/05/23
(301) 212-1
Landline
Verizon Maryland, Inc.
-
(301) 212-2
Landline
Verizon Maryland, Inc.
-
(301) 212-3
Landline
Verizon Maryland, Inc.
-
(301) 212-4
Landline
Verizon Maryland, Inc.
-
(301) 212-5
Landline
Verizon Maryland, Inc.
-
(301) 212-6
Landline
Verizon Maryland, Inc.
-
(301) 212-7
Landline
Verizon Maryland, Inc.
-
(301) 212-8
Landline
Verizon Maryland, Inc.
-
(301) 212-9
Landline
Verizon Maryland, Inc.
-
(301) 213
Wireless
Sprint Spectrum, L.P.
-
(301) 214
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 215-0
Wireless
Cellco Partnership DBA Verizon Wireless
2017/09/27
(301) 215-1
Wireless
Cellco Partnership DBA Verizon Wireless
2018/08/13
(301) 215-2
Wireless
Brightlink Communications, LLC
2018/09/14
(301) 215-3
Wireless
Brightlink Communications, LLC
2018/09/14
(301) 215-4
Landline
Verizon Maryland, Inc.
-
(301) 215-5
Landline
Verizon Maryland, Inc.
-
(301) 215-6
Landline
Verizon Maryland, Inc.
-
(301) 215-7
Landline
Verizon Maryland, Inc.
-
(301) 215-8
Landline
Verizon Maryland, Inc.
-
(301) 215-9
Landline
Verizon Maryland, Inc.
-
(301) 217
Landline
Verizon Maryland, Inc.
-
(301) 218
Landline
Verizon Maryland, Inc.
-
(301) 219
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 220-0
Landline
Verizon Maryland, Inc.
-
(301) 220-1
Landline
Verizon Maryland, Inc.
-
(301) 220-2
Landline
Verizon Maryland, Inc.
-
(301) 220-3
Landline
Verizon Maryland, Inc.
-
(301) 220-4
Landline
Verizon Maryland, Inc.
-
(301) 220-5
Landline
Verizon Maryland, Inc.
-
(301) 220-6
Landline
Onvoy, LLC - MD
2021/01/19
(301) 220-7
Landline
Verizon Maryland, Inc.
-
(301) 220-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 220-9
Landline
Verizon Maryland, Inc.
-
(301) 221
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-3
Wireless
Omnipoint Communications Cap Operations, LLC
2005/11/11
(301) 222-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-7
Wireless
Omnipoint Communications Cap Operations, LLC
2006/07/07
(301) 222-8
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 222-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 224
Wireless
USA Mobility Wireless, Inc.
-
Landline
Teleport Communications America - ID - LLC
2009/05/21
(301) 225-0
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-1
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-2
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-3
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-4
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-5
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-6
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-7
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-8
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 225-9
Landline
Teleport Communications America - ID - LLC
2009/05/26
(301) 226
Landline
Verizon Maryland, Inc.
-
(301) 227
Landline
Verizon Maryland, Inc.
-
(301) 229
Landline
Verizon Maryland, Inc.
-
(301) 230
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 231-0
Landline
Verizon Maryland, Inc.
-
(301) 231-1
Landline
Onvoy, LLC - MD
2014/08/05
(301) 231-2
Landline
Verizon Maryland, Inc.
-
(301) 231-3
Landline
Verizon Maryland, Inc.
-
(301) 231-4
Landline
Verizon Maryland, Inc.
-
(301) 231-5
Landline
Verizon Maryland, Inc.
-
(301) 231-6
Landline
Verizon Maryland, Inc.
-
(301) 231-7
Landline
Verizon Maryland, Inc.
-
(301) 231-8
Landline
Verizon Maryland, Inc.
-
(301) 231-9
Landline
Verizon Maryland, Inc.
-
(301) 233
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 234-0
Landline
Verizon Maryland, Inc.
-
(301) 234-1
Landline
Core Communications, Inc.- MD
2019/04/05
(301) 234-2
Landline
AT&T - Local
2003/01/15
(301) 234-3
Landline
Broadview Networks of Virginia, Inc. - VA
2017/09/07
(301) 234-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 234-5
Landline
Core Communications, Inc.- MD
2019/04/05
(301) 234-6
Landline
Level 3 Communications, LLC - AK
2008/05/06
(301) 234-7
Landline
Onvoy, LLC - MD
2018/08/20
(301) 234-8
Landline
Onvoy, LLC - MD
2018/08/20
(301) 234-9
Landline
Core Communications, Inc.- MD
2019/04/05
Landline
Mcimetro Access Transmission Services LLC
-
(301) 235-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 235-1
Landline
Onvoy, LLC - MD
2019/02/05
(301) 235-2
Landline
Onvoy, LLC - MD
2018/05/10
(301) 235-3
Landline
Mcimetro Access Transmission Services LLC
2015/08/21
(301) 235-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 235-5
Unknown
Barr Tell USA, Inc.
2018/04/26
(301) 235-6
Wireless
Onvoy Spectrum, LLC
2021/04/22
(301) 235-7
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 235-8
Landline
Onvoy, LLC - MD
2019/02/05
(301) 235-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 236
Landline
Verizon Maryland, Inc.
-
(301) 237
Wireless
Sprint Spectrum, L.P.
-
Landline
Verizon Maryland, Inc.
-
(301) 238-0
Landline
Verizon Maryland, Inc.
2001/11/21
(301) 238-1
Landline
Verizon Maryland, Inc.
2004/06/10
(301) 238-2
Landline
Verizon Maryland, Inc.
-
(301) 238-3
Landline
Verizon Maryland, Inc.
-
(301) 238-4
Landline
Paetec Communications, Inc. - CA
2005/01/21
(301) 238-5
Landline
Paetec Communications, Inc. - CA
2007/01/26
(301) 238-6
Landline
Core Communications, Inc.- MD
2019/03/15
(301) 238-7
Landline
Onvoy, LLC - MD
2016/03/02
(301) 238-8
Landline
Onvoy, LLC - MD
2016/03/02
(301) 238-9
Wireless
Onvoy Spectrum, LLC
2021/04/22
(301) 239
Landline
Verizon Maryland, Inc.
-
(301) 240
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
2006/07/20
(301) 243-0
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-1
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-2
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-3
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-4
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-5
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-6
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-7
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-8
Landline
Verizon Maryland, Inc.
2006/07/25
(301) 243-9
Landline
Verizon Maryland, Inc.
2006/07/25
Landline
Paetec Communications, Inc. - CA
-
(301) 244-0
Landline
Xo Maryland, LLC
2008/10/09
(301) 244-2
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 244-3
Landline
Broadview Networks, Inc. - DC
2011/04/18
(301) 244-4
Landline
Paetec Communications, Inc. - CA
2006/01/27
(301) 244-5
Landline
Comcast IP Phone, LLC
2005/07/07
(301) 244-6
Landline
Paetec Communications, Inc. - CA
2006/01/27
(301) 244-7
Landline
Paetec Communications, Inc. - CA
2006/01/27
(301) 244-8
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 244-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 248
Landline
Verizon Maryland, Inc.
-
(301) 249
Landline
Verizon Maryland, Inc.
-
(301) 251
Landline
Verizon Maryland, Inc.
-
(301) 254
Wireless
Sprint Spectrum, L.P.
-
Landline
Verizon Maryland, Inc.
-
(301) 255-0
Landline
Verizon Maryland, Inc.
-
(301) 255-1
Landline
Verizon Maryland, Inc.
-
(301) 255-2
Landline
Verizon Maryland, Inc.
-
(301) 255-3
Landline
Verizon Maryland, Inc.
-
(301) 255-4
Landline
Verizon Maryland, Inc.
-
(301) 255-5
Landline
Verizon Maryland, Inc.
-
(301) 255-6
Landline
Verizon Maryland, Inc.
-
(301) 255-7
Landline
Verizon Maryland, Inc.
-
(301) 255-8
Landline
Verizon Maryland, Inc.
-
(301) 255-9
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 257
Wireless
Sprint Spectrum, L.P.
-
(301) 258
Landline
Verizon Maryland, Inc.
-
(301) 261
Landline
Verizon Maryland, Inc.
-
(301) 262
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 263-0
Landline
Verizon Maryland, Inc.
-
(301) 263-1
Landline
Verizon Maryland, Inc.
-
(301) 263-2
Landline
Verizon Maryland, Inc.
-
(301) 263-3
Landline
Onvoy, LLC - MD
2016/01/25
(301) 263-4
Wireless
Omnipoint Communications Cap Operations, LLC
2006/02/21
(301) 263-5
Wireless
Sprint Spectrum, L.P.
2006/05/12
(301) 263-6
Landline
Xo Maryland, LLC
2005/07/20
(301) 263-7
Landline
Xo Maryland, LLC
2005/07/20
(301) 263-8
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(301) 263-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 265-0
Landline
Verizon Maryland, Inc.
-
(301) 265-1
Landline
Verizon Maryland, Inc.
-
(301) 265-2
Landline
Onvoy, LLC - MD
2014/10/09
(301) 265-3
Landline
Onvoy, LLC - MD
2014/10/09
(301) 265-4
Landline
AT&T - Local
2002/11/06
(301) 265-5
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(301) 265-6
Wireless
Omnipoint Communications Cap Operations, LLC
2015/06/23
(301) 265-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(301) 265-8
Landline
Verizon Maryland, Inc.
-
(301) 265-9
Landline
Verizon Maryland, Inc.
-
Wireless
Sprint Spectrum, L.P.
2011/10/04
(301) 267-0
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-1
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-2
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-3
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-4
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-5
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-6
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-7
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-8
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 267-9
Wireless
Sprint Spectrum, L.P.
2011/10/05
Landline
Mcimetro Access Transmission Services LLC
2014/11/11
(301) 269-0
Landline
Mcimetro Access Transmission Services LLC
2015/05/18
(301) 269-1
Landline
Mcimetro Access Transmission Services LLC
2015/05/18
(301) 269-2
Landline
Mcimetro Access Transmission Services LLC
2015/05/18
(301) 269-3
Landline
Mcimetro Access Transmission Services LLC
2014/11/13
(301) 269-4
Landline
Mcimetro Access Transmission Services LLC
2015/03/06
(301) 269-5
Landline
Mcimetro Access Transmission Services LLC
2015/03/06
(301) 269-6
Landline
Mcimetro Access Transmission Services LLC
2015/03/06
(301) 269-7
Landline
Mcimetro Access Transmission Services LLC
2015/04/17
(301) 269-8
Landline
Ctc Communications Corp. - MD
2015/06/17
(301) 269-9
Landline
Mcimetro Access Transmission Services LLC
2015/10/13
(301) 270
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 272-0
Wireless
New Cingular Wireless PCS, LLC
2008/02/08
(301) 272-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 272-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 272-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 272-4
Wireless
Sprint Spectrum, L.P.
2008/11/17
(301) 272-5
Wireless
Omnipoint Communications Cap Operations, LLC
2006/09/11
(301) 272-6
Landline
Mcimetro Access Transmission Services LLC
-
(301) 272-7
Wireless
New Cingular Wireless PCS, LLC
2008/02/08
(301) 272-8
Landline
Mcimetro Access Transmission Services LLC
-
(301) 272-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 273-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 273-1
Landline
Onvoy, LLC - MD
2014/10/10
(301) 273-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 273-3
Landline
Comcast IP Phone, LLC
2006/05/08
(301) 273-4
Wireless
New Cingular Wireless PCS, LLC
2011/05/17
(301) 273-5
Wireless
Omnipoint Communications Cap Operations, LLC
2003/07/29
(301) 273-6
Landline
Level 3 Communications, LLC - AK
2016/02/03
(301) 273-7
Landline
Onvoy, LLC - MD
2014/10/10
(301) 273-8
Wireless
Omnipoint Communications Cap Operations, LLC
2006/12/01
(301) 273-9
Landline
Mcimetro Access Transmission Services LLC
-
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-1
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-2
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-3
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-4
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-5
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-6
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-7
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-8
Wireless
New Cingular Wireless PCS, LLC
-
(301) 275-9
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 276-0
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(301) 276-1
Wireless
Cellco Partnership DBA Verizon Wireless
2012/06/05
(301) 276-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 276-3
Landline
Paetec Communications, Inc. - CA
2007/01/25
(301) 276-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(301) 276-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/23
(301) 276-6
Landline
Mcimetro Access Transmission Services LLC
-
(301) 276-7
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
(301) 276-8
Landline
Paetec Communications, Inc. - CA
2007/10/25
(301) 276-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 277
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 278-0
Landline
Quantum Telecommunications, Inc. - MD
2003/10/23
(301) 278-1
Wireless
Cellco Partnership DBA Verizon Wireless
2013/05/20
(301) 278-2
Wireless
Cellco Partnership DBA Verizon Wireless
2014/02/27
(301) 278-3
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 278-4
Landline
AT&T - Local
2003/10/15
(301) 278-5
Landline
Comcast IP Phone, LLC
2008/07/03
(301) 278-6
Wireless
Omnipoint Communications Cap Operations, LLC
2015/08/20
(301) 278-7
Landline
Comcast IP Phone, LLC
2008/07/03
(301) 278-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 278-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 279
Landline
Verizon Maryland, Inc.
-
(301) 280
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 281-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 281-1
Wireless
Omnipoint Communications Cap Operations, LLC
2008/03/14
(301) 281-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 281-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/06/16
(301) 281-4
Landline
Onvoy, LLC - MD
2016/02/10
(301) 281-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/20
(301) 281-6
Landline
Onvoy, LLC - MD
2016/02/10
(301) 281-7
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/20
(301) 281-8
Landline
Atx Telecommunications Services, Ltd
2004/02/26
(301) 281-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 282
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 283-0
Landline
Verizon Maryland, Inc.
-
(301) 283-1
Wireless
Omnipoint Communications Cap Operations, LLC
2008/06/16
(301) 283-2
Landline
Verizon Maryland, Inc.
-
(301) 283-3
Landline
Verizon Maryland, Inc.
-
(301) 283-4
Landline
Verizon Maryland, Inc.
-
(301) 283-5
Landline
Verizon Maryland, Inc.
-
(301) 283-6
Landline
Verizon Maryland, Inc.
-
(301) 283-7
Wireless
Omnipoint Communications Cap Operations, LLC
2013/09/12
(301) 283-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/09/12
(301) 283-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/09/12
Landline
Mcimetro Access Transmission Services LLC
-
(301) 284-0
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(301) 284-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 284-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 284-3
Landline
Onvoy, LLC - MD
2016/01/13
(301) 284-4
Landline
Broadview Networks of Virginia, Inc. - VA
2013/02/28
(301) 284-5
Landline
Mcimetro Access Transmission Services LLC
-
(301) 284-6
Landline
Mcimetro Access Transmission Services LLC
-
(301) 284-7
Landline
Mcimetro Access Transmission Services LLC
-
(301) 284-8
Landline
Bandwidth.com CLEC, LLC - MD
2004/10/20
(301) 284-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 285
Landline
Verizon Maryland, Inc.
-
(301) 286
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 287-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 287-1
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 287-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 287-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 287-4
Landline
Onvoy, LLC - MD
2017/11/09
(301) 287-5
Landline
Onvoy, LLC - MD
2017/11/09
(301) 287-6
Landline
Onvoy, LLC - MD
2017/11/09
(301) 287-7
Landline
Core Communications, Inc.- MD
2019/03/15
(301) 287-8
Landline
Atx Telecommunications Services, Ltd
2004/02/26
(301) 287-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 288-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 288-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(301) 288-2
Landline
Level 3 Telecom of Maryland, LLC - MD
2006/05/02
(301) 288-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 288-4
Landline
Comcast IP Phone, LLC
2013/09/10
(301) 288-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/03/25
(301) 288-7
Landline
Comcast IP Phone, LLC
2006/09/12
(301) 288-8
Landline
Broadview Networks, Inc. - DC
2011/04/18
(301) 288-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 289-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 289-1
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 289-2
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 289-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 289-4
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 289-5
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 289-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 289-7
Landline
Mcimetro Access Transmission Services LLC
2011/08/17
(301) 289-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 289-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 291-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 291-1
Wireless
T-mobile USA, Inc.
2016/10/17
(301) 291-2
Landline
AT&T - Local
2003/06/26
(301) 291-3
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 291-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 291-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/07/16
(301) 291-6
Wireless
T-mobile USA, Inc.
