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
443-704 A Odenton MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-704 0 Odenton MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-704 1 Odenton MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-704 2 Odenton MD   5562 METRO PCS, INC. 238   2014-12-26   
443-704 3 Odenton MD   876D ONVOY, LLC - MD 238   2020-06-04   
443-704 4 Odenton MD   5562 METRO PCS, INC. 238   2014-12-22   
443-704 6 Odenton MD   5562 METRO PCS, INC. 238   2015-09-20   
443-704 7 Odenton MD   5562 METRO PCS, INC. 238   2019-10-13   
443-704 8 Odenton MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-705 A Cockeysville MD   4773 XO MARYLAND, LLC 238      
443-705 0 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-09-16   
443-705 1 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-09-16   
443-705 2 Cockeysville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-06-26   
443-705 3 Cockeysville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-15   
443-705 4 Cockeysville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-15   
443-705 5 Cockeysville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2019-08-22   
443-705 6 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-10-18   
443-705 7 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-10-18   
443-705 8 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-07-19   
443-705 9 Cockeysville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-07-19   
443-706 A Crisfield MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-706 0 Crisfield MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-706 2 Crisfield MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-706 3 Crisfield MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2009-03-02   
443-706 4 Crisfield MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-706 5 Crisfield MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-706 7 Crisfield MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2016-10-10   
443-706 8 Crisfield MD   876D ONVOY, LLC - MD 242   2017-04-13   
443-707 A Aberdeen MD   082H LOCAL ACCESS LLC - MD 236      
443-707 0 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2014-11-08   
443-707 1 Aberdeen MD   082H LOCAL ACCESS LLC - MD 236   2014-08-08   
443-707 2 Aberdeen MD   876D ONVOY, LLC - MD 236   2015-07-29   
443-707 3 Aberdeen MD   876D ONVOY, LLC - MD 236   2015-07-29   
443-707 4 Aberdeen MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236   2014-11-17   
443-707 5 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2015-01-31   
443-707 6 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2015-01-31   
443-707 7 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2015-01-31   
443-707 8 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2014-11-08   
443-707 9 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2014-11-08   
443-708 A Baltimore MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-708 0 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-12-14   
443-708 1 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-12-14   
443-708 2 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-12-14   
443-708 3 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-12-14   
443-708 4 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-12-14   
443-708 5 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2006-12-14   
443-708 6 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2008-04-08   
443-708 7 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2007-09-20   
443-708 8 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2007-09-20   
443-708 9 Baltimore MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      

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

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