Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 437 [Rate centres in NPA 437] [Dial plan for NPA 437]

NXX: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
437-452 A Toronto ON TOROON11ZMD  6574 BELL CELLULAR, INC. 888 805106 2024-02-02   

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

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