Columbia, Maryland Area Codes

410 443 667
Map of Columbia Local time Prefixes

Map of Columbia

Local time – 1 timezone

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Atlantic timezone

Prefixes – 57 codes

Prefix
Type
Location
Carrier
Assigned
(410) 290
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
(410) 309
Landline
Verizon Maryland, Inc.
-
(410) 312
Landline
Verizon Maryland, Inc.
-
(410) 381
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
(410) 423
Landline
Teleport Communications America - ID - LLC
-
(410) 447
Wireless
USA Mobility Wireless, Inc.
-
Prefix
Type
Location
Carrier
Assigned
(410) 531
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
(410) 707
Wireless
Cellco Partnership DBA Verizon Wireless
-
(410) 715
Landline
Verizon Maryland, Inc.
-
(410) 730
Landline
Verizon Maryland, Inc.
-
(410) 740
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 772-0
Landline
Verizon Maryland, Inc.
-
(410) 772-1
Landline
Verizon Maryland, Inc.
-
(410) 772-2
Landline
Verizon Maryland, Inc.
-
(410) 772-3
Landline
Verizon Maryland, Inc.
-
(410) 772-4
Wireless
T-mobile USA, Inc.
2015/06/09
(410) 772-5
Landline
Verizon Maryland, Inc.
-
(410) 772-6
Landline
Verizon Maryland, Inc.
-
(410) 772-7
Landline
Verizon Maryland, Inc.
-
(410) 772-8
Landline
Verizon Maryland, Inc.
-
(410) 772-9
Landline
Verizon Maryland, Inc.
-
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-0
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-1
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-2
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-3
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-4
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-5
Landline
Baltimore-washington Telephone (Bwt)
2006/04/17
(410) 794-6
Wireless
Cellco Partnership DBA Verizon Wireless
2007/05/02
(410) 794-7
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-8
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 794-9
Landline
Level 3 Telecom of Maryland, LLC - MD
-
Prefix
Type
Location
Carrier
Assigned
(410) 872
Landline
Verizon Maryland, Inc.
-
(410) 884
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
(410) 910
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Verizon Maryland, Inc.
-
(410) 953-0
Landline
Verizon Maryland, Inc.
-
(410) 953-1
Landline
Verizon Maryland, Inc.
-
(410) 953-2
Landline
Verizon Maryland, Inc.
-
(410) 953-3
Landline
Verizon Maryland, Inc.
-
(410) 953-4
Landline
Verizon Maryland, Inc.
-
(410) 953-5
Landline
Verizon Maryland, Inc.
-
(410) 953-6
Landline
Verizon Maryland, Inc.
-
(410) 953-7
Landline
Verizon Maryland, Inc.
-
(410) 953-8
Landline
Verizon Maryland, Inc.
-
(410) 953-9
Wireless
Omnipoint Communications Cap Operations, LLC
2010/08/26
(410) 964
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 992-0
Landline
Verizon Maryland, Inc.
-
(410) 992-1
Landline
Verizon Maryland, Inc.
-
(410) 992-2
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/29
(410) 992-3
Landline
Verizon Maryland, Inc.
-
(410) 992-4
Landline
Verizon Maryland, Inc.
-
(410) 992-5
Landline
Verizon Maryland, Inc.
-
(410) 992-6
Landline
Verizon Maryland, Inc.
-
(410) 992-7
Landline
Verizon Maryland, Inc.
-
(410) 992-8
Landline
Verizon Maryland, Inc.
-
(410) 992-9
Landline
Verizon Maryland, Inc.
-
(410) 997
Landline
Verizon Maryland, Inc.
-
Prefix
Type
Location
Carrier
Assigned
Landline
Verizon Maryland, Inc.
-
(443) 259-0
Landline
Verizon Maryland, Inc.
-
(443) 259-1
Landline
Verizon Maryland, Inc.
-
(443) 259-2
Landline
Verizon Maryland, Inc.
-
(443) 259-3
Landline
Verizon Maryland, Inc.
