As of Winter 2020, CJAQ is the 8th-most-listened-to radio station in the Calgary market according to a PPM data report released by Numeris.

In 1950, it adopted the call letters that it would become most historically identified with by most Calgary radio listeners, CKXL (or simply "XL" for short).

On September 4, 1987, the station dropped Top 40 for adult contemporary as Kiss AM 1140 with the CISS call letters.

On August 1, 1991, the station flipped to classic rock as The Fox with the CFXX, and, later on, CFXL call letters.

[10][11][12] On April 1, 2003, at midnight, the station returned to its CKIS calls and flipped to its current format.