In 1928 it changed its call letters to KFOX,[2] intending to be acquired by 20th Century Fox. But the deal evaporated, and the partnership of Nichols and Warriner operated the station until the remaining partner, Hal Nichols, died in 1952.
As KFOX, it was one of the first stations in the Los Angeles area to broadcast a country music format, featuring Tennessee Ernie Ford and Cliffie Stone in its early days. Sonderling Broadcasting bought the station from the Nichols estate and adopted a full-time country format. The station moved from its long-time facilities at 220 East Anaheim to the International Tower.
The station, as KFOX, as well as staffers Hal McClain and Jonathan Fricke, were featured in the 1974 H. B. Halicki film Gone in 60 Seconds, both playing themselves.
In 1977 the station was sold to the non-profit Family Stations, Inc., and became KFRN.
