The station was assigned the calls KADQ-FM on 1980-07-31. The station changed calls again on 2006-04-06 to the current KSNA. The radio station recently flipped to a CHR format to compete with rival KFTZ Z103. However it still kept the Sunny moniker but changed the slogan to "todays hottest music."
On March 21, 2011 KSNA moved to 100.7 FM and changed their format to Adult CHR, branded as "100.7 My FM".