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: 355

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-355 A Centredale RI EPRVRINBAMD  965H FRACTEL, LLC 130      
401-355 0 Centredale RI   939H COMMIO, LLC 130   2022-10-21   
401-355 1 Centredale RI   003F BANDWIDTH.COM CLEC, LLC - RI 130   2020-11-01   
401-355 2 Centredale RI   624H ONVOY SPECTRUM, LLC 130   2021-04-15   
401-355 3 Centredale RI   977E ONVOY, LLC - RI 130   2024-11-03   
401-355 4 Centredale RI   977E ONVOY, LLC - RI 130   2021-08-19   
401-355 5 Centredale RI   965H FRACTEL, LLC 130   2020-09-25   
401-355 6 Centredale RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-355 7 Centredale RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-355 8 Centredale RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-355 9 Centredale RI   631G PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 130   2021-01-11   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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