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: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-303 A Warren RI PRVDRIWAAMD  624H ONVOY SPECTRUM, LLC 130      
401-303 0 Warren RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2023-08-06   
401-303 1 Warren RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2023-09-22   
401-303 5 Warren RI PRVDRIWAAMD  624H ONVOY SPECTRUM, LLC 130   2021-12-09   
401-303 6 Warren RI PRVDRIWAAMD  624H ONVOY SPECTRUM, LLC 130   2021-12-09   
401-303 8 Warren RI EPRVRINB1MD  939H COMMIO, LLC 130   2023-11-04   
401-303 9 Warren RI EPRVRINB1MD  939H COMMIO, LLC 130   2023-11-04   

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

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