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: 476

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-476 A Centredale RI   977E ONVOY, LLC - RI 130   2025-03-02   
401-476 0 Centredale RI   977E ONVOY, LLC - RI 130   2025-03-02   
401-476 1 Centredale RI   977E ONVOY, LLC - RI 130   2025-05-02   
401-476 9 Centredale RI   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2025-09-29   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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