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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-940 1 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-940 2 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-940 3 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-15   
443-940 4 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-940 5 Pikesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-940 6 Pikesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-940 7 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-10-03   
443-940 8 Pikesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-12   
443-940 9 Pikesville MD   829J PAETEC ITEL, LLC 238      
443-941 A Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-941 0 Elkton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-07   
443-941 1 Elkton MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-11   
443-941 2 Elkton MD BLTMMDCH3MD  228C IDT AMERICA, CORP. - MD 238   2012-01-08   
443-941 3 Elkton MD BLTMMDCHX7X  073H TELNYX LLC 238   2021-03-04   
443-941 4 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-03-01   
443-941 5 Elkton MD BLTMMDCH40Z  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2016-03-29   
443-941 6 Elkton MD BLTMMDCH40Z  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 238   2015-04-12   
443-941 7 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-11-28   
443-941 8 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-11-28   
443-941 9 Elkton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-942 A Severna Park MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-942 0 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2007-06-27   
443-942 1 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2007-06-27   
443-942 2 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2007-06-27   
443-942 3 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2007-06-27   
443-942 4 Severna Park MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-12-27   
443-942 5 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-12-27   
443-942 6 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-07-16   
443-942 7 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-07-16   
443-942 8 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2008-02-22   
443-942 9 Severna Park MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-943 A Sparrows Point MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-943 0 Sparrows Point MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-943 1 Sparrows Point MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-943 2 Sparrows Point MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-943 3 Sparrows Point MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-06-14   
443-943 4 Sparrows Point MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-07-04   
443-943 5 Sparrows Point MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-10-04   
443-943 6 Sparrows Point MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2014-12-19   
443-943 7 Sparrows Point MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2015-03-06   
443-943 8 Sparrows Point MD   515J IP HORIZON LLC 238   2015-03-23   
443-943 9 Sparrows Point MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-944 A Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
443-944 0 Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2006-07-30   
443-944 1 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-11-02   
443-944 2 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-11-02   
443-944 3 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-01-02   
443-944 4 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-02-02   
443-944 5 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-04-02   
443-944 6 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-05-03   
443-944 7 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-06-01   
443-944 8 Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2007-01-08   
443-944 9 Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2007-01-08   
443-945 A Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-945 0 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-945 1 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-945 2 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-12-14   
443-945 3 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-08-01   
443-945 4 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-10-03   
443-945 5 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-03-03   
443-945 6 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-04-02   
443-945 7 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-03-16   
443-945 8 Elkton MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2013-12-01   
443-945 9 Elkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-02   
443-946 A Parkville MD BLTQMD01BMD  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-946 0 Parkville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2020-04-06   
443-946 1 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2020-02-12   
443-946 2 Parkville MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-946 3 Parkville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-946 4 Parkville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-946 5 Parkville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-946 6 Parkville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-11-13   
443-946 7 Parkville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-11-13   
443-946 8 Parkville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-946 9 Parkville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2017-10-27   
443-947 A Perryville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-947 0 Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-01-17   
443-947 1 Perryville MD   829J PAETEC ITEL, LLC 238      
443-947 2 Perryville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2019-03-08   
443-947 3 Perryville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-08-05   
443-947 4 Perryville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-08-05   
443-947 5 Perryville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-03-30   
443-947 6 Perryville MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2019-10-01   
443-947 7 Perryville MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-947 8 Perryville MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-947 9 Perryville MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-948 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-948 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-948 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-948 2 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
443-948 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-948 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-948 5 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-11-19   
443-948 6 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-12-07   
443-948 7 Baltimore MD   829J PAETEC ITEL, LLC 238   2014-03-10   
443-948 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2012-09-11   
443-948 9 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
443-949 A Annapolis MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-949 0 Annapolis MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-08-13   
443-949 1 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-11-26   

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Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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