(240) 250
Landline
Peerless Network of Maryland, LLC
-
Landline
Atx Communications Services, Ltd.
2003/10/30
(240) 681-0
Wireless
T-mobile USA, Inc.
2019/12/31
(240) 681-1
Landline
Level 3 Communications, LLC - AK
2006/05/31
(240) 681-2
Landline
Level 3 Communications, LLC - AK
2006/10/10
(240) 681-3
Landline
Comcast IP Phone, LLC
2006/05/24
(240) 681-4
Wireless
T-mobile USA, Inc.
2013/05/21
(240) 681-5
Wireless
T-mobile USA, Inc.
2014/10/20
(240) 681-6
Landline
Atx Communications Services, Ltd.
-
(240) 681-7
Landline
Comcast IP Phone, LLC
2015/03/31
(240) 681-8
Wireless
T-mobile USA, Inc.
2016/01/11
(240) 681-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/17
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 685-0
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 685-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(240) 685-2
Landline
Bandwidth.com CLEC, LLC - MD
2007/09/24
(240) 685-3
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 685-4
Landline
Global Crossing Local Services, Inc. - KY
-
(240) 685-5
Landline
Terra Nova Telecom Inc.
2021/04/01
(240) 685-6
Landline
Bandwidth.com CLEC, LLC - MD
2013/05/21
(240) 685-7
Landline
Xo Maryland, LLC
2013/05/16
(240) 685-8
Landline
Peerless Network of Maryland, LLC
2010/07/16
(240) 685-9
Landline
Onvoy, LLC - MD
2012/09/11
Landline
AT&T - Local
2020/12/04
(240) 746-0
Landline
Radiantiq LLC
2021/05/10
(240) 746-1
Landline
Bandwidth.com CLEC, LLC - MD
2021/06/22
(240) 746-2
Landline
Bandwidth.com CLEC, LLC - MD
2021/06/22
(240) 746-3
Unknown
Ton80 Communications, LLC
2021/08/05
(240) 746-4
Wireless
Onvoy Spectrum, LLC
2021/04/21
(240) 746-6
Landline
Onvoy, LLC - MD
2021/03/03
(240) 746-7
Landline
Onvoy, LLC - MD
2021/03/03
(240) 746-8
Landline
Onvoy, LLC - MD
2021/03/03
(240) 746-9
Landline
AT&T - Local
2020/12/07
Landline
Level 3 Communications, LLC - AK
-
(240) 787-0
Landline
Level 3 Communications, LLC - AK
-
(240) 787-2
Wireless
T-mobile USA, Inc.
2018/12/07
(240) 787-4
Landline
Core Communications, Inc.- MD
2019/03/13
(240) 787-5
Landline
Core Communications, Inc.- MD
2019/04/11
(240) 787-6
Landline
Onvoy, LLC - MD
2016/03/29
(240) 787-7
Landline
Onvoy, LLC - MD
2015/05/28
(240) 787-8
Landline
Local Access LLC - MD
2015/02/19
Landline
Fractel, LLC
2020/06/26
(240) 799-0
Landline
Telnyx LLC
2021/02/05
(240) 799-8
Landline
Peerless Network of Maryland, LLC
2020/10/01
(240) 799-9
Landline
Fractel, LLC
2020/06/29
Landline
Xo Maryland, LLC
2001/02/13
(240) 823-0
Landline
Xo Maryland, LLC
-
(240) 823-1
Landline
Xo Maryland, LLC
2005/07/19
(240) 823-2
Landline
Xo Maryland, LLC
2005/07/19
(240) 823-3
Landline
Xo Maryland, LLC
2005/07/19
(240) 823-4
Landline
Onvoy, LLC - MD
2014/10/14
(240) 823-5
Landline
Onvoy, LLC - MD
2014/10/14
(240) 823-6
Landline
Xo Maryland, LLC
-
(240) 823-7
Landline
Comcast IP Phone, LLC
2011/11/01
(240) 823-8
Landline
Onvoy, LLC - MD
2016/03/29
(240) 823-9
Landline
Xo Maryland, LLC
2005/07/19
Landline
Mcimetro Access Transmission Services LLC
-
(301) 242-0
Landline
Core Communications, Inc.- MD
2004/02/25
(301) 242-1
Wireless
T-mobile USA, Inc.
2019/09/19
(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 LA
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.
-
(301) 579-0
Landline
Peerless Network of Maryland, LLC
2019/11/18
(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.
-
Landline
Teleport Communications America - ID - LLC
-
(301) 720-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 720-1
Landline
Peerless Network of Maryland, LLC
2013/04/04
(301) 720-2
Wireless
T-mobile USA, Inc.
2019/06/17
(301) 720-3
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 720-4
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 720-5
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 720-6
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 720-7
Landline
Core Communications, Inc.- MD
2018/05/23
(301) 720-8
Landline
Telnyx LLC
2017/04/17
(301) 720-9
Landline
Teleport Communications America - ID - LLC
-
Landline
Verizon Maryland, Inc.
-
(301) 782-0
Landline
Core Communications, Inc.- MD
2019/04/11
(301) 782-1
Landline
Verizon Maryland, Inc.
-
(301) 782-2
Landline
Verizon Maryland, Inc.
-
(301) 782-3
Landline
Verizon Maryland, Inc.
-
(301) 782-4
Landline
Verizon Maryland, Inc.
-
(301) 782-5
Landline
Verizon Maryland, Inc.
-
(301) 782-6
Landline
Verizon Maryland, Inc.
-
(301) 782-7
Landline
Verizon Maryland, Inc.
-
(301) 782-8
Landline
Cavalier East, LLC - MD
2009/12/23
(301) 782-9
Landline
Verizon Maryland, Inc.
-