Local Calling Guide

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

NXX: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-284 A Bridgeport CT BRPTCT01ZMD  478J NUSO, LLC 920      
475-284 0 Bridgeport CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2020-11-21   
475-284 1 Bridgeport CT   478J NUSO, LLC 920   2020-11-20   
475-284 2 Bridgeport CT   639C ONVOY, LLC - CT 920   2021-02-18   
475-284 3 Bridgeport CT   639C ONVOY, LLC - CT 920   2021-02-18   
475-284 4 Bridgeport CT   639C ONVOY, LLC - CT 920   2021-01-01   
475-284 5 Bridgeport CT   639C ONVOY, LLC - CT 920   2021-01-01   
475-284 6 Bridgeport CT   624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-284 7 Bridgeport CT   639C ONVOY, LLC - CT 920   2021-02-18   
475-284 8 Bridgeport CT   639C ONVOY, LLC - CT 920   2021-02-18   
475-284 9 Bridgeport CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2020-11-27   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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