2019/06/26
(301) 291-7
Landline
Bandwidth.com CLEC, LLC - MD
2004/10/20
(301) 291-8
Wireless
T-mobile USA, Inc.
2016/12/30
(301) 291-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 292
Landline
Verizon Maryland, Inc.
-
(301) 294
Landline
Verizon Maryland, Inc.
-
(301) 295
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-4
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-5
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-6
Landline
Comcast IP Phone, LLC
2013/07/22
(301) 296-7
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-8
Landline
Mcimetro Access Transmission Services LLC
-
(301) 296-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 297-0
Landline
Verizon Maryland, Inc.
-
(301) 297-1
Landline
Verizon Maryland, Inc.
-
(301) 297-2
Landline
Terra Nova Telecom Inc.
2020/12/28
(301) 297-3
Landline
Onvoy, LLC - MD
2021/03/03
(301) 297-4
Landline
Verizon Maryland, Inc.
-
(301) 297-5
Landline
Verizon Maryland, Inc.
-
(301) 297-6
Landline
Verizon Maryland, Inc.
-
(301) 297-7
Landline
Verizon Maryland, Inc.
-
(301) 297-8
Landline
Verizon Maryland, Inc.
-
(301) 297-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 298-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 298-1
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 298-2
Landline
Onvoy, LLC - MD
2016/02/17
(301) 298-3
Landline
Onvoy, LLC - MD
2016/02/17
(301) 298-4
Landline
Verizon Maryland, Inc.
2013/01/28
(301) 298-5
Landline
Level 3 Communications, LLC - AK
2008/03/03
(301) 298-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 298-7
Landline
Peerless Network of Maryland, LLC
2016/10/26
(301) 298-8
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 298-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 299
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
Wireless
Cellco Partnership DBA Verizon Wireless
2007/03/30
(301) 300-0
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/09
(301) 300-1
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-2
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-3
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-4
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-5
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-6
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-7
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-8
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 300-9
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 303
Wireless
USA Mobility Wireless, Inc.
-
(301) 306
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 307-0
Landline
Verizon Maryland, Inc.
-
(301) 307-1
Landline
Onvoy, LLC - MD
2016/03/16
(301) 307-2
Landline
Onvoy, LLC - MD
2016/03/16
(301) 307-3
Landline
Terra Nova Telecom Inc.
2020/12/28
(301) 307-4
Landline
Onvoy, LLC - MD
2020/10/08
(301) 307-5
Landline
Peerless Network of Maryland, LLC
2019/11/29
(301) 307-6
Wireless
Onvoy Spectrum, LLC
2021/04/24
(301) 307-7
Landline
Baltimore-washington Telephone (Bwt)
2015/05/27
(301) 307-8
Landline
Hd Carrier LLC
2020/04/07
(301) 307-9
Landline
Onvoy, LLC - MD
2020/10/08
(301) 308
Wireless
USA Mobility Wireless, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 309-0
Landline
Verizon Maryland, Inc.
-
(301) 309-1
Landline
Verizon Maryland, Inc.
-
(301) 309-2
Landline
Verizon Maryland, Inc.
-
(301) 309-3
Landline
Verizon Maryland, Inc.
-
(301) 309-4
Landline
Verizon Maryland, Inc.
-
(301) 309-5
Landline
Verizon Maryland, Inc.
-
(301) 309-6
Landline
Verizon Maryland, Inc.
-
(301) 309-7
Wireless
Cellco Partnership DBA Verizon Wireless
2021/08/04
(301) 309-8
Landline
Verizon Maryland, Inc.
-
(301) 309-9
Landline
Verizon Maryland, Inc.
-
Wireless
New Cingular Wireless PCS, LLC
-
(301) 312-0
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-1
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-2
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-3
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-4
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-5
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-6
Landline
Comcast IP Phone, LLC
2006/09/06
(301) 312-7
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-8
Landline
Comcast IP Phone, LLC
2006/09/06
(301) 312-9
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 313-0
Landline
Verizon Maryland, Inc.
-
(301) 313-1
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 313-2
Landline
Verizon Maryland, Inc.
-
(301) 313-3
Landline
Verizon Maryland, Inc.
-
(301) 313-4
Landline
Verizon Maryland, Inc.
-
(301) 313-5
Landline
Onvoy, LLC - MD
2021/01/19
(301) 313-6
Landline
Verizon Maryland, Inc.
-
(301) 313-7
Landline
Verizon Maryland, Inc.
-
(301) 313-8
Landline
Verizon Maryland, Inc.
-
(301) 313-9
Landline
Verizon Maryland, Inc.
-
(301) 314
Landline
Paetec Communications, Inc. - CA
-
(301) 315
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 316-0
Landline
Verizon Maryland, Inc.
-
(301) 316-1
Landline
Verizon Maryland, Inc.
-
(301) 316-2
Landline
Verizon Maryland, Inc.
-
(301) 316-3
Landline
Verizon Maryland, Inc.
-
(301) 316-4
Landline
Verizon Maryland, Inc.
-
(301) 316-5
Landline
Verizon Maryland, Inc.
-
(301) 316-6
Landline
Verizon Maryland, Inc.
-
(301) 316-7
Landline
Verizon Maryland, Inc.
-
(301) 316-8
Wireless
Omnipoint Communications Cap Operations, LLC
2015/08/20
(301) 316-9
Landline
Comcast IP Phone, LLC
2015/03/19
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-1
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-2
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-3
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-4
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-5
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-6
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-7
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-8
Wireless
New Cingular Wireless PCS, LLC
-
(301) 318-9
Wireless
New Cingular Wireless PCS, LLC
-
(301) 319
Landline
Verizon Maryland, Inc.
-
(301) 320
Landline
Verizon Maryland, Inc.
-
Landline
Onvoy, LLC - MD
-
(301) 321-0
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 321-1
Landline
Commio, LLC
2021/08/02
(301) 321-2
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 321-3
Landline
Broadview Networks, Inc. - DC
2014/05/12
(301) 321-4
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 321-5
Landline
Verizon Maryland, Inc.
2005/11/15
(301) 321-6
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 321-7
Landline
Onvoy, LLC - MD
2015/12/08
(301) 321-8
Landline
Onvoy, LLC - MD
2015/12/08
(301) 321-9
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 322
Landline
Verizon Maryland, Inc.
-
(301) 324
Landline
Verizon Maryland, Inc.
-
(301) 325
Wireless
Cellco Partnership DBA Verizon Wireless
-
Wireless
Omnipoint Communications Cap Operations, LLC
-
(301) 326-0
Wireless
Sprint Spectrum, L.P.
2011/08/09
(301) 326-1
Landline
Comcast IP Phone, LLC
2006/09/12
(301) 326-2
Landline
Comcast IP Phone, LLC
2006/09/12
(301) 326-3
Wireless
Omnipoint Communications Cap Operations, LLC
2004/02/05
(301) 326-4
Landline
Comcast IP Phone, LLC
2006/09/12
(301) 326-5
Wireless
Omnipoint Communications Cap Operations, LLC
2004/10/12
(301) 326-6
Wireless
Omnipoint Communications Cap Operations, LLC
2004/04/21
(301) 326-7
Wireless
Omnipoint Communications Cap Operations, LLC
2004/04/28
(301) 326-8
Wireless
Omnipoint Communications Cap Operations, LLC
2004/08/09
(301) 326-9
Wireless
Omnipoint Communications Cap Operations, LLC
2006/12/13
Landline
Comcast IP Phone, LLC
2006/03/09
(301) 327-0
Landline
Bandwidth.com CLEC, LLC - MD
2014/08/06
(301) 327-1
Landline
Bandwidth.com CLEC, LLC - MD
2009/12/03
(301) 327-2
Landline
Onvoy, LLC - MD
2015/06/26
(301) 327-3
Landline
Mcimetro Access Transmission Services LLC
2007/11/14
(301) 327-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/20
(301) 327-5
Landline
Comcast IP Phone, LLC
2008/02/19
(301) 327-6
Landline
Ymax Communications Corp. - MD
2008/09/02
(301) 327-7
Landline
Ymax Communications Corp. - MD
2007/07/24
(301) 327-8
Landline
Ymax Communications Corp. - MD
2008/09/02
(301) 327-9
Landline
Ymax Communications Corp. - MD
2008/02/14
Landline
Comcast IP Phone, LLC
2006/06/21
(301) 328-0
Landline
Comcast IP Phone, LLC
2006/06/22
(301) 328-1
Landline
Level 3 Communications, LLC - AK
2006/11/15
(301) 328-2
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 328-3
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 328-4
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 328-5
Landline
Comcast IP Phone, LLC
2007/09/27
(301) 328-6
Wireless
Omnipoint Communications Cap Operations, LLC
2006/12/19
(301) 328-7
Landline
Comcast IP Phone, LLC
2007/09/27
(301) 328-8
Landline
Level 3 Communications, LLC - AK
2007/10/26
(301) 328-9
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 332
Wireless
New Cingular Wireless PCS, LLC
-
(301) 333
Landline
Verizon Maryland, Inc.
-
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-1
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-2
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-3
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-4
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-5
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-6
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-7
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-8
Wireless
New Cingular Wireless PCS, LLC
-
(301) 335-9
Wireless
New Cingular Wireless PCS, LLC
-
(301) 336
Landline
Verizon Maryland, Inc.
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 339-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 339-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 339-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 339-3
Wireless
Omnipoint Communications Cap Operations, LLC
2006/11/17
(301) 339-4
Wireless
Omnipoint Communications Cap Operations, LLC
2006/10/17
(301) 339-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 339-6
Landline
Level 3 Telecom of Maryland, LLC - MD
2012/02/06
(301) 339-7
Landline
Paetec Communications, Inc. - CA
2006/11/22
(301) 339-8
Landline
Comcast IP Phone, LLC
2012/11/01
(301) 339-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(301) 340
Landline
Verizon Maryland, Inc.
-
(301) 341
Landline
Verizon Maryland, Inc.
-
(301) 343
Wireless
Sprint Spectrum, L.P.
-
(301) 344
Landline
Verizon Maryland, Inc.
-
(301) 345
Landline
Verizon Maryland, Inc.
-
(301) 346
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 347-0
Landline
Verizon Maryland, Inc.
-
(301) 347-1
Landline
Verizon Maryland, Inc.
-
(301) 347-2
Landline
Verizon Maryland, Inc.
-
(301) 347-3
Landline
Verizon Maryland, Inc.
-
(301) 347-4
Landline
Verizon Maryland, Inc.
-
(301) 347-5
Landline
Verizon Maryland, Inc.
-
(301) 347-6
Landline
Comcast IP Phone, LLC
2016/12/30
(301) 347-7
Landline
Comcast IP Phone, LLC
2017/08/21
(301) 347-8
Wireless
Cellco Partnership DBA Verizon Wireless
2018/08/13
(301) 347-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 348-0
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 348-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 348-2
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 348-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 348-4
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 348-5
Landline
Mcimetro Access Transmission Services LLC
2017/06/23
(301) 348-6
Landline
Core Communications, Inc.- MD
2012/08/02
(301) 348-7
Landline
Core Communications, Inc.- MD
2019/07/12
(301) 348-8
Landline
Comcast IP Phone, LLC
2016/02/09
(301) 348-9
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 350
Landline
Verizon Maryland, Inc.
-
(301) 351
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 352
Landline
Verizon Maryland, Inc.
-
(301) 353
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 354-0
Landline
Teleport Communications America - ID - LLC
-
(301) 354-1
Landline
Teleport Communications America - ID - LLC
-
(301) 354-2
Landline
Teleport Communications America - ID - LLC
-
(301) 354-3
Landline
Teleport Communications America - ID - LLC
-
(301) 354-4
Landline
Teleport Communications America - ID - LLC
-
(301) 354-5
Landline
Teleport Communications America - ID - LLC
-
(301) 354-6
Landline
Centurylink Communications, LLC LA
2013/08/05
(301) 354-7
Landline
Teleport Communications America - ID - LLC
-
(301) 354-8
Landline
Teleport Communications America - ID - LLC
-
(301) 354-9
Landline
Teleport Communications America - ID - LLC
-
Wireless
Cellco Partnership DBA Verizon Wireless
2006/10/12
(301) 357-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/10/17
(301) 357-1
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 357-2
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 357-3
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 357-4
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 357-5
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 357-6
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 357-7
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 357-8
Landline
Local Access LLC - MD
2007/08/17
(301) 357-9
Wireless
Sprint Spectrum, L.P.
2007/08/22
Landline
Level 3 Communications, LLC - AK
-
(301) 358-0
Landline
Level 3 Communications, LLC - AK
-
(301) 358-1
Landline
Level 3 Communications, LLC - AK
-
(301) 358-2
Landline
Level 3 Communications, LLC - AK
-
(301) 358-3
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 358-4
Landline
Level 3 Communications, LLC - AK
2003/02/28
(301) 358-5
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 358-6
Landline
Level 3 Communications, LLC - AK
2006/08/31
(301) 358-7
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 358-9
Landline
Level 3 Communications, LLC - AK
-
(301) 361
Landline
Level 3 Telecom of Maryland, LLC - MD
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 364-0
Landline
Cbeyond Comm, LLC MD
2012/06/08
(301) 364-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 364-2
Wireless
T-mobile USA, Inc.
2013/05/21
(301) 364-3
Landline
Cbeyond Comm, LLC MD
2008/05/21
(301) 364-4
Landline
Bandwidth.com CLEC, LLC - MD
2011/09/15
(301) 364-5
Landline
Paetec Communications, Inc. - CA
2005/11/22
(301) 364-6
Wireless
T-mobile USA, Inc.
2013/05/21
(301) 364-7
Wireless
Omnipoint Communications Cap Operations, LLC
2008/06/16
(301) 364-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/06/16
(301) 364-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 365
Landline
Verizon Maryland, Inc.
-
(301) 367
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 369
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 372-0
Landline
Verizon Maryland, Inc.
-
(301) 372-1
Landline
Verizon Maryland, Inc.
-
(301) 372-2
Landline
Verizon Maryland, Inc.
-
(301) 372-3
Landline
Verizon Maryland, Inc.
-
(301) 372-4
Landline
Core Communications, Inc.- MD
2019/03/15
(301) 372-5
Landline
Ctc Communications Corp. - MD
2016/06/07
(301) 372-6
Landline
Verizon Maryland, Inc.
-
(301) 372-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(301) 372-8
Landline
Verizon Maryland, Inc.
-
(301) 372-9
Wireless
Onvoy Spectrum, LLC
2021/04/22
(301) 379
Wireless
Sprint Spectrum, L.P.
-
(301) 380
Landline
Verizon Maryland, Inc.
-
(301) 382
Landline
Verizon Maryland, Inc.
-
Landline
Comcast IP Phone, LLC
-
(301) 383-0
Landline
Comcast IP Phone, LLC
2012/10/05
(301) 383-1
Landline
Comcast IP Phone, LLC
-
(301) 383-2
Landline
Comcast IP Phone, LLC
2016/06/24
(301) 383-3
Wireless
T-mobile USA, Inc.
2016/09/02
(301) 383-4
Wireless
T-mobile USA, Inc.
2017/03/01
(301) 383-5
Wireless
T-mobile USA, Inc.
2016/11/01
(301) 383-6
Wireless
T-mobile USA, Inc.
2017/06/20
(301) 383-7
Wireless
T-mobile USA, Inc.
2017/09/20
(301) 383-8
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 383-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 384
Landline
Verizon Maryland, Inc.
-
(301) 385
Wireless
New Cingular Wireless PCS, LLC
-
(301) 386
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 388-0
Landline
Verizon Maryland, Inc.
-
(301) 388-1
Landline
Verizon Maryland, Inc.
-
(301) 388-2
Landline
Verizon Maryland, Inc.
-
(301) 388-3
Landline
Verizon Maryland, Inc.
-
(301) 388-4
Landline
Verizon Maryland, Inc.
-
(301) 388-5
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/07
(301) 388-6
Wireless
T-mobile USA, Inc.
2013/07/02
(301) 388-7
Landline
Ctc Communications Corp. - MD
2008/04/01
(301) 388-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 388-9
Landline
Verizon Maryland, Inc.
-
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 389-0
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 389-1
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 389-3
Landline
Ctc Communications Corp. - MD
2006/05/24
(301) 389-4
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 389-5
Landline
Onvoy, LLC - MD
2016/03/10
(301) 389-6
Landline
Onvoy, LLC - MD
2016/03/10
(301) 389-7
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 389-8
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 389-9
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 390
Landline
Verizon Maryland, Inc.
