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
443-834 9 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-08-01   
443-835 A Baltimore MD CTVLMDBACM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-02-08   
443-835 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-02-08   
443-835 1 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-09-10   
443-835 2 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-09-10   
443-835 3 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-09-10   
443-835 4 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-09-10   
443-835 5 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-19   
443-835 6 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-19   
443-835 7 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-19   
443-835 8 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-19   
443-835 9 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-07-16   
443-836 A Baltimore MD   4773 XO MARYLAND, LLC 238      
443-836 0 Baltimore MD   4773 XO MARYLAND, LLC 238      
443-836 1 Baltimore MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-19   
443-836 2 Baltimore MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-12   
443-836 3 Baltimore MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-12   
443-836 4 Baltimore MD   876D ONVOY, LLC - MD 238   2018-12-13   
443-836 6 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2017-12-05   
443-836 7 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2017-12-05   
443-836 8 Baltimore MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-19   
443-836 9 Baltimore MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-19   
443-837 A Annapolis MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-837 0 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 1 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 2 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 3 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-837 4 Annapolis MD   6664 SPRINT SPECTRUM L.P. 238   2006-04-13   
443-837 5 Annapolis MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-837 6 Annapolis MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2008-02-17   
443-837 7 Annapolis MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-26   
443-837 8 Annapolis MD   6664 SPRINT SPECTRUM L.P. 238   2007-12-20   
443-837 9 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-838 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-839 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-06-08   
443-839 0 Baltimore MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-27   
443-839 1 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2006-08-28   
443-839 2 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-07-09   
443-839 3 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-07-09   
443-839 4 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-06-08   
443-839 5 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-06-08   
443-839 6 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-06-08   
443-839 7 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-06-08   
443-839 8 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-08   
443-839 9 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-06-08   
443-840 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-18   
443-840 0 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-18   
443-840 1 Catonsville MD   9212 VERIZON MARYLAND, INC. 238   2008-07-10   
443-840 2 Catonsville MD   9212 VERIZON MARYLAND, INC. 238   2008-07-10   
443-840 3 Catonsville MD   9212 VERIZON MARYLAND, INC. 238   2008-07-10   

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

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