(410) 392
Landline
Verizon Maryland, Inc.
-
(410) 398
Landline
Verizon Maryland, Inc.
-
Wireless
New Cingular Wireless PCS, LLC
-
(410) 441-0
Wireless
New Cingular Wireless PCS, LLC
-
(410) 441-1
Wireless
New Cingular Wireless PCS, LLC
-
(410) 441-2
Landline
Atx Telecommunications Services, Ltd
2003/02/03
(410) 441-3
Landline
Mcimetro Access Transmission Services LLC
2007/01/12
(410) 441-4
Wireless
New Cingular Wireless PCS, LLC
-
(410) 441-5
Landline
Bandwidth.com CLEC, LLC - MD
2010/08/05
(410) 441-6
Wireless
New Cingular Wireless PCS, LLC
2010/09/01
(410) 441-7
Landline
Quantum Telecommunications, Inc. - MD
2003/10/22
(410) 441-8
Landline
Armstrong Telecommunications, Inc. - KY
2008/06/02
(410) 441-9
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
-
(410) 506-0
Landline
Verizon Maryland, Inc.
2002/11/15
(410) 506-1
Landline
Verizon Maryland, Inc.
2002/11/15
(410) 506-2
Landline
Verizon Maryland, Inc.
-
(410) 506-3
Landline
Verizon Maryland, Inc.
-
(410) 506-4
Landline
Verizon Maryland, Inc.
-
(410) 506-5
Landline
Verizon Maryland, Inc.
-
(410) 506-6
Landline
Verizon Maryland, Inc.
-
(410) 506-7
Landline
Verizon Maryland, Inc.
-
(410) 506-8
Landline
Verizon Maryland, Inc.
-
(410) 506-9
Landline
Verizon Maryland, Inc.
2002/11/15
Landline
Verizon Maryland, Inc.
-
(410) 620-0
Landline
Verizon Maryland, Inc.
-
(410) 620-1
Landline
Verizon Maryland, Inc.
-
(410) 620-2
Landline
Verizon Maryland, Inc.
-
(410) 620-3
Landline
Verizon Maryland, Inc.
-
(410) 620-4
Landline
Verizon Maryland, Inc.
-
(410) 620-5
Landline
Verizon Maryland, Inc.
-
(410) 620-6
Landline
Verizon Maryland, Inc.
-
(410) 620-7
Landline
Verizon Maryland, Inc.
-
(410) 620-8
Wireless
T-mobile USA, Inc.
2016/02/09
(410) 620-9
Landline
Verizon Maryland, Inc.
-
(410) 920
Wireless
New Cingular Wireless PCS, LLC
-
Landline
Verizon Maryland, Inc.
-
(410) 996-0
Landline
Verizon Maryland, Inc.
-
(410) 996-1
Landline
Verizon Maryland, Inc.
-
(410) 996-2
Landline
Verizon Maryland, Inc.
-
(410) 996-3
Landline
Verizon Maryland, Inc.
-
(410) 996-4
Landline
Bandwidth.com CLEC, LLC - MD
2010/09/28
(410) 996-5
Landline
Verizon Maryland, Inc.
-
(410) 996-6
Landline
Verizon Maryland, Inc.
-
(410) 996-7
Landline
Verizon Maryland, Inc.
-
(410) 996-8
Landline
Verizon Maryland, Inc.
-
(410) 996-9
Landline
Verizon Maryland, Inc.
-
Wireless
Omnipoint Communications Enterprises, L.P.
-
(443) 207-0
Wireless
Omnipoint Communications Enterprises, L.P.
-
(443) 207-1
Wireless
Omnipoint Communications Enterprises, L.P.
-
(443) 207-2
Wireless
Omnipoint Communications Enterprises, L.P.
-
(443) 207-3
Wireless
Omnipoint Communications Enterprises, L.P.
2011/02/21
(443) 207-4
Wireless
Omnipoint Communications Enterprises, L.P.