-
(301) 394
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 397-0
Landline
Verizon Maryland, Inc.
-
(301) 397-1
Landline
Verizon Maryland, Inc.
-
(301) 397-2
Landline
Verizon Maryland, Inc.
-
(301) 397-3
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 397-4
Landline
Verizon Maryland, Inc.
-
(301) 397-5
Landline
Verizon Maryland, Inc.
-
(301) 397-6
Landline
Verizon Maryland, Inc.
-
(301) 397-7
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 397-8
Landline
Verizon Maryland, Inc.
-
(301) 397-9
Landline
Core Communications, Inc.- MD
2018/10/11
Landline
Verizon Maryland, Inc.
2003/10/09
(301) 398-0
Landline
Verizon Maryland, Inc.
2003/10/13
(301) 398-1
Landline
Verizon Maryland, Inc.
2003/10/13
(301) 398-2
Landline
Verizon Maryland, Inc.
2003/10/13
(301) 398-3
Landline
Verizon Maryland, Inc.
2003/10/13
(301) 398-4
Landline
Verizon Maryland, Inc.
2003/10/13
(301) 398-5
Landline
Verizon Maryland, Inc.
2003/10/13
(301) 398-6
Landline
Verizon Maryland, Inc.
2003/10/13
(301) 398-7
Landline
Xo Maryland, LLC
2003/10/13
(301) 398-8
Landline
Xo Maryland, LLC
2003/10/13
(301) 398-9
Landline
Xo Maryland, LLC
2003/10/13
Prefix
Type
Location
Carrier
Assigned
Landline
Verizon Maryland, Inc.
2010/03/29
(301) 400-0
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-1
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-2
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-3
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-4
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-5
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-6
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-7
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-8
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 400-9
Landline
Verizon Maryland, Inc.
2010/03/31
(301) 402
Landline
Verizon Maryland, Inc.
-
(301) 403
Landline
Verizon Maryland, Inc.
-
(301) 404
Wireless
Sprint Spectrum, L.P.
-
(301) 405
Landline
Paetec Communications, Inc. - CA
-
(301) 406
Wireless
USA Mobility Wireless, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 408-0
Landline
Verizon Maryland, Inc.
-
(301) 408-1
Landline
Verizon Maryland, Inc.
-
(301) 408-2
Landline
Verizon Maryland, Inc.
-
(301) 408-3
Landline
Verizon Maryland, Inc.
-
(301) 408-4
Landline
Verizon Maryland, Inc.
-
(301) 408-5
Landline
Verizon Maryland, Inc.
-
(301) 408-6
Wireless
Sprint Spectrum, L.P.
2011/08/09
(301) 408-7
Landline
Verizon Maryland, Inc.
-
(301) 408-8
Wireless
Omnipoint Communications Cap Operations, LLC
2003/05/20
(301) 408-9
Wireless
Sprint Spectrum, L.P.
2007/08/22
(301) 409
Wireless
USA Mobility Wireless, Inc.
-
(301) 412
Wireless
New Cingular Wireless PCS, LLC
-
(301) 413
Landline
Verizon Maryland, Inc.
-
(301) 415
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 417-0
Landline
Verizon Maryland, Inc.
-
(301) 417-1
Landline
Verizon Maryland, Inc.
-
(301) 417-2
Landline
Verizon Maryland, Inc.
-
(301) 417-3
Landline
Broadview Networks of Virginia, Inc. - VA
2015/08/18
(301) 417-4
Landline
Comcast IP Phone, LLC
2015/04/02
(301) 417-5
Landline
Onvoy, LLC - MD
2015/05/28
(301) 417-6
Landline
Verizon Maryland, Inc.
-
(301) 417-7
Landline
Verizon Maryland, Inc.
-
(301) 417-8
Landline
Comcast IP Phone, LLC
2015/09/16
(301) 417-9
Landline
Verizon Maryland, Inc.
-
(301) 419
Landline
Verizon Maryland, Inc.
-
(301) 420
Landline
Verizon Maryland, Inc.
-
(301) 422
Landline
Verizon Maryland, Inc.
-
(301) 423
Landline
Verizon Maryland, Inc.
-
(301) 424
Landline
Verizon Maryland, Inc.
-
(301) 425
Landline
Verizon Maryland, Inc.
-
(301) 426
Landline
Verizon Maryland, Inc.
-
(301) 427
Landline
Verizon Maryland, Inc.
-
(301) 428
Landline
Verizon Maryland, Inc.
-
(301) 429
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 430-0
Landline
Verizon Maryland, Inc.
-
(301) 430-1
Landline
Local Access LLC - MD
2016/05/02
(301) 430-2
Landline
Verizon Maryland, Inc.
-
(301) 430-3
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 430-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 430-5
Landline
Verizon Maryland, Inc.
-
(301) 430-6
Landline
Verizon Maryland, Inc.
-
(301) 430-7
Landline
Verizon Maryland, Inc.
-
(301) 430-8
Landline
Verizon Maryland, Inc.
-
(301) 430-9
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 431
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 433-0
Landline
Verizon Maryland, Inc.
-
(301) 433-1
Wireless
Omnipoint Communications Cap Operations, LLC
2007/12/13
(301) 433-2
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(301) 433-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(301) 433-4
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 433-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/03/14
(301) 433-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 433-7
Landline
Onvoy, LLC - MD
2015/05/28
(301) 433-8
Landline
Comcast IP Phone, LLC
2015/07/30
(301) 433-9
Wireless
T-mobile USA, Inc.
2019/11/05
(301) 434
Landline
Verizon Maryland, Inc.
-
(301) 435
Landline
Verizon Maryland, Inc.
-
(301) 436
Landline
Verizon Maryland, Inc.
-
(301) 437
Wireless
Sprint Spectrum, L.P.
-
Landline
Verizon Maryland, Inc.
-
(301) 438-0
Landline
Verizon Maryland, Inc.
-
(301) 438-1
Landline
Verizon Maryland, Inc.
-
(301) 438-2
Landline
Verizon Maryland, Inc.
-
(301) 438-3
Landline
Verizon Maryland, Inc.
-
(301) 438-4
Landline
Centurylink Communications, LLC LA
2014/05/27
(301) 438-5
Landline
Verizon Maryland, Inc.
-
(301) 438-6
Landline
Verizon Maryland, Inc.
-
(301) 438-7
Landline
Verizon Maryland, Inc.
-
(301) 438-8
Landline
Verizon Maryland, Inc.
-
(301) 438-9
Landline
Verizon Maryland, Inc.
-
(301) 439
Landline
Verizon Maryland, Inc.
-
(301) 440
Wireless
Sprint Spectrum, L.P.
-
(301) 441
Landline
Verizon Maryland, Inc.
-
(301) 442
Wireless
Sprint Spectrum, L.P.
-
(301) 443
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 444-0
Landline
Verizon Maryland, Inc.
-
(301) 444-1
Landline
Verizon Maryland, Inc.
-
(301) 444-2
Landline
Verizon Maryland, Inc.
-
(301) 444-3
Landline
Verizon Maryland, Inc.
-
(301) 444-4
Landline
Verizon Maryland, Inc.
2006/12/20
(301) 444-5
Landline
Local Access LLC - MD
2007/08/17
(301) 444-6
Landline
Peerless Network of Maryland, LLC
2020/02/17
(301) 444-7
Landline
Verizon Maryland, Inc.
2004/04/20
(301) 444-8
Landline
Verizon Maryland, Inc.
-
(301) 444-9
Landline
Telnyx LLC
2020/01/16
(301) 445
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 446-0
Landline
Verizon Maryland, Inc.
-
(301) 446-1
Landline
Verizon Maryland, Inc.
-
(301) 446-2
Landline
Verizon Maryland, Inc.
-
(301) 446-3
Landline
Verizon Maryland, Inc.
-
(301) 446-4
Landline
Verizon Maryland, Inc.
-
(301) 446-5
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 446-6
Landline
Verizon Maryland, Inc.
-
(301) 446-7
Landline
Verizon Maryland, Inc.
-
(301) 446-8
Landline
Verizon Maryland, Inc.
-
(301) 446-9
Landline
Verizon Maryland, Inc.
-
Landline
Comcast IP Phone, LLC
-
(301) 448-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/02/06
(301) 448-1
Landline
Comcast IP Phone, LLC
-
(301) 448-2
Wireless
Cellco Partnership DBA Verizon Wireless
2006/03/06
(301) 448-3
Wireless
Sprint Spectrum, L.P.
2011/08/09
(301) 448-4
Landline
Baltimore-washington Telephone (Bwt)
2010/12/14
(301) 448-5
Wireless
Cellco Partnership DBA Verizon Wireless
2005/09/07
(301) 448-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/09/07
(301) 448-7
Wireless
Cellco Partnership DBA Verizon Wireless
2005/10/07
(301) 448-8
Wireless
Cellco Partnership DBA Verizon Wireless
2005/10/07
(301) 448-9
Wireless
Cellco Partnership DBA Verizon Wireless
2005/11/03
(301) 449
Landline
Verizon Maryland, Inc.
-
(301) 451
Landline
Verizon Maryland, Inc.
-
(301) 452
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 454-0
Landline
Verizon Maryland, Inc.
-
(301) 454-1
Landline
Verizon Maryland, Inc.
-
(301) 454-2
Landline
Verizon Maryland, Inc.
-
(301) 454-3
Landline
Verizon Maryland, Inc.
-
(301) 454-4
Landline
Verizon Maryland, Inc.
-
(301) 454-5
Landline
Verizon Maryland, Inc.
-
(301) 454-6
Landline
Verizon Maryland, Inc.
-
(301) 454-7
Landline
Verizon Maryland, Inc.
-
(301) 454-8
Landline
Verizon Maryland, Inc.
-
(301) 454-9
Wireless
Omnipoint Communications Cap Operations, LLC
2011/11/09
(301) 455
Wireless
Sprint Spectrum, L.P.
-
Landline
Comcast IP Phone, LLC
-
(301) 456-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 456-1
Landline
Comcast IP Phone, LLC
-
(301) 456-2
Landline
Comcast IP Phone, LLC
-
(301) 456-3
Wireless
Cellco Partnership DBA Verizon Wireless
2012/08/06
(301) 456-4
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/18
(301) 456-5
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/18
(301) 456-6
Wireless
Cellco Partnership DBA Verizon Wireless
2011/11/16
(301) 456-7
Landline
Comcast IP Phone, LLC
2013/04/18
(301) 456-8
Landline
Comcast IP Phone, LLC
-
(301) 456-9
Wireless
Cellco Partnership DBA Verizon Wireless
2013/08/02
(301) 457
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 458-0
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 458-1
Wireless
Cellco Partnership DBA Verizon Wireless
2015/08/07
(301) 458-2
Landline
Teleport Communications America - ID - LLC
-
(301) 458-3
Landline
Onvoy, LLC - MD
2016/01/28
(301) 458-4
Landline
Teleport Communications America - ID - LLC
-
(301) 458-5
Wireless
Cellco Partnership DBA Verizon Wireless
2013/03/28
(301) 458-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 458-7
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 458-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 458-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(301) 459
Landline
Verizon Maryland, Inc.
-
(301) 460
Landline
Verizon Maryland, Inc.
-
(301) 461
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 464
Landline
Verizon Maryland, Inc.
-
(301) 466
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 467
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 468
Landline
Verizon Maryland, Inc.
-
(301) 469
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 470-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 470-1
Landline
Verizon Maryland, Inc.
-
(301) 470-2
Landline
Verizon Maryland, Inc.
-
(301) 470-3
Landline
Verizon Maryland, Inc.
-
(301) 470-4
Landline
Verizon Maryland, Inc.
-
(301) 470-5
Landline
Verizon Maryland, Inc.
-
(301) 470-6
Landline
Verizon Maryland, Inc.
-
(301) 470-7
Landline
Verizon Maryland, Inc.
-
(301) 470-8
Landline
Verizon Maryland, Inc.
-
(301) 470-9
Landline
Verizon Maryland, Inc.
-
(301) 474
Landline
Verizon Maryland, Inc.
-
Landline
Comcast IP Phone, LLC
-
(301) 477-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 477-1
Landline
Comcast IP Phone, LLC
-
(301) 477-2
Landline
Comcast IP Phone, LLC
-
(301) 477-3
Landline
Comcast IP Phone, LLC
-
(301) 477-4
Landline
Comcast IP Phone, LLC
2016/12/30
(301) 477-5
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 477-6
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 477-7
Landline
Comcast IP Phone, LLC
2015/08/18
(301) 477-8
Landline
Onvoy, LLC - MD
2017/12/15
(301) 477-9
Landline
Onvoy, LLC - MD
2017/12/15
Landline
Mcimetro Access Transmission Services LLC
-
(301) 479-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 479-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 479-2
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 479-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 479-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 479-5
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 479-6
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 479-7
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 479-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 479-9
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 480
Landline
Verizon Maryland, Inc.
-
(301) 484
Landline
Comcast IP Phone, LLC
-
Landline
Comcast IP Phone, LLC
-
(301) 485-0
Landline
Comcast IP Phone, LLC
2012/09/12
(301) 485-1
Landline
Comcast IP Phone, LLC
-
(301) 485-2
Landline
Onvoy, LLC - MD
2016/02/17
(301) 485-3
Landline
Broadview Networks, Inc. - MD
2015/08/06
(301) 485-4
Landline
Onvoy, LLC - MD
2016/03/29
(301) 485-5
Landline
Onvoy, LLC - MD
2015/05/28
(301) 485-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(301) 485-7
Landline
Paetec Communications, Inc. - CA
2006/08/04
(301) 485-8
Landline
Comcast IP Phone, LLC
2008/04/14
(301) 485-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
Landline
Verizon Maryland, Inc.
-
(301) 486-0
Landline
Verizon Maryland, Inc.
-
(301) 486-1
Landline
Verizon Maryland, Inc.
-
(301) 486-2
Landline
Verizon Maryland, Inc.
-
(301) 486-3
Landline
Verizon Maryland, Inc.
-
(301) 486-4
Landline
Verizon Maryland, Inc.
-
(301) 486-5
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 486-6
Landline
Verizon Maryland, Inc.
-
(301) 486-7
Landline
Verizon Maryland, Inc.
-
(301) 486-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 486-9
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 488
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 489-0
Landline
Verizon Maryland, Inc.
-
(301) 489-1
Landline
Verizon Maryland, Inc.
-
(301) 489-2
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 489-3
Landline
Verizon Maryland, Inc.
-
(301) 489-4
Landline
Verizon Maryland, Inc.
-
(301) 489-5
Landline
Verizon Maryland, Inc.
-
(301) 489-6
Landline
Verizon Maryland, Inc.
-
(301) 489-7
Landline
Verizon Maryland, Inc.
-
(301) 489-8
Landline
Verizon Maryland, Inc.
-
(301) 489-9
Landline
Verizon Maryland, Inc.
-
(301) 492
Landline
Verizon Maryland, Inc.
-
(301) 493
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 494-0
Landline
Verizon Maryland, Inc.
-
(301) 494-1
Landline
Bandwidth.com CLEC, LLC - MD
2012/05/29
(301) 494-2
Landline
Comcast IP Phone, LLC
2015/03/03
(301) 494-3
Landline
Bandwidth.com CLEC, LLC - MD
2015/02/06
(301) 494-4
Landline
Ymax Communications Corp. - MD
2011/03/01
(301) 494-5
Landline
Ymax Communications Corp. - MD
2011/06/07
(301) 494-6
Landline
Centurylink Communications, LLC LA
2014/05/23
(301) 494-7
Landline
Ymax Communications Corp. - MD
2011/06/07
(301) 494-8
Landline
Peerless Network of Maryland, LLC
2013/04/09
(301) 494-9
Landline
Peerless Network of Maryland, LLC
2013/04/09
(301) 495
Landline
Verizon Maryland, Inc.
-
(301) 496
Landline
Verizon Maryland, Inc.
-
(301) 499
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
Landline
Xo Maryland, LLC
-
(301) 500-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/05
(301) 500-1
Landline
Allegiance Telecom of Maryland, Inc.
2011/04/13
(301) 500-2
Landline
Xo Maryland, LLC
2011/04/06
(301) 500-3
Landline
Allegiance Telecom of Maryland, Inc.
2011/04/13
(301) 500-4
Wireless
Sprint Spectrum, L.P.
