Local Calling Guide

Area code/prefix search

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NPA: 579 [Rate centres in NPA 579] [Dial plan for NPA 579]

NXX: 275

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
579-275 A Sainte-Thérèse QC STTRPQAI1MD  8304 ALLSTREAM INC. 888 805007    

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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