301 Area Code

Map of 301 code

Local time – 1 timezone

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Eastern timezone

Prefixes – 800 codes

Prefix
Type
City
Carrier
Assigned
Landline
Bandwidth.com CLEC, LLC - MD
2011/02/24
(301) 200-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/05
(301) 200-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/03/01
(301) 200-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/08/08
(301) 200-3
Landline
Mcimetro Access Transmission Services LLC
2011/07/29
(301) 200-4
Landline
Level 3 Communications, LLC - AK
2012/03/28
(301) 200-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/05/04
(301) 200-6
Landline
Baltimore-washington Telephone (Bwt)
2015/05/27
(301) 200-7
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/08
(301) 200-8
Landline
Bandwidth.com CLEC, LLC - MD
2012/08/08
(301) 200-9
Landline
Bandwidth.com CLEC, LLC - MD
2013/01/30
(301) 201
Unknown
-
-
-
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
Wide Voice, LLC - MD
2016/04/20
(301) 205-2
Landline
Wide Voice, LLC - MD
2016/04/20
(301) 205-3
Landline
Wide Voice, LLC - MD
2016/04/20
(301) 205-4
Landline
Wide Voice, LLC - MD
2016/04/20
(301) 205-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2010/12/30
(301) 205-6
Landline
Wide Voice, LLC - MD
2016/04/20
(301) 205-7
Landline
Wide Voice, LLC - MD
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) 208
Landline
Verizon Maryland, Inc.
-
(301) 209
Landline
Verizon Maryland, Inc.
-
(301) 210
Landline
Verizon Maryland, Inc.
-
(301) 211
Unknown
-
-
-
Landline
Verizon Maryland, Inc.
-
(301) 212-0
Wireless
Metro PCS, 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) 216
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) 220-7
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
-
Landline
Verizon Maryland, Inc.
-
(301) 223-0
Landline
Level 3 Communications, LLC - AK
2016/09/22
(301) 223-1
Landline
Verizon Maryland, Inc.
-
(301) 223-2
Landline
Verizon Maryland, Inc.
-
(301) 223-3
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 223-4
Landline
Verizon Maryland, Inc.
-
(301) 223-5
Landline
Verizon Maryland, Inc.
-
(301) 223-6
Landline
Verizon Maryland, Inc.
-
(301) 223-7
Landline
Verizon Maryland, Inc.
-
(301) 223-8
Landline
Verizon Maryland, Inc.
-
(301) 223-9
Landline
Verizon Maryland, Inc.
-
(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.
-
Landline
Verizon Maryland, Inc.
-
(301) 228-0
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/21
(301) 228-1
Landline
Verizon Maryland, Inc.
-
(301) 228-2
Landline
Verizon Maryland, Inc.
-
(301) 228-3
Landline
Verizon Maryland, Inc.
-
(301) 228-4
Landline
Verizon Maryland, Inc.
-
(301) 228-5
Landline
Verizon Maryland, Inc.
-
(301) 228-6
Landline
Verizon Maryland, Inc.
-
(301) 228-7
Landline
Verizon Maryland, Inc.
-
(301) 228-8
Landline
Verizon Maryland, Inc.
-
(301) 228-9
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2017/11/29
(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.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 232-0
Landline
Core Communications, Inc. - MD
2004/02/25
(301) 232-1
Landline
Us Lec of Maryland, Inc.
2003/02/14
(301) 232-2
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
(301) 232-3
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(301) 232-4
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(301) 232-5
Landline
Paetec Communications, Inc. - CA
2006/02/08
(301) 232-6
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(301) 232-7
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
(301) 232-8
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
(301) 232-9
Landline
Mci Worldcom Communications, Inc - MO
-
(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, 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) 235-7
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) 239
Landline
Verizon Maryland, Inc.
-
(301) 240
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 241-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/12/27
(301) 241-1
Landline
Verizon Maryland, Inc.
-
(301) 241-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2010/02/18
(301) 241-3
Landline
Verizon Maryland, Inc.
-
(301) 241-4
Landline
Verizon Maryland, Inc.
-
(301) 241-5
Landline
Verizon Maryland, Inc.
-
(301) 241-6
Landline
Bandwidth.com CLEC, LLC - MD
2014/06/13
(301) 241-7
Landline
Bandwidth.com CLEC, LLC - MD
2007/05/22
(301) 241-8
Landline
Bandwidth.com CLEC, LLC - MD
2014/09/09
(301) 241-9
Landline
Bandwidth.com CLEC, LLC - MD
2015/01/14
Landline
Mcimetro Access Transmission Services LLC
-
(301) 242-0
Landline
Core Communications, Inc. - MD
2004/02/25
(301) 242-2
Landline
Baltimore-washington Telephone (Bwt)
2015/05/12
(301) 242-3
Landline
Mcimetro Access Transmission Services LLC
2015/01/05
(301) 242-4
Landline
Core Communications, Inc. - MD
2019/03/13
(301) 242-5
Landline
Us Lec of Maryland, Inc.
2003/02/06
(301) 242-6
Landline
Core Communications, Inc. - MD
2019/03/13
(301) 242-7
Landline
Centurylink Communications LLC
2014/05/27
(301) 242-8
Landline
Local Access LLC - MD
2016/05/02
(301) 242-9
Landline
Mcimetro Access Transmission Services LLC
-
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
Telcove Operations, Inc. - MD
-
(301) 244-0
Landline
Xo Maryland, LLC
2008/10/09
(301) 244-1
Landline
Telcove Operations, Inc. - MD
-
(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 Phone of Northern Maryland, Inc. - MD
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
Landline
Verizon Maryland, Inc.
-
(301) 245-0
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 245-1
Landline
Bandwidth.com CLEC, LLC - MD
2015/07/13
(301) 245-2
Landline
Bandwidth.com CLEC, LLC - MD
2014/06/13
(301) 245-3
Landline
Bandwidth.com CLEC, LLC - MD
2011/12/27
(301) 245-4
Landline
Verizon Maryland, Inc.
-
(301) 245-5
Landline
Broadvox-clec, LLC - MD
2016/08/30
(301) 245-6
Landline
Bandwidth.com CLEC, LLC - MD
2014/09/22
(301) 245-7
Landline
Bandwidth.com CLEC, LLC - MD
2015/01/14
(301) 245-8
Landline
Broadvox-clec, LLC - MD
2016/08/30
(301) 245-9
Landline
Centurylink Communications LLC
2016/09/26
Landline
Verizon Maryland, Inc.
-
(301) 246-0
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 246-1
Landline
Core Communications, Inc. - MD
2004/02/26
(301) 246-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/20
(301) 246-3
Landline
Bandwidth.com CLEC, LLC - MD
2011/05/04
(301) 246-4
Landline
Verizon Maryland, Inc.
-
(301) 246-5
Landline
Baltimore-washington Telephone (Bwt)
2015/05/06
(301) 246-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/21
(301) 246-7
Landline
Centurylink Communications LLC
2014/05/14
(301) 246-8
Landline
Broadvox-clec, LLC - MD
2015/05/28
(301) 246-9
Landline
Verizon Maryland, Inc.
-
(301) 247
Wireless
New Cingular Wireless PCS, LLC
-
(301) 248
Landline
Verizon Maryland, Inc.
-
(301) 249
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 250-0
Wireless
New Cingular Wireless PCS, LLC
2011/08/17
(301) 250-1
Landline
Broadvox-clec, LLC - MD
2012/02/06
(301) 250-2
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 250-3
Wireless
New Cingular Wireless PCS, LLC
2014/07/10
(301) 250-4
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 250-5
Wireless
New Cingular Wireless PCS, LLC
2011/08/17
(301) 250-6
Wireless
New Cingular Wireless PCS, LLC
2011/08/17
(301) 250-7
Landline
Xo Maryland, LLC
2010/12/17
(301) 250-8
Wireless
New Cingular Wireless PCS, LLC
2011/08/17
(301) 250-9
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 251
Landline
Verizon Maryland, Inc.
-
(301) 252
Wireless
Sprint Spectrum L.P.
-
(301) 253
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
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 256-0
Landline
Level 3 Communications, LLC - AK
2007/11/06
(301) 256-1
Wireless
New Cingular Wireless PCS, LLC
2010/06/14
(301) 256-2
Wireless
New Cingular Wireless PCS, LLC
2010/06/14
(301) 256-3
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 256-4
Wireless
Omnipoint Communications Cap Operations, LLC
2004/12/10
(301) 256-5
Wireless
Omnipoint Communications Cap Operations, LLC
2004/10/14
(301) 256-6
Wireless
New Cingular Wireless PCS, LLC
2010/02/11
(301) 256-7
Wireless
Omnipoint Communications Cap Operations, LLC
2005/04/29
(301) 256-8
Wireless
Omnipoint Communications Cap Operations, LLC
2005/06/20
(301) 256-9
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 257
Wireless
Sprint Spectrum L.P.
-
(301) 258
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 259-0
Landline
Verizon Maryland, Inc.
-
(301) 259-1
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 259-2
Landline
Verizon Maryland, Inc.
-
(301) 259-3
Landline
Broadvox-clec, LLC - MD
2012/09/11
(301) 259-4
Landline
Verizon Maryland, Inc.
-
(301) 259-5
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/24
(301) 259-6
Landline
Verizon Maryland, Inc.
