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: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-407 A Washington Zone 16 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-407 0 Washington Zone 16 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-407 1 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-04-28   
240-407 2 Washington Zone 16 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-407 3 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-04-02   
240-407 4 Washington Zone 16 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-407 5 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
240-407 6 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
240-407 7 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2011-04-23   
240-407 8 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-04-02   
240-407 9 Washington Zone 16 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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