-
(443) 259-4
Landline
Verizon Maryland, Inc.
-
(443) 259-5
Landline
Us Lec of Maryland, Inc.
2013/08/23
(443) 259-6
Landline
Verizon Maryland, Inc.
-
(443) 259-7
Landline
Verizon Maryland, Inc.
-
(443) 259-8
Landline
Verizon Maryland, Inc.
-
(443) 259-9
Landline
Atx Telecommunications Services, Ltd
2003/02/03
Landline
Xo Maryland, LLC
-
(443) 276-0
Landline
Xo Maryland, LLC
-
(443) 276-1
Landline
Xo Maryland, LLC
-
(443) 276-2
Landline
Xo Maryland, LLC
-
(443) 276-3
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2003/10/17
(443) 276-4
Landline
Xo Maryland, LLC
-
(443) 276-5
Landline
Xo Maryland, LLC
-
(443) 276-6
Landline
Xo Maryland, LLC
-
(443) 276-7
Landline
Xo Maryland, LLC
-
(443) 276-8
Landline
Core Communications, Inc.- MD
2004/03/01
(443) 276-9
Landline
Xo Maryland, LLC
-
(443) 283
Landline
Paetec Communications, Inc. - CA
-
Landline
Verizon Maryland, Inc.
-
(443) 285-0
Landline
Verizon Maryland, Inc.
-
(443) 285-1
Wireless
Cellco Partnership DBA Verizon Wireless
2004/04/05
(443) 285-2
Wireless
Cellco Partnership DBA Verizon Wireless
2004/09/07
(443) 285-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/08/05
(443) 285-4
Landline
Verizon Maryland, Inc.
-
(443) 285-5
Landline
Verizon Maryland, Inc.
-
(443) 285-6
Landline
Xo Maryland, LLC
-
(443) 285-7
Landline
Verizon Maryland, Inc.
-
(443) 285-8
Landline
Verizon Maryland, Inc.
-
(443) 285-9
Wireless
Cellco Partnership DBA Verizon Wireless
2004/09/07
Prefix
Type
Location
Carrier
Assigned
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 319-0
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 319-1
Landline
Bandwidth.com CLEC, LLC - MD
2020/07/14
(443) 319-2
Wireless
T-mobile USA, Inc.
2015/12/09
(443) 319-3
Wireless
Omnipoint Communications Cap Operations, LLC
2008/05/19
(443) 319-4
Landline
Lightwave Communications, LLC - MD
2005/06/08
(443) 319-5
Landline
Comcast IP Phone, LLC
2005/02/10
(443) 319-6
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 319-7
Wireless
T-mobile USA, Inc.
2015/12/09
(443) 319-8
Landline
Xo Maryland, LLC
2010/11/09
(443) 319-9
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
Landline
Verizon Maryland, Inc.
-
(443) 367-0
Landline
Verizon Maryland, Inc.
-
(443) 367-1
Wireless
Sprint Spectrum, L.P.
2005/06/02
(443) 367-2
Landline
Verizon Maryland, Inc.
-
(443) 367-3
Landline
Verizon Maryland, Inc.
-
(443) 367-4
Landline
Us Lec of Maryland, Inc.
2007/05/25
(443) 367-5
Landline
Verizon Maryland, Inc.
-
(443) 367-6
Landline
Core Communications, Inc.- MD
2019/03/14
(443) 367-7
Landline
Verizon Maryland, Inc.
