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: 447

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-447 A Byram CT NYCMNY37TMD  624H ONVOY SPECTRUM, LLC 132      
475-447 0 Byram CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-01-07   
475-447 1 Byram CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-03-07   
475-447 2 Byram CT NYCMNY37TMD  624H ONVOY SPECTRUM, LLC 132   2022-02-05   
475-447 3 Byram CT NYCMNY37TMD  624H ONVOY SPECTRUM, LLC 132   2022-02-05   
475-447 4 Byram CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2021-06-03   
475-447 5 Byram CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2021-06-03   
475-447 7 Byram CT NYCMNY37TMD  624H ONVOY SPECTRUM, LLC 132   2021-05-21   
475-447 8 Byram CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2021-05-22   
475-447 9 Byram CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2021-05-22   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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