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: 337

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-337 A Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-337 0 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-337 1 Washington Zone 5 MD WASHDC12KMD  145J TERRA NOVA TELECOM INC. 236   2023-08-06   
240-337 2 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2019-01-22   
240-337 3 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2019-10-28   
240-337 4 Washington Zone 5 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-07-01   
240-337 5 Washington Zone 5 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
240-337 6 Washington Zone 5 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
240-337 7 Washington Zone 5 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
240-337 8 Washington Zone 5 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
240-337 9 Washington Zone 5 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-07-01   

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

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