Local Calling Guide

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

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-303 A Aberdeen MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
443-303 0 Aberdeen MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
443-303 1 Aberdeen MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
443-303 2 Aberdeen MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-11-22   
443-303 3 Aberdeen MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236   2007-04-15   
443-303 4 Aberdeen MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
443-303 5 Aberdeen MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
443-303 6 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2011-10-06   
443-303 7 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2010-02-11   
443-303 8 Aberdeen MD   4773 XO MARYLAND, LLC 236   2007-02-19   
443-303 9 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2010-06-06   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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