Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 274 [Rate centres in NPA 274] [Dial plan for NPA 274]

NXX: 226

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
274-226 A Oakfield WI   6274 UNITED STATES CELLULAR - WI 356   2025-05-15   
274-226 6 Oakfield WI   145J TERRA NOVA TELECOM INC. 356   2025-08-21   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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