2010/09/21
(301) 500-5
Wireless
Sprint Spectrum, L.P.
2010/09/21
(301) 500-6
Wireless
Sprint Spectrum, L.P.
2010/09/21
(301) 500-7
Wireless
Sprint Spectrum, L.P.
2010/09/21
(301) 500-8
Wireless
Cellco Partnership DBA Verizon Wireless
2011/07/05
(301) 500-9
Wireless
Sprint Spectrum, L.P.
2010/09/21
(301) 502
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 503
Wireless
New Cingular Wireless PCS, LLC
-
(301) 504
Landline
Verizon Maryland, Inc.
-
(301) 505
Landline
Verizon Maryland, Inc.
-
(301) 506
Wireless
USA Mobility Wireless, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 507-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 507-1
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 507-2
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 507-3
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 507-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 507-5
Landline
Verizon Maryland, Inc.
-
(301) 507-6
Landline
Verizon Maryland, Inc.
-
(301) 507-7
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 507-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 507-9
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 509
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 510
Wireless
USA Mobility Wireless, Inc.
-
(301) 512
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 513-0
Landline
Verizon Maryland, Inc.
-
(301) 513-1
Landline
Verizon Maryland, Inc.
-
(301) 513-2
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 513-3
Landline
Verizon Maryland, Inc.
-
(301) 513-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 513-5
Landline
Verizon Maryland, Inc.
-
(301) 513-6
Landline
Verizon Maryland, Inc.
-
(301) 513-7
Landline
Verizon Maryland, Inc.
-
(301) 513-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 513-9
Landline
Verizon Maryland, Inc.
-
(301) 516
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 517-0
Landline
Verizon Maryland, Inc.
-
(301) 517-1
Landline
Verizon Maryland, Inc.
-
(301) 517-2
Landline
Verizon Maryland, Inc.
-
(301) 517-3
Landline
Verizon Maryland, Inc.
-
(301) 517-4
Landline
Verizon Maryland, Inc.
-
(301) 517-5
Landline
Verizon Maryland, Inc.
-
(301) 517-6
Landline
Onvoy, LLC - MD
2017/12/14
(301) 517-7
Landline
Telnyx LLC
2017/03/02
(301) 517-8
Landline
Verizon Maryland, Inc.
-
(301) 517-9
Landline
Onvoy, LLC - MD
2017/12/14
(301) 518
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 520
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 521
Landline
Verizon Maryland, Inc.
-
(301) 522
Landline
Verizon Maryland, Inc.
-
(301) 523
Wireless
Sprint Spectrum, L.P.
-
(301) 526
Wireless
New Cingular Wireless PCS, LLC
-
(301) 529
Wireless
New Cingular Wireless PCS, LLC
-
(301) 530
Landline
Verizon Maryland, Inc.
-
Landline
Starpower Communications, LLC - DC
-
(301) 531-0
Wireless
Omnipoint Communications Cap Operations, LLC
2012/02/24
(301) 531-1
Landline
Starpower Communications, LLC - DC
-
(301) 531-2
Landline
Starpower Communications, LLC - DC
-
(301) 531-3
Landline
Starpower Communications, LLC - DC
-
(301) 531-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(301) 531-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(301) 531-6
Landline
Starpower Communications, LLC - DC
-
(301) 531-7
Landline
Starpower Communications, LLC - DC
-
(301) 531-8
Landline
Starpower Communications, LLC - DC
-
(301) 531-9
Landline
Atx Telecommunications Services, Ltd
2003/03/12
(301) 537
Wireless
Sprint Spectrum, L.P.
-
(301) 538
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Teleport Communications America - ID - LLC
-
(301) 541-0
Landline
Comcast IP Phone, LLC
2012/08/08
(301) 541-1
Landline
Teleport Communications America - ID - LLC
-
(301) 541-2
Landline
Teleport Communications America - ID - LLC
-
(301) 541-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/20
(301) 541-4
Wireless
T-mobile USA, Inc.
2013/05/23
(301) 541-5
Landline
Teleport Communications America - ID - LLC
-
(301) 541-6
Wireless
T-mobile USA, Inc.
2013/05/23
(301) 541-7
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 541-8
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 541-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/09/12
(301) 544
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 545-0
Landline
Verizon Maryland, Inc.
-
(301) 545-1
Landline
Verizon Maryland, Inc.
-
(301) 545-2
Landline
Comcast IP Phone, LLC
2017/07/18
(301) 545-3
Unknown
Barr Tell USA, Inc.
2018/04/26
(301) 545-4
Landline
Verizon Maryland, Inc.
-
(301) 545-5
Landline
Verizon Maryland, Inc.
-
(301) 545-6
Landline
Verizon Maryland, Inc.
-
(301) 545-7
Landline
Verizon Maryland, Inc.
-
(301) 545-8
Landline
Verizon Maryland, Inc.
-
(301) 545-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
2014/04/07
(301) 546-0
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-1
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-2
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-3
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-4
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-5
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-6
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-7
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-8
Landline
Verizon Maryland, Inc.
2014/04/08
(301) 546-9
Landline
Verizon Maryland, Inc.
2014/04/08
Landline
Teleport Communications America - ID - LLC
-
(301) 547-0
Landline
Teleport Communications America - ID - LLC
-
(301) 547-1
Wireless
New Cingular Wireless PCS, LLC
2008/02/28
(301) 547-2
Landline
Teleport Communications America - ID - LLC
-
(301) 547-3
Landline
Level 3 Communications, LLC - AK
2006/05/10
(301) 547-4
Landline
Teleport Communications America - ID - LLC
-
(301) 547-5
Wireless
Omnipoint Communications Cap Operations, LLC
2006/12/13
(301) 547-6
Wireless
Brightlink Communications, LLC
2016/08/01
(301) 547-7
Landline
Onvoy, LLC - MD
2020/11/04
(301) 547-8
Landline
Xo Maryland, LLC
2014/02/11
(301) 547-9
Wireless
Omnipoint Communications Cap Operations, LLC
2007/01/10
(301) 548
Landline
Verizon Maryland, Inc.
-
(301) 551
Landline
Baltimore-washington Telephone (Bwt)
-
(301) 552
Landline
Verizon Maryland, Inc.
-
(301) 554
Wireless
USA Mobility Wireless, Inc.
-
(301) 555
Landline
Verizon Maryland, Inc.
-
Landline
Level 3 Communications, LLC - AK
2011/09/06
(301) 557-0
Wireless
New Cingular Wireless PCS, LLC
2014/09/02
(301) 557-1
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-2
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-3
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-4
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-5
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-6
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-7
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-8
Landline
Level 3 Communications, LLC - AK
2011/09/16
(301) 557-9
Landline
Comcast IP Phone, LLC
2013/08/15
(301) 558
Wireless
USA Mobility Wireless, Inc.
-
(301) 559
Landline
Verizon Maryland, Inc.
-
(301) 560
Landline
Paetec Communications, Inc. - CA
-
(301) 561
Landline
Baltimore-washington Telephone (Bwt)
-
(301) 562
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 563-0
Landline
Verizon Maryland, Inc.
-
(301) 563-1
Landline
Verizon Maryland, Inc.
-
(301) 563-2
Landline
Verizon Maryland, Inc.
-
(301) 563-3
Landline
Verizon Maryland, Inc.
-
(301) 563-4
Landline
Verizon Maryland, Inc.
-
(301) 563-5
Landline
Verizon Maryland, Inc.
-
(301) 563-6
Landline
Verizon Maryland, Inc.
-
(301) 563-7
Landline
Verizon Maryland, Inc.
-
(301) 563-8
Landline
Verizon Maryland, Inc.
-
(301) 563-9
Landline
Level 3 Communications, LLC - AK
2007/11/20
(301) 564
Landline
Verizon Maryland, Inc.
-
(301) 565
Landline
Verizon Maryland, Inc.
-
(301) 566
Landline
Verizon Maryland, Inc.
-
(301) 567
Landline
Verizon Maryland, Inc.
-
(301) 568
Landline
Verizon Maryland, Inc.
-
(301) 571
Landline
Verizon Maryland, Inc.
-
(301) 572
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 574-0
Landline
Verizon Maryland, Inc.
-
(301) 574-1
Landline
Verizon Maryland, Inc.
-
(301) 574-2
Landline
Verizon Maryland, Inc.
-
(301) 574-3
Landline
Verizon Maryland, Inc.
-
(301) 574-4
Landline
Verizon Maryland, Inc.
-
(301) 574-5
Landline
Verizon Maryland, Inc.
-
(301) 574-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 574-7
Landline
Comcast IP Phone, LLC
2018/10/11
(301) 574-8
Landline
Verizon Maryland, Inc.
-
(301) 574-9
Landline
Verizon Maryland, Inc.
-
(301) 576
Landline
Paetec Communications, Inc. - CA
-
(301) 577
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 578-0
Landline
Verizon Maryland, Inc.
-
(301) 578-1
Landline
Verizon Maryland, Inc.
-
(301) 578-2
Landline
Bandwidth.com CLEC, LLC - MD
2020/05/14
(301) 578-3
Unknown
Barr Tell USA, Inc.
2018/04/26
(301) 578-4
Landline
Verizon Maryland, Inc.
-
(301) 578-5
Landline
Bandwidth.com CLEC, LLC - MD
2020/05/14
(301) 578-6
Landline
Bandwidth.com CLEC, LLC - MD
2018/06/19
(301) 578-7
Landline
Centurylink Communications, LLC LA
2018/02/16
(301) 578-8
Landline
Verizon Maryland, Inc.
-
(301) 578-9
Landline
Verizon Maryland, Inc.
-
(301) 580
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 581
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 583-0
Landline
Verizon Maryland, Inc.
-
(301) 583-1
Landline
Verizon Maryland, Inc.
-
(301) 583-2
Landline
Verizon Maryland, Inc.
-
(301) 583-3
Landline
Verizon Maryland, Inc.
-
(301) 583-4
Landline
Verizon Maryland, Inc.
-
(301) 583-5
Landline
Verizon Maryland, Inc.
-
(301) 583-6
Wireless
T-mobile USA, Inc.
2013/05/21
(301) 583-7
Landline
Verizon Maryland, Inc.
-
(301) 583-8
Landline
Verizon Maryland, Inc.
-
(301) 583-9
Landline
Verizon Maryland, Inc.
-
(301) 584
Landline
Baltimore-washington Telephone (Bwt)
-
(301) 585
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 586-0
Landline
Verizon Maryland, Inc.
-
(301) 586-1
Landline
Verizon Maryland, Inc.
-
(301) 586-2
Wireless
Sprint Spectrum, L.P.
2007/11/09
(301) 586-3
Landline
Verizon Maryland, Inc.
-
(301) 586-4
Landline
Verizon Maryland, Inc.
-
(301) 586-5
Wireless
Sprint Spectrum, L.P.
2007/11/09
(301) 586-6
Landline
Verizon Maryland, Inc.
-
(301) 586-7
Wireless
Sprint Spectrum, L.P.
2007/11/09
(301) 586-8
Landline
Verizon Maryland, Inc.
-
(301) 586-9
Landline
Verizon Maryland, Inc.
-
(301) 587
Landline
Verizon Maryland, Inc.
-
(301) 588
Landline
Verizon Maryland, Inc.
-
(301) 589
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 590-0
Landline
Verizon Maryland, Inc.
-
(301) 590-1
Landline
Verizon Maryland, Inc.
-
(301) 590-2
Landline
Verizon Maryland, Inc.
-
(301) 590-3
Landline
Verizon Maryland, Inc.
-
(301) 590-4
Landline
Verizon Maryland, Inc.
-
(301) 590-5
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/04
(301) 590-6
Landline
Verizon Maryland, Inc.
-
(301) 590-7
Landline
Verizon Maryland, Inc.
-
(301) 590-8
Landline
Verizon Maryland, Inc.
-
(301) 590-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 592-0
Landline
Verizon Maryland, Inc.
-
(301) 592-1
Landline
Verizon Maryland, Inc.
-
(301) 592-2
Landline
Verizon Maryland, Inc.
-
(301) 592-3
Landline
Verizon Maryland, Inc.
-
(301) 592-4
Landline
Verizon Maryland, Inc.
-
(301) 592-5
Landline
Verizon Maryland, Inc.
-
(301) 592-6
Landline
Verizon Maryland, Inc.
-
(301) 592-7
Wireless
Omnipoint Communications Cap Operations, LLC
2003/07/09
(301) 592-8
Landline
Verizon Maryland, Inc.
-
(301) 592-9
Landline
Verizon Maryland, Inc.
-
(301) 593
Landline
Verizon Maryland, Inc.
-
(301) 594
Landline
Verizon Maryland, Inc.
-
(301) 595
Landline
Verizon Maryland, Inc.
-
(301) 598
Landline
Verizon Maryland, Inc.
-
(301) 599
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
(301) 601
Landline
Verizon Maryland, Inc.
-
(301) 602
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 603-0
Landline
Verizon Maryland, Inc.
-
(301) 603-1
Landline
Verizon Maryland, Inc.
-
(301) 603-2
Landline
Comcast IP Phone, LLC
2016/06/24
(301) 603-3
Landline
Onvoy, LLC - MD
2015/05/28
(301) 603-4
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 603-5
Unknown
Barr Tell USA, Inc.
2018/04/26
(301) 603-6
Landline
Core Communications, Inc.- MD
2019/07/12
(301) 603-7
Landline
Verizon Maryland, Inc.
-
(301) 603-8
Landline
Verizon Maryland, Inc.
-
(301) 603-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 605-0
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/04
(301) 605-1
Landline
Paetec Communications, Inc. - CA
2009/10/29
(301) 605-2
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(301) 605-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(301) 605-4
Wireless
Omnipoint Communications Cap Operations, LLC
2007/01/17
(301) 605-5
Wireless
Omnipoint Communications Cap Operations, LLC
2007/02/23
(301) 605-6
Landline
Verizon Maryland, Inc.
-
(301) 605-7
Landline
Comcast IP Phone, LLC
2007/04/20
(301) 605-8
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(301) 605-9
Landline
Level 3 Communications, LLC - AK
2011/12/21
(301) 608
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 610-0
Landline
Verizon Maryland, Inc.
-
(301) 610-1
Landline
Verizon Maryland, Inc.
-
(301) 610-2
Landline
Verizon Maryland, Inc.
-
(301) 610-3
Landline
Onvoy, LLC - MD
2020/03/31
(301) 610-4
Landline
Verizon Maryland, Inc.
-
(301) 610-5
Landline
Verizon Maryland, Inc.
-
(301) 610-6
Landline
Verizon Maryland, Inc.
-
(301) 610-7
Landline
Verizon Maryland, Inc.
-
(301) 610-8
Landline
Verizon Maryland, Inc.
-
(301) 610-9
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
2012/10/11
(301) 612-0
Landline
Hd Carrier LLC
2016/08/12
(301) 612-1
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-2
Landline
Hd Carrier LLC
2016/04/20
(301) 612-3
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-4
Landline
Hd Carrier LLC
2016/08/12
(301) 612-5
Landline
Hd Carrier LLC
2016/08/12
(301) 612-6
Landline
Teleport Communications America - ID - LLC
2012/10/12
(301) 612-7
Landline
Hd Carrier LLC
2016/08/12
(301) 612-8
Landline
Hd Carrier LLC
2016/08/12
(301) 612-9
Landline
Hd Carrier LLC
2016/08/12
(301) 613
Wireless
Sprint Spectrum, L.P.
-
(301) 614
Landline
Verizon Maryland, Inc.
-
(301) 615
Landline
Bandwidth.com CLEC, LLC - MD
-
Landline
Verizon Maryland, Inc.
-
(301) 618-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 618-1
Landline
Verizon Maryland, Inc.
-
(301) 618-2
Landline
Us Lec of Maryland, Inc.
-
(301) 618-3
Landline
Us Lec of Maryland, Inc.
-
(301) 618-4
Landline
Verizon Maryland, Inc.
-
(301) 618-5
Landline
Verizon Maryland, Inc.
-
(301) 618-6
Landline
Us Lec of Maryland, Inc.
-
(301) 618-7
Landline
Verizon Maryland, Inc.
-
(301) 618-8
Landline
Verizon Maryland, Inc.
-
(301) 618-9
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 621
Landline
Verizon Maryland, Inc.
