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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-400 A Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-400 0 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-400 1 Washington Zone 2 MD WASHDC127MD  073H TELNYX LLC 236      
240-400 2 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-400 3 Washington Zone 2 MD SLSPMD913MD  939H COMMIO, LLC 236      
240-400 4 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-400 5 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-400 6 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-400 7 Washington Zone 2 MD BTVLMDCKCM5  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-400 8 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-400 9 Washington Zone 2 MD SLSPMD913MD  939H COMMIO, LLC 236      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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