(240) 208
Landline
Peerless Network of Maryland, LLC
-
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 349-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 349-1
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 349-2
Landline
Comcast IP Phone, LLC
2005/06/30
(240) 349-3
Landline
Xo Maryland, LLC
2005/07/20
(240) 349-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 349-6
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/24
(240) 349-7
Landline
Onvoy, LLC - MD
2012/09/11
(240) 349-8
Wireless
T-mobile USA, Inc.
2021/05/04
(240) 349-9
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 352
Landline
Peerless Network of Maryland, LLC
-
Landline
Xo Maryland, LLC
2001/02/13
(240) 523-0
Landline
Xo Maryland, LLC
-
(240) 523-1
Landline
Us Lec of Maryland, Inc.
2004/01/15
(240) 523-2
Landline
Level 3 Communications, LLC - AK
2005/06/20
(240) 523-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/17
(240) 523-4
Landline
Level 3 Communications, LLC - AK
2004/02/10
(240) 523-5
Landline
Xo Maryland, LLC
2005/07/20
(240) 523-6
Landline
Xo Maryland, LLC
2005/07/20
(240) 523-7
Landline
Xo Maryland, LLC
2005/07/20
(240) 523-8
Landline
Xo Maryland, LLC
2005/07/20
(240) 523-9
Landline
Xo Maryland, LLC
-
Landline
Core Communications, Inc.- MD
2018/06/11
(240) 622-0
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 622-1
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 622-2
Landline
Core Communications, Inc.- MD
2018/06/13
(240) 622-3
Landline
Onvoy, LLC - MD
2021/06/16
(240) 622-4
Landline
Core Communications, Inc.- MD
2019/03/14
(240) 622-6
Landline
Core Communications, Inc.- MD
2019/03/14
(240) 622-7
Landline
Core Communications, Inc.- MD
2019/03/14
(240) 622-8
Wireless
Onvoy Spectrum, LLC
2021/04/21
Landline
Level 3 Communications, LLC - AK
-
(240) 776-2
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(240) 776-4
Landline
Comcast IP Phone, LLC
2007/09/10
(240) 776-5
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/18
(240) 776-6
Landline
Mcimetro Access Transmission Services LLC
2008/04/09
(240) 776-7
Landline
Terra Nova Telecom Inc.
2021/06/21
(240) 776-8
Landline
Level 3 Communications, LLC - AK
2008/05/06
Landline
Centurylink Communications, LLC LA
2014/05/22
(240) 901-0
Landline
Peerless Network of Maryland, LLC
2014/09/17
(240) 901-1
Landline
Baltimore-washington Telephone (Bwt)
2015/05/27
(240) 901-2
Landline
Comcast IP Phone, LLC
2014/09/23
(240) 901-3
Landline
Onvoy, LLC - MD
2016/02/16
(240) 901-4
Landline
Onvoy, LLC - MD
2016/02/16
(240) 901-5
Landline
Telnyx LLC
2017/04/17
(240) 901-6
Landline
Peerless Network of Maryland, LLC
2021/06/17
(240) 901-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(240) 901-8
Landline
Peerless Network of Maryland, LLC
2015/11/09
(240) 901-9
Landline
Onvoy, LLC - MD
2015/05/28
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
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 IP Phone, LLC
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) 539-7
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) 934
Landline
Verizon Maryland, Inc.
-