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: 378

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
403-378 A Duchess AB DCHSAB01RS1  8084 TELUS COMMUNICATIONS, INC. 888 808409    

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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