Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 606

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-606 A Ottawa IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358      

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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