-
(443) 367-8
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/29
(443) 367-9
Landline
Level 3 Communications, LLC - AK
2011/03/10
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 393-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 393-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 393-2
Landline
Level 3 Communications, LLC - AK
2005/08/15
(443) 393-3
Landline
Level 3 Communications, LLC - AK
2005/08/15
(443) 393-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 393-5
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 393-6
Landline
Level 3 Communications, LLC - AK
2006/04/13
(443) 393-7
Landline
Level 3 Communications, LLC - AK
2011/03/10
(443) 393-8
Landline
Level 3 Communications, LLC - AK
-
(443) 393-9
Landline
Level 3 Communications, LLC - AK
-
Prefix
Type
Location
Carrier
Assigned
Landline
Xo Maryland, LLC
2001/05/18
(443) 430-0
Landline
Xo Maryland, LLC
-
(443) 430-1
Landline
Local Access LLC - MD
2016/09/15
(443) 430-2
Landline
Xo Maryland, LLC
2005/07/19
(443) 430-3
Landline
Xo Maryland, LLC
-
(443) 430-4
Wireless
New Cingular Wireless PCS, LLC
2016/09/14
(443) 430-5
Wireless
New Cingular Wireless PCS, LLC
2016/09/14
(443) 430-6
Landline
Xo Maryland, LLC
2005/07/19
(443) 430-7
Landline
Mcimetro Access Transmission Services LLC
2008/05/19
(443) 430-8
Landline
Mcimetro Access Transmission Services LLC
2006/02/28
(443) 430-9
Landline
Xo Maryland, LLC
-
Landline
Level 3 Communications, LLC - AK
-
(443) 472-0
Wireless
Cellco Partnership DBA Verizon Wireless
2004/05/07
(443) 472-1
Wireless
Cellco Partnership DBA Verizon Wireless
2003/11/06
(443) 472-2
Wireless
Cellco Partnership DBA Verizon Wireless
2003/10/03
(443) 472-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/07/08
(443) 472-4
Landline
Level 3 Communications, LLC - AK
-
(443) 472-5
Wireless
Cellco Partnership DBA Verizon Wireless
2004/10/08
(443) 472-6
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(443) 472-7
Wireless
Cellco Partnership DBA Verizon Wireless
2004/02/03
(443) 472-8
Wireless
Cellco Partnership DBA Verizon Wireless
2004/12/06
(443) 472-9
Wireless
Cellco Partnership DBA Verizon Wireless
2005/10/07
Prefix
Type
Location
Carrier
Assigned
Landline
Verizon Maryland, Inc.
2008/12/16
(443) 518-0
Wireless
New Cingular Wireless PCS, LLC
2009/03/23
(443) 518-1
Landline
Verizon Maryland, Inc.
2008/12/18
(443) 518-2
Landline
Verizon Maryland, Inc.
2008/12/18
(443) 518-3
Landline
Verizon Maryland, Inc.
2008/12/18
(443) 518-4
Landline
Verizon Maryland, Inc.
2008/12/18
(443) 518-5
Landline
Verizon Maryland, Inc.
2008/12/18
(443) 518-6
Wireless
New Cingular Wireless PCS, LLC
2009/03/23
(443) 518-7
Landline
Allegiance Telecom of Maryland, Inc.
2010/03/09
(443) 518-8
Wireless
New Cingular Wireless PCS, LLC
2010/03/17
(443) 518-9
Wireless
New Cingular Wireless PCS, LLC
2009/03/23
Landline
Verizon Maryland, Inc.
-
(443) 535-0
Landline
Verizon Maryland, Inc.
-
(443) 535-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(443) 535-2
Wireless
Omnipoint Communications Cap Operations, LLC
2005/08/17
(443) 535-3
Wireless
Omnipoint Communications Cap Operations, LLC
2005/12/27
(443) 535-4
Landline
Mcimetro Access Transmission Services LLC
2006/05/03
(443) 535-5
Wireless
Omnipoint Communications Cap Operations, LLC
2007/01/10
(443) 535-6
Landline
Bandwidth.com CLEC, LLC - MD
2011/02/21
(443) 535-7
Wireless
Omnipoint Communications Cap Operations, LLC
2009/06/09
(443) 535-8
Landline
Verizon Maryland, Inc.
-
(443) 535-9
Landline
Verizon Maryland, Inc.
-
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 537-0
Wireless
Omnipoint Communications Cap Operations, LLC
2009/09/30
(443) 537-1
Landline
Level 3 Communications, LLC - AK
2009/09/25
(443) 537-2
Landline
Us Lec of Maryland, Inc.
