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: 333

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-333 A Washington Zone 2 MD WASHDC12OMD  4820 CAVALIER EAST, LLC - MD 236      

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

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