The United States has 22 Air Route Traffic Control Centers (ARTCC).^[1] They are operated by and are part of the Federal Aviation Administration of the U.S. Department of Transportation. An ARTCC controls aircraft flying in a specified region of airspace, known as a flight information region (FIR), typically during the en route portion of flight. The purpose of control is to promote the safe, orderly, and expeditious flow of air traffic^[2] and prevent collisions. In countries other than the U.S., such a facility is generally known as an area control center.

• Albuquerque Air Route Traffic Control Center

• Anchorage Air Route Traffic Control Center

• Atlanta Air Route Traffic Control Center

• Boston Air Route Traffic Control Center

• Chicago Air Route Traffic Control Center

• Cleveland Air Route Traffic Control Center

• Denver Air Route Traffic Control Center

• Fort Worth Air Route Traffic Control Center

• Honolulu Air Route Traffic Control Center

• Houston Air Route Traffic Control Center

• Indianapolis Air Route Traffic Control Center

• Jacksonville Air Route Traffic Control Center

• Kansas City Air Route Traffic Control Center

• Los Angeles Air Route Traffic Control Center

• Memphis Air Route Traffic Control Center

• Miami Air Route Traffic Control Center

• Minneapolis Air Route Traffic Control Center

• New York Air Route Traffic Control Center

• Oakland Air Route Traffic Control Center

• Salt Lake City Air Route Traffic Control Center

• Seattle Air Route Traffic Control Center

• Washington Air Route Traffic Control Center