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
443-705 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 1 Crisfield MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
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 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 236   2015-01-31   
443-707 6 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 7 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 8 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-08   
443-707 9 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 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 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      
443-709 A Arbutus MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-709 0 Arbutus MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2001-11-05   
443-709 1 Arbutus MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-01-08   
443-709 2 Arbutus MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2001-11-05   
443-709 3 Arbutus MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2001-11-05   
443-709 4 Arbutus MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2001-11-05   
443-709 5 Arbutus MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-11   
443-709 6 Arbutus MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-11   
443-709 7 Arbutus MD   5562 METRO PCS, INC. 238   2013-06-14   
443-709 8 Arbutus MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-09-08   
443-709 9 Arbutus MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238   2001-11-05   

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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