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: 946

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-946 A Old Greenwich CT HRFRCT03XOX  965H FRACTEL, LLC 920      
475-946 0 Old Greenwich CT   624H ONVOY SPECTRUM, LLC 920   2021-03-12   
475-946 1 Old Greenwich CT   515J IP HORIZON LLC 920   2022-07-31   
475-946 2 Old Greenwich CT   639C ONVOY, LLC - CT 920   2022-09-17   
475-946 3 Old Greenwich CT   965H FRACTEL, LLC 920   2020-09-17   
475-946 4 Old Greenwich CT   639C ONVOY, LLC - CT 920   2020-11-22   
475-946 5 Old Greenwich CT   624H ONVOY SPECTRUM, LLC 920   2022-02-04   
475-946 6 Old Greenwich CT   639C ONVOY, LLC - CT 920   2020-11-22   
475-946 7 Old Greenwich CT   624H ONVOY SPECTRUM, LLC 920   2022-02-04   
475-946 8 Old Greenwich CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2022-09-15   

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

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