The station signed on the air on August 31, 1991.[2] Its original city of license was Kearny and its call sign was KCDX.
In the early 1990s, KCDX was known as "X 105.3", and was an album rock station. Programming was delivered via satellite. In 1993, KCDX was sold to Entravision, with a change in the call letters to KZLZ. Entravision flipped the format to Spanish language Regional Mexican.
On September 5, 2006, Entravision sold KZLZ to Todd Robinson for $4,750,000. On December 1, 2006, the Federal Communications Commission approved the voluntary transfer of the license to KZLZ, LLC. Effective June 1, 2022, KZLZ, LLC sold the station to Bustos Media for $1.4 million.