The station was assigned the KHRN call letters by the Federal Communications Commission on June 15, 2000.[1] On September 5, 2006, the station changed its call sign to the current KZLA.
The KZLA call sign had previously belonged to Emmis Communications for a country music station in Los Angeles; on August 17, 2006, the country format was replaced and in September the call sign was changed. More details of that station's history are at KLLI (FM) "Cali 93.9".