(410) 239
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 517-0
Landline
Verizon Maryland, Inc.
-
(410) 517-1
Landline
Verizon Maryland, Inc.
-
(410) 517-2
Landline
Verizon Maryland, Inc.
-
(410) 517-3
Landline
Verizon Maryland, Inc.
-
(410) 517-4
Wireless
Sprint Spectrum, L.P.
2006/06/14
(410) 517-5
Landline
Verizon Maryland, Inc.
-
(410) 517-6
Landline
Vdl, Inc. DBA Global Telecom Brokers - MD
2003/10/17
(410) 517-7
Landline
Onvoy, LLC - MD
2016/02/23
(410) 517-8
Landline
Verizon Maryland, Inc.
-
(410) 517-9
Wireless
Sprint Spectrum, L.P.
2006/04/05
(410) 526
Landline
Verizon Maryland, Inc.
-
Landline
Mcimetro Access Transmission Services LLC
-
(410) 702-0
Wireless
New Cingular Wireless PCS, LLC
2021/06/30
(410) 702-1
Wireless
Onvoy Spectrum, LLC
2021/04/24
(410) 702-2
Landline
Core Communications, Inc.- MD
2004/03/04
(410) 702-3
Wireless
New Cingular Wireless PCS, LLC
2021/06/30
(410) 702-4
Landline
Level 3 Communications, LLC - AK
2003/07/29
(410) 702-5
Landline
Level 3 Communications, LLC - AK
2005/01/05
(410) 702-6
Landline
Broadview Networks, Inc. - MD
2009/08/10
(410) 702-7
Landline
Comcast IP Phone, LLC
2005/02/11
(410) 702-8
Wireless
T-mobile USA, Inc.
2016/09/07
(410) 702-9
Landline
Mcimetro Access Transmission Services LLC
-
(410) 833
Landline
Verizon Maryland, Inc.
-
Landline
Verizon Maryland, Inc.
-
(410) 840-0
Landline
Verizon Maryland, Inc.
-
(410) 840-1
Landline
Terra Nova Telecom Inc.
2020/12/30
(410) 840-2
Landline
Verizon Maryland, Inc.
-
(410) 840-3
Landline
Verizon Maryland, Inc.
-
(410) 840-4
Landline
Verizon Maryland, Inc.
-
(410) 840-5
Landline
Verizon Maryland, Inc.
-
(410) 840-6
Landline
Ctc Communications Corp. - MD
2005/11/16
(410) 840-7
Landline
Level 3 Communications, LLC - AK
2005/12/05
(410) 840-8
Landline
Verizon Maryland, Inc.
-
(410) 840-9
Landline
Verizon Maryland, Inc.
-
(410) 876
Landline
Verizon Maryland, Inc.
-
Landline
Teleport Communications America - ID - LLC
-
(443) 273-0
Landline
Teleport Communications America - ID - LLC
-
(443) 273-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/06/07
(443) 273-2
Landline
Core Communications, Inc.- MD
2019/02/20
(443) 273-3
Landline
Comcast IP Phone, LLC
2014/08/28
(443) 273-4
Wireless
T-mobile USA, Inc.
2014/09/04
(443) 273-5
Landline
Onvoy, LLC - MD
2012/09/12
(443) 273-6
Wireless
T-mobile USA, Inc.
2014/09/04
(443) 273-7
Landline
Centurylink Communications, LLC LA
2014/05/27
(443) 273-8
Landline
Local Access LLC - MD
2015/12/07
(443) 273-9
Landline
Teleport Communications America - ID - LLC
-
Wireless
New Cingular Wireless PCS, LLC
-
(443) 381-1
Wireless
T-mobile USA, Inc.
2019/09/19
(443) 381-2
Wireless
New Cingular Wireless PCS, LLC
2019/12/20
(443) 381-3
Wireless
New Cingular Wireless PCS, LLC
2017/10/27
(443) 381-4
Wireless
New Cingular Wireless PCS, LLC
2017/10/27
(443) 381-5
Wireless
T-mobile USA, Inc.
2018/02/20
(443) 381-6
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 381-7
Landline
Core Communications, Inc.- MD
2018/05/23
(443) 381-8
Wireless
T-mobile USA, Inc.
2018/01/15
(443) 381-9
Wireless
New Cingular Wireless PCS, LLC
2019/03/06
Landline
Paetec Communications, Inc. - CA
-
(443) 522-0
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(443) 522-1
Wireless
T-mobile USA, Inc.
2013/05/22
(443) 522-2
Landline
Comcast IP Phone, LLC
2012/04/27
(443) 522-3
Wireless
T-mobile USA, Inc.
2013/09/17
(443) 522-4
Wireless
T-mobile USA, Inc.
2014/03/03
(443) 522-5
Wireless
T-mobile USA, Inc.
2014/03/03
(443) 522-6
Wireless
T-mobile USA, Inc.
2014/07/23
(443) 522-7
Wireless
T-mobile USA, Inc.
2014/07/23
(443) 522-8
Wireless
T-mobile USA, Inc.
