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.

Chub Lake, ON

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
249-303 A SSMRON94EMD  160G COMWAVE NETWORKS INC. - ON 888 805108    
249-461 A SSMRON94FMD  464D FIBERNETICS CORPORATION 888 805108    
705-841 A TSLNON82RSA  8051 BELL ONTARIO 888 805108    

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.