The 618th Air Operations Center (Tanker Airlift Control Center) is a United States Air Force unit assigned to Air Mobility Command's Eighteenth Air Force (18AF/AFTRANS). It is stationed at Scott Air Force Base, Illinois. The 618th AOC (TACC) is responsible for planning, scheduling, and tracking aircraft performing airlift, aerial refueling, and aeromedical evacuation operations around the world.