-
(301) 259-7
Landline
Verizon Maryland, Inc.
-
(301) 259-8
Landline
Verizon Maryland, Inc.
-
(301) 259-9
Landline
Local Access LLC - MD
2016/05/02
Landline
Verizon Maryland, Inc.
-
(301) 260-0
Landline
Verizon Maryland, Inc.
-
(301) 260-1
Landline
Verizon Maryland, Inc.
-
(301) 260-2
Landline
Verizon Maryland, Inc.
-
(301) 260-3
Landline
Verizon Maryland, Inc.
-
(301) 260-4
Landline
Level 3 Telecom of Maryland, LLC - MD
2006/05/02
(301) 260-5
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(301) 260-6
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(301) 260-7
Landline
Verizon Maryland, Inc.
-
(301) 260-8
Landline
Verizon Maryland, Inc.
-
(301) 260-9
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
Broadvox-clec, 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) 264-1
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 264-2
Landline
Idt America Corp - MD
2006/02/10
(301) 264-3
Landline
Verizon Maryland, Inc.
-
(301) 264-4
Landline
Verizon Maryland, Inc.
-
(301) 264-5
Landline
Bandwidth.com CLEC, LLC - MD
2012/07/27
(301) 264-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/02/03
(301) 264-7
Landline
Bandwidth.com CLEC, LLC - MD
2015/06/08
(301) 264-8
Landline
Bandwidth.com CLEC, LLC - MD
2015/10/12
Landline
Verizon Maryland, Inc.
-
(301) 265-0
Landline
Verizon Maryland, Inc.
-
(301) 265-1
Landline
Verizon Maryland, Inc.
-
(301) 265-2
Landline
Broadvox-clec, LLC - MD
2014/10/09
(301) 265-3
Landline
Broadvox-clec, 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
2014/05/27
(301) 265-8
Landline
Verizon Maryland, Inc.
-
(301) 265-9
Landline
Verizon Maryland, Inc.
-
(301) 266
Wireless
New Cingular Wireless PCS, LLC
-
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
(301) 268
Wireless
Uscoc of Cumberland, Inc. DBA United States Cel MD
-
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
Verizon Maryland, Inc.
-
(301) 271-0
Landline
Verizon Maryland, Inc.
-
(301) 271-1
Landline
Verizon Maryland, Inc.
-
(301) 271-2
Landline
Verizon Maryland, Inc.
-
(301) 271-3
Landline
Verizon Maryland, Inc.
-
(301) 271-4
Landline
Verizon Maryland, Inc.
-
(301) 271-5
Landline
Verizon Maryland, Inc.
-
(301) 271-6
Landline
Verizon Maryland, Inc.
-
(301) 271-7
Landline
Verizon Maryland, Inc.
-
(301) 271-8
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 271-9
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 272-0
Wireless
New Cingular Wireless PCS, LLC
2008/02/08
(301) 272-1
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 272-2
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 272-3
Landline
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(301) 272-7
Wireless
New Cingular Wireless PCS, LLC
2008/02/08
(301) 272-8
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 272-9
Landline
Mci Worldcom Communications, Inc - MO
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 273-0
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 273-1
Landline
Broadvox-clec, LLC - MD
2014/10/10
(301) 273-2
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 273-3
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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
Broadvox-clec, LLC - MD
2014/10/10
(301) 273-8
Wireless
Omnipoint Communications Cap Operations, LLC
2006/12/01
(301) 273-9
Landline
Mci Worldcom Communications, Inc - MO
-
Landline
Verizon Maryland, Inc.
-
(301) 274-0
Landline
Verizon Maryland, Inc.
-
(301) 274-1
Landline
Verizon Maryland, Inc.
-
(301) 274-2
Landline
Verizon Maryland, Inc.
-
(301) 274-3
Landline
Verizon Maryland, Inc.
-
(301) 274-4
Landline
Verizon Maryland, Inc.
-
(301) 274-5
Landline
Verizon Maryland, Inc.
-
(301) 274-6
Landline
Local Access LLC - MD
2015/02/19
(301) 274-7
Landline
Cavalier East LLC - MD
2010/12/30
(301) 274-8
Landline
Atx Telecommunications Services, Ltd
2004/02/26
(301) 274-9
Landline
Verizon Maryland, Inc.
-
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
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(301) 277
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(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 Phone of Northern Maryland, Inc. - MD
2008/07/03
(301) 278-6
Wireless
Omnipoint Communications Cap Operations, LLC
2015/08/20
(301) 278-7
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2008/07/03
(301) 278-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 278-9
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 279
Landline
Verizon Maryland, Inc.
-
(301) 280
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(301) 284-0
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(301) 284-1
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 284-2
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 284-3
Landline
Broadvox-clec, LLC - MD
2016/01/13
(301) 284-4
Landline
Broadview Networks, Inc. - VA
2013/02/28
(301) 284-5
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 284-6
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 284-7
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 284-8
Landline
Bandwidth.com CLEC, LLC - MD
2004/10/20
(301) 284-9
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 285
Landline
Verizon Maryland, Inc.
-
(301) 286
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 287-0
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 287-1
Landline
Core Communications, Inc. - MD
2018/10/12
(301) 287-2
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 287-3
Landline
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
Landline
Mci Worldcom Communications, Inc - MO
-
(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 Phone of Northern Maryland, Inc. - MD
2013/09/10
(301) 288-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/03/25
(301) 288-6
Landline
Level 3 Communications, LLC - AK
2012/12/21
(301) 288-7
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2006/09/12
(301) 288-8
Landline
Broadview Networks, Inc. - DC
2011/04/18
(301) 288-9
Landline
Mci Worldcom Communications, Inc - MO
-
Landline
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
(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
Mci Worldcom Communications, Inc - MO
-
Landline
Verizon Maryland, Inc.
-
(301) 290-0
Landline
Verizon Maryland, Inc.
-
(301) 290-1
Landline
Verizon Maryland, Inc.
-
(301) 290-2
Landline
Cavalier East LLC - MD
2010/12/30
(301) 290-3
Landline
Atx Telecommunications Services, Ltd
2004/02/26
(301) 290-4
Landline
Core Communications, Inc. - MD
2004/02/26
(301) 290-5
Landline
Verizon Maryland, Inc.
-
(301) 290-6
Landline
Verizon Maryland, Inc.
-
(301) 290-7
Landline
Verizon Maryland, Inc.
-
(301) 290-8
Landline
Verizon Maryland, Inc.
-
(301) 290-9
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 291-0
Landline
Core Communications, Inc. - MD
2018/10/11
(301) 291-1
Wireless
Metro PCS, 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
Metro PCS, Inc.
2019/06/26
(301) 291-7
Landline
Bandwidth.com CLEC, LLC - MD
2004/10/20
(301) 291-8
Wireless
Metro PCS, Inc.
2016/12/30
(301) 291-9
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 292
Landline
Verizon Maryland, Inc.
-
(301) 293
Landline
Verizon Maryland, Inc.
-
(301) 294
Landline
Verizon Maryland, Inc.
-
(301) 295
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-0
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-1
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-2
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-3
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-4
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-5
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-6
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/07/22
(301) 296-7
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-8
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 296-9
Landline
Mci Worldcom Communications, Inc - MO
-
Landline
Verizon Maryland, Inc.
-
(301) 297-0
Landline
Verizon Maryland, Inc.
-
(301) 297-1
Landline
Verizon Maryland, Inc.
-
(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
City
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) 301
Unknown
-
-
-
Wireless
Sprint Spectrum L.P. - MD
2004/10/05
(301) 302-0
Landline
Bandwidth.com CLEC, LLC - MD
2004/10/06
(301) 302-1
Wireless
Sprint Spectrum L.P. - MD
2005/03/02
(301) 302-2
Wireless
Sprint Spectrum L.P. - MD
2006/03/07
(301) 302-3
Wireless
Sprint Spectrum L.P. - MD
2006/03/22
(301) 302-4
Wireless
Sprint Spectrum L.P. - MD
2006/03/22
(301) 302-5
Wireless
New Cingular Wireless PCS, LLC
2007/07/26
(301) 302-6
Wireless
New Cingular Wireless PCS, LLC
2007/07/26
(301) 302-7
Landline
Bandwidth.com CLEC, LLC - MD
2006/04/18
(301) 302-8
Landline
Mci Worldcom Communications, Inc - MO
2006/02/14
(301) 302-9
Wireless
Sprint Spectrum L.P. - MD
2005/02/18
(301) 303
Wireless
USA Mobility Wireless, Inc.
-
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2007/03/06
(301) 304-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2007/03/12
(301) 304-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(301) 304-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2011/03/15
(301) 304-3
Landline
Mci Worldcom Communications, Inc - MO
2009/08/21
(301) 304-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 304-5
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/01/09
(301) 304-6
Landline
Bandwidth.com CLEC, LLC - MD
2014/01/14
(301) 304-7
Landline
Bandwidth.com CLEC, LLC - MD
2014/06/13
(301) 304-8
Landline
Bandwidth.com CLEC, LLC - MD
2015/09/29
(301) 304-9
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2015/02/17
(301) 305
Wireless
Sprint Spectrum L.P.
-
(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) 307-7
Landline
Baltimore-washington Telephone (Bwt)
2015/05/27
(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) 309-8
Landline
Verizon Maryland, Inc.
