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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
443-912 3 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-05   
443-912 4 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-05   
443-912 5 Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-07-29   
443-912 6 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-03-11   
443-912 7 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-07   
443-912 8 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-07   
443-912 9 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-07   
443-913 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-913 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-913 1 Baltimore MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2011-08-14   
443-913 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-913 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-913 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-913 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-913 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-913 7 Baltimore MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2011-08-14   
443-913 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-913 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-08-14   
443-914 A Worthington MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-914 0 Worthington MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2002-11-25   
443-914 1 Worthington MD   829J PAETEC ITEL, LLC 238   2004-01-10   
443-914 2 Worthington MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-07-07   
443-914 3 Worthington MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-07-06   
443-914 4 Worthington MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2017-06-05   
443-914 5 Worthington MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-20   
443-914 6 Worthington MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-914 7 Worthington MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-914 8 Worthington MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-914 9 Worthington MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-915 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-915 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-06   
443-915 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-06   
443-915 2 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-915 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-915 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-915 5 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-915 6 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-915 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-915 8 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-915 9 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-08   
443-916 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-916 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 6 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2024-10-23   
443-916 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-916 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-10-06   
443-917 A Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-917 0 Columbia MD   515J IP HORIZON LLC 238   2013-09-06   
443-917 1 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-917 2 Columbia MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-01-30   
443-917 3 Columbia MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-02-29   
443-917 4 Columbia MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2013-07-22   
443-917 5 Columbia MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-09-11   
443-917 6 Columbia MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-14   
443-917 7 Columbia MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2013-10-01   
443-917 8 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-917 9 Columbia MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-02-14   
443-918 A Taneytown MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-918 0 Taneytown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-04-02   
443-918 1 Taneytown MD   829J PAETEC ITEL, LLC 238   2007-04-24   
443-918 2 Taneytown MD   829J PAETEC ITEL, LLC 238   2004-02-05   
443-918 3 Taneytown MD   829J PAETEC ITEL, LLC 238   2005-10-07   
443-918 4 Taneytown MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2010-02-01   
443-918 5 Taneytown MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-05   
443-918 6 Taneytown MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2012-02-24   
443-918 7 Taneytown MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-918 8 Taneytown MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-01-19   
443-918 9 Taneytown MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-919 A Baltimore MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-920 A Sykesville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-920 0 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-07-28   
443-920 1 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-920 2 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-920 3 Sykesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2009-05-21   
443-920 4 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-06-07   
443-920 5 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-06-07   
443-920 6 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-920 7 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
443-920 8 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-25   
443-920 9 Sykesville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-921 A Towson MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-921 0 Towson MD   829J PAETEC ITEL, LLC 238      
443-921 1 Towson MD   829J PAETEC ITEL, LLC 238      
443-921 2 Towson MD   829J PAETEC ITEL, LLC 238      
443-921 3 Towson MD   829J PAETEC ITEL, LLC 238      
443-921 4 Towson MD   829J PAETEC ITEL, LLC 238      
443-921 5 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-07   
443-921 6 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-07   
443-921 7 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-07   
443-921 8 Towson MD   829J PAETEC ITEL, LLC 238      
443-921 9 Towson MD   829J PAETEC ITEL, LLC 238      
443-922 A Edgewood MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-922 0 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2019-01-05   
443-922 1 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-02-08   
443-922 2 Edgewood MD   829J PAETEC ITEL, LLC 238   2006-03-31   

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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