Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 534 [Rate centres in NPA 534] [Dial plan for NPA 534]

NXX: 212

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
534-212 A Eau Claire WI EUCLWIATOMD  321J HD CARRIER LLC 352      
534-212 8 Eau Claire WI EUCLWIATOMD  321J HD CARRIER LLC 352   2023-05-11   
534-212 9 Eau Claire WI EUCLWIATOMD  321J HD CARRIER LLC 352   2023-05-11   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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