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: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-223 A Providence RI   829J PAETEC ITEL, LLC 130      

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

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