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: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
534-321 A New Auburn WI EUCLWIAU3MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 352      
534-321 0 New Auburn WI   792K CHARTER IP ENABLED SERVICES, LLC 352   2020-05-04   
534-321 7 New Auburn WI   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 352   2015-08-17   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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