2013/11/07
(443) 207-5
Landline
Comcast IP Phone, LLC
2012/01/26
(443) 207-6
Wireless
Omnipoint Communications Enterprises, L.P.
-
(443) 207-7
Wireless
T-mobile USA, Inc.
2014/12/03
(443) 207-8
Landline
Comcast IP Phone, LLC
2012/02/08
(443) 207-9
Wireless
Omnipoint Communications Enterprises, L.P.
-
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-0
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-1
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-2
Wireless
T-mobile USA, Inc.
2014/12/03
(443) 245-3
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-4
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-5
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-6
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-7
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-8
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 245-9
Landline
Cavalier Telephone, LLC (Mid-atlantic) - DE
-
(443) 246
Landline
Core Communications, Inc.- MD
-
(443) 309
Wireless
Sprint Spectrum, L.P.
-
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-0
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-1
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-2
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-3
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-4
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-5
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-6
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-7
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 350-8
Wireless
Sprint Spectrum, L.P.
2005/04/12
(443) 350-9
Landline
Comcast IP Phone, LLC
2005/06/30
Landline
Teleport Communications America - ID - LLC
-
(443) 406-0
Wireless
New Cingular Wireless PCS, LLC
2007/01/12
(443) 406-1
Landline
Paetec Communications, Inc. - CA
2002/05/31
(443) 406-2
Landline
Level 3 Communications, LLC - AK
2006/02/06
(443) 406-3
Landline
Comcast IP Phone, LLC
2015/10/27
(443) 406-4
Landline
Level 3 Communications, LLC - AK
2011/10/12
(443) 406-5
Wireless
New Cingular Wireless PCS, LLC
2007/01/12
(443) 406-6
Landline
Bandwidth.com CLEC, LLC - MD
2008/11/12
(443) 406-7
Landline
Comcast IP Phone, LLC
2007/02/15
(443) 406-8
Landline
Bandwidth.com CLEC, LLC - MD
2010/01/26
(443) 406-9
Landline
Teleport Communications America - ID - LLC
-
Wireless
Sprint Spectrum, L.P.
-
(443) 466-0
Wireless
Sprint Spectrum, L.P.
-
(443) 466-1
Wireless
Sprint Spectrum, L.P.
-
(443) 466-2
Wireless
Sprint Spectrum, L.P.
2007/08/22
(443) 466-3
Wireless
Sprint Spectrum, L.P.
-
(443) 466-4
Wireless
Sprint Spectrum, L.P.
-
(443) 466-5
Wireless
Sprint Spectrum, L.P.
-
(443) 466-6
Wireless
Sprint Spectrum, L.P.
-
(443) 466-7
Wireless
Sprint Spectrum, L.P.
-
(443) 466-8
Wireless
Sprint Spectrum, L.P.
-
(443) 466-9
Wireless
Sprint Spectrum, L.P.
-
Landline
Level 3 Communications, LLC - AK
-
(443) 485-1
Landline
Bandwidth.com CLEC, LLC - MD
2011/01/31
(443) 485-2
Landline
AT&T - Local
2006/07/25
(443) 485-5
Landline
Level 3 Communications, LLC - AK
2008/05/06
(443) 485-6
Landline
Comcast IP Phone, LLC
2007/10/01
(443) 485-7
Wireless
New Cingular Wireless PCS, LLC
2011/01/31
(443) 485-8
Wireless
Sprint Spectrum, L.P.
2011/01/31
(443) 485-9
Landline
Terra Nova Telecom Inc.
2021/06/21
(443) 553
Wireless
Cellco Partnership DBA Verizon Wireless
-
Landline
Ctc Communications Corp. - MD
-
(443) 593-0
Landline
Local Access LLC - MD
2015/12/07
(443) 593-1
Landline
Ctc Communications Corp. - MD
-
(443) 593-2
Wireless
Cellco Partnership DBA Verizon Wireless
2016/01/25
(443) 593-3
Landline
Comcast IP Phone, LLC
2014/08/28
(443) 593-4
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/23
(443) 593-5
Landline
Bandwidth.com CLEC, LLC - MD
2015/04/23
(443) 593-6
Landline
Local Access LLC - MD
2015/02/23
(443) 593-7
Landline
Centurylink Communications, LLC LA
2014/05/14
(443) 593-8
Wireless
Omnipoint Communications Enterprises, L.P.
