Landline
Verizon Maryland, Inc.
-
(410) 374-0
Landline
Verizon Maryland, Inc.
-
(410) 374-1
Landline
Verizon Maryland, Inc.
-
(410) 374-2
Landline
Verizon Maryland, Inc.
-
(410) 374-3
Landline
Verizon Maryland, Inc.
-
(410) 374-4
Landline
Verizon Maryland, Inc.
-
(410) 374-5
Landline
Verizon Maryland, Inc.
-
(410) 374-6
Landline
Verizon Maryland, Inc.
-
(410) 374-7
Landline
Ctc Communications Corp. - MD
2008/03/03
(410) 374-8
Landline
Verizon Maryland, Inc.
-
(410) 374-9
Landline
Verizon Maryland, Inc.
-
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 291-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 291-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 291-2
Landline
Onvoy, LLC - MD
2016/02/23
(443) 291-3
Landline
Level 3 Communications, LLC - AK
2008/08/27
(443) 291-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 291-6
Landline
Comcast IP Phone, LLC
2005/07/06
(443) 291-7
Landline
Level 3 Communications, LLC - AK
2006/02/06
(443) 291-8
Landline
Onvoy, LLC - MD
2016/02/23
(443) 291-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
Wireless
Sprint Spectrum, L.P.
-
(443) 375-0
Wireless
Sprint Spectrum, L.P.
-
(443) 375-1
Wireless
Sprint Spectrum, L.P.
-
(443) 375-2
Wireless
Sprint Spectrum, L.P.
-
(443) 375-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/08/05
(443) 375-4
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/01/21
(443) 375-5
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 375-6
Wireless
Sprint Spectrum, L.P.
-
(443) 375-7
Wireless
Sprint Spectrum, L.P.
-
(443) 375-8
Wireless
Sprint Spectrum, L.P.
-
(443) 375-9
Wireless
Sprint Spectrum, L.P.
-
Landline
Teleport Communications America - ID - LLC
-
(443) 507-0
Landline
Verizon Maryland, Inc.
2003/09/11
(443) 507-1
Landline
Us Lec of Maryland, Inc.
2003/06/26
(443) 507-3
Landline
Core Communications, Inc.- MD
2004/03/01
(443) 507-4
Landline
Quantum Telecommunications, Inc. - MD
2016/01/04
(443) 507-5
Landline
Verizon Maryland, Inc.
2005/04/22
(443) 507-6
Landline
Comcast IP Phone, LLC
2009/05/15
(443) 507-7
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 507-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/06/07
(443) 507-9
Landline
Teleport Communications America - ID - LLC
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 508-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 508-1
Wireless
Sprint Spectrum, L.P.
2004/11/30
(443) 508-2
Landline
Comcast IP Phone, LLC
2013/01/22
(443) 508-3
Landline
Mcimetro Access Transmission Services LLC
2008/09/19
(443) 508-4
Landline
Verizon Maryland, Inc.
2004/08/27
(443) 508-5
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 508-6
Landline
Twilio International, Inc.
2020/11/30
(443) 508-7
Landline
Onvoy, LLC - MD
2012/09/11
(443) 508-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(443) 508-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Landline
Ctc Communications Corp. - MD
-
(443) 639-0
Landline
Telnyx LLC
2017/04/14
(443) 639-1
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 639-2
Landline
Comcast IP Phone, LLC
2017/06/06
(443) 639-3
Landline
Ctc Communications Corp. - MD
-
(443) 639-4
Landline
Bandwidth.com CLEC, LLC - MD
2015/05/05
(443) 639-5
Landline
Comcast IP Phone, LLC
2015/03/09
(443) 639-6
Landline
Baltimore-washington Telephone (Bwt)
2015/05/20
(443) 639-7
Landline
Centurylink Communications, LLC LA
2014/05/14
(443) 639-8
Landline
Onvoy, LLC - MD
2014/10/06
(443) 639-9
Landline
Onvoy, LLC - MD
2014/10/06
Landline
Core Communications, Inc.- MD
2018/10/15
(667) 366-0
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 366-1
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 366-2
Landline
Core Communications, Inc.- MD
2019/03/14
(667) 366-3
Landline
Core Communications, Inc.- MD
2019/03/14
(667) 366-4
Landline
Core Communications, Inc.- MD
2019/03/14
(667) 366-5
Landline
Core Communications, Inc.- MD
2019/03/14
(667) 366-6
Landline
Core Communications, Inc.- MD
2019/02/27
(667) 366-7
Landline
Onvoy, LLC - MD
2019/02/06
(667) 366-8
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 366-9
Landline
Onvoy, LLC - MD
2019/02/06
Landline
Radiantiq LLC
2021/03/25
(667) 477-4
Wireless
Onvoy Spectrum, LLC
2021/04/23
(667) 477-6
Landline
Radiantiq LLC
2021/03/26
(667) 477-7
Landline
Terra Nova Telecom Inc.
2021/04/07