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: 998

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-998 A Fairfield CT   639C ONVOY, LLC - CT 920   2026-08-29   
475-998 0 Fairfield CT   639C ONVOY, LLC - CT 920   2026-08-29   
475-998 1 Fairfield CT   639C ONVOY, LLC - CT 920   2026-08-29   
475-998 2 Fairfield CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2026-08-31   
475-998 3 Fairfield CT   639C ONVOY, LLC - CT 920   2026-09-27   

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

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