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: 766

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-766 A New Haven CT HRFRCT03XOX  965H FRACTEL, LLC 920      
475-766 0 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2020-11-30   
475-766 1 New Haven CT   639C ONVOY, LLC - CT 920   2021-07-03   
475-766 2 New Haven CT   639C ONVOY, LLC - CT 920   2021-07-03   
475-766 3 New Haven CT   965H FRACTEL, LLC 920   2020-09-17   
475-766 4 New Haven CT   639C ONVOY, LLC - CT 920   2021-07-03   
475-766 5 New Haven CT   639C ONVOY, LLC - CT 920   2021-07-03   
475-766 6 New Haven CT   965H FRACTEL, LLC 920   2020-09-17   
475-766 7 New Haven CT   639C ONVOY, LLC - CT 920   2021-01-01   
475-766 8 New Haven CT   639C ONVOY, LLC - CT 920   2021-01-01   
475-766 9 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2021-08-20   

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

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