(410) 282
Landline
Verizon Maryland, Inc.
-
(410) 284
Landline
Verizon Maryland, Inc.
-
(410) 285
Landline
Verizon Maryland, Inc.
-
(410) 288
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(410) 650-0
Landline
Onvoy, LLC - MD
2016/03/03
(410) 650-1
Landline
Baltimore-washington Telephone (Bwt)
2015/05/18
(410) 650-2
Landline
Mcimetro Access Transmission Services LLC
-
(410) 650-3
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2003/10/17
(410) 650-4
Landline
Level 3 Communications, LLC - AK
2006/04/13
(410) 650-5
Landline
Bandwidth.com CLEC, LLC - MD
2004/10/20
(410) 650-6
Landline
Onvoy, LLC - MD
2016/02/23
(410) 650-7
Landline
Level 3 Telecom of Maryland, LLC - MD
2006/05/03
(410) 650-8
Landline
Onvoy, LLC - MD
2016/03/03
(410) 650-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 216-0
Landline
Core Communications, Inc.- MD
2004/03/01
(443) 216-1
Landline
Level 3 Communications, LLC - AK
2006/05/31
(443) 216-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/10/22
(443) 216-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/10/22
(443) 216-4
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/10/22
(443) 216-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/10/22
(443) 216-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/10/22
(443) 216-7
Landline
Comcast IP Phone, LLC
2005/02/11
(443) 216-8
Wireless
New Cingular Wireless PCS, LLC
2019/06/17
(443) 216-9
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
Landline
Teleport Communications America - ID - LLC
-
(443) 376-0
Landline
Teleport Communications America - ID - LLC
-
(443) 376-1
Landline
Core Communications, Inc.- MD
2019/04/12
(443) 376-2
Landline
Core Communications, Inc.- MD
2019/03/14
(443) 376-3
Landline
Paetec Communications, Inc. - CA
2007/06/04
(443) 376-4
Landline
Comcast IP Phone, LLC
2019/04/10
(443) 376-5
Landline
Comcast IP Phone, LLC
2007/08/01
(443) 376-6
Landline
Bandwidth.com CLEC, LLC - MD
2019/02/14
(443) 376-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/11/02
(443) 376-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/06/07
(443) 376-9
Landline
Core Communications, Inc.- MD
2019/04/12
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 399-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 399-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 399-2
Landline
Onvoy, LLC - MD
2012/09/12
(443) 399-3
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/23
(443) 399-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 399-5
Landline
Peerless Network of Maryland, LLC
2020/09/30
(443) 399-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/23
(443) 399-7
Landline
Centurylink Communications, LLC LA
2014/03/06
(443) 399-8
Landline
Comcast IP Phone, LLC
2008/03/07
(443) 399-9
Landline
Local Access LLC - MD
2013/08/12
Landline
Xo Maryland, LLC
-
(443) 407-0
Landline
Xo Maryland, LLC
-
(443) 407-1
Landline
Xo Maryland, LLC
-
(443) 407-2
Landline
Xo Maryland, LLC
-
(443) 407-4
Landline
Xo Maryland, LLC
-
(443) 407-5
Landline
Xo Maryland, LLC
-
(443) 407-6
Landline
Xo Maryland, LLC
-
(443) 407-7
Landline
Bandwidth.com CLEC, LLC - MD
2019/02/14
(443) 407-8
Landline
Onvoy, LLC - MD
2016/03/16
(443) 407-9
Landline
Xo Maryland, LLC
-
Landline
Xo Maryland, LLC
-
(443) 503-0
Landline
Xo Maryland, LLC
-
(443) 503-1
Landline
Xo Maryland, LLC
-
(443) 503-2
Landline
Xo Maryland, LLC
-
(443) 503-3
Landline
Level 3 Communications, LLC - AK
2005/02/01
(443) 503-4
Landline
Level 3 Communications, LLC - AK
2003/01/27
(443) 503-5
Landline
Comcast IP Phone, LLC
2006/09/06
(443) 503-6
Landline
Comcast IP Phone, LLC
2006/09/06
(443) 503-7
Landline
Broadview Networks, Inc. - MD
2009/04/08
(443) 503-8
Landline
Comcast IP Phone, LLC
2013/01/07
(443) 503-9
Wireless
New Cingular Wireless PCS, LLC
2020/03/05
Landline
Paetec Communications, Inc. - CA
-
(443) 530-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 530-1
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 530-2
Landline
Local Access LLC - MD
2016/09/15
(443) 530-3
Landline
Comcast IP Phone, LLC
2014/01/21
(443) 530-4
Landline
Bandwidth.com CLEC, LLC - MD
2017/09/01
(443) 530-5
Landline
Onvoy, LLC - MD
2015/12/23
(443) 530-6
Landline
Comcast IP Phone, LLC
2016/04/11
(443) 530-7
Landline
Bandwidth.com CLEC, LLC - MD
2018/05/01
(443) 530-8
Landline
Telnyx LLC
2017/04/13
(443) 530-9
Landline
Paetec Communications, Inc. - CA
-
Landline
Us Lec of Maryland, Inc.
-
(443) 549-0
Landline
Us Lec of Maryland, Inc.
-
(443) 549-1
Landline
Us Lec of Maryland, Inc.
-
(443) 549-2
Landline
Us Lec of Maryland, Inc.
-
(443) 549-3
Landline
Us Lec of Maryland, Inc.
-
(443) 549-4
Landline
Comcast IP Phone, LLC
2015/05/01
(443) 549-5
Unknown
Barr Tell USA, Inc.
2016/11/18
(443) 549-6
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 549-7
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 549-8
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 549-9
Landline
Us Lec of Maryland, Inc.
-
Landline
Xo Maryland, LLC
-
(443) 586-0
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 586-1
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 586-2
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 586-3
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 586-4
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 586-5
Wireless
New Cingular Wireless PCS, LLC
2017/10/27
(443) 586-6
Wireless
New Cingular Wireless PCS, LLC
2017/10/27
(443) 586-7
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 586-8
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 586-9
Landline
Core Communications, Inc.- MD
2018/10/10
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/05/10
(443) 696-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 696-2
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 696-3
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 696-4
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 696-6
Landline
Core Communications, Inc.- MD
2018/10/10
(443) 696-7
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 696-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Verizon Maryland, Inc.
-
(443) 879-0
Landline
Core Communications, Inc.- MD
2019/04/12
(443) 879-1
Landline
Ctc Communications Corp. - MD
2005/12/22
(443) 879-2
Landline
Onvoy, LLC - MD
2014/08/07
(443) 879-3
Landline
Bandwidth.com CLEC, LLC - MD
2019/02/14
(443) 879-4
Wireless
New Cingular Wireless PCS, LLC
2018/10/17
(443) 879-5
Landline
Verizon Maryland, Inc.
2003/07/16
(443) 879-6
Landline
Bandwidth.com CLEC, LLC - MD
2018/06/28
(443) 879-7
Landline
Onvoy, LLC - MD
2014/12/15
(443) 879-8
Landline
Onvoy, LLC - MD
2014/12/15
(443) 879-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
Wireless
New Cingular Wireless PCS, LLC
2020/03/09
(667) 263-2
Landline
Twilio International, Inc.
2020/11/25
(667) 263-3
Landline
Onvoy, LLC - MD
2021/06/15
(667) 263-4
Landline
Onvoy, LLC - MD
2021/06/15
(667) 263-6
Landline
Radiantiq LLC
2021/03/23
(667) 263-7
Wireless
Onvoy Spectrum, LLC
2021/04/23
(667) 263-9
Wireless
New Cingular Wireless PCS, LLC
2020/03/10