-
(301) 622
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 623-0
Landline
Teleport Communications America - ID - LLC
-
(301) 623-1
Landline
Teleport Communications America - ID - LLC
-
(301) 623-2
Landline
Teleport Communications America - ID - LLC
-
(301) 623-3
Landline
Teleport Communications America - ID - LLC
-
(301) 623-4
Landline
Teleport Communications America - ID - LLC
-
(301) 623-5
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 623-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 623-7
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 623-8
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 623-9
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 625
Landline
Verizon Maryland, Inc.
-
(301) 626
Landline
Verizon Maryland, Inc.
-
(301) 627
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 628-0
Landline
Teleport Communications America - ID - LLC
-
(301) 628-1
Landline
Teleport Communications America - ID - LLC
-
(301) 628-2
Landline
Teleport Communications America - ID - LLC
-
(301) 628-3
Landline
Teleport Communications America - ID - LLC
-
(301) 628-4
Landline
Teleport Communications America - ID - LLC
-
(301) 628-5
Landline
Teleport Communications America - ID - LLC
-
(301) 628-6
Wireless
Sprint Spectrum, L.P.
2007/11/09
(301) 628-7
Wireless
Sprint Spectrum, L.P.
2007/11/09
(301) 628-8
Wireless
Sprint Spectrum, L.P.
2007/11/09
(301) 628-9
Wireless
Sprint Spectrum, L.P.
2011/08/09
Landline
Verizon Maryland, Inc.
-
(301) 629-0
Landline
Verizon Maryland, Inc.
-
(301) 629-1
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 629-2
Landline
Verizon Maryland, Inc.
-
(301) 629-3
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 629-4
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 629-5
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 629-6
Landline
Core Communications, Inc.- MD
2019/04/12
(301) 629-7
Landline
Core Communications, Inc.- MD
2019/04/12
(301) 629-8
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 629-9
Landline
Core Communications, Inc.- MD
2019/04/12
(301) 630
Landline
Verizon Maryland, Inc.
-
(301) 633
Wireless
New Cingular Wireless PCS, LLC
-
(301) 634
Landline
Teleport Communications America - ID - LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 636-0
Wireless
Cellco Partnership DBA Verizon Wireless
2019/10/01
(301) 636-1
Landline
Verizon Maryland, Inc.
-
(301) 636-2
Landline
Verizon Maryland, Inc.
-
(301) 636-3
Landline
Comcast IP Phone, LLC
2013/08/15
(301) 636-4
Landline
Comcast IP Phone, LLC
2009/12/10
(301) 636-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 636-6
Landline
Verizon Maryland, Inc.
-
(301) 636-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 636-8
Landline
Verizon Maryland, Inc.
-
(301) 636-9
Landline
Verizon Maryland, Inc.
-
Landline
Level 3 Communications, LLC - AK
-
(301) 637-0
Landline
Level 3 Communications, LLC - AK
2004/12/01
(301) 637-1
Landline
Ctc Communications Corp. - MD
2005/11/16
(301) 637-2
Landline
Level 3 Communications, LLC - AK
2006/03/13
(301) 637-3
Landline
Level 3 Communications, LLC - AK
2006/03/13
(301) 637-4
Landline
Level 3 Communications, LLC - AK
-
(301) 637-5
Landline
Level 3 Communications, LLC - AK
2005/03/08
(301) 637-6
Landline
Level 3 Communications, LLC - AK
2005/03/08
(301) 637-7
Landline
Level 3 Communications, LLC - AK
2005/03/08
(301) 637-8
Landline
Level 3 Communications, LLC - AK
2006/05/19
(301) 637-9
Landline
Comcast IP Phone, LLC
2010/09/29
Landline
Verizon Maryland, Inc.
-
(301) 640-0
Wireless
Omnipoint Communications Cap Operations, LLC
2013/04/23
(301) 640-1
Wireless
Omnipoint Communications Cap Operations, LLC
2007/05/18
(301) 640-2
Landline
Verizon Maryland, Inc.
-
(301) 640-3
Landline
Verizon Maryland, Inc.
-
(301) 640-4
Landline
Verizon Maryland, Inc.
-
(301) 640-5
Landline
Onvoy, LLC - MD
2012/08/08
(301) 640-6
Wireless
Omnipoint Communications Cap Operations, LLC
2007/07/19
(301) 640-7
Landline
Verizon Maryland, Inc.
-
(301) 640-8
Wireless
T-mobile USA, Inc.
2013/07/02
(301) 640-9
Wireless
Omnipoint Communications Cap Operations, LLC
2013/04/23
(301) 641
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 642
Wireless
New Cingular Wireless PCS, LLC
-
(301) 646
Wireless
New Cingular Wireless PCS, LLC
-
(301) 647
Wireless
American Messaging Services, LLC
-
(301) 648
Wireless
New Cingular Wireless PCS, LLC
-
(301) 649
Landline
Verizon Maryland, Inc.
-
(301) 650
Landline
Verizon Maryland, Inc.
-
(301) 651
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 652
Landline
Verizon Maryland, Inc.
-
(301) 654
Landline
Verizon Maryland, Inc.
-
(301) 655
Wireless
New Cingular Wireless PCS, LLC
-
(301) 656
Landline
Verizon Maryland, Inc.
-
(301) 657
Landline
Verizon Maryland, Inc.
-
(301) 661
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 664-0
Wireless
Omnipoint Communications Cap Operations, LLC
2018/08/22
(301) 664-1
Landline
Telnyx LLC
2017/03/02
(301) 664-2
Landline
Level 3 Communications, LLC - AK
2019/04/30
(301) 664-3
Wireless
Omnipoint Communications Cap Operations, LLC
2017/07/07
(301) 664-4
Landline
Bandwidth.com CLEC, LLC - MD
2018/09/21
(301) 664-5
Landline
Verizon Maryland, Inc.
-
(301) 664-6
Landline
Verizon Maryland, Inc.
-
(301) 664-7
Landline
Verizon Maryland, Inc.
-
(301) 664-8
Landline
Verizon Maryland, Inc.
-
(301) 664-9
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 666-0
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 666-1
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 666-2
Landline
Onvoy, LLC - MD
2017/11/14
(301) 666-3
Landline
Teleport Communications America - ID - LLC
-
(301) 666-4
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 666-5
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 666-6
Landline
Core Communications, Inc.- MD
2012/08/02
(301) 666-7
Landline
Centurylink Communications, LLC LA
2014/03/05
(301) 666-8
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 666-9
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 669
Landline
Verizon Maryland, Inc.
-
(301) 670
Landline
Verizon Maryland, Inc.
-
(301) 674
Wireless
Sprint Spectrum, L.P.
-
(301) 675
Wireless
Omnipoint Communications Cap Operations, LLC
-
(301) 677
Landline
Teleport Communications America - ID - LLC
-
Landline
Teleport Communications America - ID - LLC
-
(301) 679-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 679-1
Landline
Onvoy, LLC - MD
2008/05/21
(301) 679-2
Landline
Mcimetro Access Transmission Services LLC
2008/12/17
(301) 679-3
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/30
(301) 679-4
Landline
Teleport Communications America - ID - LLC
-
(301) 679-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/07/16
(301) 679-6
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 679-7
Landline
Onvoy, LLC - MD
2012/09/12
(301) 679-8
Wireless
T-mobile USA, Inc.
2013/07/02
(301) 679-9
Wireless
T-mobile USA, Inc.
2013/05/23
(301) 680
Landline
Verizon Maryland, Inc.
-
(301) 681
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 683-0
Landline
Teleport Communications America - ID - LLC
-
(301) 683-1
Landline
Teleport Communications America - ID - LLC
-
(301) 683-2
Landline
Teleport Communications America - ID - LLC
-
(301) 683-3
Landline
Teleport Communications America - ID - LLC
-
(301) 683-4
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(301) 683-5
Landline
Onvoy, LLC - MD
2014/10/09
(301) 683-6
Landline
Teleport Communications America - ID - LLC
-
(301) 683-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/19
(301) 683-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/19
(301) 683-9
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/09
Landline
Verizon Maryland, Inc.
-
(301) 686-0
Landline
Verizon Maryland, Inc.
-
(301) 686-1
Landline
Verizon Maryland, Inc.
-
(301) 686-2
Landline
Verizon Maryland, Inc.
2005/09/20
(301) 686-3
Landline
Mcimetro Access Transmission Services LLC
2008/09/12
(301) 686-4
Wireless
Omnipoint Communications Cap Operations, LLC
2008/09/12
(301) 686-5
Landline
Onvoy, LLC - MD
2016/03/29
(301) 686-6
Landline
Global Crossing Local Services, Inc. - KY
2009/11/02
(301) 686-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 686-8
Landline
Xo Maryland, LLC
2009/07/29
(301) 686-9
Landline
Verizon Maryland, Inc.
-
(301) 688
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 692-0
Landline
Teleport Communications America - ID - LLC
-
(301) 692-1
Landline
Teleport Communications America - ID - LLC
-
(301) 692-2
Landline
Teleport Communications America - ID - LLC
-
(301) 692-3
Landline
Teleport Communications America - ID - LLC
-
(301) 692-4
Landline
Teleport Communications America - ID - LLC
-
(301) 692-5
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 692-6
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 692-7
Landline
Centurylink Communications, LLC LA
2013/08/05
(301) 692-8
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 692-9
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 699
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
Landline
Bandwidth.com CLEC, LLC - MD
-
(301) 701-0
Wireless
T-mobile USA, Inc.
2018/03/15
(301) 701-1
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 701-2
Landline
Onvoy, LLC - MD
2020/11/04
(301) 701-3
Landline
Onvoy, LLC - MD
2020/11/04
(301) 701-4
Landline
Onvoy, LLC - MD
2020/11/04
(301) 701-5
Landline
Onvoy, LLC - MD
2020/11/04
(301) 701-6
Landline
Vonage America LLC
2020/05/08
(301) 701-7
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 701-8
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 701-9
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 702
Landline
Verizon Maryland, Inc.
-
(301) 704
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 706
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 713
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 715-0
Landline
Local Access LLC - MD
2019/03/28
(301) 715-1
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 715-2
Landline
Teleport Communications America - ID - LLC
-
(301) 715-3
Landline
Level 3 Communications, LLC - AK
2009/09/29
(301) 715-4
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 715-5
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 715-8
Landline
Peerless Network of Maryland, LLC
2016/10/26
(301) 715-9
Landline
Local Access LLC - MD
2019/03/28
(301) 716
Landline
Verizon Maryland, Inc.
-
(301) 717
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 718
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 719-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 719-1
Landline
Teleport Communications America - ID - LLC
-
(301) 719-2
Landline
Onvoy, LLC - MD
2020/03/31
(301) 719-3
Landline
Onvoy, LLC - MD
2020/03/31
(301) 719-4
Wireless
Onvoy Spectrum, LLC
2021/04/22
(301) 719-5
Landline
Peerless Network of Maryland, LLC
2020/03/17
(301) 719-6
Landline
Core Communications, Inc.- MD
2019/04/05
(301) 719-7
Landline
Core Communications, Inc.- MD
2019/04/05
(301) 719-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 719-9
Landline
Core Communications, Inc.- MD
2019/04/05
(301) 721
Landline
Verizon Maryland, Inc.
-
(301) 727
Landline
Baltimore-washington Telephone (Bwt)
-
(301) 728
Wireless
Omnipoint Communications Cap Operations, LLC
-
(301) 731
Landline
Verizon Maryland, Inc.
-
(301) 734
Landline
Verizon Maryland, Inc.
-
(301) 735
Landline
Verizon Maryland, Inc.
-
(301) 736
Landline
Verizon Maryland, Inc.
-
(301) 738
Landline
Verizon Maryland, Inc.
-
(301) 742
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Teleport Communications America - ID - LLC
-
(301) 747-0
Landline
Peerless Network of Maryland, LLC
2015/05/13
(301) 747-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(301) 747-2
Landline
Local Access LLC - MD
2016/05/03
(301) 747-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/11/03
(301) 747-4
Landline
Comcast IP Phone, LLC
2015/09/03
(301) 747-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(301) 747-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 747-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 747-8
Wireless
Omnipoint Communications Cap Operations, LLC
2011/01/10
(301) 747-9
Landline
Teleport Communications America - ID - LLC
-
(301) 749
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 753-0
Landline
Verizon Maryland, Inc.
-
(301) 753-1
Landline
Verizon Maryland, Inc.
-
(301) 753-2
Landline
Verizon Maryland, Inc.
-
(301) 753-3
Landline
Onvoy, LLC - MD
2020/11/04
(301) 753-4
Landline
Verizon Maryland, Inc.
-
(301) 753-5
Landline
Verizon Maryland, Inc.
-
(301) 753-6
Landline
Verizon Maryland, Inc.
-
(301) 753-7
Landline
Comcast IP Phone, LLC
2017/03/15
(301) 753-8
Landline
Onvoy, LLC - MD
2020/11/04
(301) 753-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 754-0
Landline
Verizon Maryland, Inc.
-
(301) 754-1
Landline
Verizon Maryland, Inc.
-
(301) 754-2
Landline
Verizon Maryland, Inc.
-
(301) 754-3
Landline
Verizon Maryland, Inc.
-
(301) 754-4
Landline
Verizon Maryland, Inc.
-
(301) 754-5
Landline
Verizon Maryland, Inc.
-
(301) 754-6
Landline
Level 3 Communications, LLC - AK
2014/09/29
(301) 754-7
Landline
Verizon Maryland, Inc.
-
(301) 754-8
Landline
Verizon Maryland, Inc.
-
(301) 754-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 755-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 755-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 755-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 755-3
Wireless
Omnipoint Communications Cap Operations, LLC
2003/09/09
(301) 755-4
Wireless
Omnipoint Communications Cap Operations, LLC
2003/08/25
(301) 755-5
Landline
Comcast IP Phone, LLC
2008/06/20
(301) 755-6
Landline
Comcast IP Phone, LLC
2008/06/20
(301) 755-7
Wireless
Omnipoint Communications Cap Operations, LLC
2003/07/09
(301) 755-8
Wireless
Omnipoint Communications Cap Operations, LLC
2007/09/13
(301) 755-9
Landline
Level 3 Communications, LLC - AK
2007/10/16
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 756-0
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 756-1
Landline
Telnyx LLC
2017/03/02
(301) 756-2
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 756-3
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 756-4
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 756-5
Landline
Onvoy, LLC - MD
2020/03/31
(301) 756-6
Wireless
T-mobile USA, Inc.
2017/07/11
(301) 756-7
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 756-8
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 756-9
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 758
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Level 3 Communications, LLC - AK
2002/02/27
(301) 760-0
Wireless
Sprint Spectrum, L.P.
2005/12/06
(301) 760-1
Landline
Verizon Maryland, Inc.
2004/06/10
(301) 760-2
Landline
Level 3 Communications, LLC - AK
2007/06/21
(301) 760-3
Landline
Level 3 Communications, LLC - AK
2005/02/05
(301) 760-4
Landline
Level 3 Communications, LLC - AK
-
(301) 760-5
Landline
Verizon Maryland, Inc.
2004/07/29
(301) 760-6
Wireless
Sprint Spectrum, L.P.
2005/12/06
(301) 760-7
Landline
Level 3 Communications, LLC - AK
2005/02/05
(301) 760-8
Wireless
Sprint Spectrum, L.P.
2005/08/31
(301) 760-9
Wireless
Sprint Spectrum, L.P.
2005/08/31
Landline
Level 3 Communications, LLC - AK
2002/02/27
(301) 761-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 761-1
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 761-2
Landline
Level 3 Communications, LLC - AK
2014/03/26
(301) 761-3
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 761-4
Landline
Level 3 Communications, LLC - AK
-
(301) 761-5
Landline
Level 3 Communications, LLC - AK
2014/01/28
(301) 761-6
Landline
Level 3 Communications, LLC - AK
2014/10/29
(301) 761-7
Landline
Level 3 Communications, LLC - AK
2014/09/29
(301) 761-9
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 762
Landline
Verizon Maryland, Inc.
-
(301) 763
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 765-0
Landline
Verizon Maryland, Inc.
-
(301) 765-1
Landline
Verizon Maryland, Inc.
-
(301) 765-2
Landline
Verizon Maryland, Inc.
-
(301) 765-3
Landline
Verizon Maryland, Inc.
-
(301) 765-4
Wireless
Omnipoint Communications Cap Operations, LLC
2008/10/16
(301) 765-5
Landline
Verizon Maryland, Inc.
-
(301) 765-6
Landline
Verizon Maryland, Inc.