2014/01/13
(443) 593-9
Wireless
Omnipoint Communications Enterprises, L.P.
2014/01/13
Wireless
Cellco Partnership DBA Verizon Wireless
2001/04/20
(443) 907-0
Wireless
Cellco Partnership DBA Verizon Wireless
2006/10/04
(443) 907-1
Landline
Us Lec of Maryland, Inc.
2004/01/15
(443) 907-2
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 907-3
Wireless
Cellco Partnership DBA Verizon Wireless
2004/06/04
(443) 907-4
Wireless
Cellco Partnership DBA Verizon Wireless
2007/04/04
(443) 907-5
Wireless
Cellco Partnership DBA Verizon Wireless
2007/07/03
(443) 907-6
Wireless
Cellco Partnership DBA Verizon Wireless
2005/07/07
(443) 907-7
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 907-8
Wireless
Cellco Partnership DBA Verizon Wireless
-
(443) 907-9
Wireless
Cellco Partnership DBA Verizon Wireless
-
Wireless
New Cingular Wireless PCS, LLC
2011/09/07
(443) 941-0
Landline
Onvoy, LLC - MD
2012/09/11
(443) 941-1
Landline
Baltimore-washington Telephone (Bwt)
2015/05/18
(443) 941-2
Landline
Idt America, Corp. - MD
2011/12/08
(443) 941-3
Landline
Telnyx LLC
2021/02/05
(443) 941-4
Wireless
Cellco Partnership DBA Verizon Wireless
2014/12/29
(443) 941-5
Wireless
Omnipoint Communications Enterprises, L.P.
2016/02/22
(443) 941-6
Wireless
Omnipoint Communications Enterprises, L.P.
2015/03/17
(443) 941-7
Wireless
New Cingular Wireless PCS, LLC
2011/11/15
(443) 941-8
Wireless
New Cingular Wireless PCS, LLC
2011/11/15
(443) 941-9
Landline
Peerless Network of Maryland, LLC
2013/04/04
Wireless
New Cingular Wireless PCS, LLC
2002/07/02
(443) 945-0
Wireless
New Cingular Wireless PCS, LLC
-
(443) 945-1
Wireless
New Cingular Wireless PCS, LLC
-
(443) 945-2
Wireless
Cellco Partnership DBA Verizon Wireless
2007/11/28
(443) 945-3
Wireless
Cellco Partnership DBA Verizon Wireless
2008/07/03
(443) 945-4
Wireless
Cellco Partnership DBA Verizon Wireless
2008/09/03
(443) 945-5
Wireless
Cellco Partnership DBA Verizon Wireless
2008/02/05
(443) 945-6
Wireless
Cellco Partnership DBA Verizon Wireless
2009/03/04
(443) 945-7
Wireless
Cellco Partnership DBA Verizon Wireless
2010/03/04
(443) 945-8
Wireless
Cellco Partnership DBA Verizon Wireless
2013/09/04
(443) 945-9
Landline
Bandwidth.com CLEC, LLC - MD
2011/06/07
Wireless
T-mobile USA, Inc.
2010/12/13
(443) 993-0
Landline
Peerless Network of Maryland, LLC
2013/04/04
(443) 993-1
Wireless
T-mobile USA, Inc.
2012/09/13
(443) 993-2
Wireless
Sprint Spectrum, L.P.
2012/09/25
(443) 993-3
Wireless
New Cingular Wireless PCS, LLC
2011/05/06
(443) 993-4
Wireless
New Cingular Wireless PCS, LLC
2011/05/06
(443) 993-5
Landline
Onvoy, LLC - MD
2014/10/14
(443) 993-6
Wireless
Sprint Spectrum, L.P.
