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
443-827 6 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-03-04   
443-827 7 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-07-02   
443-827 8 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-07-02   
443-827 9 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-08-01   
443-828 A Ellicott City MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 0 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 1 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 2 Ellicott City MD   082H LOCAL ACCESS LLC - MD 238   2013-09-06   
443-828 3 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 4 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 5 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 6 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 7 Ellicott City MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-828 8 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-828 9 Ellicott City MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-829 A Baltimore MD   6664 SPRINT SPECTRUM L.P. 238      
443-830 A Catonsville MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-831 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-832 A Columbia MD BLTMMDSNRS0  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-832 0 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-832 1 Columbia MD   2589 US LEC OF MARYLAND, INC. 238   2009-10-26   
443-832 2 Columbia MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2009-11-13   
443-832 3 Columbia MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-08-15   
443-832 4 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-832 5 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-10-28   
443-832 6 Columbia MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2013-07-21   
443-832 7 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-11-01   
443-832 8 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-832 9 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-833 A Arbutus MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-833 0 Arbutus MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-04-19   
443-833 1 Arbutus MD   2589 US LEC OF MARYLAND, INC. 238   2002-11-19   
443-833 2 Arbutus MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2014-11-01   
443-833 3 Arbutus MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2008-10-01   
443-833 4 Arbutus MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-833 5 Arbutus MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-08-29   
443-833 6 Arbutus MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-06-04   
443-833 7 Arbutus MD   5562 METRO PCS, INC. 238   2013-06-14   
443-833 8 Arbutus MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-833 9 Arbutus MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-834 A Towson MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-834 0 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-05-16   
443-834 1 Towson MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-834 2 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-12-02   
443-834 3 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-05-02   
443-834 4 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-04-01   
443-834 5 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-09-20   
443-834 6 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-04-01   
443-834 7 Towson MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238   2005-10-14   
443-834 8 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-08-01   

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

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