Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 579 [Rate centres in NPA 579] [Dial plan for NPA 579]

NXX: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
579-637 A Sainte-Thérèse QC STTRPQBW2MD  8306 VIDEOTRON LTD. 888 805007    

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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