-
(301) 309-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 310-0
Landline
Verizon Maryland, Inc.
-
(301) 310-1
Wireless
Cellco Partnership DBA Verizon Wireless
2010/10/06
(301) 310-2
Wireless
Cellco Partnership DBA Verizon Wireless
2011/05/04
(301) 310-3
Wireless
Cellco Partnership DBA Verizon Wireless
2011/05/04
(301) 310-4
Wireless
Cellco Partnership DBA Verizon Wireless
2011/05/24
(301) 310-5
Wireless
Cellco Partnership DBA Verizon Wireless
2011/06/24
(301) 310-6
Wireless
Cellco Partnership DBA Verizon Wireless
2011/07/05
(301) 310-7
Wireless
Cellco Partnership DBA Verizon Wireless
2011/08/08
(301) 310-8
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/02
(301) 310-9
Wireless
Cellco Partnership DBA Verizon Wireless
2011/09/02
(301) 311
Unknown
-
-
-
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 Phone of Northern Maryland, Inc. - MD
2006/09/06
(301) 312-7
Wireless
New Cingular Wireless PCS, LLC
2006/08/29
(301) 312-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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) 313-6
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 Phone of Northern Maryland, Inc. - MD
2015/03/19
(301) 317
Landline
Verizon Maryland, Inc.
-
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
Telcove Operations, Inc. - MD
-
(301) 321-0
Landline
Core Communications, Inc. - MD
2018/05/23
(301) 321-1
Landline
Telcove Operations, Inc. - MD
-
(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.
-
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 323-0
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 323-1
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 323-2
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 323-3
Wireless
New Cingular Wireless PCS, LLC
2010/02/11
(301) 323-4
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 323-5
Wireless
New Cingular Wireless PCS, LLC
2010/02/11
(301) 323-6
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 323-7
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 323-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(301) 323-9
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(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 Phone of Northern Maryland, Inc. - MD
2006/09/12
(301) 326-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2006/09/12
(301) 326-3
Wireless
Omnipoint Communications Cap Operations, LLC
2004/02/05
(301) 326-4
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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 Phone of Northern Maryland, Inc. - MD
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
Broadvox-clec, LLC - MD
2015/06/26
(301) 327-3
Landline
Mci Worldcom Communications, Inc - MO
2007/11/14
(301) 327-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/20
(301) 327-5
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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 Phone of Northern Maryland, Inc. - MD
2006/06/21
(301) 328-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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 Phone of Northern Maryland, Inc. - MD
2007/09/27
(301) 328-6
Wireless
Omnipoint Communications Cap Operations, LLC
2006/12/19
(301) 328-7
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2011/09/20
(301) 329-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 329-1
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 329-2
Landline
Broadvox-clec, LLC - MD
2012/09/12
(301) 329-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2011/09/27
(301) 329-4
Landline
Onvoy, LLC - MD
2014/08/07
(301) 329-5
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/24
(301) 329-6
Landline
Broadvox-clec, LLC - MD
2015/09/22
(301) 329-7
Landline
Centurylink Communications LLC
2014/05/14
(301) 329-8
Landline
Broadvox-clec, LLC - MD
2015/12/16
(301) 329-9
Landline
Baltimore-washington Telephone (Bwt)
2015/05/12
(301) 330
Landline
Verizon Maryland, Inc.
-
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-1
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-2
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-3
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-4
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-5
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-6
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-7
Wireless
New Cingular Wireless PCS, LLC
-
(301) 331-8
Wireless
Sprint Spectrum L.P. - MD
2004/03/10
(301) 331-9
Wireless
New Cingular Wireless PCS, LLC
-
(301) 332
Wireless
New Cingular Wireless PCS, LLC
-
(301) 333
Landline
Verizon Maryland, Inc.
-
(301) 334
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
Mci Worldcom Communications, Inc - MO
-
(301) 337-0
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/15
(301) 337-1
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/15
(301) 337-2
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 337-3
Landline
Broadview Networks, Inc. - MD
2011/02/24
(301) 337-4
Landline
Teleport Communications America - ID - LLC
2003/05/07
(301) 337-5
Wireless
Cellco Partnership DBA Verizon Wireless
2012/08/06
(301) 337-6
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/06/25
(301) 337-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/20
(301) 337-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/20
(301) 337-9
Wireless
Cellco Partnership DBA Verizon Wireless
2012/10/04
Landline
Idt America Corp - MD
2006/01/31
(301) 338-0
Wireless
New Cingular Wireless PCS, LLC
2011/02/28
(301) 338-1
Wireless
New Cingular Wireless PCS, LLC
2007/11/26
(301) 338-2
Landline
Idt America Corp - MD
2006/02/06
(301) 338-3
Wireless
New Cingular Wireless PCS, LLC
2011/02/28
(301) 338-4
Wireless
Sprint Spectrum L.P.
2011/08/15
(301) 338-5
Wireless
Sprint Spectrum L.P.
2011/08/15
(301) 338-6
Landline
Bandwidth.com CLEC, LLC - MD
2014/05/02
(301) 338-7
Wireless
Sprint Spectrum L.P.
2011/08/15
(301) 338-8
Landline
Bandwidth.com CLEC, LLC - MD
2012/01/20
(301) 338-9
Unknown
Shentel Communications, LLC - MD
2014/05/06
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 Phone of Northern Maryland, Inc. - MD
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) 342
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 Phone of Northern Maryland, Inc. - MD
2016/12/30
(301) 347-7
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2017/08/21
(301) 347-8
Wireless
Cellco Partnership DBA Verizon Wireless
2018/08/13
(301) 347-9
Landline
Verizon Maryland, Inc.
-
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 348-0
Landline
Core Communications, Inc. - MD
2018/10/12
(301) 348-1
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 348-2
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 348-3
Landline
Mci Worldcom Communications, Inc - MO
-
(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 Phone of Northern Maryland, Inc. - MD
2016/02/09
(301) 348-9
Landline
Core Communications, Inc. - MD
2018/10/12
Landline
Verizon Maryland, Inc.
-
(301) 349-0
Landline
Verizon Maryland, Inc.
-
(301) 349-1
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 349-2
Landline
Verizon Maryland, Inc.
-
(301) 349-3
Landline
Broadvox-clec, LLC - MD
2016/02/16
(301) 349-4
Landline
Verizon Maryland, Inc.
-
(301) 349-5
Landline
Verizon Maryland, Inc.
-
(301) 349-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/20
(301) 349-7
Landline
Paetec Communications, Inc. - CA
2007/03/20
(301) 349-8
Landline
Cavalier East LLC - MD
2010/12/30
(301) 349-9
Landline
Local Access LLC - MD
2015/02/19
(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
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
-
Landline
Verizon Maryland, Inc.
2005/12/08
(301) 355-0
Landline
Level 3 Communications, LLC - AK
2009/09/30
(301) 355-1
Landline
Global Crossing Local Services, Inc. - KY
2009/11/02
(301) 355-2
Landline
Level 3 Communications, LLC - AK
2011/01/03
(301) 355-3
Landline
Cbeyond Comm, LLC MD
2008/05/21
(301) 355-4
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2009/07/29
(301) 355-5
Landline
Verizon Maryland, Inc.
2007/07/31
(301) 355-6
Landline
Verizon Maryland, Inc.
2007/07/31
(301) 355-7
Landline
Verizon Maryland, Inc.
2007/07/31
(301) 355-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2009/07/29
(301) 355-9
Landline
Ymax Communications Corp. - MD
2011/01/21
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
-
(301) 356-0
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(301) 356-1
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(301) 356-2
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(301) 356-3
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(301) 356-4
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(301) 356-5
Wireless
Cellco Partnership DBA Verizon Wireless
2005/04/06
(301) 356-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(301) 356-7
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
(301) 356-8
Wireless
Cellco Partnership DBA Verizon Wireless
2005/07/07
(301) 356-9
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/13
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
-
Landline
Verizon Maryland, Inc.
-
(301) 359-0
Landline
Verizon Maryland, Inc.
-
(301) 359-1
Landline
Bandwidth.com CLEC, LLC - MD
2015/02/03
(301) 359-2
Landline
Verizon Maryland, Inc.
-
(301) 359-3
Landline
Verizon Maryland, Inc.
-
(301) 359-4
Landline
Verizon Maryland, Inc.
-
(301) 359-5
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2010/02/23
(301) 359-6
Landline
Bandwidth.com CLEC, LLC - MD
2012/01/11
(301) 359-7
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 359-8
Landline
Teleport Communications America - ID - LLC
2015/02/19
(301) 359-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 360-0
Landline
Verizon Maryland, Inc.
-
(301) 360-1
Landline
Verizon Maryland, Inc.
-
(301) 360-2
Landline
Verizon Maryland, Inc.
-
(301) 360-3
Landline
Verizon Maryland, Inc.
-
(301) 360-4
Landline
Verizon Maryland, Inc.
-
(301) 360-5
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2016/01/25
(301) 360-6
Landline
Verizon Maryland, Inc.
-
(301) 360-7
Landline
Verizon Maryland, Inc.
-
(301) 360-8
Landline
Verizon Maryland, Inc.
-
(301) 360-9
Landline
Verizon Maryland, Inc.
-
(301) 361
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(301) 362
Landline
Verizon Maryland, Inc.
