KKSF (910 AM) is a radio station in San Francisco, Oakland, and San Jose, California. The station is owned by iHeartMedia, Inc..The 20,000 watt transmitter and twin towers are located on Point Isabel in Richmond, California, on San Francisco Bay. KDIA utilizes one of KKSF's two towers during the day. KKSF has studios in San Francisco's SoMa district.