2011/02/15
(443) 537-3
Wireless
Cellco Partnership DBA Verizon Wireless
2010/05/05
(443) 537-4
Landline
Level 3 Communications, LLC - AK
2009/05/26
(443) 537-5
Wireless
Cellco Partnership DBA Verizon Wireless
2010/06/02
(443) 537-6
Wireless
Cellco Partnership DBA Verizon Wireless
2010/06/02
(443) 537-7
Wireless
Cellco Partnership DBA Verizon Wireless
2010/06/02
(443) 537-8
Wireless
Cellco Partnership DBA Verizon Wireless
2010/06/02
(443) 537-9
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/29
(443) 538
Wireless
Omnipoint Communications Cap Operations, LLC
2001/06/20
Landline
Us Lec of Maryland, Inc.
-
(443) 539-0
Landline
Us Lec of Maryland, Inc.
-
(443) 539-1
Landline
Us Lec of Maryland, Inc.
-
(443) 539-2
Landline
Us Lec of Maryland, Inc.
-
(443) 539-3
Landline
Us Lec of Maryland, Inc.
-
(443) 539-4
Landline
Paetec Communications, Inc. - CA
2006/08/04
(443) 539-5
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 539-6
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/29
(443) 539-7
Landline
Level 3 Communications, LLC - AK
2010/01/25
(443) 539-8
Landline
Level 3 Communications, LLC - AK
2008/02/01
(443) 539-9
Landline
Us Lec of Maryland, Inc.
-
Landline
Comcast IP Phone, LLC
-
(443) 542-0
Landline
Comcast IP Phone, LLC
-
(443) 542-1
Wireless
Sprint Spectrum, L.P.
2004/10/27
(443) 542-2
Landline
Comcast IP Phone, LLC
-
(443) 542-3
Wireless
Sprint Spectrum, L.P.
2005/02/15
(443) 542-4
Landline
Verizon Maryland, Inc.
2004/11/24
(443) 542-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2004/06/01
(443) 542-6
Landline
Verizon Maryland, Inc.
2004/11/24
(443) 542-7
Wireless
Cellco Partnership DBA Verizon Wireless
2007/01/04
(443) 542-8
Wireless
Cellco Partnership DBA Verizon Wireless
2007/08/02
(443) 542-9
Landline
Comcast IP Phone, LLC
2007/01/09
Landline
Level 3 Communications, LLC - AK
2001/05/18
(443) 545-1
Landline
Level 3 Communications, LLC - AK
-
(443) 545-2
Landline
Level 3 Communications, LLC - AK
-
(443) 545-3
Landline
Level 3 Communications, LLC - AK
-
(443) 545-4
Wireless
Cellco Partnership DBA Verizon Wireless
2008/03/05
(443) 545-5
Landline
Comcast IP Phone, LLC
2006/05/08
(443) 545-6
Wireless
Cellco Partnership DBA Verizon Wireless
2008/07/03
(443) 545-7
Landline
Onvoy, LLC - MD
2016/02/03
(443) 545-8
Landline
Bandwidth.com CLEC, LLC - MD
2016/08/22
(443) 545-9
Wireless
Cellco Partnership DBA Verizon Wireless
2008/09/03
Landline
Verizon Maryland, Inc.
-
(443) 546-0
Wireless
Cellco Partnership DBA Verizon Wireless
2011/01/04
(443) 546-1
Landline
Verizon Maryland, Inc.
