WCNN is an AM station broadcasting on a frequency of 680 kHz and serving the Atlanta-area radio market with a sports radio format. The station is commonly known by the on-air branding as "680 the Fan". The station formerly broadcast the audio portion of the CNN Headline News channel (hence its current callsign) along with some local news and commercials, a news radio format that the station pioneered in the 1980s and re-appeared on the station later in the station's history.