(410) 335
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 344-0
Landline
Verizon Maryland, Inc.
-
(410) 344-1
Landline
Verizon Maryland, Inc.
-
(410) 344-2
Landline
Level 3 Communications, LLC - AK
2008/03/03
(410) 344-3
Wireless
Omnipoint Communications Cap Operations, LLC
2014/05/02
(410) 344-4
Landline
Baltimore-washington Telephone (Bwt)
2015/05/12
(410) 344-5
Landline
Level 3 Communications, LLC - AK
2003/05/14
(410) 344-6
Landline
Comcast IP Phone, LLC
2012/06/25
(410) 344-7
Landline
Level 3 Communications, LLC - AK
2005/12/05
(410) 344-8
Landline
Atx Telecommunications Services, Ltd
2003/02/03
(410) 344-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(410) 630-0
Landline
Core Communications, Inc.- MD
2004/03/01
(410) 630-1
Landline
Xo Maryland, LLC
2005/11/15
(410) 630-2
Landline
Comcast IP Phone, LLC
2005/02/10
(410) 630-3
Landline
Xo Maryland, LLC
2005/07/19
(410) 630-4
Landline
Level 3 Communications, LLC - AK
2004/01/16
(410) 630-5
Landline
Xo Maryland, LLC
2005/07/19
(410) 630-6
Landline
Xo Maryland, LLC
2005/07/19
(410) 630-7
Landline
Xo Maryland, LLC
2005/07/19
(410) 630-8
Landline
Xo Maryland, LLC
2005/11/15
(410) 630-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Us Lec of Maryland, Inc.
-
(443) 228-0
Landline
Us Lec of Maryland, Inc.
-
(443) 228-1
Landline
Us Lec of Maryland, Inc.
-
(443) 228-2
Landline
Twilio International, Inc.
2020/11/25
(443) 228-3
Landline
Bandwidth.com CLEC, LLC - MD
2020/12/22
(443) 228-4
Landline
Xo Maryland, LLC
2005/11/15
(443) 228-5
Landline
Level 3 Communications, LLC - AK
2006/05/01
(443) 228-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(443) 228-7
Landline
Local Access LLC - MD
2016/05/03
(443) 228-8
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
(443) 228-9
Wireless
Onvoy Spectrum, LLC
2021/01/27
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 317-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 317-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 317-2
Landline
Onvoy, LLC - MD
2012/09/12
(443) 317-3
Landline
Bandwidth.com CLEC, LLC - MD
2010/12/13
(443) 317-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 317-5
Landline
Level 3 Communications, LLC - AK
-
(443) 317-6
Landline
Comcast IP Phone, LLC
2015/07/16
(443) 317-7
Wireless
Omnipoint Communications Cap Operations, LLC
2016/06/16
(443) 317-8
Landline
Comcast IP Phone, LLC
2007/04/02
(443) 317-9
Landline
Bandwidth.com CLEC, LLC - MD
2014/03/28
Landline
Teleport Communications America - ID - LLC
-
(443) 489-0
Landline
Xo Maryland, LLC
2001/11/07
(443) 489-1
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 489-2
Landline
Onvoy, LLC - MD
2016/02/25
(443) 489-3
Landline
Ctc Communications Corp. - MD
2007/01/12
(443) 489-4
Landline
Onvoy, LLC - MD
2016/02/25
(443) 489-5
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 489-6
Landline
Bandwidth.com CLEC, LLC - MD
2015/01/14
(443) 489-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(443) 489-8
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 489-9
Landline
Teleport Communications America - ID - LLC
-
Wireless
Omnipoint Communications Cap Operations, LLC
2001/07/23
(443) 554-0
Wireless
Omnipoint Communications Cap Operations, LLC
-
(443) 554-1
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(443) 554-2
Wireless
Omnipoint Communications Cap Operations, LLC
2014/11/13
(443) 554-3
Wireless
Omnipoint Communications Cap Operations, LLC
2015/09/09
(443) 554-4
Wireless
Omnipoint Communications Cap Operations, LLC
2015/11/24
(443) 554-5
Wireless
Omnipoint Communications Cap Operations, LLC
2015/11/24
(443) 554-6
Wireless
Omnipoint Communications Cap Operations, LLC
-
(443) 554-7
Wireless
Omnipoint Communications Cap Operations, LLC
2016/06/16
(443) 554-8
Wireless
Omnipoint Communications Cap Operations, LLC
2008/11/05
(443) 554-9
Wireless
Omnipoint Communications Cap Operations, LLC
-
Landline
Xo Maryland, LLC
-
(443) 581-0
Landline
Onvoy, LLC - MD
2021/02/03
(443) 581-1
Landline
Onvoy, LLC - MD
2021/02/03
(443) 581-2
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 581-3
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 581-4
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 581-5
Wireless
Onvoy Spectrum, LLC
2021/01/27
(443) 581-6
Landline
Core Communications, Inc.- MD
2019/07/12
(443) 581-7
Landline
Core Communications, Inc.- MD
2019/07/12
(443) 581-8
Wireless
Omnipoint Communications Cap Operations, LLC
2019/06/10
(443) 581-9
Landline
Core Communications, Inc.- MD
2019/04/12
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/05/10
(443) 626-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 626-1
Wireless
Onvoy Spectrum, LLC
2020/06/26
(443) 626-2
Landline
Core Communications, Inc.- MD
2019/04/12
(443) 626-3
Wireless
Onvoy Spectrum, LLC
2020/06/26
(443) 626-4
Landline
Bandwidth.com CLEC, LLC - MD
2015/05/05
(443) 626-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 626-6
Landline
Local Access LLC - MD
2015/02/19
(443) 626-7
Wireless
Omnipoint Communications Cap Operations, LLC
2014/09/10
(443) 626-8
Landline
Peerless Network of Maryland, LLC
2020/05/26
(443) 626-9
Wireless
Onvoy Spectrum, LLC
2020/06/26
(667) 344-0
Landline
Telnyx LLC
2017/04/14
(667) 344-1
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 344-2
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 344-3
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 344-4
Landline
Core Communications, Inc.- MD
2019/02/20
(667) 344-5
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 344-6
Landline
Core Communications, Inc.- MD
2019/03/14
(667) 344-7
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 344-8
Wireless
Omnipoint Communications Cap Operations, LLC
2018/12/20
(667) 344-9
Landline
Core Communications, Inc.- MD
2019/03/14
Landline
Radiantiq LLC
2021/03/25
(667) 657-0
Wireless
Omnipoint Communications Cap Operations, LLC
2021/06/30
(667) 657-1
Landline
Bandwidth.com CLEC, LLC - MD
2021/07/20
(667) 657-6
Landline
Radiantiq LLC
2021/03/26