Once the aircraft leaves the airspace of the airport, the pilot will be handed off to a controller at a TRACON (Terminal Radar Approach Control) or an ARTCC Center (Air Route Traffic Control Centers), commonly called Air Traffic Control). Tower - The Tower Controller is responsible for the aircraft in the immediate area around the airport (Up to 3000 feet and 5 miles from the airport).Ground Control - The ground controller tells the pilot which taxiways to use to arrive at the correct runway.Clearance Delivery - The pilot uses this frequency to notify a controller of his flight intentions and to receive flight instructions and clearance for take-off.