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: 645

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-645 A Hope Valley RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-645 1 Hope Valley RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2024-07-08   
401-645 4 Hope Valley RI PRVDRIWAAMD  624H ONVOY SPECTRUM, LLC 130   2022-03-10   
401-645 5 Hope Valley RI PRVDRIWAAMD  624H ONVOY SPECTRUM, LLC 130   2022-03-10   
401-645 9 Hope Valley RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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