-
Landline
Level 3 Communications, LLC - AK
2006/08/16
(301) 363-0
Landline
Bandwidth.com CLEC, LLC - MD
2015/09/29
(301) 363-1
Landline
Level 3 Communications, LLC - AK
2008/11/14
(301) 363-2
Landline
Level 3 Communications, LLC - AK
2011/10/05
(301) 363-3
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2012/10/26
(301) 363-4
Landline
Level 3 Communications, LLC - AK
-
(301) 363-5
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2009/02/06
(301) 363-6
Landline
AT&T Local
2009/03/16
(301) 363-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/10/27
(301) 363-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2007/02/26
(301) 363-9
Landline
Bandwidth.com CLEC, LLC - MD
2013/06/28
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 364-0
Landline
Cbeyond Comm, LLC MD
2012/06/08
(301) 364-1
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 364-2
Wireless
Metro PCS, 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
Metro PCS, 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.
-
Wireless
Sprint Spectrum L.P.
-
(301) 366-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/08/30
(301) 366-1
Wireless
New Cingular Wireless PCS, LLC
2010/06/07
(301) 366-2
Wireless
New Cingular Wireless PCS, LLC
2010/06/07
(301) 366-3
Wireless
Sprint Spectrum L.P.
2003/09/17
(301) 366-4
Wireless
Sprint Spectrum L.P.
2003/09/17
(301) 366-5
Wireless
Sprint Spectrum L.P.
2004/09/08
(301) 366-6
Wireless
New Cingular Wireless PCS, LLC
2010/06/07
(301) 366-7
Wireless
Sprint Spectrum L.P.
2003/12/05
(301) 366-8
Wireless
Sprint Spectrum L.P.
2003/12/05
(301) 366-9
Wireless
New Cingular Wireless PCS, LLC
2010/09/15
(301) 367
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 368-1
Landline
Verizon Maryland, Inc.
-
(301) 368-2
Landline
Paetec Communications, Inc. - CA
2007/07/24
(301) 368-3
Landline
Verizon Maryland, Inc.
-
(301) 368-4
Wireless
New Cingular Wireless PCS, LLC
2017/09/20
(301) 368-5
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 368-6
Landline
Telnyx LLC
2018/10/08
(301) 368-7
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 368-8
Landline
Telnyx LLC
2017/04/17
(301) 368-9
Landline
Verizon Maryland, Inc.
-
(301) 369
Landline
Verizon Maryland, Inc.
-
(301) 370
Wireless
Sprint Spectrum L.P.
-
Landline
Verizon Maryland, Inc.
-
(301) 371-0
Landline
Verizon Maryland, Inc.
-
(301) 371-1
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 371-2
Landline
Bandwidth.com CLEC, LLC - MD
2007/05/22
(301) 371-3
Landline
Verizon Maryland, Inc.
-
(301) 371-4
Landline
Verizon Maryland, Inc.
-
(301) 371-5
Landline
Verizon Maryland, Inc.
-
(301) 371-6
Landline
Verizon Maryland, Inc.
-
(301) 371-7
Landline
Verizon Maryland, Inc.
-
(301) 371-8
Landline
Verizon Maryland, Inc.
-
(301) 371-9
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
2014/05/27
(301) 372-8
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 373-0
Wireless
Cellco Partnership DBA Verizon Wireless
2011/07/05
(301) 373-1
Landline
Cbeyond Comm, LLC MD
2008/05/21
(301) 373-2
Landline
Verizon Maryland, Inc.
-
(301) 373-3
Landline
Verizon Maryland, Inc.
-
(301) 373-4
Landline
Verizon Maryland, Inc.
-
(301) 373-5
Landline
Verizon Maryland, Inc.
-
(301) 373-6
Landline
Verizon Maryland, Inc.
-
(301) 373-7
Landline
Verizon Maryland, Inc.
-
(301) 373-8
Landline
Verizon Maryland, Inc.
-
(301) 373-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 374-0
Landline
Verizon Maryland, Inc.
-
(301) 374-1
Landline
Verizon Maryland, Inc.
-
(301) 374-2
Landline
Verizon Maryland, Inc.
-
(301) 374-3
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 374-4
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 374-5
Landline
Verizon Maryland, Inc.
-
(301) 374-6
Landline
Verizon Maryland, Inc.
-
(301) 374-7
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 374-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2017/04/28
(301) 374-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 375-0
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 375-1
Landline
Core Communications, Inc. - MD
2004/02/26
(301) 375-2
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/24
(301) 375-3
Landline
Cavalier East LLC - MD
2009/12/23
(301) 375-4
Landline
Lightwave Communications, LLC - MD
2005/09/08
(301) 375-5
Landline
Ymax Communications Corp. - MD
2009/09/15
(301) 375-6
Landline
Verizon Maryland, Inc.
-
(301) 375-7
Landline
Verizon Maryland, Inc.
-
(301) 375-8
Landline
Verizon Maryland, Inc.
-
(301) 375-9
Landline
Verizon Maryland, Inc.
-
(301) 376
Landline
Verizon Maryland, Inc.
-
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 377-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 377-1
Wireless
New Cingular Wireless PCS, LLC
2010/01/11
(301) 377-2
Wireless
Cellco Partnership DBA Verizon Wireless
2010/06/03
(301) 377-3
Wireless
New Cingular Wireless PCS, LLC
2010/04/28
(301) 377-4
Wireless
Omnipoint Communications Cap Operations, LLC
2005/01/21
(301) 377-5
Landline
Verizon Maryland, Inc.
2005/09/19
(301) 377-6
Wireless
New Cingular Wireless PCS, LLC
2010/01/11
(301) 377-7
Landline
Verizon Maryland, Inc.
2007/01/18
(301) 377-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/08/20
(301) 377-9
Wireless
Cellco Partnership DBA Verizon Wireless
2010/04/05
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2007/02/20
(301) 378-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2007/02/22
(301) 378-1
Landline
Us Lec of Maryland, Inc.
2011/02/22
(301) 378-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2009/07/14
(301) 378-3
Wireless
Sprint Spectrum L.P.
2011/06/27
(301) 378-4
Wireless
Sprint Spectrum L.P.
2011/06/27
(301) 378-5
Wireless
Sprint Spectrum L.P.
2011/06/27
(301) 378-6
Wireless
Sprint Spectrum L.P.
2011/06/27
(301) 378-7
Landline
Teleport Communications America - ID - LLC
2012/08/01
(301) 378-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2012/10/05
(301) 378-9
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/04/18
(301) 379
Wireless
Sprint Spectrum L.P.
-
(301) 380
Landline
Verizon Maryland, Inc.
-
(301) 381
Unknown
-
-
-
(301) 382
Landline
Verizon Maryland, Inc.
-
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 383-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2012/10/05
(301) 383-1
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 383-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2016/06/24
(301) 383-3
Wireless
Metro PCS, Inc.
2016/09/02
(301) 383-4
Wireless
Metro PCS, Inc.
2017/03/01
(301) 383-5
Wireless
Metro PCS, Inc.
2016/11/01
(301) 383-6
Wireless
Metro PCS, Inc.
2017/06/20
(301) 383-7
Wireless
Metro PCS, 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) 387-0
Landline
Verizon Maryland, Inc.
-
(301) 387-2
Landline
Verizon Maryland, Inc.
-
(301) 387-3
Landline
Verizon Maryland, Inc.
-
(301) 387-4
Landline
Verizon Maryland, Inc.
-
(301) 387-5
Landline
Verizon Maryland, Inc.
-
(301) 387-6
Landline
Verizon Maryland, Inc.
-
(301) 387-7
Landline
Verizon Maryland, Inc.
-
(301) 387-8
Landline
Verizon Maryland, Inc.
-
(301) 387-9
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
Metro PCS, 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.
-
Landline
Verizon Maryland, Inc.
-
(301) 391-0
Landline
Local Access LLC - MD
2016/05/02
(301) 391-1
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 391-2
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 391-3
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 391-4
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 391-5
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 391-6
Landline
Verizon Maryland, Inc.
-
(301) 391-7
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 391-8
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 391-9
Landline
Core Communications, Inc. - MD
2018/10/10
Landline
Verizon Maryland, Inc.
-
(301) 392-0
Landline
Verizon Maryland, Inc.
-
(301) 392-1
Landline
Verizon Maryland, Inc.
-
(301) 392-2
Landline
Paetec Communications, Inc. - CA
2006/11/03
(301) 392-3
Landline
Verizon Maryland, Inc.
-
(301) 392-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2006/11/17
(301) 392-5
Landline
Verizon Maryland, Inc.
-
(301) 392-6
Landline
Verizon Maryland, Inc.
-
(301) 392-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/05/04
(301) 392-8
Landline
Atx Telecommunications Services, Ltd
2004/02/27
(301) 392-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 393-0
Landline
Verizon Maryland, Inc.
-
(301) 393-1
Landline
Us Lec of Maryland, Inc.
2015/04/28
(301) 393-2
Landline
Verizon Maryland, Inc.
-
(301) 393-3
Landline
Verizon Maryland, Inc.
-
(301) 393-4
Landline
Verizon Maryland, Inc.
-
(301) 393-5
Landline
Verizon Maryland, Inc.
-
(301) 393-6
Landline
Us Lec of Maryland, Inc.
2017/03/29
(301) 393-7
Wireless
Omnipoint Communications Cap Operations, LLC
2016/06/16
(301) 393-8
Landline
Verizon Maryland, Inc.
