Local Calling Guide

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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-772 7 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-772 8 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-772 9 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-773 A Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 0 Cockeysville MD   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-773 1 Cockeysville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 2 Cockeysville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 3 Cockeysville MD   9212 VERIZON MARYLAND, INC. 238      
410-773 4 Cockeysville MD   9212 VERIZON MARYLAND, INC. 238      
410-773 5 Cockeysville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 6 Cockeysville MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 7 Cockeysville MD   9212 VERIZON MARYLAND, INC. 238      
410-773 8 Cockeysville MD   9212 VERIZON MARYLAND, INC. 238      
410-773 9 Cockeysville MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-05-08   
410-774 A Crofton MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-774 0 Crofton MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-25   
410-774 1 Crofton MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-25   
410-774 2 Crofton MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
410-774 3 Crofton MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   
410-774 4 Crofton MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2003-08-20   
410-774 5 Crofton MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-02-11   
410-774 6 Crofton MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-774 7 Crofton MD   9212 VERIZON MARYLAND, INC. 238   2005-10-15   
410-774 8 Crofton MD   2217 ATX TELECOMMUNICATIONS SERVICES, LTD-MD 238   2003-02-25   
410-774 9 Crofton MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-775 A Union Bridge MD UNBRMDUBRS0  9212 VERIZON MARYLAND, INC. 238      
410-775 0 Union Bridge MD   9212 VERIZON MARYLAND, INC. 238      
410-775 1 Union Bridge MD   9212 VERIZON MARYLAND, INC. 238      
410-775 2 Union Bridge MD   9212 VERIZON MARYLAND, INC. 238      
410-775 3 Union Bridge MD   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2006-05-05   
410-775 4 Union Bridge MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2013-02-02   
410-775 5 Union Bridge MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-05   
410-775 6 Union Bridge MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-775 7 Union Bridge MD   9212 VERIZON MARYLAND, INC. 238      
410-775 8 Union Bridge MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-775 9 Union Bridge MD   876D ONVOY, LLC - MD 238   2016-03-28   
410-776 A Bel Air MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 0 Bel Air MD   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-776 1 Bel Air MD   6664 SPRINT SPECTRUM L.P. 238   2011-08-26   
410-776 2 Bel Air MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 3 Bel Air MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2005-03-10   
410-776 4 Bel Air MD   6664 SPRINT SPECTRUM L.P. 238   2011-08-26   
410-776 5 Bel Air MD   6664 SPRINT SPECTRUM L.P. 238   2011-08-26   
410-776 6 Bel Air MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-776 7 Bel Air MD   2697 CTC COMMUNICATIONS CORP. - MD 238   2005-04-04   
410-776 8 Bel Air MD   6664 SPRINT SPECTRUM L.P. 238   2011-10-11   
410-776 9 Bel Air MD   6664 SPRINT SPECTRUM L.P. 238   2011-10-11   
410-777 A Severna Park MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      
410-777 0 Severna Park MD   6664 SPRINT SPECTRUM L.P. 238   2011-08-18   
410-777 1 Severna Park MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238      

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Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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