As of February 28, 2021, CIRK is the 6th-most-listened-to radio station in the Edmonton market according to a PPM data report released by Numeris.
[1] CIRK signed on the air on August 23, 1949 as CJCA-FM, originally located at 99.5 MHz as an FM simulcast of CJCA.
In the mid-1980s, CIRK was broadcast crystal clear throughout North America as a secondary audio frequency on channel 18 of Canadian satellite Anik D. For many years, mornings were hosted by Bruce Kenyon.
On February 10, 2009 the station announced that the morning team of Terry, Bill, and Steve would be returning after almost three years off the air.
Since 2022, the station has temporarily rebranded as "Konnor 97" (in honor of Connor McDavid) during the Stanley Cup playoffs if the Edmonton Oilers are playing.