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
443-296 7 Waterloo MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2005-03-10   
443-296 8 Waterloo MD   4773 XO MARYLAND, LLC 238   2005-08-14   
443-296 9 Waterloo MD   4773 XO MARYLAND, LLC 238   2005-08-14   
443-297 A Arbutus MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-297 0 Arbutus MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2004-03-29   
443-297 1 Arbutus MD   2589 US LEC OF MARYLAND, INC. 238   2012-05-14   
443-297 2 Arbutus MD   5562 METRO PCS, INC. 238   2013-08-12   
443-297 3 Arbutus MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-297 4 Arbutus MD   5562 METRO PCS, INC. 238   2013-08-12   
443-297 5 Arbutus MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
443-297 6 Arbutus MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-25   
443-297 7 Arbutus MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-297 8 Arbutus MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2002-01-09   
443-297 9 Arbutus MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-298 A Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-298 0 Easton MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2003-01-06   
443-298 1 Easton MD   6664 SPRINT SPECTRUM L.P. 242   2004-12-27   
443-298 2 Easton MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-22   
443-298 3 Easton MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-22   
443-298 4 Easton MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-22   
443-298 5 Easton MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-22   
443-298 6 Easton MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-22   
443-298 7 Easton MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-22   
443-298 8 Easton MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-22   
443-298 9 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2016-08-06   
443-299 A Fallston MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-299 0 Fallston MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-299 1 Fallston MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-299 2 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-11-04   
443-299 4 Fallston MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 238      
443-299 5 Fallston MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-299 6 Fallston MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2005-03-10   
443-299 7 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-299 8 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-299 9 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-300 A Sykesville MD BLTMMDCHXZY  8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-300 0 Sykesville MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-300 2 Sykesville MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-300 3 Sykesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2008-10-01   
443-300 4 Sykesville MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-300 6 Sykesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-300 7 Sykesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-03   
443-300 8 Sykesville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-300 9 Sykesville MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-301 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 0 Baltimore MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2013-10-01   
443-301 1 Baltimore MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2013-10-01   
443-301 2 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 3 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 4 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   

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

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