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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-255 A Poolesville MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-255 0 Poolesville MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2022-06-14   
240-255 1 Poolesville MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-11-15   
240-255 2 Poolesville MD   624H ONVOY SPECTRUM, LLC 236   2022-03-12   
240-255 3 Poolesville MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-09-24   
240-255 4 Poolesville MD   624H ONVOY SPECTRUM, LLC 236   2022-03-12   
240-255 5 Poolesville MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 236   2021-01-23   
240-255 6 Poolesville MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2021-03-24   
240-255 7 Poolesville MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-11-15   
240-255 8 Poolesville MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-10-26   
240-255 9 Poolesville MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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