-
(301) 393-9
Landline
Verizon Maryland, Inc.
-
(301) 394
Landline
Verizon Maryland, Inc.
-
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 395-0
Wireless
Cellco Partnership DBA Verizon Wireless
2004/03/15
(301) 395-1
Wireless
Cellco Partnership DBA Verizon Wireless
2004/08/05
(301) 395-2
Wireless
Cellco Partnership DBA Verizon Wireless
2004/08/05
(301) 395-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/08/05
(301) 395-4
Wireless
Cellco Partnership DBA Verizon Wireless
2004/08/05
(301) 395-5
Wireless
Cellco Partnership DBA Verizon Wireless
2004/11/17
(301) 395-6
Wireless
Cellco Partnership DBA Verizon Wireless
2004/11/17
(301) 395-7
Wireless
Cellco Partnership DBA Verizon Wireless
2004/11/17
(301) 395-8
Wireless
Cellco Partnership DBA Verizon Wireless
2004/11/17
(301) 395-9
Wireless
Cellco Partnership DBA Verizon Wireless
2005/01/05
Landline
Verizon Maryland, Inc.
-
(301) 396-0
Landline
Verizon Maryland, Inc.
-
(301) 396-1
Landline
Verizon Maryland, Inc.
-
(301) 396-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2019/03/01
(301) 396-3
Landline
Verizon Maryland, Inc.
-
(301) 396-4
Landline
Verizon Maryland, Inc.
-
(301) 396-5
Landline
Verizon Maryland, Inc.
-
(301) 396-6
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 396-7
Landline
Onvoy, LLC - MD
2019/02/05
(301) 396-8
Landline
Verizon Maryland, Inc.
-
(301) 396-9
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
(301) 399
Wireless
Sprint Spectrum L.P.
-
Prefix
Type
City
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) 401
Wireless
New Cingular Wireless PCS, LLC
-
(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) 407-0
Landline
Verizon Maryland, Inc.
-
(301) 407-1
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2011/05/27
(301) 407-2
Landline
Level 3 Communications, LLC - AK
2014/09/29
(301) 407-3
Wireless
Sprint Spectrum L.P.
2005/06/16
(301) 407-4
Landline
Verizon Maryland, Inc.
2003/04/02
(301) 407-5
Wireless
Sprint Spectrum L.P.
2006/04/07
(301) 407-6
Landline
Paetec Communications, Inc. - CA
2011/10/03
(301) 407-7
Wireless
Sprint Spectrum L.P.
2005/11/29
(301) 407-8
Wireless
Sprint Spectrum L.P.
2006/04/07
(301) 407-9
Landline
Verizon Maryland, 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) 410
Unknown
-
-
-
(301) 411
Unknown
-
-
-
(301) 412
Wireless
New Cingular Wireless PCS, LLC
-
(301) 413
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 414-0
Landline
Verizon Maryland, Inc.
-
(301) 414-1
Landline
Core Communications, Inc. - MD
2019/07/01
(301) 414-2
Landline
Verizon Maryland, Inc.
-
(301) 414-3
Landline
Core Communications, Inc. - MD
2019/07/01
(301) 414-4
Landline
Core Communications, Inc. - MD
2019/07/01
(301) 414-5
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 414-6
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 414-7
Landline
Verizon Maryland, Inc.
-
(301) 414-8
Landline
Onvoy, LLC - MD
2016/02/12
(301) 414-9
Landline
Verizon Maryland, Inc.
-
(301) 415
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 416-0
Landline
Verizon Maryland, Inc.
-
(301) 416-1
Landline
Core Communications, Inc. - MD
2019/04/16
(301) 416-2
Landline
Verizon Maryland, Inc.
-
(301) 416-3
Landline
Core Communications, Inc. - MD
2019/04/16
(301) 416-4
Landline
Verizon Maryland, Inc.
-
(301) 416-5
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 416-6
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 416-7
Landline
Verizon Maryland, Inc.
-
(301) 416-8
Landline
Verizon Maryland, Inc.
-
(301) 416-9
Wireless
Cellco Partnership DBA Verizon Wireless
2019/01/09
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, Inc. - VA
2015/08/18
(301) 417-4
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2015/04/02
(301) 417-5
Landline
Broadvox-clec, LLC - MD
2015/05/28
(301) 417-6
Landline
Verizon Maryland, Inc.
-
(301) 417-7
Landline
Verizon Maryland, Inc.
-
(301) 417-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2015/09/16
(301) 417-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
2002/11/20
(301) 418-0
Wireless
Sprint Spectrum L.P.
2003/09/17
(301) 418-1
Wireless
Sprint Spectrum L.P.
2003/09/17
(301) 418-2
Wireless
Sprint Spectrum L.P.
2003/09/17
(301) 418-3
Wireless
Sprint Spectrum L.P.
2004/01/08
(301) 418-4
Wireless
Sprint Spectrum L.P.
2004/01/08
(301) 418-5
Wireless
Sprint Spectrum L.P.
2004/05/12
(301) 418-6
Landline
Fibernet WV
2004/03/26
(301) 418-7
Landline
Verizon Maryland, Inc.
2004/07/06
(301) 418-8
Wireless
Sprint Spectrum L.P.
2004/08/18
(301) 418-9
Landline
Verizon Maryland, Inc.
2002/11/22
(301) 419
Landline
Verizon Maryland, Inc.
-
(301) 420
Landline
Verizon Maryland, Inc.
-
(301) 421
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) 432-0
Landline
Verizon Maryland, Inc.
-
(301) 432-1
Landline
Verizon Maryland, Inc.
-
(301) 432-2
Landline
Verizon Maryland, Inc.
-
(301) 432-3
Landline
Verizon Maryland, Inc.
-
(301) 432-4
Landline
Verizon Maryland, Inc.
-
(301) 432-5
Landline
Verizon Maryland, Inc.
-
(301) 432-6
Landline
Verizon Maryland, Inc.
-
(301) 432-7
Landline
Verizon Maryland, Inc.
-
(301) 432-8
Landline
Verizon Maryland, Inc.
-
(301) 432-9
Landline
Fibernet WV
2004/01/23
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
Broadvox-clec, LLC - MD
2015/05/28
(301) 433-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2015/07/30
(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
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
Level 3 Telecom of Maryland, LLC - MD
2019/01/28
(301) 444-7
Landline
Verizon Maryland, Inc.
2004/04/20
(301) 444-8
Landline
Verizon Maryland, Inc.
-
(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
Verizon Maryland, Inc.
-
(301) 447-0
Landline
Bandwidth.com CLEC, LLC - MD
2018/05/11
(301) 447-1
Landline
Verizon Maryland, Inc.
-
(301) 447-2
Landline
Verizon Maryland, Inc.
-
(301) 447-3
Landline
Verizon Maryland, Inc.
-
(301) 447-4
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2007/02/23
(301) 447-5
Landline
Verizon Maryland, Inc.
-
(301) 447-6
Landline
Verizon Maryland, Inc.
-
(301) 447-7
Landline
Verizon Maryland, Inc.
-
(301) 447-8
Landline
Verizon Maryland, Inc.
2007/11/08
(301) 447-9
Landline
Core Communications, Inc. - MD
2019/03/04
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 448-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/02/06
(301) 448-1
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(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) 450
Unknown
-
-
-
(301) 451
Landline
Verizon Maryland, Inc.
-
(301) 452
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 453-0
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 453-1
Unknown
Shentel Communications, LLC - MD
2012/05/29
(301) 453-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/09/01
(301) 453-3
Landline
Verizon Maryland, Inc.
-
(301) 453-4
Landline
Broadvox-clec, LLC - MD
2016/08/30
(301) 453-5
Landline
Bandwidth.com CLEC, LLC - MD
2014/06/13
(301) 453-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/07/13
(301) 453-7
Landline
Bandwidth.com CLEC, LLC - MD
2015/10/12
(301) 453-8
Landline
Broadvox-clec, LLC - MD
2016/08/30
(301) 453-9
Landline
Centurylink Communications LLC
2016/09/26
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 Phone of Northern Maryland, Inc. - MD
-
(301) 456-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(301) 456-1
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 456-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(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 Phone of Northern Maryland, Inc. - MD
2013/04/18
(301) 456-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(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
-
Wireless
Sprint Spectrum L.P. - MD
-
(301) 462-0
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-1
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-2
Wireless
Sprint Spectrum L.P. - MD
2012/11/23
(301) 462-3
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-4
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-5
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-6
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-7
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-8
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 462-9
Wireless
Sprint Spectrum L.P. - MD
-
Landline
Verizon Maryland, Inc.
-
(301) 463-0
Landline
Core Communications, Inc. - MD
2004/02/27
(301) 463-1
Landline
Idt America Corp - MD
2006/02/10
(301) 463-2
Landline
Verizon Maryland, Inc.
-
(301) 463-3
Landline
Verizon Maryland, Inc.
-
(301) 463-4
Landline
Bandwidth.com CLEC, LLC - MD
2015/02/03
(301) 463-5
Landline
Verizon Maryland, Inc.
-
(301) 463-6
Landline
Verizon Maryland, Inc.
-
(301) 463-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/12/13
(301) 463-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2014/02/28
(301) 463-9
Landline
Teleport Communications America - ID - LLC
2012/02/23
(301) 464
Landline
Verizon Maryland, Inc.
