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: 244

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-244 A Cheshire CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-244 0 Cheshire CT   073H TELNYX LLC 920   2018-05-02   
475-244 1 Cheshire CT   639C ONVOY, LLC - CT 920   2018-04-23   
475-244 2 Cheshire CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2019-04-05   
475-244 3 Cheshire CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2019-04-05   
475-244 4 Cheshire CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2019-04-05   
475-244 5 Cheshire CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2019-04-05   
475-244 6 Cheshire CT   639C ONVOY, LLC - CT 920   2019-03-29   
475-244 7 Cheshire CT   639C ONVOY, LLC - CT 920   2018-10-31   
475-244 8 Cheshire CT   639C ONVOY, LLC - CT 920   2018-10-31   
475-244 9 Cheshire CT   639C ONVOY, LLC - CT 920   2019-03-29   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.