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
443-977 3 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2007-10-22   
443-977 4 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-12-08   
443-977 5 Baltimore MD   6664 SPRINT SPECTRUM L.P. 238   2007-10-22   
443-977 6 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-12-08   
443-977 7 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-01-02   
443-977 8 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-03-05   
443-977 9 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-03-05   
443-978 A Salisbury MD SLBRMDAZCM2  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-01-19   
443-978 0 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-01-19   
443-978 1 Salisbury MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 242   2016-07-14   
443-978 2 Salisbury MD   5562 METRO PCS, INC. 242   2018-10-14   
443-978 3 Salisbury MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2017-08-20   
443-978 4 Salisbury MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-23   
443-978 5 Salisbury MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-23   
443-978 6 Salisbury MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-10-23   
443-978 7 Salisbury MD   318J COMCAST IP PHONE, LLC 242   2016-03-08   
443-978 8 Salisbury MD   318J COMCAST IP PHONE, LLC 242   2016-01-18   
443-978 9 Salisbury MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 242   2016-07-14   
443-979 A Columbia MD BLTMMDCH05Z  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-979 0 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-979 1 Columbia MD   5562 METRO PCS, INC. 238   2013-07-25   
443-979 2 Columbia MD   5562 METRO PCS, INC. 238   2014-11-22   
443-979 3 Columbia MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-05-01   
443-979 4 Columbia MD   5562 METRO PCS, INC. 238   2014-12-29   
443-979 5 Columbia MD   5562 METRO PCS, INC. 238   2014-12-29   
443-979 6 Columbia MD   5562 METRO PCS, INC. 238   2015-03-06   
443-979 7 Columbia MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-11-20   
443-979 8 Columbia MD   876D ONVOY, LLC - MD 238   2014-10-20   
443-979 9 Columbia MD   876D ONVOY, LLC - MD 238   2014-10-20   
443-980 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 0 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 1 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 2 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 3 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 4 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 5 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 6 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-04-27   
443-980 7 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 8 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-980 9 Catonsville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-981 A Fallston MD WDLWMDEMCM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-981 0 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-981 1 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-01-17   
443-981 2 Fallston MD   876D ONVOY, LLC - MD 238   2012-10-07   
443-981 3 Fallston MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-08-16   
443-981 4 Fallston MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-981 5 Fallston MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-981 6 Fallston MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-981 7 Fallston MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   
443-981 8 Fallston MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   

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

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