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: 485

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-485 A Westerly RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130      
401-485 0 Westerly RI   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2022-10-14   
401-485 1 Westerly RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130      
401-485 3 Westerly RI   624H ONVOY SPECTRUM, LLC 130   2021-12-09   
401-485 4 Westerly RI   624H ONVOY SPECTRUM, LLC 130   2021-12-09   
401-485 5 Westerly RI   624H ONVOY SPECTRUM, LLC 130   2021-04-16   
401-485 6 Westerly RI   977E ONVOY, LLC - RI 130   2022-09-29   
401-485 7 Westerly RI   977E ONVOY, LLC - RI 130   2022-09-29   
401-485 8 Westerly RI   490J DISH WIRELESS, LLC 130   2024-07-20   

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

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