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
443-715 5 North East MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-715 6 North East MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-715 7 North East MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-05-16   
443-715 8 North East MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-715 9 North East MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-716 A Annapolis MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-716 0 Annapolis MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-716 1 Annapolis MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-716 2 Annapolis MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-716 3 Annapolis MD   4773 XO MARYLAND, LLC 238   2007-03-18   
443-716 4 Annapolis MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-716 5 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-05-12   
443-716 6 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-05-12   
443-716 7 Annapolis MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-716 8 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-07-23   
443-716 9 Annapolis MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-717 A Baltimore MD CTVLMDBACM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-11-05   
443-717 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-11-05   
443-717 1 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-11-05   
443-717 2 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-11-07   
443-717 3 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-11-07   
443-717 4 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-11-07   
443-717 5 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-12-22   
443-717 6 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-12-22   
443-717 7 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-12-22   
443-717 8 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-12-22   
443-717 9 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2005-12-22   
443-718 A Columbia MD CLMAMDJTDSA  2589 US LEC OF MARYLAND, INC. 238      
443-718 0 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-19   
443-718 1 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-07-12   
443-718 2 Columbia MD   2589 US LEC OF MARYLAND, INC. 238   2008-05-10   
443-718 3 Columbia MD   2589 US LEC OF MARYLAND, INC. 238   2008-05-10   
443-718 4 Columbia MD   2589 US LEC OF MARYLAND, INC. 238   2008-06-16   
443-718 5 Columbia MD   2589 US LEC OF MARYLAND, INC. 238   2008-06-16   
443-718 6 Columbia MD   9170 BROADVIEW NETWORKS, INC. - MD 238   2008-09-25   
443-718 7 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-07-12   
443-718 8 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-04-02   
443-718 9 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-719 A Jarrettsville MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-719 0 Jarrettsville MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-719 3 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-30   
443-719 4 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-07-30   
443-719 5 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-01   
443-719 6 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-01   
443-719 7 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-01   
443-719 8 Jarrettsville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-719 9 Jarrettsville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-720 A Aberdeen MD   4773 XO MARYLAND, LLC 236   2013-01-11   
443-720 0 Aberdeen MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-06-22   
443-720 1 Aberdeen MD   4773 XO MARYLAND, LLC 236   2013-01-11   

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

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