Local Calling Guide

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

NXX: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-657 A Randallstown MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-657 0 Randallstown MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2014-11-08   
443-657 1 Randallstown MD BLTMMDCHLMD  082H LOCAL ACCESS LLC - MD 238   2016-10-14   
443-657 2 Randallstown MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-657 3 Randallstown MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2014-11-08   
443-657 4 Randallstown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-657 5 Randallstown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-657 6 Randallstown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-657 7 Randallstown MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2015-11-14   
443-657 8 Randallstown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   
443-657 9 Randallstown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-23   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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