ENNA provides air navigation services (ATS, CNS, AIS) through one area control centre, five regional divisions and 33 airports including 11 international ones.
The Area Control Center is located at Algiers (Algiers ACC). The five regional divisions manage Algiers, Constantine, Hassi-messaoud, Oran and Annaba.
In 2017, the ATS units operated by ENNA controlled 260 711 en route flights. Peak day was recorded on May 1st 2017, when they handled 965 flights.
ENNA under the CAA supervision is part of ICAO EUR region.