Air route traffic control center (ARTCC).

Air route traffic control center (ARTCC). Provides ATC service to aircraft operating on IFR flight plans within controlled airspace and principally during the en route phase of flight.

Related posts:

1. Air Route Surveillance Radar (ARSR).
2. En Route Flight Advisory Service (EFAS)
3. Tower En Route Control (TEC)
4. Jet route
5. Controlled airspace