Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 450 [Rate centres in NPA 450] [Dial plan for NPA 450]

NXX: 353

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
450-353 A Howick QC CTGYPQ133MD  160G COMWAVE NETWORKS INC. - ON 888 805010    

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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