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: 858

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-858 A Tiverton RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130      
401-858 0 Tiverton RI   977E ONVOY, LLC - RI 130   2024-07-08   
401-858 3 Tiverton RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-858 4 Tiverton RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-858 5 Tiverton RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-858 9 Tiverton RI   631G PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 130   2021-03-27   

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

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