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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-255 A Meriden CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
475-255 0 Meriden CT   639C ONVOY, LLC - CT 920   2019-03-30   
475-255 1 Meriden CT   639C ONVOY, LLC - CT 920   2019-03-30   
475-255 2 Meriden CT   639C ONVOY, LLC - CT 920   2020-08-20   
475-255 3 Meriden CT   639C ONVOY, LLC - CT 920   2020-08-20   
475-255 4 Meriden CT   5562 METROPCS, INC. 920   2019-07-22   
475-255 5 Meriden CT   5562 METROPCS, INC. 920   2019-07-04   
475-255 6 Meriden CT   639C ONVOY, LLC - CT 920   2020-07-05   
475-255 7 Meriden CT   639C ONVOY, LLC - CT 920   2020-07-05   
475-255 8 Meriden CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2018-11-19   
475-255 9 Meriden CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2018-11-19   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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