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.

Durham, ON

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
226-258 A OWSDON594MD  464D FIBERNETICS CORPORATION 888 805122    
226-432 A OWSDONCT0MD  4878 BRAGG COMMUNICATIONS INC. 888 805122    
226-702 A OWSDON593MD  154E IRISTEL INC. - ON 888 805122    
226-907 A OWSDON593MD  154E IRISTEL INC. - ON 888 805122    
226-953 A DRHMON480MD  2782 TELUS INTEGRATED COMMUNICATIONS 888 805122    
519-369 A DRHMON48RSA  8051 BELL ONTARIO 888 805122    
519-493 A DRHMONAD0MD  6574 BELL CELLULAR, INC. 888 805122    
519-921 A DRHMON48RSA  8051 BELL ONTARIO 888 805122    
548-254 A OWSDONAN0MD  138D WIGHTMAN COMMUNICATIONS LTD. - ON 888 805122    
548-290 A OWSDON593MD  154E IRISTEL INC. - ON 888 805122    

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.