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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
443-245 2 Elkton MD   5562 METROPCS, INC. 238   2014-12-15   
443-245 3 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 4 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 5 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 6 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 7 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 8 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 9 Elkton MD   829J PAETEC ITEL, LLC 238      
443-246 A Elkton MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-247 A Union Bridge MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-247 0 Union Bridge MD   876D ONVOY, LLC - MD 238   2019-02-19   
443-247 1 Union Bridge MD   829J PAETEC ITEL, LLC 238      
443-247 2 Union Bridge MD   876D ONVOY, LLC - MD 238   2019-02-19   
443-247 3 Union Bridge MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-03   
443-247 4 Union Bridge MD   876D ONVOY, LLC - MD 238   2016-03-28   
443-247 5 Union Bridge MD   876D ONVOY, LLC - MD 238   2016-03-28   
443-247 6 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-247 7 Union Bridge MD   508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-247 8 Union Bridge MD   073H TELNYX LLC 238   2017-04-26   
443-247 9 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-248 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-248 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-03-09   
443-248 1 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-04-15   
443-248 2 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-04-15   
443-248 3 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-05-03   
443-248 4 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-05-03   
443-248 5 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-04   
443-248 6 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-04   
443-248 7 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-248 8 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-248 9 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-249 A Stevensville MD RMCKMDRRRS0  9212 VERIZON MARYLAND, INC. 242      
443-249 0 Stevensville MD   9212 VERIZON MARYLAND, INC. 242      
443-249 1 Stevensville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
443-249 2 Stevensville MD   876D ONVOY, LLC - MD 242   2017-04-14   
443-249 3 Stevensville MD   228C IDT AMERICA, CORP. - MD 242   2006-05-21   
443-249 4 Stevensville MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2011-01-03   
443-249 5 Stevensville MD   228C IDT AMERICA, CORP. - MD 242   2012-12-21   
443-249 6 Stevensville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-249 7 Stevensville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2004-06-12   
443-249 8 Stevensville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2006-08-28   
443-249 9 Stevensville MD   876D ONVOY, LLC - MD 242   2024-03-07   
443-250 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 0 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 1 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 2 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 3 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 4 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 5 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 6 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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