-
(301) 765-7
Landline
Verizon Maryland, Inc.
-
(301) 765-8
Landline
Verizon Maryland, Inc.
-
(301) 765-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 767-0
Landline
Verizon Maryland, Inc.
-
(301) 767-1
Landline
Verizon Maryland, Inc.
-
(301) 767-2
Landline
Verizon Maryland, Inc.
-
(301) 767-3
Landline
Verizon Maryland, Inc.
-
(301) 767-4
Landline
Verizon Maryland, Inc.
-
(301) 767-5
Wireless
Cellco Partnership DBA Verizon Wireless
2006/12/15
(301) 767-6
Wireless
Cellco Partnership DBA Verizon Wireless
2007/03/22
(301) 767-7
Wireless
Cellco Partnership DBA Verizon Wireless
2007/03/22
(301) 767-8
Landline
Verizon Maryland, Inc.
-
(301) 767-9
Landline
Verizon Maryland, Inc.
-
Landline
Level 3 Communications, LLC - AK
2002/02/27
(301) 768-0
Wireless
Omnipoint Communications Cap Operations, LLC
2004/07/19
(301) 768-1
Wireless
Omnipoint Communications Cap Operations, LLC
2003/12/03
(301) 768-2
Wireless
Omnipoint Communications Cap Operations, LLC
2004/05/28
(301) 768-3
Wireless
Omnipoint Communications Cap Operations, LLC
2004/07/15
(301) 768-4
Landline
Level 3 Communications, LLC - AK
-
(301) 768-5
Wireless
Omnipoint Communications Cap Operations, LLC
2003/12/16
(301) 768-6
Wireless
Omnipoint Communications Cap Operations, LLC
2004/08/09
(301) 768-7
Wireless
Omnipoint Communications Cap Operations, LLC
2004/01/13
(301) 768-8
Wireless
Omnipoint Communications Cap Operations, LLC
2004/01/13
(301) 768-9
Wireless
Omnipoint Communications Cap Operations, LLC
2004/05/28
(301) 770
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 771-0
Landline
Onvoy, LLC - MD
2014/08/06
(301) 771-1
Wireless
Cellco Partnership DBA Verizon Wireless
2015/04/15
(301) 771-2
Landline
Verizon Maryland, Inc.
-
(301) 771-3
Landline
Verizon Maryland, Inc.
-
(301) 771-4
Landline
Verizon Maryland, Inc.
-
(301) 771-5
Landline
Verizon Maryland, Inc.
-
(301) 771-6
Landline
Verizon Maryland, Inc.
-
(301) 771-7
Landline
Verizon Maryland, Inc.
-
(301) 771-8
Landline
Verizon Maryland, Inc.
-
(301) 771-9
Landline
Local Access LLC - MD
2016/05/02
(301) 772
Landline
Verizon Maryland, Inc.
-
(301) 773
Landline
Verizon Maryland, Inc.
-
(301) 775
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 778-0
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/13
(301) 778-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 778-2
Landline
Onvoy, LLC - MD
2008/05/21
(301) 778-3
Landline
Ymax Communications Corp. - MD
2008/09/24
(301) 778-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(301) 778-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/06/18
(301) 778-6
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/07
(301) 778-7
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/24
(301) 778-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(301) 778-9
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/13
(301) 779
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 780-0
Landline
Verizon Maryland, Inc.
-
(301) 780-1
Landline
Verizon Maryland, Inc.
-
(301) 780-2
Landline
Verizon Maryland, Inc.
-
(301) 780-3
Landline
Verizon Maryland, Inc.
-
(301) 780-4
Landline
Onvoy, LLC - MD
2017/06/29
(301) 780-5
Landline
Verizon Maryland, Inc.
-
(301) 780-6
Landline
Verizon Maryland, Inc.
-
(301) 780-7
Landline
Verizon Maryland, Inc.
-
(301) 780-8
Landline
Verizon Maryland, Inc.
-
(301) 780-9
Landline
Verizon Maryland, Inc.
-
(301) 785
Wireless
Cellco Partnership DBA Verizon Wireless
-
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-1
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-2
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-3
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-4
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-5
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-6
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-7
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-8
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 787-9
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
Landline
Core Communications, Inc.- MD
2002/08/13
(301) 789-0
Landline
Core Communications, Inc.- MD
2002/08/30
(301) 789-1
Landline
Paetec Communications, Inc. - CA
2005/01/26
(301) 789-2
Landline
Paetec Communications, Inc. - CA
2005/01/26
(301) 789-3
Wireless
Cellco Partnership DBA Verizon Wireless
2008/02/05
(301) 789-4
Wireless
Cellco Partnership DBA Verizon Wireless
2007/10/26
(301) 789-5
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/09
(301) 789-6
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/09
(301) 789-7
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/09
(301) 789-8
Wireless
Cellco Partnership DBA Verizon Wireless
2007/10/26
(301) 789-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/12/20
(301) 792
Wireless
Omnipoint Communications Cap Operations, LLC
-
(301) 793
Wireless
Omnipoint Communications Cap Operations, LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 794-0
Landline
Verizon Maryland, Inc.
-
(301) 794-1
Landline
Verizon Maryland, Inc.
-
(301) 794-2
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 794-3
Landline
Verizon Maryland, Inc.
-
(301) 794-4
Landline
Verizon Maryland, Inc.
-
(301) 794-5
Landline
Verizon Maryland, Inc.
-
(301) 794-6
Landline
Verizon Maryland, Inc.
-
(301) 794-7
Landline
Verizon Maryland, Inc.
-
(301) 794-8
Landline
Verizon Maryland, Inc.
-
(301) 794-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 795-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 795-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 795-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 795-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 795-4
Landline
Mcimetro Access Transmission Services LLC
2008/01/29
(301) 795-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/10/16
(301) 795-6
Landline
Mcimetro Access Transmission Services LLC
-
(301) 795-7
Landline
Mcimetro Access Transmission Services LLC
-
(301) 795-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/10/16
(301) 795-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 796
Landline
Verizon Maryland, Inc.
2003/06/30
Prefix
Type
Location
Carrier
Assigned
(301) 801
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 802
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 803-0
Wireless
Sprint Spectrum, L.P.
2006/07/17
(301) 803-1
Landline
AT&T - Local
-
(301) 803-2
Landline
AT&T - Local
-
(301) 803-3
Landline
AT&T - Local
-
(301) 803-4
Landline
Verizon Maryland, Inc.
-
(301) 803-5
Landline
Quantum Telecommunications, Inc. - MD
2003/10/23
(301) 803-6
Landline
AT&T - Local
-
(301) 803-7
Landline
Verizon Maryland, Inc.
-
(301) 803-8
Wireless
Omnipoint Communications Cap Operations, LLC
2006/04/11
(301) 803-9
Wireless
Sprint Spectrum, L.P.
2006/07/17
(301) 805
Landline
Verizon Maryland, Inc.
-
(301) 806
Wireless
Sprint Spectrum, L.P.
-
(301) 807
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 808
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 809-0
Landline
Verizon Maryland, Inc.
-
(301) 809-1
Landline
Verizon Maryland, Inc.
-
(301) 809-2
Landline
Verizon Maryland, Inc.
-
(301) 809-3
Landline
Verizon Maryland, Inc.
-
(301) 809-4
Landline
Verizon Maryland, Inc.
-
(301) 809-5
Landline
Verizon Maryland, Inc.
-
(301) 809-6
Landline
Verizon Maryland, Inc.
-
(301) 809-7
Wireless
T-mobile USA, Inc.
2019/05/24
(301) 809-8
Landline
Verizon Maryland, Inc.
-
(301) 809-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 812-0
Landline
Verizon Maryland, Inc.
-
(301) 812-1
Landline
Verizon Maryland, Inc.
-
(301) 812-2
Landline
Verizon Maryland, Inc.
-
(301) 812-3
Landline
Onvoy, LLC - MD
2015/08/19
(301) 812-4
Landline
Onvoy, LLC - MD
2012/09/13
(301) 812-5
Landline
Ctc Communications Corp. - MD
2013/08/16
(301) 812-6
Landline
Ymax Communications Corp. - MD
2013/11/14
(301) 812-7
Landline
Ymax Communications Corp. - MD
2010/09/22
(301) 812-8
Landline
Baltimore-washington Telephone (Bwt)
2015/05/27
(301) 812-9
Landline
Atx Telecommunications Services, Ltd
2004/01/08
(301) 813
Landline
Baltimore-washington Telephone (Bwt)
-
(301) 814
Wireless
New Cingular Wireless PCS, LLC
-
(301) 816
Landline
Verizon Maryland, Inc.
-
(301) 817
Landline
Verizon Maryland, Inc.
-
(301) 819
Landline
Verizon Maryland, Inc.
-
Landline
AT&T - Local
-
(301) 822-0
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 822-1
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 822-2
Landline
Onvoy, LLC - MD
2016/01/21
(301) 822-3
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 822-4
Landline
Comcast IP Phone, LLC
2013/09/09
(301) 822-5
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 822-6
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 822-7
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 822-8
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 822-9
Landline
AT&T - Local
-
Landline
AT&T - Local
-
(301) 823-0
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 823-1
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 823-2
Landline
Teleport Communications America - ID - LLC
2008/09/11
(301) 823-3
Landline
Ctc Communications Corp. - MD
2012/11/09
(301) 823-4
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 823-5
Landline
Vonage America LLC
2020/05/08
(301) 823-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 823-7
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 823-8
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(301) 823-9
Landline
AT&T - Local
-
Landline
AT&T - Local
-
(301) 825-0
Landline
AT&T - Local
-
(301) 825-1
Wireless
T-mobile USA, Inc.
2013/07/02
(301) 825-2
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/20
(301) 825-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/20
(301) 825-4
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/20
(301) 825-5
Landline
Level 3 Communications, LLC - AK
2006/11/28
(301) 825-6
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/20
(301) 825-7
Landline
Verizon Maryland, Inc.
2006/11/09
(301) 825-8
Landline
Level 3 Communications, LLC - AK
2006/11/28
(301) 825-9
Landline
Level 3 Communications, LLC - AK
2006/11/28
(301) 827
Landline
Verizon Maryland, Inc.
-
Landline
AT&T - Local
-
(301) 828-0
Wireless
Sprint Spectrum, L.P.
2005/08/31
(301) 828-1
Landline
Ctc Communications Corp. - MD
2005/10/13
(301) 828-2
Landline
AT&T - Local
-
(301) 828-3
Landline
AT&T - Local
-
(301) 828-4
Landline
Verizon Maryland, Inc.
2005/03/25
(301) 828-5
Wireless
Sprint Spectrum, L.P.
2006/07/17
(301) 828-6
Wireless
Sprint Spectrum, L.P.
2007/06/07
(301) 828-7
Wireless
Omnipoint Communications Cap Operations, LLC
2006/03/13
(301) 828-8
Wireless
New Cingular Wireless PCS, LLC
2008/02/28
(301) 828-9
Landline
AT&T - Local
-
Landline
AT&T - Local
-
(301) 830-0
Wireless
Cellco Partnership DBA Verizon Wireless
2005/07/07
(301) 830-1
Wireless
Cellco Partnership DBA Verizon Wireless
2005/07/07
(301) 830-2
Wireless
Cellco Partnership DBA Verizon Wireless
2005/07/07
(301) 830-3
Wireless
Cellco Partnership DBA Verizon Wireless
2005/08/02
(301) 830-4
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 830-5
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 830-6
Landline
Level 3 Communications, LLC - AK
2007/08/01
(301) 830-7
Landline
Paetec Communications, Inc. - CA
2005/12/13
(301) 830-8
Landline
Level 3 Communications, LLC - AK
2005/02/05
(301) 830-9
Landline
AT&T - Local
-
Landline
AT&T - Local
-
(301) 832-0
Wireless
Cellco Partnership DBA Verizon Wireless
2008/05/06
(301) 832-1
Wireless
Cellco Partnership DBA Verizon Wireless
2008/06/03
(301) 832-2
Wireless
Cellco Partnership DBA Verizon Wireless
2008/02/05
(301) 832-3
Landline
Ctc Communications Corp. - MD
2006/05/25
(301) 832-4
Wireless
Cellco Partnership DBA Verizon Wireless
2008/08/04
(301) 832-5
Wireless
Cellco Partnership DBA Verizon Wireless
2008/09/03
(301) 832-6
Wireless
Cellco Partnership DBA Verizon Wireless
2008/10/03
(301) 832-7
Wireless
Cellco Partnership DBA Verizon Wireless
2009/08/05
(301) 832-8
Wireless
Cellco Partnership DBA Verizon Wireless
2009/05/04
(301) 832-9
Landline
AT&T - Local
-
Landline
Teleport Communications America - ID - LLC
-
(301) 833-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 833-1
Landline
Teleport Communications America - ID - LLC
2008/06/17
(301) 833-2
Landline
Teleport Communications America - ID - LLC
2008/06/17
(301) 833-3
Landline
Teleport Communications America - ID - LLC
2008/06/17
(301) 833-4
Landline
Teleport Communications America - ID - LLC
2008/06/17
(301) 833-5
Landline
Teleport Communications America - ID - LLC
2003/05/08
(301) 833-6
Landline
Teleport Communications America - ID - LLC
2003/05/08
(301) 833-7
Landline
Teleport Communications America - ID - LLC
2003/05/08
(301) 833-8
Landline
Teleport Communications America - ID - LLC
2003/05/08
(301) 833-9
Landline
Teleport Communications America - ID - LLC
2003/05/08
Landline
Verizon Maryland, Inc.
-
(301) 836-0
Landline
Local Access LLC - MD
2013/08/12
(301) 836-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/22
(301) 836-2
Wireless
Cellco Partnership DBA Verizon Wireless
2012/10/04
(301) 836-3
Landline
Xo Maryland, LLC
2011/01/13
(301) 836-4
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/12/10
(301) 836-5
Landline
Ymax Communications Corp. - MD
2010/08/23
(301) 836-6
Landline
Ymax Communications Corp. - MD
2010/08/23
(301) 836-7
Landline
Verizon Maryland, Inc.
-
(301) 836-8
Wireless
Omnipoint Communications Cap Operations, LLC
2015/06/23
(301) 836-9
Landline
Atx Telecommunications Services, Ltd
2004/02/27
Landline
Mcimetro Access Transmission Services LLC
-
(301) 837-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 837-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 837-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 837-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 837-4
Landline
Mcimetro Access Transmission Services LLC
2018/10/19
(301) 837-5
Landline
Mcimetro Access Transmission Services LLC
-
(301) 837-6
Landline
Mcimetro Access Transmission Services LLC
2018/10/19
(301) 837-7
Landline
Mcimetro Access Transmission Services LLC
2018/10/19
(301) 837-8
Landline
Mcimetro Access Transmission Services LLC
2015/03/05
(301) 837-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 838-0
Landline
Verizon Maryland, Inc.
-
(301) 838-1
Wireless
Cellco Partnership DBA Verizon Wireless
2021/08/04
(301) 838-2
Landline
Verizon Maryland, Inc.
-
(301) 838-3
Landline
Verizon Maryland, Inc.
-
(301) 838-4
Landline
Verizon Maryland, Inc.
-
(301) 838-5
Landline
Verizon Maryland, Inc.
-
(301) 838-6
Landline
Verizon Maryland, Inc.
-
(301) 838-7
Landline
Verizon Maryland, Inc.
-
(301) 838-8
Landline
Verizon Maryland, Inc.
-
(301) 838-9
Landline
Verizon Maryland, Inc.
-
(301) 839
Landline
Verizon Maryland, Inc.
-
(301) 840
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 841-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 841-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 841-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 841-3
Landline
Mcimetro Access Transmission Services LLC
2007/09/19
(301) 841-4
Landline
Paetec Communications, Inc. - CA
2007/04/17
(301) 841-5
Wireless
Omnipoint Communications Cap Operations, LLC
2006/08/14
(301) 841-6
Landline
Level 3 Communications, LLC - AK
2007/06/21
(301) 841-7
Landline
Level 3 Communications, LLC - AK
2005/07/13
(301) 841-8
Landline
Level 3 Communications, LLC - AK
2007/07/17
(301) 841-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 843
Landline
Verizon Maryland, Inc.
-
Wireless
Sprint Spectrum, L.P.
2011/10/04
(301) 844-0
Wireless
Sprint Spectrum, L.P.
2011/10/05
(301) 844-1
Wireless
New Cingular Wireless PCS, LLC
2014/09/02
(301) 844-2
Wireless
Sprint Spectrum, L.P.
