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: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-399 A Newport RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-399 0 Newport RI   7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130   2014-01-02   
401-399 3 Newport RI   977E ONVOY, LLC - RI 130   2020-05-24   
401-399 4 Newport RI   977E ONVOY, LLC - RI 130   2020-05-24   
401-399 6 Newport RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-399 7 Newport RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-399 8 Newport RI   977E ONVOY, LLC - RI 130   2021-03-02   
401-399 9 Newport RI   145J TERRA NOVA TELECOM INC. 130   2021-10-31   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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