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: 492

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-492 A Washington Zone 5 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-492 0 Washington Zone 5 MD   829J PAETEC ITEL, LLC 236      
240-492 1 Washington Zone 5 MD   829J PAETEC ITEL, LLC 236      
240-492 2 Washington Zone 5 MD   829J PAETEC ITEL, LLC 236      
240-492 3 Washington Zone 5 MD   829J PAETEC ITEL, LLC 236      
240-492 4 Washington Zone 5 MD   829J PAETEC ITEL, LLC 236      
240-492 5 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-06-28   
240-492 6 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-04-29   
240-492 7 Washington Zone 5 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-08-28   
240-492 8 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-09-13   
240-492 9 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-07-22   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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