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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-548 A Washington Zone 14 MD WASHDCRKDS3  8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-548 0 Washington Zone 14 MD   8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-548 1 Washington Zone 14 MD   8992 ALLEGIANCE TELECOM, INC. - MD 236      
240-548 2 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-548 3 Washington Zone 14 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-14   
240-548 4 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-548 5 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-548 6 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   
240-548 7 Washington Zone 14 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
240-548 8 Washington Zone 14 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-04-30   
240-548 9 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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