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: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-304 A Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-304 0 Huntington CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2022-05-21   
475-304 1 Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-09-11   
475-304 2 Huntington CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-12-07   
475-304 3 Huntington CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-12-07   
475-304 4 Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-12-06   
475-304 5 Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-12-06   
475-304 6 Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-12-06   
475-304 7 Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2021-12-06   
475-304 8 Huntington CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-01-15   
475-304 9 Huntington CT   515J IP HORIZON LLC 920   2022-07-22   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.