Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 304 [Rate centres in NPA 304] [Dial plan for NPA 304]

NXX: 447

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-447 A New Martinsville WV NWMRWVWZHPA  4095 FIBERNET, LLC - WV 256      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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