Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 401 [Rate centres in NPA 401] [Dial plan for NPA 401]

NXX: 323

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-323 A Providence RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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