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: 285

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-285 A Naugatuck CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
475-285 0 Naugatuck CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2020-09-13   
475-285 1 Naugatuck CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2020-09-13   
475-285 2 Naugatuck CT   639C ONVOY, LLC - CT 920   2021-03-04   
475-285 3 Naugatuck CT   639C ONVOY, LLC - CT 920   2021-03-04   
475-285 4 Naugatuck CT   639C ONVOY, LLC - CT 920   2021-08-01   
475-285 5 Naugatuck CT   639C ONVOY, LLC - CT 920   2021-08-01   
475-285 6 Naugatuck CT   639C ONVOY, LLC - CT 920   2021-08-01   
475-285 7 Naugatuck CT   639C ONVOY, LLC - CT 920   2021-08-01   
475-285 8 Naugatuck CT   624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-285 9 Naugatuck CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2021-10-28   

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

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