The station was assigned the call sign KCCA on May 31, 1991. On April 25, 2001, the station changed its call sign to KZNZ, on February 18, 2003, to KMXM, and on September 20, 2006, to KXFF.[3]
As of March 30, 2012, the station dropped its oldies format to become a simulcast of sister station KHKR, an ESPN Radio affiliate.[4]
Logo as 101.9 & 99.1 Dave FM
On January 1, 2017, KXFF changed their format from classic country to adult hits, branded as "101.9 & 99.1 Dave FM".[5] On December 5, 2022, it was announced that KXFF changed its format from adult hits to sports, branded as "Fox Sports Radio Utah".[6]
The call sign was changed to KDXU-FM on November 20, 2024;[7] the following month, the station began simulcasting the news/talk format of KDXU. Sports programming continues to be carried on KDXU-FM's HD Radio subchannels and on translator stations, with KDXU-FM HD2 and 97.7 K249EQ carrying the ESPN Radio programming formerly heard on KHKR (which concurrently shut down), and KDXU-FM HD3 and 101.9 K270BV continuing KXFF's previous Fox Sports Radio programming.[8]
