(410) 496
Landline
Verizon Maryland, Inc.
-
(410) 521
Landline
Verizon Maryland, Inc.
-
(410) 655
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(410) 701-0
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
(410) 701-1
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/01/23
(410) 701-2
Landline
Onvoy, LLC - MD
2016/03/10
(410) 701-3
Landline
Onvoy, LLC - MD
2016/03/10
(410) 701-4
Landline
Verizon Maryland, Inc.
2003/04/09
(410) 701-5
Landline
Lightwave Communications, LLC - MD
2005/06/08
(410) 701-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2009/04/02
(410) 701-7
Landline
Comcast IP Phone, LLC
2005/02/11
(410) 701-8
Landline
Comcast IP Phone, LLC
2007/06/19
(410) 701-9
Landline
Mcimetro Access Transmission Services LLC
-
(410) 922
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(443) 272-0
Landline
Core Communications, Inc.- MD
2004/03/04
(443) 272-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/11/03
(443) 272-2
Landline
Comcast IP Phone, LLC
2014/07/18
(443) 272-3
Landline
Teleport Communications America - ID - LLC
-
(443) 272-4
Landline
Onvoy, LLC - MD
2012/09/12
(443) 272-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/05/28
(443) 272-6
Landline
Comcast IP Phone, LLC
2013/09/10
(443) 272-7
Landline
Comcast IP Phone, LLC
2008/03/27
(443) 272-8
Landline
Local Access LLC - MD
2015/02/23
(443) 272-9
Wireless
Omnipoint Communications Cap Operations, LLC
2019/03/20
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 405-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 405-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 405-2
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/03
(443) 405-3
Landline
Comcast IP Phone, LLC
2006/09/15
(443) 405-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 405-5
Wireless
Omnipoint Communications Cap Operations, LLC
2021/04/01
(443) 405-6
Landline
Comcast IP Phone, LLC
2018/11/12
(443) 405-7
Landline
Comcast IP Phone, LLC
2011/11/10
(443) 405-8
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 405-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Landline
Paetec Communications, Inc. - CA
-
(443) 426-0
Landline
Paetec Communications, Inc. - CA
-
(443) 426-1
Landline
Paetec Communications, Inc. - CA
-
(443) 426-2
Landline
Level 3 Communications, LLC - AK
2005/02/02
(443) 426-3
Wireless
Onvoy Spectrum, LLC
2021/04/24
(443) 426-4
Landline
Level 3 Communications, LLC - AK
2003/07/29
(443) 426-5
Landline
Us Lec of Maryland, Inc.
2003/02/07
(443) 426-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2006/02/17
(443) 426-7
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2004/06/01
(443) 426-8
Landline
Level 3 Communications, LLC - AK
2006/04/07
(443) 426-9
Landline
Paetec Communications, Inc. - CA
-
Landline
Core Communications, Inc.- MD
-
(443) 431-0
Wireless
Omnipoint Communications Cap Operations, LLC
2020/03/25
(443) 431-1
Landline
Radiantiq LLC
2021/03/23
(443) 431-2
Landline
Core Communications, Inc.- MD
2019/07/15
(443) 431-3
Wireless
New Cingular Wireless PCS, LLC
2017/10/27
(443) 431-4
Wireless
New Cingular Wireless PCS, LLC
2017/10/27
(443) 431-5
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 431-6
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 431-7
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 431-8
Landline
Bandwidth.com CLEC, LLC - MD
2018/09/20
(443) 431-9
Wireless
New Cingular Wireless PCS, LLC
2018/07/30
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/05/10
(443) 565-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 565-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 565-2
Wireless
Omnipoint Communications Cap Operations, LLC
2015/09/09
(443) 565-3
Landline
Twilio International, Inc.
2020/12/01
(443) 565-4
Landline
Onvoy, LLC - MD
2016/03/29
(443) 565-5
Landline
Terra Nova Telecom Inc.
2020/12/30
(443) 565-6
Landline
Onvoy, LLC - MD
2016/03/29
(443) 565-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(443) 565-8
Landline
Peerless Network of Maryland, LLC
2021/02/22
(443) 565-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Landline
Xo Maryland, LLC
2001/02/21
(443) 576-0
Landline
Xo Maryland, LLC
-
(443) 576-1
Landline
Xo Maryland, LLC
-
(443) 576-2
Landline
Onvoy, LLC - MD
2016/02/17
(443) 576-3
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 576-4
Landline
Xo Maryland, LLC
-
(443) 576-5
Landline
Onvoy, LLC - MD
2016/02/17
(443) 576-6
Landline
Core Communications, Inc.- MD
2019/06/10
(443) 576-7
Landline
Core Communications, Inc.- MD
2019/07/15
(443) 576-8
Landline
Local Access LLC - MD
2015/12/07
(443) 576-9
Landline
Telnyx LLC
2017/04/13
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(443) 657-0
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
(443) 657-1
Landline
Local Access LLC - MD
2016/09/15
(443) 657-2
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(443) 657-3
Wireless
Omnipoint Communications Cap Operations, LLC
2014/10/13
(443) 657-4
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 657-5
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 657-6
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 657-7
Landline
Comcast IP Phone, LLC
2015/10/20
(443) 657-8
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 657-9
Landline
Core Communications, Inc.- MD
2018/10/11
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 675-0
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 675-1
Wireless
Omnipoint Communications Cap Operations, LLC
2020/05/12
(443) 675-2
Wireless
New Cingular Wireless PCS, LLC
2020/08/24
(443) 675-3
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 675-4
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 675-5
Unknown
Barr Tell USA, Inc.
2016/11/18
(443) 675-6
Landline
Bandwidth.com CLEC, LLC - MD
2011/05/04
(443) 675-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/05/04
(443) 675-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/01/08
(443) 675-9
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
Wireless
Omnipoint Communications Cap Operations, LLC
2001/06/20
(443) 985-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(443) 985-1
Wireless
Omnipoint Communications Cap Operations, LLC
-
(443) 985-2
Wireless
Omnipoint Communications Cap Operations, LLC
2011/07/11
(443) 985-3
Wireless
Omnipoint Communications Cap Operations, LLC
2013/11/27
(443) 985-4
Wireless
Omnipoint Communications Cap Operations, LLC
2014/08/22
(443) 985-5
Wireless
Omnipoint Communications Cap Operations, LLC
2015/02/17
(443) 985-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(443) 985-7
Wireless
Omnipoint Communications Cap Operations, LLC
2008/09/12
(443) 985-8
Wireless
Omnipoint Communications Cap Operations, LLC
2013/04/23
(443) 985-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/03
(667) 324-2
Landline
Onvoy, LLC - MD
2021/06/16
(667) 324-3
Landline
Onvoy, LLC - MD
2021/06/16
(667) 324-7
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/03
(667) 324-8
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/03
(667) 324-9
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/03