(410) 222
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 514-0
Landline
Atx Telecommunications Services, Ltd
2003/02/03
(410) 514-1
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2004/01/21
(410) 514-2
Landline
Core Communications, Inc.- MD
2004/03/04
(410) 514-3
Landline
Onvoy, LLC - MD
2016/02/17
(410) 514-4
Landline
Ctc Communications Corp. - MD
2007/07/02
(410) 514-5
Landline
Level 3 Communications, LLC - AK
2005/09/26
(410) 514-6
Landline
Level 3 Communications, LLC - AK
2006/05/01
(410) 514-7
Landline
Verizon Maryland, Inc.
-
(410) 514-8
Landline
Level 3 Communications, LLC - AK
2005/04/11
(410) 514-9
Landline
Verizon Maryland, Inc.
-
(410) 519
Landline
Verizon Maryland, Inc.
-
(410) 551
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 729-0
Landline
Verizon Maryland, Inc.
-
(410) 729-1
Landline
Verizon Maryland, Inc.
-
(410) 729-2
Landline
Verizon Maryland, Inc.
-
(410) 729-3
Landline
Verizon Maryland, Inc.
-
(410) 729-4
Landline
Verizon Maryland, Inc.
-
(410) 729-5
Landline
Verizon Maryland, Inc.
-
(410) 729-6
Landline
Onvoy, LLC - MD
2016/02/17
(410) 729-7
Landline
Verizon Maryland, Inc.
-
(410) 729-8
Landline
Verizon Maryland, Inc.
-
(410) 729-9
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(410) 846-0
Landline
Level 3 Communications, LLC - AK
2005/02/02
(410) 846-1
Landline
Level 3 Communications, LLC - AK
2007/06/07
(410) 846-2
Landline
Bandwidth.com CLEC, LLC - MD
2012/07/16
(410) 846-3
Landline
Level 3 Communications, LLC - AK
2007/11/08
(410) 846-4
Landline
Level 3 Communications, LLC - AK
2003/07/29
(410) 846-5
Landline
Comcast IP Phone, LLC
2005/02/11
(410) 846-6
Landline
Peerless Network of Maryland, LLC
2012/09/17
(410) 846-7
Landline
Peerless Network of Maryland, LLC
2012/09/17
(410) 846-8
Landline
Peerless Network of Maryland, LLC
2012/09/17
(410) 846-9
Landline
Mcimetro Access Transmission Services LLC
-
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 921-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(410) 921-1
Landline
Bandwidth.com CLEC, LLC - MD
2010/08/04
(410) 921-2
Landline
Bandwidth.com CLEC, LLC - MD
2013/01/03
(410) 921-3
Landline
Bandwidth.com CLEC, LLC - MD
2013/01/03
(410) 921-4
Landline
Level 3 Telecom of Maryland, LLC - MD
-
(410) 921-5
Wireless
T-mobile USA, Inc.
2014/07/01
(410) 921-6
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(410) 921-7
Landline
Bandwidth.com CLEC, LLC - MD
2011/07/22
(410) 921-8
Wireless
T-mobile USA, Inc.
2014/08/07
(410) 921-9
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/31
(410) 969
Landline
Verizon Maryland, Inc.
-
(410) 987
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(443) 274-0
Landline
Level 3 Communications, LLC - AK
2008/02/14
(443) 274-1
Landline
Paetec Communications, Inc. - CA
2005/09/29
(443) 274-2
Landline
Comcast IP Phone, LLC
2007/09/10
(443) 274-3
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 274-4
Landline
Onvoy, LLC - MD
2012/02/06
(443) 274-5
Landline
Bandwidth.com CLEC, LLC - MD
2013/03/25
(443) 274-6
Landline
Lightwave Communications, LLC - MD
2005/06/08
(443) 274-7
Landline
Bandwidth.com CLEC, LLC - MD
2013/03/25
(443) 274-8
Wireless
Cellco Partnership DBA Verizon Wireless
2016/04/06
(443) 274-9
Landline
Verizon Maryland, Inc.
-
Landline
Xo Maryland, LLC
-
(443) 308-0
Landline
Xo Maryland, LLC
-
(443) 308-1
Landline
Xo Maryland, LLC
-
(443) 308-2
Landline
Xo Maryland, LLC
-
(443) 308-3
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(443) 308-4
Landline
Xo Maryland, LLC
-
(443) 308-5
Landline
Xo Maryland, LLC
-
(443) 308-6
Wireless
T-mobile USA, Inc.
2019/11/05
(443) 308-7
Wireless
T-mobile USA, Inc.
2017/09/07
(443) 308-8
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(443) 308-9
Landline
Xo Maryland, LLC
-
Landline
Xo Maryland, LLC
-
(443) 363-0
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 363-1
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 363-2
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 363-3
Wireless
T-mobile USA, Inc.
2019/03/07
(443) 363-4
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 363-5
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 363-6
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 363-7
Wireless
T-mobile USA, Inc.
2018/09/11
(443) 363-8
Landline
Telnyx LLC
2017/04/13
(443) 363-9
Wireless
T-mobile USA, Inc.
