Local Calling Guide

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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-788 A Washington Zone 5 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-788 0 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-06-23   
240-788 1 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-08-12   
240-788 2 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
240-788 3 Washington Zone 5 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-788 4 Washington Zone 5 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-05-12   
240-788 5 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-08-12   
240-788 6 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2008-02-17   
240-788 7 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2008-02-17   
240-788 8 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2023-09-07   
240-788 9 Washington Zone 5 MD SLSPMD913MD  939H COMMIO, LLC 236   2021-09-04   

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

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