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.

Switch: CHHMON17FMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
226-494 A Chatham ON 4727 ISP TELECOM, INC. 888 805101    
548-287 A Merlin ON 4727 ISP TELECOM, INC. 888 805101    
548-289 A Bothwell ON 4727 ISP TELECOM, INC. 888 805101    
548-314 A Ridgetown ON 4727 ISP TELECOM, INC. 888 805101    
548-326 A Dresden ON 4727 ISP TELECOM, INC. 888 805101    
548-462 A Thamesville ON 4727 ISP TELECOM, INC. 888 805101    
548-507 A Highgate ON 4727 ISP TELECOM, INC. 888 805101    
548-878 A Wallaceburg ON 4727 ISP TELECOM, INC. 888 805101    
548-892 A Blenheim ON 4727 ISP TELECOM, INC. 888 805101    
548-893 A Tilbury ON 4727 ISP TELECOM, INC. 888 805101    

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.