Local Calling Guide

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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
443-886 A Cockeysville MD BLTMMDCHDS7  7421 AT&T LOCAL 238      
443-886 0 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-12-26   
443-886 1 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-12-26   
443-886 2 Cockeysville MD   7421 AT&T LOCAL 238      
443-886 3 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2013-02-11   
443-886 4 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-886 5 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-10-05   
443-886 6 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-07-21   
443-886 7 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-10-05   
443-886 8 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-09-18   
443-886 9 Cockeysville MD   7421 AT&T LOCAL 238      
443-887 A Catonsville MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 0 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 1 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 2 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 3 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 4 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 5 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 6 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 7 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 8 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-887 9 Catonsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2010-07-03   
443-888 A Princess Anne MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242   2011-03-05   
443-888 0 Princess Anne MD   876D ONVOY, LLC - MD 242   2017-04-14   
443-888 1 Princess Anne MD   073H TELNYX LLC 242   2017-09-13   
443-888 2 Princess Anne MD   876D ONVOY, LLC - MD 242   2019-03-10   
443-888 3 Princess Anne MD   876D ONVOY, LLC - MD 242   2019-03-10   
443-888 6 Princess Anne MD   318J COMCAST IP PHONE, LLC 242   2014-10-02   
443-888 7 Princess Anne MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2016-04-08   
443-888 8 Princess Anne MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242   2011-03-05   
443-888 9 Princess Anne MD   281E YMAX COMMUNICATIONS CORP. - MD 242   2011-04-07   
443-889 A Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 0 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 1 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 2 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 3 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 4 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 5 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 6 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 7 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-889 8 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2005-09-15   
443-889 9 Glen Burnie MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238      
443-890 A Baltimore MD CTVLMDBACM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-07   
443-890 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-07   
443-890 1 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-07   
443-890 2 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2011-10-10   
443-890 3 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 4 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 5 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   
443-890 6 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-10   

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Last updated: Sun, 31 May 2020 11:59:01 UTC

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