There is constant chatter over commercial-airline radios. Tower gives the captain the go ahead, "American five eight seven heavy, wind three zero zero at niner, runway three one left, cleared for takeoff."
After takeoff, "American five eight seven heavy, New York departure. Radar contact. Climb maintain one three thousand."
If you’re a student pilot or air traffic control enthusiast, Live ATC (Live Air Traffic Control) might be of interest to you. You can listen to the dialogue between ground control and pilots in real-time. ATC covers major airports from all over the world. And if you’re interested, you can tune in to archived recordings of commercial-airline radio too. For the super-enthusiast, ATC is looking for help. If you are within 20 minutes of an airport and you have a police scanner, you can set up a base station of your own.