2012/11/23
(301) 844-3
Wireless
Sprint Spectrum, L.P.
2012/11/23
(301) 844-4
Wireless
Sprint Spectrum, L.P.
2012/11/23
(301) 844-5
Landline
Comcast IP Phone, LLC
2014/06/27
(301) 844-6
Landline
Level 3 Communications, LLC - AK
2014/05/28
(301) 844-7
Landline
Centurylink Communications, LLC LA
2013/08/05
(301) 844-8
Wireless
New Cingular Wireless PCS, LLC
2014/09/02
(301) 844-9
Wireless
Sprint Spectrum, L.P.
2012/11/23
Landline
Verizon Maryland, Inc.
-
(301) 847-0
Landline
Verizon Maryland, Inc.
-
(301) 847-1
Landline
Verizon Maryland, Inc.
-
(301) 847-2
Landline
Verizon Maryland, Inc.
-
(301) 847-3
Landline
Verizon Maryland, Inc.
-
(301) 847-4
Landline
Verizon Maryland, Inc.
-
(301) 847-5
Landline
Verizon Maryland, Inc.
-
(301) 847-6
Landline
Verizon Maryland, Inc.
-
(301) 847-7
Landline
Verizon Maryland, Inc.
-
(301) 847-8
Landline
Verizon Maryland, Inc.
-
(301) 847-9
Landline
Comcast IP Phone, LLC
2014/09/23
Landline
Level 3 Communications, LLC - AK
-
(301) 850-0
Landline
Level 3 Communications, LLC - AK
2006/03/30
(301) 850-1
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 850-2
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 850-3
Landline
Level 3 Communications, LLC - AK
2008/01/23
(301) 850-4
Landline
Level 3 Communications, LLC - AK
2002/05/23
(301) 850-5
Landline
Level 3 Communications, LLC - AK
2014/09/10
(301) 850-6
Landline
Level 3 Communications, LLC - AK
2012/03/28
(301) 850-7
Landline
Level 3 Communications, LLC - AK
2006/07/21
(301) 850-8
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/05
(301) 850-9
Landline
Atx Telecommunications Services, Ltd
2004/02/27
Landline
Verizon Maryland, Inc.
-
(301) 851-0
Landline
Onvoy, LLC - MD
2014/08/04
(301) 851-1
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
(301) 851-2
Landline
Verizon Maryland, Inc.
-
(301) 851-3
Landline
Verizon Maryland, Inc.
-
(301) 851-4
Landline
Verizon Maryland, Inc.
-
(301) 851-5
Landline
Comcast IP Phone, LLC
2014/12/02
(301) 851-6
Landline
Onvoy, LLC - MD
2016/01/28
(301) 851-7
Landline
Verizon Maryland, Inc.
-
(301) 851-8
Landline
Verizon Maryland, Inc.
-
(301) 851-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
Landline
Verizon Maryland, Inc.
-
(301) 852-0
Wireless
Cellco Partnership DBA Verizon Wireless
2010/01/07
(301) 852-1
Wireless
Cellco Partnership DBA Verizon Wireless
2010/05/05
(301) 852-2
Landline
Verizon Maryland, Inc.
-
(301) 852-3
Wireless
Cellco Partnership DBA Verizon Wireless
2011/04/04
(301) 852-4
Wireless
Omnipoint Communications Cap Operations, LLC
2008/09/12
(301) 852-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 852-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 852-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 852-8
Wireless
Cellco Partnership DBA Verizon Wireless
2011/01/04
(301) 852-9
Wireless
Cellco Partnership DBA Verizon Wireless
2011/01/04
(301) 853
Landline
Verizon Maryland, Inc.
-
(301) 855
Landline
Verizon Maryland, Inc.
-
(301) 856
Landline
Verizon Maryland, Inc.
-
(301) 858
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 860-0
Landline
Verizon Maryland, Inc.
-
(301) 860-1
Landline
Verizon Maryland, Inc.
-
(301) 860-2
Wireless
T-mobile USA, Inc.
2016/12/01
(301) 860-3
Landline
Verizon Maryland, Inc.
-
(301) 860-4
Landline
Verizon Maryland, Inc.
-
(301) 860-5
Landline
Verizon Maryland, Inc.
-
(301) 860-6
Landline
Verizon Maryland, Inc.
-
(301) 860-7
Wireless
T-mobile USA, Inc.
2015/01/12
(301) 860-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 860-9
Wireless
T-mobile USA, Inc.
2018/03/23
(301) 864
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 867-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 867-1
Landline
Teleport Communications America - ID - LLC
2020/07/14
(301) 867-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 867-3
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 867-4
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 867-5
Landline
Onvoy, LLC - MD
2016/02/17
(301) 867-6
Landline
Mcimetro Access Transmission Services LLC
-
(301) 867-7
Landline
Onvoy, LLC - MD
2016/02/17
(301) 867-8
Landline
Mcimetro Access Transmission Services LLC
-
(301) 867-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 868
Landline
Verizon Maryland, Inc.
-
(301) 870
Landline
Verizon Maryland, Inc.
-
(301) 871
Landline
Verizon Maryland, Inc.
-
(301) 873
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 877
Landline
Verizon Maryland, Inc.
-
(301) 879
Landline
Verizon Maryland, Inc.
-
(301) 881
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 883-0
Landline
Verizon Maryland, Inc.
-
(301) 883-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/31
(301) 883-2
Landline
Verizon Maryland, Inc.
-
(301) 883-3
Landline
Verizon Maryland, Inc.
-
(301) 883-4
Landline
Verizon Maryland, Inc.
-
(301) 883-5
Landline
Verizon Maryland, Inc.
-
(301) 883-6
Landline
Verizon Maryland, Inc.
-
(301) 883-7
Landline
Verizon Maryland, Inc.
-
(301) 883-8
Landline
Verizon Maryland, Inc.
-
(301) 883-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 886-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 886-1
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 886-2
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 886-3
Landline
Baltimore-washington Telephone (Bwt)
2006/04/12
(301) 886-4
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 886-5
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 886-6
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 886-7
Landline
Core Communications, Inc.- MD
2019/03/28
(301) 886-8
Landline
Atx Telecommunications Services, Ltd
2003/03/12
(301) 886-9
Landline
Core Communications, Inc.- MD
2019/03/28
Landline
Verizon Maryland, Inc.
-
(301) 887-0
Landline
Verizon Maryland, Inc.
-
(301) 887-1
Landline
Verizon Maryland, Inc.
-
(301) 887-2
Landline
Verizon Maryland, Inc.
-
(301) 887-3
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 887-4
Landline
Verizon Maryland, Inc.
-
(301) 887-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 887-6
Landline
Verizon Maryland, Inc.
-
(301) 887-7
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/18
(301) 887-8
Landline
Verizon Maryland, Inc.
-
(301) 887-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 888-0
Landline
Onvoy, LLC - MD
2017/07/07
(301) 888-1
Landline
Verizon Maryland, Inc.
-
(301) 888-2
Landline
Verizon Maryland, Inc.
-
(301) 888-3
Landline
Onvoy, LLC - MD
2017/07/18
(301) 888-4
Landline
Onvoy, LLC - MD
2017/07/18
(301) 888-5
Landline
Onvoy, LLC - MD
2014/10/10
(301) 888-6
Landline
Onvoy, LLC - MD
2014/10/10
(301) 888-7
Landline
Onvoy, LLC - MD
2017/07/18
(301) 888-8
Landline
Peerless Network of Maryland, LLC
2012/03/09
(301) 888-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 889-0
Landline
Verizon Maryland, Inc.
-
(301) 889-1
Landline
Hd Carrier LLC
2016/08/12
(301) 889-3
Landline
Hd Carrier LLC
2016/08/12
(301) 889-4
Landline
Hd Carrier LLC
2016/08/12
(301) 889-5
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 889-6
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 889-7
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 889-8
Landline
Onvoy, LLC - MD
2016/03/11
(301) 889-9
Landline
Onvoy, LLC - MD
2016/03/11
(301) 890
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 891-0
Landline
Verizon Maryland, Inc.
-
(301) 891-1
Landline
Verizon Maryland, Inc.
-
(301) 891-2
Landline
Verizon Maryland, Inc.
-
(301) 891-3
Landline
Verizon Maryland, Inc.
-
(301) 891-4
Landline
Verizon Maryland, Inc.
-
(301) 891-5
Landline
Verizon Maryland, Inc.
-
(301) 891-6
Landline
Verizon Maryland, Inc.
-
(301) 891-7
Landline
Verizon Maryland, Inc.
-
(301) 891-8
Landline
Verizon Maryland, Inc.
-
(301) 891-9
Wireless
New Cingular Wireless PCS, LLC
2014/10/27
Landline
Verizon Maryland, Inc.
2005/03/11
(301) 892-0
Wireless
Cellco Partnership DBA Verizon Wireless
2011/05/04
(301) 892-1
Wireless
Cellco Partnership DBA Verizon Wireless
2011/08/08
(301) 892-2
Wireless
Cellco Partnership DBA Verizon Wireless
2011/06/15
(301) 892-3
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 892-4
Landline
Us Lec of Maryland, Inc.
2010/09/10
(301) 892-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 892-6
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/23
(301) 892-7
Landline
Ymax Communications Corp. - MD
2010/08/20
(301) 892-8
Landline
Ymax Communications Corp. - MD
2010/08/20
(301) 892-9
Landline
Verizon Maryland, Inc.
2005/03/15
Landline
Verizon Maryland, Inc.
-
(301) 893-0
Landline
Verizon Maryland, Inc.
-
(301) 893-1
Landline
Verizon Maryland, Inc.
-
(301) 893-2
Landline
Verizon Maryland, Inc.
-
(301) 893-3
Landline
Verizon Maryland, Inc.
-
(301) 893-4
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 893-5
Wireless
Omnipoint Communications Cap Operations, LLC
2016/07/18
(301) 893-6
Landline
Verizon Maryland, Inc.
-
(301) 893-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 893-8
Landline
Verizon Maryland, Inc.
-
(301) 893-9
Landline
Terra Nova Telecom Inc.
2021/05/13
(301) 894
Landline
Verizon Maryland, Inc.
-
(301) 896
Landline
Verizon Maryland, Inc.
-
(301) 897
Landline
Verizon Maryland, Inc.
-
(301) 899
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
Landline
Onvoy, LLC - MD
2015/02/18
(301) 900-0
Landline
Onvoy, LLC - MD
2015/02/18
(301) 900-1
Landline
Onvoy, LLC - MD
2015/06/26
(301) 900-2
Landline
Onvoy, LLC - MD
2015/06/26
(301) 900-3
Landline
Onvoy, LLC - MD
2015/06/26
(301) 900-4
Landline
Onvoy, LLC - MD
2015/06/26
(301) 900-5
Landline
Onvoy, LLC - MD
2015/05/28
(301) 900-6
Landline
Onvoy, LLC - MD
2015/06/26
(301) 900-7
Landline
Onvoy, LLC - MD
2015/06/26
(301) 900-8
Landline
Onvoy, LLC - MD
2015/06/26
(301) 900-9
Landline
Onvoy, LLC - MD
2015/02/18
Landline
Verizon Maryland, Inc.
-
(301) 901-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 901-1
Landline
Verizon Maryland, Inc.
-
(301) 901-2
Landline
Verizon Maryland, Inc.
-
(301) 901-3
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 901-4
Landline
Verizon Maryland, Inc.
-
(301) 901-5
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 901-6
Landline
Verizon Maryland, Inc.
-
(301) 901-7
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 901-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 901-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 902-0
Landline
Onvoy, LLC - MD
2020/11/04
(301) 902-1
Landline
Verizon Maryland, Inc.
-
(301) 902-2
Landline
Verizon Maryland, Inc.
-
(301) 902-3
Landline
Verizon Maryland, Inc.
-
(301) 902-4
Landline
Mcimetro Access Transmission Services LLC
-
(301) 902-7
Landline
Comcast IP Phone, LLC
2019/06/10
(301) 902-8
Landline
Verizon Maryland, Inc.
-
(301) 902-9
Landline
Verizon Maryland, Inc.
-
(301) 903
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 905-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 905-1
Wireless
Sprint Spectrum, L.P.
2011/08/09
(301) 905-2
Wireless
Omnipoint Communications Cap Operations, LLC
2003/05/14
(301) 905-3
Landline
Verizon Maryland, Inc.
-
(301) 905-4
Landline
Verizon Maryland, Inc.
-
(301) 905-5
Landline
Verizon Maryland, Inc.
-
(301) 905-6
Wireless
Omnipoint Communications Cap Operations, LLC
2003/08/25
(301) 905-7
Wireless
Omnipoint Communications Cap Operations, LLC
2003/08/25
(301) 905-8
Wireless
Omnipoint Communications Cap Operations, LLC
2003/06/17
(301) 905-9
Landline
Onvoy, LLC - MD
2014/08/04
(301) 906
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 907-0
Landline
Verizon Maryland, Inc.
-
(301) 907-1
Wireless
Omnipoint Communications Cap Operations, LLC
2018/01/09
(301) 907-2
Landline
Verizon Maryland, Inc.
-
(301) 907-3
Landline
Verizon Maryland, Inc.
-
(301) 907-4
Landline
Verizon Maryland, Inc.
-
(301) 907-5
Landline
Verizon Maryland, Inc.
-
(301) 907-6
Landline
Verizon Maryland, Inc.
-
(301) 907-7
Landline
Verizon Maryland, Inc.
-
(301) 907-8
Landline
Verizon Maryland, Inc.
-
(301) 907-9
Landline
Verizon Maryland, Inc.
-
(301) 908
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 909-0
Landline
Comcast IP Phone, LLC
2013/06/06
(301) 909-1
Landline
Comcast IP Phone, LLC
2015/10/27
(301) 909-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 909-3
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 909-4
Landline
Bandwidth.com CLEC, LLC - MD
2011/03/24
(301) 909-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 909-6
Landline
Mcimetro Access Transmission Services LLC
-
(301) 909-7
Landline
Mcimetro Access Transmission Services LLC
-
(301) 909-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 909-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 910
Wireless
New Cingular Wireless PCS, LLC
-
(301) 912
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 913-0
Landline
Verizon Maryland, Inc.
-
(301) 913-1
Landline
Mcimetro Access Transmission Services LLC
2017/11/13
(301) 913-2
Landline
Verizon Maryland, Inc.
-
(301) 913-3
Landline
Mcimetro Access Transmission Services LLC
2017/11/13
(301) 913-4
Wireless
Omnipoint Communications Cap Operations, LLC
2017/10/30
(301) 913-5
Landline
Verizon Maryland, Inc.
-
(301) 913-6
Landline
Mcimetro Access Transmission Services LLC
2017/11/13
(301) 913-7
Landline
Mcimetro Access Transmission Services LLC
2017/11/13
(301) 913-8
Landline
Mcimetro Access Transmission Services LLC
2017/11/13
(301) 913-9
Landline
Verizon Maryland, Inc.
-
Landline
Starpower Communications, LLC - DC
-
(301) 915-0
Landline
Starpower Communications, LLC - DC
-
(301) 915-1
Landline
Starpower Communications, LLC - DC
-
(301) 915-2
Landline
Starpower Communications, LLC - DC
-
(301) 915-3
Landline
Starpower Communications, LLC - DC
-
(301) 915-4
Wireless
Sprint Spectrum, L.P.
2006/05/19
(301) 915-5
Wireless
Sprint Spectrum, L.P.
2006/05/19
(301) 915-6
Wireless
Sprint Spectrum, L.P.
2006/05/19
(301) 915-7
Wireless
Sprint Spectrum, L.P.
2006/05/19
(301) 915-8
Landline
Starpower Communications, LLC - DC
-
(301) 915-9
Landline
Atx Telecommunications Services, Ltd
2004/02/27
Landline
Starpower Communications, LLC - DC
-
(301) 917-0
Landline
Starpower Communications, LLC - DC
-
(301) 917-1
Landline
Starpower Communications, LLC - DC
-
(301) 917-2
Landline
Paetec Communications, Inc. - CA
2007/05/03
(301) 917-3
Landline
Level 3 Communications, LLC - AK
2007/11/21
(301) 917-4
Wireless
Omnipoint Communications Cap Operations, LLC
2008/01/08
(301) 917-5
Wireless
Omnipoint Communications Cap Operations, LLC
2007/09/13
(301) 917-6
Landline
Atx Telecommunications Services, Ltd
2005/06/10
(301) 917-7
Wireless
Omnipoint Communications Cap Operations, LLC
2008/01/08
(301) 917-8
Landline
Starpower Communications, LLC - DC
-
(301) 917-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Landline
Verizon Maryland, Inc.
