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: 327

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-327 A Milford CT HRFRCT03XSX  516J TON80 COMMUNICATIONS, LLC 920      
475-327 0 Milford CT   639C ONVOY, LLC - CT 920   2023-10-14   
475-327 1 Milford CT   639C ONVOY, LLC - CT 920   2023-10-14   
475-327 2 Milford CT   639C ONVOY, LLC - CT 920   2023-06-05   
475-327 3 Milford CT   639C ONVOY, LLC - CT 920   2023-07-14   
475-327 4 Milford CT   624H ONVOY SPECTRUM, LLC 920   2022-03-17   
475-327 5 Milford CT   624H ONVOY SPECTRUM, LLC 920   2022-03-17   
475-327 6 Milford CT   516J TON80 COMMUNICATIONS, LLC 920   2022-03-16   
475-327 7 Milford CT   318J COMCAST IP PHONE, LLC 920   2023-07-13   
475-327 8 Milford CT   639C ONVOY, LLC - CT 920   2023-07-14   
475-327 9 Milford CT   639C ONVOY, LLC - CT 920   2023-10-14   

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

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