CISN-FM (103.9 FM) is a radio station that broadcasts from Edmonton, Alberta, Canada. It is owned by Corus Entertainment, which also operates 630 CHED, Cool 880, and Joe FM. The station has a country format, playing both current hits and past favorites. CISN is one of the longest Edmonton broadcasting stations on FM. In 2008, CISN 103.9 was the second most listened to radio station in Edmonton but as of the Fall 2011 Ratings period, it had dropped to number 4.