Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 933

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-933 A Cockeysville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-933 0 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-11-28   
443-933 1 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-07   
443-933 2 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-07   
443-933 3 Cockeysville MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-05   
443-933 4 Cockeysville MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2004-06-11   
443-933 5 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-10-07   
443-933 6 Cockeysville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
443-933 7 Cockeysville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
443-933 8 Cockeysville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-933 9 Cockeysville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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