-
(443) 546-2
Landline
Mcimetro Access Transmission Services LLC
2007/07/31
(443) 546-3
Landline
Comcast IP Phone, LLC
2006/09/05
(443) 546-4
Landline
Comcast IP Phone, LLC
2006/09/05
(443) 546-5
Wireless
Omnipoint Communications Cap Operations, LLC
2010/06/11
(443) 546-6
Wireless
Cellco Partnership DBA Verizon Wireless
2010/06/10
(443) 546-7
Wireless
Cellco Partnership DBA Verizon Wireless
2010/07/02
(443) 546-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/09/22
(443) 546-9
Landline
Level 3 Communications, LLC - AK
2008/04/14
Landline
Ctc Communications Corp. - MD
-
(443) 583-0
Landline
Onvoy, LLC - MD
2016/02/03
(443) 583-1
Landline
Ctc Communications Corp. - MD
-
(443) 583-2
Landline
Quantum Telecommunications, Inc. - MD
2016/01/04
(443) 583-3
Landline
Bandwidth.com CLEC, LLC - MD
2014/03/03
(443) 583-4
Landline
Bandwidth.com CLEC, LLC - MD
2014/03/03
(443) 583-5
Landline
Onvoy, LLC - MD
2014/08/06
(443) 583-6
Wireless
T-mobile USA, Inc.
2015/05/05
(443) 583-7
Landline
Comcast IP Phone, LLC
2014/09/02
(443) 583-8
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(443) 583-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
Prefix
Type
Location
Carrier
Assigned
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/05/10
(443) 656-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 656-1
Wireless
Onvoy Spectrum, LLC
2021/04/23
(443) 656-2
Landline
Terra Nova Telecom Inc.
2020/12/30
(443) 656-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 656-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 656-5
Landline
Twilio International, Inc.
2020/11/25
(443) 656-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 656-7
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 656-8
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 656-9
Landline
Onvoy, LLC - MD
2021/06/15
Prefix
Type
Location
Carrier
Assigned
Landline
Us Lec of Maryland, Inc.
2008/03/05
(443) 718-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/20
(443) 718-1
Wireless
Cellco Partnership DBA Verizon Wireless
2009/06/03
(443) 718-2
Landline
Us Lec of Maryland, Inc.
2008/03/06
(443) 718-3
Landline
Us Lec of Maryland, Inc.
2008/03/06
(443) 718-4
Landline
Us Lec of Maryland, Inc.
2008/05/29
(443) 718-5
Landline
Us Lec of Maryland, Inc.
2008/05/29
(443) 718-6
Landline
Broadview Networks, Inc. - MD
2008/09/15
(443) 718-7
Wireless
Cellco Partnership DBA Verizon Wireless
2009/06/03
(443) 718-8
Wireless
Cellco Partnership DBA Verizon Wireless
2010/03/04
(443) 718-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
Landline
Mcimetro Access Transmission Services LLC
2011/03/29
(443) 741-0
Wireless
Omnipoint Communications Cap Operations, LLC
2011/07/11
(443) 741-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/20
(443) 741-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/22
(443) 741-3
Landline
Mcimetro Access Transmission Services LLC
2011/03/31
(443) 741-4
Landline
Mcimetro Access Transmission Services LLC
2012/04/16
(443) 741-5
Wireless
T-mobile USA, Inc.
2013/05/21
(443) 741-6
Wireless
T-mobile USA, Inc.
2013/05/21
(443) 741-7
Wireless
T-mobile USA, Inc.
2014/07/08
(443) 741-8
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 741-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 745
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Us Lec of Maryland, Inc.
2005/05/18
(443) 766-0
Wireless
Cellco Partnership DBA Verizon Wireless
2007/11/28
(443) 766-1
Landline
Us Lec of Maryland, Inc.
2005/05/19
(443) 766-2
Wireless
New Cingular Wireless PCS, LLC
2016/07/22
(443) 766-3
Wireless
New Cingular Wireless PCS, LLC
2016/07/22
(443) 766-4
Wireless
T-mobile USA, Inc.
2015/08/27
(443) 766-5
Wireless
T-mobile USA, Inc.
2015/08/05
(443) 766-6
Wireless
T-mobile USA, Inc.
2015/08/27
(443) 766-7
Landline
Us Lec of Maryland, Inc.
2006/06/19
(443) 766-8
Wireless
T-mobile USA, Inc.