2011/06/27
(443) 993-7
Wireless
Sprint Spectrum, L.P.
2011/06/27
(443) 993-8
Landline
Onvoy, LLC - MD
2014/10/14
(443) 993-9
Wireless
T-mobile USA, Inc.
2010/12/16
Landline
Onvoy, LLC - MD
2016/02/17
(667) 202-0
Landline
Onvoy, LLC - MD
2016/02/18
(667) 202-1
Landline
Onvoy, LLC - MD
2016/02/18
(667) 202-2
Landline
Hd Carrier LLC
2016/04/20
(667) 202-3
Landline
Hd Carrier LLC
2016/04/20
(667) 202-4
Landline
Hd Carrier LLC
2016/04/20
(667) 202-5
Landline
Hd Carrier LLC
2016/04/20
(667) 202-6
Landline
Hd Carrier LLC
2016/04/20
(667) 202-7
Landline
Hd Carrier LLC
2016/04/20
(667) 202-8
Landline
Hd Carrier LLC
2016/04/20
(667) 202-9
Landline
Hd Carrier LLC
2016/04/20
Landline
Comcast IP Phone, LLC
2016/09/27
(667) 215-0
Landline
Comcast IP Phone, LLC
2016/09/28
(667) 215-1
Unknown
Barr Tell USA, Inc.
2016/11/18
(667) 215-2
Wireless
Onvoy Spectrum, LLC
2021/04/23
(667) 215-3
Wireless
Cellco Partnership DBA Verizon Wireless
2017/08/22
(667) 215-5
Landline
Telnyx LLC
2017/03/02
(667) 215-6
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 215-7
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 215-8
Landline
Onvoy, LLC - MD
2018/01/29
(667) 215-9
Landline
Core Communications, Inc.- MD
2019/04/16
Landline
Core Communications, Inc.- MD
2018/10/15
(667) 269-0
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-1
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-2
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-3
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-4
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-5
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-6
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-7
Landline
Core Communications, Inc.- MD
2018/10/17
(667) 269-8
Landline
Core Communications, Inc.- MD
2019/03/14
(667) 269-9
Landline
Local Access LLC - MD
2019/03/27
Landline
Fractel, LLC
2020/07/15
(667) 577-0
Landline
Bandwidth.com CLEC, LLC - MD
2020/12/11
(667) 577-1
Landline
Bandwidth.com CLEC, LLC - MD
2020/12/11
(667) 577-4
Landline
Radiantiq LLC
2021/03/23
(667) 577-5
Landline
Twilio International, Inc.
2020/11/30
(667) 577-6
Landline
Onvoy, LLC - MD
2021/02/04
(667) 577-7
Landline
Fractel, LLC
2020/07/20
(667) 577-8
Landline
Onvoy, LLC - MD
2021/02/04
(667) 577-9
Landline
Onvoy, LLC - MD
2021/02/04
Wireless
Omnipoint Communications Enterprises, L.P.
2016/05/23
(667) 706-0
Landline
Core Communications, Inc.- MD
2019/04/16
(667) 706-1
Landline
Wide Voice, LLC - MD
2016/08/12
(667) 706-2
Landline
Wide Voice, LLC - MD
2016/08/12
(667) 706-3
Landline
Wide Voice, LLC - MD
2016/08/12
(667) 706-4
Landline
Wide Voice, LLC - MD
2016/08/12
(667) 706-5
Landline
Wide Voice, LLC - MD
2016/08/12
(667) 706-6
Landline
Wide Voice, LLC - MD
2016/08/12
(667) 706-7
Wireless
T-mobile USA, Inc.
2016/08/23
(667) 706-8
Landline
Local Access LLC - MD
2016/09/15
(667) 706-9
Wireless
Omnipoint Communications Enterprises, L.P.
2016/05/24