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: 396

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-396 A Bridgeport CT HRFRCTBCBMD  612K CSC VOICE, LLC 920   2025-10-02   
475-396 0 Bridgeport CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2026-05-02   
475-396 1 Bridgeport CT   639C ONVOY, LLC - CT 920   2026-07-24   
475-396 2 Bridgeport CT   639C ONVOY, LLC - CT 920   2026-07-24   
475-396 3 Bridgeport CT   639C ONVOY, LLC - CT 920   2026-07-24   
475-396 4 Bridgeport CT HRFRCTBCBMD  612K CSC VOICE, LLC 920   2025-10-02   
475-396 8 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2026-02-19   
475-396 9 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2026-02-19   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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