-
Wireless
Sprint Spectrum L.P. - MD
-
(301) 465-0
Wireless
Sprint Spectrum L.P. - MD
-
(301) 465-1
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-2
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-3
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-4
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-5
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-6
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-7
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-8
Wireless
Sprint Spectrum L.P. - MD
2011/10/11
(301) 465-9
Wireless
Sprint Spectrum L.P. - MD
-
(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) 471
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 472
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 473-0
Wireless
Sprint Spectrum L.P.
2007/12/03
(301) 473-1
Wireless
Sprint Spectrum L.P.
2007/12/03
(301) 473-2
Wireless
New Cingular Wireless PCS, LLC
2007/01/08
(301) 473-3
Wireless
New Cingular Wireless PCS, LLC
2007/01/08
(301) 473-4
Landline
Verizon Maryland, Inc.
-
(301) 473-5
Landline
Verizon Maryland, Inc.
-
(301) 473-6
Wireless
Sprint Spectrum L.P.
2007/12/03
(301) 473-7
Landline
Verizon Maryland, Inc.
-
(301) 473-8
Landline
Verizon Maryland, Inc.
-
(301) 473-9
Landline
Verizon Maryland, Inc.
-
(301) 474
Landline
Verizon Maryland, Inc.
-
(301) 475
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 476-0
Landline
Level 3 Communications, LLC - AK
2004/12/01
(301) 476-1
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 476-2
Landline
Verizon Maryland, Inc.
-
(301) 476-3
Wireless
Omnipoint Communications Cap Operations, LLC
2016/01/07
(301) 476-4
Landline
Level 3 Communications, LLC - AK
2003/02/28
(301) 476-5
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 476-6
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 476-7
Landline
Verizon Maryland, Inc.
-
(301) 476-8
Landline
Verizon Maryland, Inc.
-
(301) 476-9
Landline
Verizon Maryland, Inc.
-
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 477-0
Landline
Core Communications, Inc. - MD
2018/10/11
(301) 477-1
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 477-2
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 477-3
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 477-4
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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 Phone of Northern Maryland, Inc. - MD
2015/08/18
(301) 477-8
Landline
Onvoy, LLC - MD
2017/12/15
(301) 477-9
Landline
Onvoy, LLC - MD
2017/12/15
Landline
Verizon Maryland, Inc.
-
(301) 478-0
Landline
Core Communications, Inc. - MD
2004/02/26
(301) 478-1
Landline
Idt America Corp - MD
2006/02/10
(301) 478-2
Landline
Verizon Maryland, Inc.
-
(301) 478-3
Landline
Verizon Maryland, Inc.
-
(301) 478-4
Landline
Bandwidth.com CLEC, LLC - MD
2012/07/27
(301) 478-5
Landline
Verizon Maryland, Inc.
-
(301) 478-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/02/03
(301) 478-7
Landline
Bandwidth.com CLEC, LLC - MD
2015/10/08
(301) 478-8
Landline
Broadvox-clec, LLC - MD
2016/08/30
(301) 478-9
Landline
Broadvox-clec, LLC - MD
2016/08/30
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 479-0
Landline
Core Communications, Inc. - MD
2018/10/11
(301) 479-1
Landline
Mci Worldcom Communications, Inc - MO
-
(301) 479-2
Landline
Core Communications, Inc. - MD
2018/10/11
(301) 479-3
Landline
Mci Worldcom Communications, Inc - MO
-
(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) 481
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 482-0
Landline
Verizon Maryland, Inc.
-
(301) 482-1
Landline
Verizon Maryland, Inc.
-
(301) 482-2
Landline
Verizon Maryland, Inc.
-
(301) 482-3
Landline
Verizon Maryland, Inc.
-
(301) 482-4
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 482-5
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 482-6
Landline
Verizon Maryland, Inc.
-
(301) 482-7
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 482-8
Landline
Core Communications, Inc. - MD
2018/10/10
(301) 482-9
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 483
Landline
Verizon Maryland, Inc.
-
(301) 484
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 485-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2012/09/12
(301) 485-1
Landline
Comcast Phone of Northern Maryland, Inc. - MD
-
(301) 485-2
Landline
Broadvox-clec, LLC - MD
2016/02/17
(301) 485-3
Landline
Broadview Networks, Inc. - MD
2015/08/06
(301) 485-4
Landline
Broadvox-clec, LLC - MD
2016/03/29
(301) 485-5
Landline
Broadvox-clec, 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 Phone of Northern Maryland, Inc. - MD
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) 487
Landline
Verizon Maryland, Inc.
-
(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) 490
Landline
Verizon Maryland, Inc.
-
(301) 491
Wireless
Uscoc of Cumberland, Inc. DBA United States Cel MD
-
(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 Phone of Northern Maryland, Inc. - MD
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
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) 497
Landline
Verizon Maryland, Inc.
-
(301) 498
Landline
Verizon Maryland, Inc.
-
(301) 499
Landline
Verizon Maryland, Inc.
-
Prefix
Type
City
Carrier
Assigned
Landline
Xo Maryland, LLC
-
(301) 500-0
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/05
(301) 500-1
Landline
Allegiance Telecom, Inc. - MD
2011/04/13
(301) 500-2
Landline
Xo Maryland, LLC
2011/04/06
(301) 500-3
Landline
Allegiance Telecom, Inc. - MD
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
Wireless
New Cingular Wireless PCS, LLC
-
(301) 501-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 501-1
Wireless
New Cingular Wireless PCS, LLC
-
(301) 501-2
Wireless
New Cingular Wireless PCS, LLC
-
(301) 501-3
Wireless
New Cingular Wireless PCS, LLC
2014/10/27
(301) 501-4
Landline
Core Communications, Inc. - MD
2019/07/15
(301) 501-5
Landline
Mci Worldcom Communications, Inc - MO
2009/08/24
(301) 501-6
Wireless
New Cingular Wireless PCS, LLC
-
(301) 501-7
Wireless
New Cingular Wireless PCS, LLC
2007/10/15
(301) 501-8
Wireless
New Cingular Wireless PCS, LLC
2014/03/10
(301) 501-9
Landline
Core Communications, Inc. - MD
2019/07/15
(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
Wireless
New Cingular Wireless PCS, LLC
-
(301) 508-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 508-1
Wireless
New Cingular Wireless PCS, LLC
2017/08/04
(301) 508-2
Wireless
New Cingular Wireless PCS, LLC
2017/08/04
(301) 508-3
Wireless
New Cingular Wireless PCS, LLC
2017/08/04
(301) 508-4
Wireless
New Cingular Wireless PCS, LLC
2017/12/07
(301) 508-5
Landline
Core Communications, Inc. - MD
2019/04/16
(301) 508-6
Landline
Centurylink Communications LLC
2016/09/22
(301) 508-7
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2007/02/26
(301) 508-8
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2019/04/10
(301) 508-9
Landline
Bandwidth.com CLEC, LLC - MD
2007/05/22
(301) 509
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 510
Wireless
USA Mobility Wireless, Inc.
-
(301) 511
Unknown
-
-
-
(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) 514
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 515
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) 519
Landline
Verizon Maryland, Inc.
-
(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) 524
Wireless
Sprint Spectrum L.P.
-
Landline
Quantum Telecommunications, Inc. - MD
2003/10/16
(301) 525-0
Landline
Quantum Telecommunications, Inc. - MD
2003/10/16
(301) 525-1
Wireless
Cellco Partnership DBA Verizon Wireless
2008/05/06
(301) 525-2
Wireless
Cellco Partnership DBA Verizon Wireless
2008/08/04
(301) 525-3
Wireless
Cellco Partnership DBA Verizon Wireless
2008/09/03
(301) 525-4
Wireless
Cellco Partnership DBA Verizon Wireless
2008/02/05
(301) 525-5
Wireless
Cellco Partnership DBA Verizon Wireless
2008/02/05
(301) 525-6
Wireless
Cellco Partnership DBA Verizon Wireless
2008/06/03
(301) 525-7
Wireless
Cellco Partnership DBA Verizon Wireless
2008/10/03
(301) 525-8
Wireless
Cellco Partnership DBA Verizon Wireless
2008/11/05
(301) 525-9
Wireless
Cellco Partnership DBA Verizon Wireless
2008/12/09
(301) 526
Wireless
New Cingular Wireless PCS, LLC
-
(301) 527
Landline
Verizon Maryland, Inc.
-
(301) 528
Landline
Verizon Maryland, Inc.
-
(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
Wireless
Omnipoint Communications Cap Operations, LLC
2015/02/20
(301) 532-0
Wireless
Cellco Partnership DBA Verizon Wireless
2018/06/27
(301) 532-1
Wireless
Cellco Partnership DBA Verizon Wireless
2017/02/09
(301) 532-2
Wireless
Cellco Partnership DBA Verizon Wireless
2017/02/09
(301) 532-3
Wireless
Omnipoint Communications Cap Operations, LLC
2016/06/16
(301) 532-4
Landline
Level 3 Telecom of Maryland, LLC - MD
2016/03/24
(301) 532-5
Wireless
Omnipoint Communications Cap Operations, LLC
2017/01/05
(301) 532-6
Wireless
Omnipoint Communications Cap Operations, LLC
2016/11/09
(301) 532-7
Wireless
Omnipoint Communications Cap Operations, LLC
2015/10/28
(301) 532-8
Wireless
Omnipoint Communications Cap Operations, LLC
2015/10/28
(301) 532-9
Wireless
Omnipoint Communications Cap Operations, LLC
2015/02/23
Landline
Verizon Maryland, Inc.
