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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
443-408 8 Sparrows Point MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-02-13   
443-408 9 Sparrows Point MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-409 A Edgewood MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-409 0 Edgewood MD   829J PAETEC ITEL, LLC 238      
443-409 1 Edgewood MD   5562 METROPCS, INC. 238   2013-06-14   
443-409 2 Edgewood MD   5562 METROPCS, INC. 238   2013-06-14   
443-409 3 Edgewood MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-409 4 Edgewood MD   5562 METROPCS, INC. 238   2014-09-12   
443-409 5 Edgewood MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-07-04   
443-409 6 Edgewood MD   5562 METROPCS, INC. 238   2014-10-03   
443-409 7 Edgewood MD   5562 METROPCS, INC. 238   2014-11-05   
443-409 8 Edgewood MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-409 9 Edgewood MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-410 A Glen Burnie MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238      
443-410 0 Glen Burnie MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2014-05-25   
443-410 1 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-05-30   
443-410 2 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-05-30   
443-410 3 Glen Burnie MD   318J COMCAST IP PHONE, LLC 238   2014-03-22   
443-410 4 Glen Burnie MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-06-06   
443-410 5 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-410 6 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-410 7 Glen Burnie MD   508J CENTURYLINK COMMUNICATIONS, LLC 238   2013-09-30   
443-410 8 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-410 9 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-412 A Churchville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-412 0 Churchville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-412 1 Churchville MD   829J PAETEC ITEL, LLC 238   2004-01-10   
443-412 2 Churchville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2008-08-24   
443-412 3 Churchville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2008-09-02   
443-412 4 Churchville MD   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-412 5 Churchville MD   318J COMCAST IP PHONE, LLC 238   2013-10-14   
443-412 6 Churchville MD   321J HD CARRIER LLC 238   2016-05-14   
443-412 7 Churchville MD   508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-12   
443-412 8 Churchville MD   876D ONVOY, LLC - MD 238   2016-03-25   
443-412 9 Churchville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-413 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 0 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 1 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 2 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 3 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 4 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 5 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 6 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 7 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 8 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-413 9 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-414 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-414 0 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-414 1 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-414 2 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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