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: 363

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-363 A Washington Zone 11 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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