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: SORLPQ632MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
354-477 A Saint-Pie-de-Guire QC 4727 ISP TELECOM, INC. 888 805016    
354-878 A Saint-Zéphirin QC 4727 ISP TELECOM, INC. 888 805016    
450-249 A Sorel QC 4727 ISP TELECOM, INC. 888 805016    
579-391 A Pierreville QC 4727 ISP TELECOM, INC. 888 805016    
579-481 A Saint-Denis QC 4727 ISP TELECOM, INC. 888 805016    
579-891 A Yamaska QC 4727 ISP TELECOM, INC. 888 805016    

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

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