KFZO (107.9 FM), is a Regional Mexican station serving the Dallas/Fort Worth metroplex in Texas. The station is licensed in Lewisville, Texas, and owned and operated by Univision Radio. The station's studios are located along the John W. Carpenter Freeway in the Stemmons Corridor of Northwest Dallas.The KESS call letters were first used in D/FW in the spring of 1976 when Marcos Rodriguez, Sr. father of Marcos A. Rodriguez gained control of a country station, KBUY-FM, on 93.9 FM.