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
443-233 4 Vienna MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2013-09-08   
443-233 5 Vienna MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-233 6 Vienna MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2012-05-26   
443-233 7 Vienna MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-233 8 Vienna MD   073H TELNYX LLC 242   2017-09-13   
443-233 9 Vienna MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-234 A Snow Hill MD SLBRMDSBDC0  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-234 0 Snow Hill MD   876D ONVOY, LLC - MD 242   2019-03-04   
443-234 1 Snow Hill MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-234 2 Snow Hill MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-234 3 Snow Hill MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2016-05-06   
443-234 4 Snow Hill MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-234 5 Snow Hill MD   318J COMCAST IP PHONE, LLC 242   2006-07-31   
443-234 6 Snow Hill MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-234 7 Snow Hill MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-234 8 Snow Hill MD   876D ONVOY, LLC - MD 242   2017-04-14   
443-234 9 Snow Hill MD   876D ONVOY, LLC - MD 242   2019-03-04   
443-235 A Salisbury MD SLBRMDAZCM2  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-236 A Cardiff MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238      
443-237 A North Beach MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238      
443-238 A Parkton MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-238 1 Parkton MD   876D ONVOY, LLC - MD 238   2016-03-21   
443-238 2 Parkton MD   2697 CTC COMMUNICATIONS CORP. - MD 238      
443-238 3 Parkton MD   876D ONVOY, LLC - MD 238   2016-03-21   
443-238 4 Parkton MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-238 5 Parkton MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2015-09-21   
443-238 6 Parkton MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-238 7 Parkton MD   7575 CENTURYLINK COMMUNICATIONS LLC 238   2014-06-12   
443-238 8 Parkton MD   073H TELNYX LLC 238   2017-04-26   
443-238 9 Parkton MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-239 A Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-03-12   
443-239 0 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-19   
443-239 1 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-19   
443-239 2 Easton MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-03-12   
443-239 3 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2011-02-03   
443-239 4 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-06-03   
443-239 5 Easton MD   6664 SPRINT SPECTRUM L.P. 242   2011-04-02   
443-239 6 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-06-03   
443-239 7 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2015-10-01   
443-239 8 Easton MD   073H TELNYX LLC 242   2017-09-13   
443-239 9 Easton MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-12-03   
443-240 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 0 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 1 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 2 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 3 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 4 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 5 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 6 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
443-240 7 Baltimore MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   

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Last updated: Wed, 01 Apr 2020 02:09:16 UTC

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