Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

NXX: 264

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-264 A Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-264 0 Darien CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2020-04-10   
475-264 1 Darien CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2022-01-17   
475-264 2 Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-05-24   
475-264 3 Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-05-24   
475-264 4 Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-08-20   
475-264 6 Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-08-20   
475-264 7 Darien CT HRFRCT03XSX  516J TON80 COMMUNICATIONS, LLC 920   2021-06-06   
475-264 8 Darien CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2022-01-17   
475-264 9 Darien CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2024-04-05   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.