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: STJNPQ930MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
354-227 A Hemmingford QC 4727 ISP TELECOM, INC. 888 805011    
450-529 A Saint-Jean QC 4727 ISP TELECOM, INC. 888 805011    
450-554 A Farnham QC 4727 ISP TELECOM, INC. 888 805011    
450-570 A Napierville QC 4727 ISP TELECOM, INC. 888 805011    
450-590 A Bedford QC 4727 ISP TELECOM, INC. 888 805011    
450-604 A Lacolle QC 4727 ISP TELECOM, INC. 888 805011    
579-383 A Clarenceville QC 4727 ISP TELECOM, INC. 888 805011    
579-384 A Henryville QC 4727 ISP TELECOM, INC. 888 805011    
579-889 A Saint-Blaise QC 4727 ISP TELECOM, INC. 888 805011    

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

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