2015/08/05
(443) 766-9
Wireless
Cellco Partnership DBA Verizon Wireless
2007/12/27
Wireless
New Cingular Wireless PCS, LLC
2018/11/19
(443) 774-0
Landline
Bandwidth.com CLEC, LLC - MD
2019/03/28
(443) 774-1
Landline
Bandwidth.com CLEC, LLC - MD
2019/03/28
(443) 774-2
Landline
Core Communications, Inc.- MD
2019/03/14
(443) 774-3
Landline
Core Communications, Inc.- MD
2019/03/14
(443) 774-4
Wireless
New Cingular Wireless PCS, LLC
2019/09/10
(443) 774-5
Wireless
New Cingular Wireless PCS, LLC
2019/06/20
(443) 774-6
Landline
Core Communications, Inc.- MD
2019/03/14
(443) 774-7
Landline
Core Communications, Inc.- MD
2019/03/14
(443) 774-8
Wireless
New Cingular Wireless PCS, LLC
2019/03/20
(443) 774-9
Wireless
New Cingular Wireless PCS, LLC
2018/11/20
Prefix
Type
Location
Carrier
Assigned
Wireless
Cellco Partnership DBA Verizon Wireless
2001/01/15
(443) 812-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-1
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-2
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-3
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-4
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-5
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-6
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-7
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 812-8
Wireless
Cellco Partnership DBA Verizon Wireless
2003/08/06
(443) 812-9
Wireless
Cellco Partnership DBA Verizon Wireless
2003/09/05
Landline
Level 3 Communications, LLC - AK
-
(443) 832-0
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/29
(443) 832-1
Landline
Us Lec of Maryland, Inc.
2009/10/14
(443) 832-2
Landline
Mcimetro Access Transmission Services LLC
2009/11/03
(443) 832-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/16
(443) 832-4
Landline
Level 3 Communications, LLC - AK
-
(443) 832-5
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/29
(443) 832-6
Landline
Level 3 Communications, LLC - AK
2013/06/27
(443) 832-7
Wireless
Cellco Partnership DBA Verizon Wireless
2010/10/06
(443) 832-8
Wireless
Cellco Partnership DBA Verizon Wireless
2011/07/05
(443) 832-9
Wireless
Cellco Partnership DBA Verizon Wireless
2011/07/05
Wireless
Sprint Spectrum, L.P.
2001/12/19
(443) 864-0
Wireless
Sprint Spectrum, L.P.
-
(443) 864-1
Wireless
Sprint Spectrum, L.P.
-
(443) 864-2
Wireless
Sprint Spectrum, L.P.
2003/03/17
(443) 864-3
Wireless
Sprint Spectrum, L.P.
2003/10/13
(443) 864-4
Landline
Comcast IP Phone, LLC
2007/09/20
(443) 864-5
Landline
Comcast IP Phone, LLC
2007/09/20
(443) 864-6
Wireless
Sprint Spectrum, L.P.
-
(443) 864-7
Wireless
Sprint Spectrum, L.P.
-
(443) 864-8
Wireless
Sprint Spectrum, L.P.
-
(443) 864-9
Wireless
Sprint Spectrum, L.P.
