Local Calling Guide

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

NXX: 278

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-278 A Baltimore MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238      
443-278 0 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-01-06   
443-278 1 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-01-06   
443-278 2 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-01-06   
443-278 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-12-03   
443-278 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-13   
443-278 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-13   
443-278 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-05-13   
443-278 7 Baltimore MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238   2004-05-15   
443-278 8 Baltimore MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2005-08-05   
443-278 9 Baltimore MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2003-11-23   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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