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: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-331 A Washington Zone 3 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-331 0 Washington Zone 3 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-331 1 Washington Zone 3 MD   145J TERRA NOVA TELECOM INC. 236   2021-07-14   
240-331 2 Washington Zone 3 MD WASHDC12MMD  516J TON80 COMMUNICATIONS, LLC 236   2021-10-28   
240-331 3 Washington Zone 3 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-04-15   
240-331 4 Washington Zone 3 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-01-15   
240-331 5 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-06-13   
240-331 6 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-06-13   
240-331 7 Washington Zone 3 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-08-26   
240-331 8 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-06-13   
240-331 9 Washington Zone 3 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-01-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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