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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: UNECWIAC2MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
715-978 0 Cadott WI 792K CHARTER IP ENABLED SERVICES, LLC 352   2007-03-06   
715-979 7 Ashland WI 792K CHARTER IP ENABLED SERVICES, LLC 352   2017-07-23   
715-989 A Wheeler WI 792K CHARTER IP ENABLED SERVICES, LLC 352      
715-989 1 Wheeler WI 792K CHARTER IP ENABLED SERVICES, LLC 352   2008-04-27   
715-995 1 Augusta WI 792K CHARTER IP ENABLED SERVICES, LLC 352   2022-04-03   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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