-
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 878-0
Wireless
Cellco Partnership DBA Verizon Wireless
2010/02/04
(443) 878-1
Landline
Ctc Communications Corp. - MD
2005/07/29
(443) 878-2
Wireless
Cellco Partnership DBA Verizon Wireless
2005/09/07
(443) 878-3
Wireless
Cellco Partnership DBA Verizon Wireless
2006/02/06
(443) 878-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/03/06
(443) 878-5
Wireless
Cellco Partnership DBA Verizon Wireless
2006/04/06
(443) 878-6
Wireless
Cellco Partnership DBA Verizon Wireless
2006/04/06
(443) 878-7
Wireless
Cellco Partnership DBA Verizon Wireless
2006/01/05
(443) 878-8
Wireless
Cellco Partnership DBA Verizon Wireless
2005/07/11
(443) 878-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/04/06
Landline
AT&T - Local
-
(443) 896-0
Landline
AT&T - Local
-
(443) 896-1
Landline
AT&T - Local
-
(443) 896-2
Landline
AT&T - Local
-
(443) 896-3
Wireless
Cellco Partnership DBA Verizon Wireless
2006/10/04
(443) 896-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/10/04
(443) 896-5
Landline
AT&T - Local
-
(443) 896-6
Wireless
Cellco Partnership DBA Verizon Wireless
2006/09/06
(443) 896-7
Wireless
Cellco Partnership DBA Verizon Wireless
2007/07/03
(443) 896-8
Wireless
Cellco Partnership DBA Verizon Wireless
2006/12/05
(443) 896-9
Landline
AT&T - Local
-
Prefix
Type
Location
Carrier
Assigned
Landline
Onvoy, LLC - MD
2011/10/07
(443) 917-0
Landline
Local Access LLC - MD
2013/08/12
(443) 917-1
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(443) 917-2
Landline
Comcast IP Phone, LLC
2013/01/17
(443) 917-3
Landline
Onvoy, LLC - MD
2012/02/06
(443) 917-4
Landline
Xo Maryland, LLC
2013/06/25
(443) 917-5
Landline
Xo Maryland, LLC
2013/06/25
(443) 917-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(443) 917-7
Landline
Centurylink Communications, LLC LA
2013/08/05
(443) 917-8
Wireless
Omnipoint Communications Cap Operations, LLC
2015/01/15
(443) 917-9
Wireless
Omnipoint Communications Cap Operations, LLC
2015/01/15
Wireless
Cellco Partnership DBA Verizon Wireless
2011/11/21
(443) 979-0
Wireless
Cellco Partnership DBA Verizon Wireless
2011/11/23
(443) 979-1
Wireless
T-mobile USA, Inc.
2013/07/02
(443) 979-2
Wireless
T-mobile USA, Inc.
2014/10/29
(443) 979-3
Wireless
Cellco Partnership DBA Verizon Wireless
2012/03/14
(443) 979-4
Wireless
T-mobile USA, Inc.
2014/12/05
(443) 979-5
Wireless
T-mobile USA, Inc.
2014/12/05
(443) 979-6
Wireless
T-mobile USA, Inc.
2015/02/10
(443) 979-7
Landline
Comcast IP Phone, LLC
2014/11/10
(443) 979-8
Landline
Onvoy, LLC - MD
2014/10/06
(443) 979-9
Landline
Onvoy, LLC - MD
2014/10/06
Prefix
Type
Location
Carrier
Assigned
Landline
Onvoy, LLC - MD
2015/12/18
(667) 200-0
Landline
Onvoy, LLC - MD
2015/12/22
(667) 200-1
Landline
Onvoy, LLC - MD
2016/03/29
(667) 200-2
Landline
Onvoy, LLC - MD
2016/03/29
(667) 200-3
Landline
Onvoy, LLC - MD
2017/05/22
(667) 200-4
Landline
Level 3 Communications, LLC - AK
2017/12/05
(667) 200-5
Landline
Comcast IP Phone, LLC
2016/03/31
(667) 200-6
Wireless
Omnipoint Communications Cap Operations, LLC
2016/05/18
(667) 200-7
Wireless
T-mobile USA, Inc.
2016/02/22
(667) 200-8
Wireless
T-mobile USA, Inc.
2016/02/22
(667) 200-9
Wireless
Omnipoint Communications Cap Operations, LLC
2016/05/18
Unknown
Barr Tell USA, Inc.
2016/11/22
(667) 240-0
Landline
Telnyx LLC
2017/03/02
(667) 240-1
Unknown
Barr Tell USA, Inc.
