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: 368

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-368 A Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-06-22   
475-368 0 Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-06-22   
475-368 1 Darien CT NRWLCT02Y0X  425J CSC WIRELESS, LLC 920   2024-07-25   
475-368 6 Darien CT   425J CSC WIRELESS, LLC 920   2025-05-02   
475-368 7 Darien CT   425J CSC WIRELESS, LLC 920   2025-04-14   
475-368 8 Darien CT NRWLCT02Y0X  425J CSC WIRELESS, LLC 920   2024-07-25   
475-368 9 Darien CT   425J CSC WIRELESS, LLC 920   2025-05-02   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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