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.

Yamaska, QC

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
450-362 A SFRLPQ010MD  843D 9164-3122 QUEBEC INC. - QC 888 805016    
450-483 A SORLPQ015MD  8306 VIDEOTRON LTD. 888 805016    
450-789 A YMSKPQ65RS1  8050 BELL QUEBEC 888 805016    
579-205 A YMSKPQ650MD  2243 TELUS COMMUNICATIONS (QUEBEC) INC. - QC 888 805016    
579-335 A SORLPQ630MD  818D COOPTEL 888 805016    
579-498 A SORLPQ63JMD  464D FIBERNETICS CORPORATION 888 805016    
579-891 A SORLPQ632MD  4727 ISP TELECOM, INC. 888 805016    

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.