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: BRFLWIAC1MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
715-284 6 Black River Falls WI 6274 UNITED STATES CELLULAR - WI 352      
715-299 A Black River Falls WI 6274 UNITED STATES CELLULAR - WI 352      
715-538 3 Whitehall WI 6274 UNITED STATES CELLULAR - WI 352   2007-11-14   
715-538 5 Whitehall WI 6274 UNITED STATES CELLULAR - WI 352   2018-01-08   
715-980 A Whitehall WI 6274 UNITED STATES CELLULAR - WI 352   2021-11-08   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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