-
(301) 918-0
Landline
Verizon Maryland, Inc.
-
(301) 918-1
Landline
Verizon Maryland, Inc.
-
(301) 918-2
Landline
Verizon Maryland, Inc.
-
(301) 918-3
Landline
Verizon Maryland, Inc.
-
(301) 918-4
Landline
Verizon Maryland, Inc.
-
(301) 918-5
Landline
Onvoy, LLC - MD
2014/10/09
(301) 918-6
Landline
Verizon Maryland, Inc.
-
(301) 918-7
Landline
Verizon Maryland, Inc.
-
(301) 918-8
Landline
Verizon Maryland, Inc.
-
(301) 918-9
Landline
Verizon Maryland, Inc.
-
(301) 919
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Starpower Communications, LLC - DC
-
(301) 920-0
Landline
Starpower Communications, LLC - DC
-
(301) 920-1
Landline
Starpower Communications, LLC - DC
-
(301) 920-2
Landline
Starpower Communications, LLC - DC
-
(301) 920-3
Landline
Starpower Communications, LLC - DC
-
(301) 920-4
Wireless
Omnipoint Communications Cap Operations, LLC
2006/01/06
(301) 920-5
Landline
Ctc Communications Corp. - MD
2008/11/17
(301) 920-6
Wireless
Omnipoint Communications Cap Operations, LLC
2006/01/06
(301) 920-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 920-8
Landline
Starpower Communications, LLC - DC
-
(301) 920-9
Landline
Atx Telecommunications Services, Ltd
2004/02/10
Landline
Verizon Maryland, Inc.
-
(301) 921-0
Landline
Verizon Maryland, Inc.
-
(301) 921-1
Landline
Verizon Maryland, Inc.
-
(301) 921-2
Landline
Verizon Maryland, Inc.
-
(301) 921-3
Landline
Verizon Maryland, Inc.
-
(301) 921-4
Landline
Verizon Maryland, Inc.
-
(301) 921-5
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/04
(301) 921-6
Wireless
New Cingular Wireless PCS, LLC
2014/10/27
(301) 921-7
Landline
Verizon Maryland, Inc.
-
(301) 921-8
Landline
Verizon Maryland, Inc.
-
(301) 921-9
Landline
Verizon Maryland, Inc.
-
(301) 922
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Bandwidth.com CLEC, LLC - MD
-
(301) 923-0
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 923-1
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 923-2
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 923-3
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 923-4
Landline
Onvoy, LLC - MD
2020/09/17
(301) 923-5
Wireless
T-mobile USA, Inc.
2020/09/11
(301) 923-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 923-7
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 923-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 923-9
Landline
Onvoy, LLC - MD
2020/09/17
(301) 924
Landline
Verizon Maryland, Inc.
-
(301) 925
Landline
Verizon Maryland, Inc.
-
(301) 927
Landline
Verizon Maryland, Inc.
-
(301) 928
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 929
Landline
Verizon Maryland, Inc.
-
(301) 930
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 931-0
Landline
Verizon Maryland, Inc.
-
(301) 931-1
Landline
Verizon Maryland, Inc.
-
(301) 931-2
Landline
Verizon Maryland, Inc.
-
(301) 931-3
Landline
Verizon Maryland, Inc.
-
(301) 931-4
Landline
Verizon Maryland, Inc.
-
(301) 931-5
Landline
Broadview Networks, Inc. - DC
2014/05/12
(301) 931-6
Landline
Verizon Maryland, Inc.
-
(301) 931-7
Landline
Verizon Maryland, Inc.
-
(301) 931-8
Landline
Verizon Maryland, Inc.
-
(301) 931-9
Landline
Verizon Maryland, Inc.
-
(301) 933
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 935-0
Landline
Verizon Maryland, Inc.
-
(301) 935-1
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 935-2
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 935-3
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 935-4
Landline
Verizon Maryland, Inc.
-
(301) 935-5
Landline
Verizon Maryland, Inc.
-
(301) 935-6
Landline
Verizon Maryland, Inc.
-
(301) 935-7
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 935-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 935-9
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 937
Landline
Verizon Maryland, Inc.
-
(301) 938
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 939-0
Landline
Peerless Network of Maryland, LLC
2020/03/23
(301) 939-1
Landline
Verizon Maryland, Inc.
-
(301) 939-2
Landline
Verizon Maryland, Inc.
-
(301) 939-3
Landline
Verizon Maryland, Inc.
-
(301) 939-4
Landline
Verizon Maryland, Inc.
-
(301) 939-5
Landline
Verizon Maryland, Inc.
-
(301) 939-6
Landline
Verizon Maryland, Inc.
-
(301) 939-7
Landline
Verizon Maryland, Inc.
-
(301) 939-8
Landline
Core Communications, Inc.- MD
2018/10/11
(301) 939-9
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 940
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 941-0
Landline
Verizon Maryland, Inc.
-
(301) 941-1
Landline
Verizon Maryland, Inc.
-
(301) 941-2
Landline
Verizon Maryland, Inc.
-
(301) 941-3
Landline
Bandwidth.com CLEC, LLC - MD
2019/08/12
(301) 941-4
Landline
Bandwidth.com CLEC, LLC - MD
2019/04/08
(301) 941-5
Unknown
Barr Tell USA, Inc.
2018/04/26
(301) 941-6
Landline
Teleport Communications America - ID - LLC
2017/09/06
(301) 941-7
Landline
Bandwidth.com CLEC, LLC - MD
2018/09/21
(301) 941-8
Landline
Verizon Maryland, Inc.
-
(301) 941-9
Landline
Verizon Maryland, Inc.
-
(301) 942
Landline
Verizon Maryland, Inc.
-
(301) 943
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 945-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 945-1
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 945-2
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 945-3
Landline
Mcimetro Access Transmission Services LLC
2015/05/06
(301) 945-4
Landline
Mcimetro Access Transmission Services LLC
-
(301) 945-5
Landline
Mcimetro Access Transmission Services LLC
2016/01/13
(301) 945-6
Landline
Mcimetro Access Transmission Services LLC
2016/08/22
(301) 945-7
Landline
Onvoy, LLC - MD
2014/10/10
(301) 945-8
Landline
Onvoy, LLC - MD
2014/10/10
(301) 945-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 946
Landline
Verizon Maryland, Inc.
-
(301) 948
Landline
Verizon Maryland, Inc.
-
(301) 949
Landline
Verizon Maryland, Inc.
-
(301) 951
Landline
Verizon Maryland, Inc.
-
(301) 952
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 953-0
Landline
Verizon Maryland, Inc.
-
(301) 953-1
Landline
Verizon Maryland, Inc.
-
(301) 953-2
Landline
Verizon Maryland, Inc.
-
(301) 953-3
Landline
Verizon Maryland, Inc.
-
(301) 953-6
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 953-7
Landline
Verizon Maryland, Inc.
-
(301) 953-8
Landline
Verizon Maryland, Inc.
-
(301) 953-9
Landline
Verizon Maryland, Inc.
-
(301) 954
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 955-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 955-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 955-2
Landline
Paetec Communications, Inc. - CA
2010/11/02
(301) 955-3
Landline
Mcimetro Access Transmission Services LLC
-
(301) 955-4
Landline
Paetec Communications, Inc. - CA
2010/11/02
(301) 955-5
Landline
Paetec Communications, Inc. - CA
2010/11/02
(301) 955-6
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/18
(301) 955-7
Landline
Paetec Communications, Inc. - CA
2010/11/02
(301) 955-8
Landline
Paetec Communications, Inc. - CA
2010/11/02
(301) 955-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 960-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 960-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 960-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 960-3
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 960-4
Landline
Paetec Communications, Inc. - CA
2005/01/26
(301) 960-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(301) 960-6
Wireless
Sprint Spectrum, L.P.
2011/08/09
(301) 960-7
Landline
Onvoy, LLC - MD
2020/11/04
(301) 960-8
Landline
Bandwidth.com CLEC, LLC - MD
2012/05/14
(301) 960-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 961
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 962-0
Landline
Verizon Maryland, Inc.
-
(301) 962-1
Landline
Verizon Maryland, Inc.
-
(301) 962-2
Landline
Peerless Network of Maryland, LLC
2019/02/07
(301) 962-3
Landline
Verizon Maryland, Inc.
-
(301) 962-4
Landline
Verizon Maryland, Inc.
-
(301) 962-5
Landline
Verizon Maryland, Inc.
-
(301) 962-6
Landline
Verizon Maryland, Inc.
-
(301) 962-7
Landline
Verizon Maryland, Inc.
-
(301) 962-8
Landline
Verizon Maryland, Inc.
-
(301) 962-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 965-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/22
(301) 965-1
Landline
Onvoy, LLC - MD
2008/05/21
(301) 965-2
Landline
Level 3 Communications, LLC - AK
2007/03/28
(301) 965-3
Landline
Level 3 Communications, LLC - AK
2007/03/28
(301) 965-4
Landline
Verizon Maryland, Inc.
2007/03/28
(301) 965-5
Landline
Level 3 Communications, LLC - AK
2007/03/28
(301) 965-6
Landline
Onvoy, LLC - MD
2016/11/18
(301) 965-7
Landline
Ctc Communications Corp. - MD
2010/07/16
(301) 965-8
Landline
Peerless Network of Maryland, LLC
2013/10/01
(301) 965-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 966-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 966-1
Landline
Verizon Maryland, Inc.
2012/11/13
(301) 966-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 966-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/21
(301) 966-4
Landline
Verizon Maryland, Inc.
2012/11/13
(301) 966-5
Landline
Verizon Maryland, Inc.
2012/11/13
(301) 966-6
Landline
Mcimetro Access Transmission Services LLC
-
(301) 966-7
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/07
(301) 966-8
Landline
Verizon Maryland, Inc.
2012/11/13
(301) 966-9
Landline
Mcimetro Access Transmission Services LLC
-
(301) 967
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(301) 968-0
Landline
Mcimetro Access Transmission Services LLC
-
(301) 968-1
Landline
Mcimetro Access Transmission Services LLC
-
(301) 968-2
Landline
Mcimetro Access Transmission Services LLC
-
(301) 968-3
Landline
Broadview Networks, Inc. - DC
2009/06/12
(301) 968-4
Landline
Mcimetro Access Transmission Services LLC
-
(301) 968-5
Wireless
Sprint Spectrum, L.P.
2007/08/27
(301) 968-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(301) 968-7
Landline
Ymax Communications Corp. - MD
2010/08/20
(301) 968-8
Landline
Level 3 Telecom of Maryland, LLC - MD
2010/06/28
(301) 968-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 970-0
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 970-1
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 970-2
Landline
Verizon Maryland, Inc.
-
(301) 970-3
Landline
Onvoy, LLC - MD
2019/02/06
(301) 970-4
Landline
Onvoy, LLC - MD
2019/02/06
(301) 970-5
Landline
Verizon Maryland, Inc.
-
(301) 970-7
Landline
Terra Nova Telecom Inc.
2020/12/28
(301) 970-8
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 970-9
Landline
Bandwidth.com CLEC, LLC - MD
2011/10/14
Landline
Starpower Communications, LLC - DC
-
(301) 971-0
Landline
Peerless Network of Maryland, LLC
2012/08/22
(301) 971-1
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(301) 971-2
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/20
(301) 971-3
Landline
Broadview Networks, Inc. - MD
2011/05/16
(301) 971-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/09/20
(301) 971-5
Landline
Verizon Maryland, Inc.
2013/01/28
(301) 971-6
Landline
Verizon Maryland, Inc.
2013/01/28
(301) 971-7
Wireless
Omnipoint Communications Cap Operations, LLC
2015/01/02
(301) 971-8
Landline
Starpower Communications, LLC - DC
-
(301) 971-9
Landline
Local Access LLC - MD
2013/08/12
Landline
Bandwidth.com CLEC, LLC - MD
-
(301) 973-0
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 973-1
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 973-2
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 973-3
Landline
Peerless Network of Maryland, LLC
2018/10/22
(301) 973-4
Landline
Hd Carrier LLC
2020/04/08
(301) 973-5
Landline
Onvoy, LLC - MD
2020/09/17
(301) 973-6
Landline
Peerless Network of Maryland, LLC
2020/03/23
(301) 973-7
Landline
Core Communications, Inc.- MD
2019/04/12
(301) 973-8
Landline
Core Communications, Inc.- MD
2018/10/12
(301) 973-9
Landline
Core Communications, Inc.- MD
2018/10/12
Landline
Verizon Maryland, Inc.
-
(301) 975-0
Landline
Verizon Maryland, Inc.
-
(301) 975-1
Landline
Verizon Maryland, Inc.
-
(301) 975-2
Landline
Verizon Maryland, Inc.
-
(301) 975-3
Landline
Verizon Maryland, Inc.
-
(301) 975-4
Landline
Verizon Maryland, Inc.
-
(301) 975-5
Landline
Verizon Maryland, Inc.
-
(301) 975-6
Landline
Verizon Maryland, Inc.
-
(301) 975-7
Wireless
T-mobile USA, Inc.
2013/05/23
(301) 975-8
Landline
Verizon Maryland, Inc.
-
(301) 975-9
Landline
Verizon Maryland, Inc.
-
(301) 976
Landline
Baltimore-washington Telephone (Bwt)
-
Landline
Verizon Maryland, Inc.
-
(301) 978-0
Landline
Core Communications, Inc.- MD
2004/02/26
(301) 978-1
Wireless
Omnipoint Communications Cap Operations, LLC
2007/05/08
(301) 978-2
Landline
Verizon Maryland, Inc.
-
(301) 978-3
Landline
Paetec Communications, Inc. - CA
2013/01/14
(301) 978-4
Landline
Verizon Maryland, Inc.
-
(301) 978-5
Landline
Verizon Maryland, Inc.
-
(301) 978-6
Wireless
Omnipoint Communications Cap Operations, LLC
2007/09/13
(301) 978-7
Landline
Comcast IP Phone, LLC
2014/08/22
(301) 978-8
Landline
Verizon Maryland, Inc.
-
(301) 978-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 979-0
Wireless
Omnipoint Communications Cap Operations, LLC
2008/07/21
(301) 979-1
Wireless
Omnipoint Communications Cap Operations, LLC
2008/03/24
(301) 979-2
Wireless
Omnipoint Communications Cap Operations, LLC
2008/03/24
(301) 979-3
Wireless
T-mobile USA, Inc.
2013/07/02
(301) 979-4
Landline
Verizon Maryland, Inc.
-
(301) 979-5
Wireless
Omnipoint Communications Cap Operations, LLC
2008/07/21
(301) 979-6
Landline
Paetec Communications, Inc. - CA
2018/09/25
(301) 979-7
Landline
Level 3 Communications, LLC - AK
2006/11/28
(301) 979-8
Wireless
Omnipoint Communications Cap Operations, LLC
2013/06/26
(301) 979-9
Landline
Level 3 Communications, LLC - AK
2006/11/28
(301) 980
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 981
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 982
Landline
Verizon Maryland, Inc.
-
(301) 983
Landline
Verizon Maryland, Inc.
-
(301) 984
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 985-0
Landline
Verizon Maryland, Inc.
-
(301) 985-1
Landline
Verizon Maryland, Inc.
-
(301) 985-2
Landline
Bandwidth.com CLEC, LLC - MD
2014/12/03
(301) 985-3
Landline
Verizon Maryland, Inc.
-
(301) 985-4
Landline
Verizon Maryland, Inc.
-
(301) 985-5
Landline
Verizon Maryland, Inc.
-
(301) 985-6
Landline
Verizon Maryland, Inc.
-
(301) 985-7
Landline
Verizon Maryland, Inc.
-
(301) 985-8
Landline
Verizon Maryland, Inc.
-
(301) 985-9
Landline
Verizon Maryland, Inc.
-
(301) 986
Landline
Verizon Maryland, Inc.
-
(301) 989
Landline
Verizon Maryland, Inc.
-
(301) 993
Landline
Verizon Maryland, Inc.
-
(301) 996
Wireless
Sprint Spectrum, L.P.
-
(301) 998
Landline
Verizon Maryland, Inc.
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Area Codes by Number

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