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: 344

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-344 A Newport RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130      
401-344 0 Newport RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2021-10-08   
401-344 1 Newport RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130      
401-344 3 Newport RI   829J PAETEC ITEL, LLC 130   2015-07-16   
401-344 4 Newport RI   073H TELNYX LLC 130   2017-04-20   
401-344 5 Newport RI   624H ONVOY SPECTRUM, LLC 130   2021-12-09   
401-344 6 Newport RI   624H ONVOY SPECTRUM, LLC 130   2021-12-09   
401-344 7 Newport RI   508J CENTURYLINK COMMUNICATIONS, LLC 130   2015-12-12   
401-344 8 Newport RI   624H ONVOY SPECTRUM, LLC 130   2021-04-16   
401-344 9 Newport RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2021-10-08   

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

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