2014/11/07
(443) 522-9
Landline
Paetec Communications, Inc. - CA
-
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 590-0
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 590-1
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 590-3
Landline
Level 3 Communications, LLC - AK
2005/12/05
(443) 590-4
Landline
Global Crossing Local Services, Inc. - KY
-
(443) 590-5
Landline
Mcimetro Access Transmission Services LLC
2008/09/11
(443) 590-6
Wireless
T-mobile USA, Inc.
2016/11/02
(443) 590-7
Landline
Onvoy, LLC - MD
2016/02/23
(443) 590-8
Unknown
Barr Tell USA, Inc.
2016/11/18
(443) 590-9
Landline
Onvoy, LLC - MD
2016/02/23
Landline
Xo Maryland, LLC
2001/02/20
(443) 650-0
Landline
Xo Maryland, LLC
-
(443) 650-1
Landline
Xo Maryland, LLC
-
(443) 650-2
Landline
Local Access LLC - MD
2016/09/15
(443) 650-3
Landline
Bandwidth.com CLEC, LLC - MD
2016/08/09
(443) 650-4
Wireless
T-mobile USA, Inc.
2020/08/13
(443) 650-5
Landline
Us Lec of Maryland, Inc.
2003/02/07
(443) 650-6
Landline
Core Communications, Inc.- MD
2019/04/15
(443) 650-7
Landline
Telnyx LLC
2017/04/13
(443) 650-8
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
(443) 650-9
Landline
Core Communications, Inc.- MD
2018/05/23
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 712-0
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 712-1
Landline
Level 3 Communications, LLC - AK
2002/04/17
(443) 712-2
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
(443) 712-3
Wireless
T-mobile USA, Inc.
2017/01/03
(443) 712-4
Wireless
T-mobile USA, Inc.
2017/03/01
(443) 712-5
Landline
Xo Maryland, LLC
2007/07/02
(443) 712-6
Wireless
T-mobile USA, Inc.
2015/12/09
(443) 712-7
Landline
Bandwidth.com CLEC, LLC - MD
2010/08/05
(443) 712-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(443) 712-9
Landline
Cavalier Telephone Mid-atlantic, LLC - MD
-
Wireless
Sprint Spectrum, L.P.
2002/07/02
(443) 744-0
Wireless
Sprint Spectrum, L.P.
-
(443) 744-1
Wireless
Sprint Spectrum, L.P.
-
(443) 744-2
Wireless
Sprint Spectrum, L.P.
-
(443) 744-3
Wireless
Sprint Spectrum, L.P.
-
(443) 744-4
Wireless
Sprint Spectrum, L.P.
-
(443) 744-5
Wireless
Sprint Spectrum, L.P.
-
(443) 744-6
Wireless
Sprint Spectrum, L.P.
-
(443) 744-7
Wireless
Sprint Spectrum, L.P.
-
(443) 744-8
Landline
Comcast IP Phone, LLC
2016/12/30
(443) 744-9
Wireless
Sprint Spectrum, L.P.
-
Wireless
T-mobile USA, Inc.
-
(443) 881-0
Wireless
T-mobile USA, Inc.
2016/02/23
(443) 881-1
Landline
Local Access LLC - MD
2015/02/23
(443) 881-2
Landline
Paetec Communications, Inc. - CA
2006/12/15
(443) 881-3
Wireless
T-mobile USA, Inc.
2017/09/20
(443) 881-4
Landline
Comcast IP Phone, LLC
2007/05/24
(443) 881-5
Wireless
T-mobile USA, Inc.
2016/02/23
(443) 881-6
Wireless
T-mobile USA, Inc.
2017/12/13
(443) 881-7
Landline
Core Communications, Inc.- MD
2019/04/15
(443) 881-8
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 881-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Landline
Mcimetro Access Transmission Services LLC
2018/12/21
(667) 259-0
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 259-1
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 259-2
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 259-3
Landline
Mcimetro Access Transmission Services LLC
2018/12/27
(667) 259-4
Landline
Mcimetro Access Transmission Services LLC
2018/12/27
(667) 259-5
Landline
Mcimetro Access Transmission Services LLC
2018/12/27
(667) 259-6
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 259-7
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 259-8
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 259-9
Landline
Core Communications, Inc.- MD
2019/04/16
Landline
Mcimetro Access Transmission Services LLC
2020/09/22
(667) 296-0
Landline
Onvoy, LLC - MD
2021/02/04
(667) 296-1
Landline
Onvoy, LLC - MD
2021/02/04
(667) 296-2
Landline
Mcimetro Access Transmission Services LLC
2020/09/23
(667) 296-3
Landline
Mcimetro Access Transmission Services LLC
2020/09/23
(667) 296-4
Landline
Mcimetro Access Transmission Services LLC
2020/09/23
(667) 296-5
Landline
Twilio International, Inc.
2020/12/01
(667) 296-6
Landline
Mcimetro Access Transmission Services LLC
2021/01/26
(667) 296-7
Landline
Mcimetro Access Transmission Services LLC
2021/01/26
(667) 296-8
Landline
Mcimetro Access Transmission Services LLC
2021/01/26
(667) 296-9
Landline
Radiantiq LLC
2021/03/23