KYFI (630 AM) is a Christian radio station broadcasting from St. Louis, Missouri. KYFI is owned and operated by Bible Broadcasting Network, Inc.
From 1994 until September 20, 2013, the station was owned by Crawford Broadcasting and held the callsign KJSL. This frequency was formerly used by KXOK, the pioneer of the Top 40 radio format in the 1960s and 1970s. While KXOK had used a number of formats, it is best remembered as being a Top 40 music format during the 1960s and 1970s. In the mid-1960s, KXOK became the number one Top 40 radio station in the country, with legendary DJ Johnny Rabbitt leading the way as the station's top personality. The station was owned by Storz Communications, notably long after the death of Todd Storz, the father of the Top 40 radio format. KXOK was changed to KJSL in June 1994 under the new ownership of Crawford Broadcasting.