Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 843

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-843 A Washington Zone 13 (Baltimore LATA) MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
240-843 0 Washington Zone 13 (Baltimore LATA) MD   566J RADIANTIQ LLC 238   2021-05-07   
240-843 1 Washington Zone 13 (Baltimore LATA) MD   876D ONVOY, LLC - MD 238   2021-07-12   
240-843 2 Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
240-843 3 Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
240-843 4 Washington Zone 13 (Baltimore LATA) MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
240-843 5 Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
240-843 6 Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
240-843 7 Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
240-843 8 Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
240-843 9 Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   

Last updated: Fri, 23 Jul 2021 12:43:22 UTC

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