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
443-478 8 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2009-09-24   
443-478 9 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2009-09-24   
443-479 A Waterloo (Washington DC LATA) MD LARLMDDYDS0  9212 VERIZON MARYLAND, INC. 236      
443-480 A Chestertown MD SLBRMDAZCM2  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-480 0 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-480 1 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-480 2 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-480 3 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-480 4 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-480 5 Chestertown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-01-18   
443-480 6 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-480 7 Chestertown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2007-08-07   
443-480 8 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-03-05   
443-480 9 Chestertown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-481 A Annapolis MD CLMAMDJTDS0  2589 US LEC OF MARYLAND, INC. 238      
443-481 0 Annapolis MD   6664 SPRINT SPECTRUM L.P. 238   2005-09-08   
443-481 1 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-481 2 Annapolis MD   6664 SPRINT SPECTRUM L.P. 238   2006-06-02   
443-481 3 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-481 4 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-481 5 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-481 6 Annapolis MD   2589 US LEC OF MARYLAND, INC. 238      
443-481 7 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-12   
443-481 8 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-12   
443-481 9 Annapolis MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-06   
443-482 A Annapolis MD ANNPMDANDS0  9212 VERIZON MARYLAND, INC. 238      
443-482 0 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-482 1 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-482 2 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-482 3 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-482 4 Annapolis MD   6664 SPRINT SPECTRUM L.P. 238   2011-08-19   
443-482 5 Annapolis MD   4773 XO MARYLAND, LLC 238   2006-11-03   
443-482 6 Annapolis MD   4773 XO MARYLAND, LLC 238   2006-11-03   
443-482 7 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-482 8 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-482 9 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-483 A Cardiff MD BLTMMDCHXZY  8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-483 0 Cardiff MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-483 1 Cardiff MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-483 2 Cardiff MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-483 3 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   
443-483 4 Cardiff MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-02-07   
443-483 5 Cardiff MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-483 6 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   
443-483 7 Cardiff MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-03-07   
443-483 8 Cardiff MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-26   
443-483 9 Cardiff MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-484 A Edgewood MD BLTMMDCHXZY  8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-484 0 Edgewood MD   8864 BROADWING COMMUNICATIONS. LLC - MD 238      
443-484 1 Edgewood MD   073H TELNYX LLC 238   2017-03-14   

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

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