-
(301) 533-0
Landline
Verizon Maryland, Inc.
-
(301) 533-1
Landline
Verizon Maryland, Inc.
-
(301) 533-2
Landline
Verizon Maryland, Inc.
-
(301) 533-3
Landline
Verizon Maryland, Inc.
-
(301) 533-4
Landline
Verizon Maryland, Inc.
-
(301) 533-5
Landline
Core Communications, Inc. - MD
2019/04/16
(301) 533-6
Wireless
New Cingular Wireless PCS, LLC
2008/01/08
(301) 533-7
Landline
Level 3 Communications, LLC - AK
2008/02/01
(301) 533-8
Landline
Ymax Communications Corp. - MD
2009/03/04
(301) 533-9
Landline
Fibernet WV
2004/01/23
Landline
Ymax Communications Corp. - MD
2006/11/15
(301) 534-0
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-1
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-2
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-3
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-4
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-5
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-6
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-7
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-8
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 534-9
Landline
Ymax Communications Corp. - MD
2006/11/21
(301) 535
Wireless
New Cingular Wireless PCS, LLC
-
(301) 536
Wireless
Sprint Spectrum L.P.
-
(301) 537
Wireless
Sprint Spectrum L.P.
-
(301) 538
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Teleport Communications America - ID - LLC
-
(301) 539-0
Landline
Teleport Communications America - ID - LLC
-
(301) 539-1
Landline
Core Communications, Inc. - MD
2004/02/25
(301) 539-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/07/20
(301) 539-3
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/08/23
(301) 539-4
Landline
Verizon Maryland, Inc.
2005/04/22
(301) 539-5
Landline
Lightwave Communications, LLC - MD
2005/09/08
(301) 539-6
Landline
Level 3 Communications, LLC - AK
2012/11/07
(301) 539-7
Landline
Verizon Maryland, Inc.
2007/11/29
(301) 539-8
Landline
Broadview Networks, Inc. - MD
2008/01/08
(301) 539-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
(301) 540
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 541-0
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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
Metro PCS, Inc.
2013/05/23
(301) 541-5
Landline
Teleport Communications America - ID - LLC
-
(301) 541-6
Wireless
Metro PCS, 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
Landline
Teleport Communications America - ID - LLC
-
(301) 542-0
Landline
Teleport Communications America - ID - LLC
-
(301) 542-1
Landline
Ctc Communications Corp. - MD
2005/12/21
(301) 542-2
Wireless
Cellco Partnership DBA Verizon Wireless
2006/04/06
(301) 542-3
Wireless
Cellco Partnership DBA Verizon Wireless
2006/05/12
(301) 542-4
Wireless
Cellco Partnership DBA Verizon Wireless
2006/06/05
(301) 542-5
Wireless
Cellco Partnership DBA Verizon Wireless
2011/06/15
(301) 542-6
Wireless
Cellco Partnership DBA Verizon Wireless
2007/10/24
(301) 542-7
Wireless
Cellco Partnership DBA Verizon Wireless
2006/05/12
(301) 542-8
Landline
Atx Telecommunications Services, Ltd
2004/02/27
(301) 542-9
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
Landline
Teleport Communications America - ID - LLC
-
(301) 543-0
Wireless
New Cingular Wireless PCS, LLC
2011/06/24
(301) 543-1
Landline
Teleport Communications America - ID - LLC
-
(301) 543-2
Landline
Teleport Communications America - ID - LLC
-
(301) 543-3
Landline
Teleport Communications America - ID - LLC
-
(301) 543-4
Landline
Teleport Communications America - ID - LLC
-
(301) 543-5
Landline
Teleport Communications America - ID - LLC
-
(301) 543-6
Landline
Teleport Communications America - ID - LLC
-
(301) 543-7
Wireless
New Cingular Wireless PCS, LLC
2015/11/09
(301) 543-8
Landline
Lightwave Communications, LLC - MD
2005/03/25
(301) 543-9
Wireless
New Cingular Wireless PCS, LLC
2015/11/09
(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 Phone of Northern Maryland, Inc. - MD
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
Teleport Communications America - ID - LLC
-
(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.
-
Landline
Verizon Maryland, Inc.
-
(301) 549-0
Wireless
Omnipoint Communications Cap Operations, LLC
2014/08/22
(301) 549-1
Landline
Verizon Maryland, Inc.
-
(301) 549-2
Wireless
Omnipoint Communications Cap Operations, LLC
2017/11/24
(301) 549-3
Landline
Verizon Maryland, Inc.
-
(301) 549-4
Wireless
Omnipoint Communications Cap Operations, LLC
2018/01/08
(301) 549-5
Landline
Local Access LLC - MD
2015/02/19
(301) 549-6
Wireless
Omnipoint Communications Cap Operations, LLC
2017/11/24
(301) 549-7
Landline
Ctc Communications Corp. - MD
2011/10/20
(301) 549-8
Wireless
Omnipoint Communications Cap Operations, LLC
2014/08/22
(301) 549-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/08/22
(301) 550
Unknown
-
-
-
(301) 551
Landline
Baltimore-washington Telephone (Bwt)
-
(301) 552
Landline
Verizon Maryland, Inc.
-
(301) 553
Wireless
USA Mobility Wireless, Inc.
-
(301) 554
Wireless
USA Mobility Wireless, Inc.
-
(301) 555
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 556-0
Landline
Teleport Communications America - ID - LLC
-
(301) 556-1
Landline
Teleport Communications America - ID - LLC
-
(301) 556-2
Landline
Teleport Communications America - ID - LLC
-
(301) 556-3
Wireless
Sprint Spectrum L.P.
2004/10/21
(301) 556-4
Landline
Teleport Communications America - ID - LLC
-
(301) 556-5
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/02/24
(301) 556-6
Wireless
Sprint Spectrum L.P.
2004/02/05
(301) 556-7
Wireless
Sprint Spectrum L.P.
2004/02/05
(301) 556-8
Wireless
Sprint Spectrum L.P.
2005/10/18
(301) 556-9
Landline
Teleport Communications America - ID - LLC
-
Landline
Broadwing Communications. LLC - MD
2011/09/06
(301) 557-0
Wireless
New Cingular Wireless PCS, LLC
2014/09/02
(301) 557-1
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-2
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-3
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-4
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-5
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-6
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-7
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-8
Landline
Broadwing Communications. LLC - MD
2011/09/16
(301) 557-9
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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.
-
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 569-0
Wireless
Cellco Partnership DBA Verizon Wireless
2013/09/05
(301) 569-1
Wireless
Cellco Partnership DBA Verizon Wireless
2014/02/27
(301) 569-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/04/08
(301) 569-3
Wireless
Cellco Partnership DBA Verizon Wireless
2014/02/27
(301) 569-4
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/11/27
(301) 569-5
Landline
Centurylink Communications LLC
2013/08/01
(301) 569-6
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2011/08/26
(301) 569-7
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2011/12/15
(301) 569-8
Landline
Ymax Communications Corp. - MD
2011/08/23
(301) 569-9
Landline
Bandwidth.com CLEC, LLC - MD
2012/03/07
(301) 570
Landline
Verizon Maryland, Inc.
-
(301) 571
Landline
Verizon Maryland, Inc.
-
(301) 572
Landline
Verizon Maryland, Inc.
-
(301) 573
Wireless
Sprint Spectrum L.P. - MD
-
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 Phone of Northern Maryland, Inc. - MD
2018/10/11
(301) 574-8
Landline
Verizon Maryland, Inc.
-
(301) 574-9
Landline
Verizon Maryland, Inc.
-
Landline
Us Lec of Maryland, Inc.
-
(301) 575-0
Landline
Us Lec of Maryland, Inc.
-
(301) 575-1
Landline
Us Lec of Maryland, Inc.
-
(301) 575-2
Landline
Us Lec of Maryland, Inc.
-
(301) 575-3
Landline
Us Lec of Maryland, Inc.
-
(301) 575-4
Wireless
Cellco Partnership DBA Verizon Wireless
2005/12/05
(301) 575-5
Landline
Us Lec of Maryland, Inc.
2006/06/30
(301) 575-6
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
(301) 575-7
Wireless
Cellco Partnership DBA Verizon Wireless
2006/07/06
(301) 575-8
Landline
Core Communications, Inc. - MD
2004/02/26
(301) 575-9
Landline
Us Lec of 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) 578-3
Unknown
Barr Tell USA, Inc.
2018/04/26
(301) 578-4
Landline
Verizon Maryland, Inc.
-
(301) 578-5
Landline
Paetec Communications, Inc. - CA
2018/03/27
(301) 578-6
Landline
Bandwidth.com CLEC, LLC - MD
2018/06/19
(301) 578-7
Landline
Centurylink Communications LLC
2018/02/16
(301) 578-8
Landline
Verizon Maryland, Inc.
-
(301) 578-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 579-1
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 579-2
Landline
Verizon Maryland, Inc.
-
(301) 579-3
Landline
Level 3 Communications, LLC - AK
2004/12/20
(301) 579-4
Landline
Level 3 Communications, LLC - AK
2003/02/28
(301) 579-5
Landline
Level 3 Communications, LLC - AK
2004/12/01
(301) 579-6
Landline
Verizon Maryland, Inc.
