Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 815

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-815 A Essex MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-815 0 Essex MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-815 1 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-815 2 Essex MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   
443-815 3 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2013-10-03   
443-815 4 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-11-01   
443-815 5 Essex MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-815 6 Essex MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-815 7 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-11-01   
443-815 8 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-815 9 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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