Local Calling Guide

Area code/prefix search

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

NXX: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
579-377 A Joliette QC JOLTPQ17IMD  464D FIBERNETICS CORPORATION 888 805015    

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

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