Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 548 [Rate centres in NPA 548] [Dial plan for NPA 548]

NXX: 572

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
548-572 A Hensall ON CLTNON055MD  464D FIBERNETICS CORPORATION 888 805127    

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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