Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 343 [Rate centres in NPA 343] [Dial plan for NPA 343]

NXX: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
343-639 A Marmora ON BLVLON24BMD  464D FIBERNETICS CORPORATION 888 805126    

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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