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: 371

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-371 A Washington Zone 12 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-371 0 Washington Zone 12 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-371 1 Washington Zone 12 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-371 2 Washington Zone 12 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-01-15   
240-371 3 Washington Zone 12 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-01-15   
240-371 4 Washington Zone 12 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-16   
240-371 5 Washington Zone 12 MD BTVLMD127MD  5562 METROPCS, INC. 236   2022-11-14   
240-371 7 Washington Zone 12 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-09-22   
240-371 8 Washington Zone 12 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2022-09-22   
240-371 9 Washington Zone 12 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      

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

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