Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

NXX: 315

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-315 A Cheshire CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
475-315 0 Cheshire CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2021-12-02   
475-315 1 Cheshire CT   490J DISH WIRELESS, LLC 920   2022-07-31   
475-315 2 Cheshire CT   639C ONVOY, LLC - CT 920   2022-02-05   
475-315 3 Cheshire CT   639C ONVOY, LLC - CT 920   2022-02-05   
475-315 4 Cheshire CT   624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-315 5 Cheshire CT   624H ONVOY SPECTRUM, LLC 920   2022-01-28   
475-315 6 Cheshire CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2023-07-14   
475-315 7 Cheshire CT   515J IP HORIZON LLC 920   2022-07-23   
475-315 8 Cheshire CT   939H COMMIO, LLC 920   2022-12-17   
475-315 9 Cheshire CT   639C ONVOY, LLC - CT 920   2023-06-26   

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

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