Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 403 [Rate centres in NPA 403] [Dial plan for NPA 403]

NXX: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
403-856 A Drumheller AB DMHLAB020MD  497E SHAW TELECOM INC. - BC 888 808412    

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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