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: 758

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-758 A Providence RI   883K AHOI LLC 130   2026-05-18   
401-758 6 Providence RI   883K AHOI LLC 130   2026-05-18   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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