Local Calling Guide

Area code/prefix search

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Naugatuck, CT

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
475-763 8 HRFRCT03XSX  516J TON80 COMMUNICATIONS, LLC 920   2022-03-19   
475-763 9 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-18   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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