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
443-209 0 Havre de Grace MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-209 1 Havre de Grace MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-209 3 Havre de Grace MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-209 4 Havre de Grace MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-209 5 Havre de Grace MD   5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 238   2005-10-07   
443-209 7 Havre de Grace MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2009-03-02   
443-209 8 Havre de Grace MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-209 9 Havre de Grace MD   7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-210 A Salisbury MD SLBRMDSBRMD  6664 SPRINT SPECTRUM L.P. 242   2011-11-14   
443-210 0 Salisbury MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 242   2015-06-21   
443-210 1 Salisbury MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 242   2015-06-21   
443-210 2 Salisbury MD   318J COMCAST IP PHONE, LLC 242   2013-03-07   
443-210 3 Salisbury MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2011-11-18   
443-210 4 Salisbury MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2014-10-23   
443-210 5 Salisbury MD   5562 METRO PCS, INC. 242   2016-10-01   
443-210 6 Salisbury MD   5562 METRO PCS, INC. 242   2016-11-23   
443-210 7 Salisbury MD   6664 SPRINT SPECTRUM L.P. 242   2011-11-14   
443-210 8 Salisbury MD   6664 SPRINT SPECTRUM L.P. 242   2011-11-14   
443-210 9 Salisbury MD   6664 SPRINT SPECTRUM L.P. 242   2011-11-14   
443-212 A Sparks-Glencoe MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-212 1 Sparks-Glencoe MD   2589 US LEC OF MARYLAND, INC. 238   2003-03-29   
443-212 4 Sparks-Glencoe MD   4716 PAETEC COMMUNICATIONS, INC. - MD 238   2004-09-28   
443-212 5 Sparks-Glencoe MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2005-03-10   
443-212 6 Sparks-Glencoe MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238   2006-06-03   
443-212 7 Sparks-Glencoe MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2008-07-01   
443-212 8 Sparks-Glencoe MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-213 A Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
443-213 0 Pikesville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-09-07   
443-213 1 Pikesville MD   4773 XO MARYLAND, LLC 238   2006-09-11   
443-213 2 Pikesville MD   9212 VERIZON MARYLAND, INC. 238   2003-09-26   
443-213 3 Pikesville MD   9212 VERIZON MARYLAND, INC. 238   2003-09-26   
443-213 4 Pikesville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-22   
443-213 5 Pikesville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2014-07-13   
443-213 6 Pikesville MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2003-09-26   
443-213 7 Pikesville MD   2589 US LEC OF MARYLAND, INC. 238   2016-12-07   
443-213 8 Pikesville MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2011-06-28   
443-213 9 Pikesville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-22   
443-214 A Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-214 0 Annapolis MD   876D ONVOY, LLC - MD 238   2016-02-22   
443-214 1 Annapolis MD   082H LOCAL ACCESS LLC - MD 238   2013-09-06   
443-214 2 Annapolis MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-03-16   
443-214 3 Annapolis MD   876D ONVOY, LLC - MD 238   2013-08-10   
443-214 4 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-07-16   
443-214 5 Annapolis MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2013-09-30   
443-214 6 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-10-11   
443-214 7 Annapolis MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2011-12-17   
443-214 8 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-23   
443-214 9 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-23   
443-215 A Chestertown MD ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC. - MD 242      
443-216 A Dundalk MD HNVAMDBHRS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

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Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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