Definition
Air Route Traffic Control Centers are FAA facilities that provide air traffic control services to aircraft operating on IFR flight plans within controlled airspace, primarily during the en route phase of flight. Each ARTCC is responsible for a large geographic area of airspace, divided into sectors managed by individual controllers. There are 22 ARTCCs covering the continental United States, Alaska, Hawaii, Puerto Rico, and Guam.
Plain English
ARTCCs, often just called Centers, are the air traffic control facilities that handle airplanes flying high and far between airports. Once you climb away from your departure airport's local controllers, a Center takes over and stays with you until you start descending toward your destination.
Context Anchor
Seen in instrument flying, route planning, radio communications, and NextGen discussions about how aircraft are managed across the national airspace system.
Derivation
The name describes the function plainly: 'Air Route' refers to the airways and routes aircraft follow between airports; 'Traffic Control Center' is the facility that manages that traffic. Knowing this helps the term feel less abstract — it's literally the center that controls traffic on the air routes between airports.
Why Pilots Care
They provide the controllers who issue route clearances and traffic advisories during the cruise portion of an IFR flight.
Intuition Check
ARTCCs are not control towers at individual airports. They are regional centers that manage aircraft across broad areas between airport areas.
Example Sentence 1
After departure, the tower handed us off to approach control, who then handed us off to Denver Center for the en route portion of our flight.
Example Sentence 2
ARTCCs coordinate handoffs with approach control as aircraft near their destination airports.