On August 1, 1964, KGON changed its call sign to KYMN and aired a top 40 format as "Kim Radio".
On September 18, 1967, KYMN changed its call sign to KYXI and aired a beautiful music format.
On August 18, 1989, KSGO changed its call sign to KFXX and switched to a rock format as "1520 The X".
On November 17, 2003, KKSN changed its call sign to KZNY, continuing with its "Sunny 1520" adult standards format.
On March 15, 2004, KZNY changed its call sign to KGDD and on April 13, 2004, switched to a regional Mexican format, branded as "La Gran D".