Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 534 [Rate centres in NPA 534] [Dial plan for NPA 534]

NXX: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
534-331 A Iron River WI EUCLWIAU3MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 352      
534-331 1 Iron River WI   145J TERRA NOVA TELECOM INC. 352   2025-08-02   
534-331 7 Iron River WI EUCLWIAU3MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 352   2017-12-14   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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