KYME signed on December 4, 1955 on 740

June 18, 1987   call letters were changed to KIZN

May 1, 1990 call letters were changed to KUCL

February 18, 1992  call letters were changed to KBSU 

July 18, 2011 call sign changed to KINF

October 1, 2013 Call sign changed to KNFL