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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Switch: RIO WIXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
920-992 A Rio WI 0931 CENTURYTEL SOUTHERN WISCONSIN LLC DBA CENTURYLINK 356      
920-992 3 Rio WI 0931 CENTURYTEL SOUTHERN WISCONSIN LLC DBA CENTURYLINK 356      
920-992 5 Rio WI 0931 CENTURYTEL SOUTHERN WISCONSIN LLC DBA CENTURYLINK 356      
920-992 6 Rio WI 0931 CENTURYTEL SOUTHERN WISCONSIN LLC DBA CENTURYLINK 356      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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