What are the call letters of the sports radio station, also known as "The Fan" that broadcasts from the same building as sister station WNNX, a mainstream rock station?
WNNX: WNNX (100.5 FM, "Rock 100.5") is an Atlanta radio station airing a Mainstream Rock format. WNNX:  The station broadcasts from the same building as its other Cumulus Atlanta sister stations WWWQ ("Q100"), W255CJ 98.9 "99X", W250BC 97.9 "OG 97-9", WKHX 101.5 "Kicks 101-5", WYAY FM 106.7 "NewsRadio 106.7", and Dickey Broadcasting's WCNN "680 The Fan" and W229AG 93.7 in Sandy Springs near the Georgia Highway 400 and Interstate 285 interchange. WCNN: WCNN is an AM station broadcasting on a frequency of 680 kHz and serving the Atlanta-area radio market with a sports radio format.
WCNN