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: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-309 A Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2021-11-12   
475-309 0 Ansonia-Derby CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2021-12-11   
475-309 1 Ansonia-Derby CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2021-12-11   
475-309 2 Ansonia-Derby CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2021-12-11   
475-309 3 Ansonia-Derby CT   639C ONVOY, LLC - CT 920   2021-11-13   
475-309 4 Ansonia-Derby CT   639C ONVOY, LLC - CT 920   2021-11-13   
475-309 5 Ansonia-Derby CT   639C ONVOY, LLC - CT 920   2021-11-13   
475-309 6 Ansonia-Derby CT   639C ONVOY, LLC - CT 920   2021-11-13   
475-309 7 Ansonia-Derby CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2021-11-12   
475-309 8 Ansonia-Derby CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2021-11-12   
475-309 9 Ansonia-Derby CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT DBA T-MOBILE USA 920   2021-11-12   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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