2016/11/23
(667) 240-2
Landline
Comcast IP Phone, LLC
2016/12/20
(667) 240-3
Wireless
New Cingular Wireless PCS, LLC
2017/01/13
(667) 240-4
Wireless
New Cingular Wireless PCS, LLC
2017/01/13
(667) 240-5
Wireless
New Cingular Wireless PCS, LLC
2017/05/01
(667) 240-6
Wireless
New Cingular Wireless PCS, LLC
2017/08/04
(667) 240-7
Wireless
New Cingular Wireless PCS, LLC
2018/03/26
(667) 240-8
Landline
Onvoy, LLC - MD
2018/04/30
(667) 240-9
Wireless
New Cingular Wireless PCS, LLC
2017/08/04
Landline
Vonage America LLC
2018/11/14
(667) 257-0
Landline
Vonage America LLC
2018/11/15
(667) 257-1
Landline
Vonage America LLC
2018/11/15
(667) 257-2
Landline
Vonage America LLC
2018/11/15
(667) 257-3
Landline
Vonage America LLC
2018/11/15
(667) 257-4
Landline
Vonage America LLC
2018/12/13
(667) 257-5
Landline
Radiantiq LLC
2021/03/23
(667) 257-6
Landline
Mcimetro Access Transmission Services LLC
2021/04/07
(667) 257-7
Wireless
New Cingular Wireless PCS, LLC
2019/11/14
(667) 257-8
Landline
Core Communications, Inc.- MD
2019/06/10
(667) 257-9
Landline
Core Communications, Inc.- MD
2019/06/10
Wireless
New Cingular Wireless PCS, LLC
2019/12/24
(667) 261-0
Wireless
New Cingular Wireless PCS, LLC
2020/02/12
(667) 261-1
Wireless
New Cingular Wireless PCS, LLC
2020/02/12
(667) 261-2
Wireless
New Cingular Wireless PCS, LLC
2020/02/12
(667) 261-3
Wireless
New Cingular Wireless PCS, LLC
2020/03/30
(667) 261-4
Wireless
New Cingular Wireless PCS, LLC
2020/03/30
(667) 261-5
Wireless
New Cingular Wireless PCS, LLC
2020/03/30
(667) 261-6
Landline
Onvoy, LLC - MD
2020/12/15
(667) 261-7
Landline
Onvoy, LLC - MD
2020/12/15
(667) 261-8
Landline
Peerless Network of Maryland, LLC
2020/05/26
(667) 261-9
Wireless
New Cingular Wireless PCS, LLC
2019/12/26
Prefix
Type
Location
Carrier
Assigned
Landline
Core Communications, Inc.- MD
2018/06/01
(667) 300-0
Landline
Core Communications, Inc.- MD
2018/06/05
(667) 300-1
Landline
Core Communications, Inc.- MD
2018/06/05
(667) 300-2
Landline
Vonage America LLC
2018/11/12
(667) 300-3
Landline
Core Communications, Inc.- MD
2018/06/05
(667) 300-4
Landline
Vonage America LLC
2018/11/12
(667) 300-5
Landline
Vonage America LLC
2018/11/12
(667) 300-6
Landline
Vonage America LLC
2018/11/12
(667) 300-7
Landline
Vonage America LLC
2018/11/12
(667) 300-8
Wireless
New Cingular Wireless PCS, LLC
2018/07/12
(667) 300-9
Wireless
New Cingular Wireless PCS, LLC
2018/07/12
Prefix
Type
Location
Carrier
Assigned
Landline
Teleport Communications America - ID - LLC
2015/11/04
(667) 786-0
Wireless
T-mobile USA, Inc.
2016/02/22
(667) 786-1
Wireless
New Cingular Wireless PCS, LLC
2015/12/09
(667) 786-2
Wireless
New Cingular Wireless PCS, LLC
2015/12/09
(667) 786-3
Wireless
New Cingular Wireless PCS, LLC
2015/12/09
(667) 786-4
Landline
Level 3 Communications, LLC - AK
2016/01/12
(667) 786-5
Landline
Teleport Communications America - ID - LLC
2015/11/05
(667) 786-6
Landline
Teleport Communications America - ID - LLC
2015/11/05
(667) 786-7
Landline
Mcimetro Access Transmission Services LLC
2016/03/02
(667) 786-8
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(667) 786-9
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07

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