2020/12/07
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 599-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 599-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 599-2
Wireless
T-mobile USA, Inc.
2013/05/22
(443) 599-3
Wireless
T-mobile USA, Inc.
2013/05/22
(443) 599-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 599-5
Wireless
T-mobile USA, Inc.
2020/08/13
(443) 599-6
Wireless
T-mobile USA, Inc.
2015/01/08
(443) 599-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(443) 599-8
Landline
Bandwidth.com CLEC, LLC - MD
2011/05/04
(443) 599-9
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
Landline
Teleport Communications America - ID - LLC
-
(443) 679-0
Wireless
New Cingular Wireless PCS, LLC
2020/04/10
(443) 679-1
Landline
Us Lec of Maryland, Inc.
2002/03/28
(443) 679-2
Wireless
T-mobile USA, Inc.
2018/01/15
(443) 679-3
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/14
(443) 679-4
Landline
Comcast IP Phone, LLC
2016/11/22
(443) 679-5
Landline
Level 3 Communications, LLC - AK
2008/06/06
(443) 679-6
Wireless
Cellco Partnership DBA Verizon Wireless
2012/05/21
(443) 679-7
Wireless
Cellco Partnership DBA Verizon Wireless
2015/06/01
(443) 679-8
Wireless
Cellco Partnership DBA Verizon Wireless
2013/12/05
(443) 679-9
Landline
Teleport Communications America - ID - LLC
-
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 685-0
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 685-2
Landline
Twilio International, Inc.
2020/12/01
(443) 685-3
Landline
Comcast IP Phone, LLC
2014/05/07
(443) 685-4
Wireless
Cellco Partnership DBA Verizon Wireless
2011/11/07
(443) 685-5
Wireless
Cellco Partnership DBA Verizon Wireless
2011/11/07
(443) 685-6
Wireless
New Cingular Wireless PCS, LLC
2020/04/10
(443) 685-7
Landline
Local Access LLC - MD
2016/09/15
(443) 685-8
Wireless
T-mobile USA, Inc.
2016/11/01
(443) 685-9
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2001/05/10
(443) 688-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 688-1
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 688-2
Wireless
New Cingular Wireless PCS, LLC
2020/04/15
(443) 688-3
Wireless
New Cingular Wireless PCS, LLC
2020/04/15
(443) 688-4
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 688-5
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 688-6
Landline
Comcast IP Phone, LLC
2006/09/26
(443) 688-7
Landline
Core Communications, Inc.- MD
2018/10/11
(443) 688-8
Wireless
New Cingular Wireless PCS, LLC
2020/04/15
(443) 688-9
Landline
Onvoy, LLC - MD
2021/02/03
Landline
Verizon Maryland, Inc.
-
(443) 734-0
Landline
Local Access LLC - MD
2013/08/12
(443) 734-1
Landline
Onvoy, LLC - MD
2014/08/08
(443) 734-2
Wireless
T-mobile USA, Inc.
2015/02/10
(443) 734-3
Landline
Onvoy, LLC - MD
2015/12/23
(443) 734-4
Wireless
New Cingular Wireless PCS, LLC
2018/03/05
(443) 734-5
Wireless
T-mobile USA, Inc.
2015/02/17
(443) 734-6
Wireless
New Cingular Wireless PCS, LLC
2018/10/17
(443) 734-7
Wireless
New Cingular Wireless PCS, LLC
2017/05/01
(443) 734-8
Wireless
New Cingular Wireless PCS, LLC
2017/05/01
(443) 734-9
Landline
Verizon Maryland, Inc.
-
Landline
Xo Maryland, LLC
-
(443) 795-0
Landline
Xo Maryland, LLC
-
(443) 795-1
Wireless
Cellco Partnership DBA Verizon Wireless
2017/10/19
(443) 795-2
Wireless
New Cingular Wireless PCS, LLC
2019/09/11
(443) 795-3
Landline
Xo Maryland, LLC
-
(443) 795-4
Landline
Comcast IP Phone, LLC
2012/06/11
(443) 795-5
Landline
Xo Maryland, LLC
-
(443) 795-6
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
2004/06/01
(443) 795-7
Unknown
Barr Tell USA, Inc.
2016/11/18
(443) 795-8
Wireless
Cellco Partnership DBA Verizon Wireless
2017/12/11
(443) 795-9
Landline
Peerless Network of Maryland, LLC
2018/10/19
Landline
Radiantiq LLC
2021/03/25
(667) 356-0
Landline
Bandwidth.com CLEC, LLC - MD
2021/04/28
(667) 356-1
Wireless
New Cingular Wireless PCS, LLC
2021/07/01
(667) 356-2
Wireless
New Cingular Wireless PCS, LLC
2021/07/01
(667) 356-3
Wireless
Onvoy Spectrum, LLC
2021/04/24
(667) 356-4
Landline
Onvoy, LLC - MD
2021/06/16
(667) 356-5
Landline
Onvoy, LLC - MD
2021/06/16
(667) 356-7
Landline
Radiantiq LLC
2021/03/26