-
(301) 579-7
Landline
Onvoy, LLC - MD
2016/02/03
(301) 579-8
Landline
Onvoy, LLC - MD
2016/02/03
(301) 579-9
Landline
Verizon Maryland, Inc.
-
(301) 580
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 581
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 582-0
Landline
Verizon Maryland, Inc.
-
(301) 582-1
Landline
Verizon Maryland, Inc.
-
(301) 582-2
Landline
Verizon Maryland, Inc.
-
(301) 582-3
Landline
Verizon Maryland, Inc.
-
(301) 582-4
Landline
Verizon Maryland, Inc.
-
(301) 582-5
Landline
Verizon Maryland, Inc.
-
(301) 582-6
Landline
Verizon Maryland, Inc.
-
(301) 582-7
Landline
Verizon Maryland, Inc.
-
(301) 582-8
Wireless
New Cingular Wireless PCS, LLC
2008/05/02
(301) 582-9
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
Metro PCS, 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.
-
(301) 591
Landline
Paetec Communications, Inc. - CA
-
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) 596
Landline
Verizon Maryland, Inc.
-
(301) 597
Landline
New Frontiers Telecommunications, Inc.
-
(301) 598
Landline
Verizon Maryland, Inc.
-
(301) 599
Landline
Verizon Maryland, Inc.
-
Prefix
Type
City
Carrier
Assigned
Landline
Verizon Maryland, Inc.
2006/07/06
(301) 600-0
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-1
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-2
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-3
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-4
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-5
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-6
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-7
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-8
Landline
Verizon Maryland, Inc.
2006/07/07
(301) 600-9
Landline
Verizon Maryland, Inc.
2006/07/07
(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 Phone of Northern Maryland, Inc. - MD
2016/06/24
(301) 603-3
Landline
Broadvox-clec, 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.
-
(301) 604
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 Phone of Northern Maryland, Inc. - MD
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) 606
Wireless
Cellco Partnership DBA Verizon Wireless
-
(301) 607
Landline
Verizon Maryland, Inc.
-
(301) 608
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 609-0
Wireless
Cellco Partnership DBA Verizon Wireless
2007/01/04
(301) 609-1
Wireless
Cellco Partnership DBA Verizon Wireless
2007/01/04
(301) 609-2
Wireless
Cellco Partnership DBA Verizon Wireless
2007/02/06
(301) 609-3
Landline
Verizon Maryland, Inc.
-
(301) 609-4
Landline
Verizon Maryland, Inc.
-
(301) 609-5
Landline
Verizon Maryland, Inc.
-
(301) 609-6
Landline
Verizon Maryland, Inc.
-
(301) 609-7
Landline
Verizon Maryland, Inc.
-
(301) 609-8
Landline
Verizon Maryland, Inc.
-
(301) 609-9
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) 610-4
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.
-
(301) 611
Unknown
-
-
-
Landline
Teleport Communications America - ID - LLC
2012/10/11
(301) 612-0
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-1
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-2
Landline
Wide Voice, LLC - MD
2016/04/20
(301) 612-3
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-4
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-5
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-6
Landline
Teleport Communications America - ID - LLC
2012/10/12
(301) 612-7
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-8
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 612-9
Landline
Wide Voice, LLC - MD
2016/08/12
(301) 613
Wireless
Sprint Spectrum L.P.
-
(301) 614
Landline
Verizon Maryland, Inc.
-
(301) 615
Landline
Bandwidth.com CLEC, LLC - MD
-
(301) 616
Wireless
Uscoc of Cumberland, Inc. DBA United States Cel MD
-
(301) 617
Landline
Verizon Maryland, Inc.
-
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) 619
Landline
Verizon Maryland, Inc.
-
(301) 620
Landline
Verizon Maryland, Inc.
-
(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
Landline
Verizon Maryland, Inc.
-
(301) 624-1
Landline
Verizon Maryland, Inc.
-
(301) 624-2
Landline
Verizon Maryland, Inc.
-
(301) 624-3
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(301) 624-4
Landline
Verizon Maryland, Inc.
-
(301) 624-5
Landline
Verizon Maryland, Inc.
-
(301) 624-6
Landline
Verizon Maryland, Inc.
-
(301) 624-7
Landline
Verizon Maryland, Inc.
-
(301) 624-8
Landline
Verizon Maryland, Inc.
-
(301) 624-9
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(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.
-
Landline
Verizon Maryland, Inc.
-
(301) 631-0
Landline
Verizon Maryland, Inc.
-
(301) 631-1
Landline
Verizon Maryland, Inc.
-
(301) 631-2
Landline
Verizon Maryland, Inc.
-
(301) 631-3
Landline
Verizon Maryland, Inc.
-
(301) 631-4
Wireless
Omnipoint Communications Cap Operations, LLC
2015/10/28
(301) 631-5
Landline
Verizon Maryland, Inc.
-
(301) 631-6
Landline
Verizon Maryland, Inc.
-
(301) 631-7
Landline
Verizon Maryland, Inc.
-
(301) 631-8
Landline
Verizon Maryland, Inc.
-
(301) 631-9
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 632-0
Landline
Core Communications, Inc. - MD
2018/10/11
(301) 632-1
Landline
Core Communications, Inc. - MD
2018/10/11
(301) 632-2
Landline
Verizon Maryland, Inc.
-
(301) 632-3
Landline
Verizon Maryland, Inc.
-
(301) 632-4
Landline
Verizon Maryland, Inc.
-
(301) 632-5
Landline
Verizon Maryland, Inc.
-
(301) 632-6
Landline
Verizon Maryland, Inc.
-
(301) 632-7
Landline
Verizon Maryland, Inc.
-
(301) 632-8
Landline
Verizon Maryland, Inc.
-
(301) 632-9
Landline
Verizon Maryland, Inc.
-
(301) 633
Wireless
New Cingular Wireless PCS, LLC
-
(301) 634
Landline
Teleport Communications America - ID - LLC
-
(301) 635
Landline
New Frontiers Telecommunications, Inc.
-
Landline
Verizon Maryland, Inc.
-
(301) 636-1
Landline
Verizon Maryland, Inc.
-
(301) 636-2
Landline
Verizon Maryland, Inc.
-
(301) 636-3
Landline
Comcast Phone of Northern Maryland, Inc. - MD
2013/08/15
(301) 636-4
Landline
Comcast Phone of Northern Maryland, Inc. - MD
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 Phone of Northern Maryland, Inc. - MD
2010/09/29
Landline
Verizon Maryland, Inc.
-
(301) 638-0
Landline
Verizon Maryland, Inc.
-
(301) 638-1
Landline
Verizon Maryland, Inc.
-
(301) 638-2
Landline
Verizon Maryland, Inc.
-
(301) 638-3
Landline
Verizon Maryland, Inc.
-
(301) 638-4
Landline
Verizon Maryland, Inc.
-
(301) 638-5
Landline
Verizon Maryland, Inc.
-
(301) 638-6
Landline
Core Communications, Inc. - MD
2019/04/11
(301) 638-7
Landline
Verizon Maryland, Inc.
-
(301) 638-8
Landline
Onvoy, LLC - MD
2019/02/05
(301) 638-9
Landline
Verizon Maryland, Inc.
-
(301) 639
Wireless
Cellco Partnership DBA Verizon Wireless
-
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
Broadvox-clec, 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
Metro PCS, 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) 643
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Verizon Maryland, Inc.
-
(301) 644-0
Wireless
Brightlink Communications, LLC
2018/10/09
(301) 644-1
Landline
Verizon Maryland, Inc.
-
(301) 644-2
Landline
Verizon Maryland, Inc.
-
(301) 644-3
Landline
Verizon Maryland, Inc.
-
(301) 644-4
Landline
Verizon Maryland, Inc.
-
(301) 644-5
Landline
Verizon Maryland, Inc.
-
(301) 644-6
Landline
Verizon Maryland, Inc.
-
(301) 644-7
Landline
Verizon Maryland, Inc.
-
(301) 644-8
Landline
Verizon Maryland, Inc.
-
(301) 644-9
Landline
Verizon Maryland, Inc.
-
(301) 645
Landline
Verizon Maryland, Inc.
-
(301) 646
Wireless
New Cingular Wireless PCS, LLC
-
(301) 647
Landline
Verizon Maryland, Inc.
-
(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) 653
Wireless
New Cingular Wireless PCS, LLC
-
(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.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 658-0
Landline
Baltimore-washington Telephone (Bwt)
2015/05/11
(301) 658-1
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 658-2
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 658-3
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 658-4
Wireless
Omnipoint Communications Cap Operations, LLC
2018/01/08
(301) 658-5
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 658-6
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 658-7
Landline
Level 3 Communications, LLC - AK
2004/12/22
(301) 658-8
Wireless
Omnipoint Communications Cap Operations, LLC
2014/08/22
(301) 658-9
Landline
Teleport Communications America - ID - LLC
-
Wireless
New Cingular Wireless PCS, LLC
-
(301) 659-0
Wireless
New Cingular Wireless PCS, LLC
-
(301) 659-1
Wireless
New Cingular Wireless PCS, LLC
-
(301) 659-2
Wireless
New Cingular Wireless PCS, LLC