Local Calling Guide

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

NXX: 627

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-627 A Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-627 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-02-08   
443-627 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-02-08   
443-627 2 Baltimore MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238   2007-02-05   
443-627 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-02-08   
443-627 4 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-11-28   
443-627 5 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-11-28   
443-627 6 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-11-28   
443-627 7 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2007-02-07   
443-627 8 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-06-09   
443-627 9 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2010-10-20   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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