(410) 549
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 552-0
Landline
Verizon Maryland, Inc.
-
(410) 552-1
Landline
Verizon Maryland, Inc.
-
(410) 552-2
Landline
Verizon Maryland, Inc.
-
(410) 552-3
Landline
Verizon Maryland, Inc.
-
(410) 552-4
Landline
Verizon Maryland, Inc.
-
(410) 552-5
Landline
Verizon Maryland, Inc.
-
(410) 552-6
Landline
Verizon Maryland, Inc.
-
(410) 552-7
Landline
Core Communications, Inc.- MD
2019/04/12
(410) 552-8
Landline
Comcast IP Phone, LLC
2012/04/24
(410) 552-9
Landline
Verizon Maryland, Inc.
-
(410) 795
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 875-0
Landline
Verizon Maryland, Inc.
-
(410) 875-1
Landline
Verizon Maryland, Inc.
-
(410) 875-2
Landline
Verizon Maryland, Inc.
-
(410) 875-3
Landline
Verizon Maryland, Inc.
-
(410) 875-4
Landline
Verizon Maryland, Inc.
-
(410) 875-5
Landline
Verizon Maryland, Inc.
-
(410) 875-6
Landline
Verizon Maryland, Inc.
-
(410) 875-7
Landline
Comcast IP Phone, LLC
2013/09/09
(410) 875-8
Landline
Atx Telecommunications Services, Ltd
2004/02/27
(410) 875-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(410) 970-0
Landline
Level 3 Communications, LLC - AK
2006/03/14
(410) 970-1
Landline
Terra Nova Telecom Inc.
2020/12/30
(410) 970-2
Landline
Mcimetro Access Transmission Services LLC
-
(410) 970-3
Landline
Onvoy, LLC - MD
2021/04/21
(410) 970-4
Landline
Level 3 Communications, LLC - AK
2003/02/28
(410) 970-5
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/01/21
(410) 970-6
Landline
Level 3 Communications, LLC - AK
2005/02/02
(410) 970-7
Landline
Verizon Maryland, Inc.
2004/05/05
(410) 970-8
Landline
Quantum Telecommunications, Inc. - MD
2003/10/22
(410) 970-9
Landline
Mcimetro Access Transmission Services LLC
-
(410) 984
Wireless
Sprint Spectrum, L.P.
-
(443) 277
Wireless
Sprint Spectrum, L.P.
-
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-0
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-1
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-2
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-3
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-4
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-5
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-6
Landline
Level 3 Communications, LLC - AK
2006/05/31
(443) 280-7
Wireless
New Cingular Wireless PCS, LLC
-
(443) 280-8
Wireless
New Cingular Wireless PCS, LLC
2014/09/02
(443) 280-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
Landline
Level 3 Communications, LLC - AK
-
(443) 300-0
Landline
Onvoy, LLC - MD
2021/06/16
(443) 300-1
Landline
Onvoy, LLC - MD
2021/03/31
(443) 300-2
Landline
Level 3 Communications, LLC - AK
-
(443) 300-3
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 300-4
Wireless
Onvoy Spectrum, LLC
2021/05/27
(443) 300-5
Landline
Twilio International, Inc.
2020/12/01
(443) 300-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(443) 300-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/08/04
(443) 300-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(443) 300-9
Landline
Onvoy, LLC - MD
2021/06/16
Landline
Ctc Communications Corp. - MD
-
(443) 328-0
Landline
Onvoy, LLC - MD
2021/03/31
(443) 328-1
Landline
Ctc Communications Corp. - MD
-
(443) 328-2
Landline
Core Communications, Inc.- MD
2019/04/15
(443) 328-3
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/22
(443) 328-4
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/22
(443) 328-5
Wireless
New Cingular Wireless PCS, LLC
2015/09/16
(443) 328-6
Landline
Comcast IP Phone, LLC
2014/01/02
(443) 328-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(443) 328-8
Landline
Local Access LLC - MD
2016/05/03
(443) 328-9
Landline
Local Access LLC - MD
2015/02/19
(443) 361
Landline
Core Communications, Inc.- MD
-
Wireless
Sprint Spectrum, L.P.
2001/03/15
(443) 398-0
Wireless
Sprint Spectrum, L.P.
-
(443) 398-1
Wireless
Sprint Spectrum, L.P.
-
(443) 398-2
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/31
(443) 398-3
Landline
Onvoy, LLC - MD
2012/02/06
(443) 398-4
Wireless
Sprint Spectrum, L.P.
-
(443) 398-5
Wireless
Sprint Spectrum, L.P.
-
(443) 398-6
Wireless
Sprint Spectrum, L.P.
-
(443) 398-7
Wireless
Sprint Spectrum, L.P.
-
(443) 398-8
Landline
Comcast IP Phone, LLC
2016/03/31
(443) 398-9
Landline
Core Communications, Inc.- MD
2019/04/15
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 516-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 516-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 516-2
Landline
Paetec Communications, Inc. - CA
2004/12/03
(443) 516-3
Landline
Core Communications, Inc.- MD
2019/04/15
(443) 516-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 516-5
Landline
Radiantiq LLC
2021/03/23
(443) 516-6
Wireless
New Cingular Wireless PCS, LLC
2016/08/22
(443) 516-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/05/04
(443) 516-8
Landline
Onvoy, LLC - MD
2016/03/01
(443) 516-9
Landline
Onvoy, LLC - MD
2016/03/01
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 609-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 609-1
Landline
Us Lec of Maryland, Inc.
2003/02/06
(443) 609-2
Landline
Bandwidth.com CLEC, LLC - MD
2016/07/18
(443) 609-3
Landline
Ctc Communications Corp. - MD
2006/07/19
(443) 609-4
Landline
Comcast IP Phone, LLC
2007/01/09
(443) 609-5
Landline
Telnyx LLC
2017/04/14
(443) 609-6
Landline
Comcast IP Phone, LLC
2018/02/02
(443) 609-7
Landline
Bandwidth.com CLEC, LLC - MD
2018/06/28
(443) 609-8
Landline
Peerless Network of Maryland, LLC
2013/04/05
(443) 609-9
Landline
Peerless Network of Maryland, LLC
2013/04/05
Landline
Teleport Communications America - ID - LLC
-
(443) 920-0
Landline
Bandwidth.com CLEC, LLC - MD
2018/06/28
(443) 920-1
Landline
Core Communications, Inc.- MD
2019/04/15
(443) 920-2
Landline
Core Communications, Inc.- MD
2019/04/15
(443) 920-3
Landline
Comcast IP Phone, LLC
2009/04/21
(443) 920-4
Landline
Bandwidth.com CLEC, LLC - MD
2018/05/10
(443) 920-5
Landline
Bandwidth.com CLEC, LLC - MD
2018/05/10
(443) 920-6
Landline
Core Communications, Inc.- MD
2019/04/15
(443) 920-7
Landline
Onvoy, LLC - MD
2016/02/29
(443) 920-8
Landline
Onvoy, LLC - MD
2016/02/29
(443) 920-9
Landline
Teleport Communications America - ID - LLC
-