"1st Area Control Centre, inside Mount Chortiatis, with Marconi S-743D 2nd Area Control Centre, inside Mount Parnitha, with Marconi S-743D 9th Control and Warning Station Squadron, on Mount Pelion, with Marconi S-743D 10th Control and Warning Station Squadron, on Mount Chortiatis, with Marconi S-743D
The Hellenic Air Force's Combined Air Operations Centre (CAOC 7) at Larissa Air Base was deactivated in 2013 and its responsibilities transferred to the CAOC Torrejón in Spain. The Hellenic Air Force fields two HR-3000, four AR-327 and six Marconi S-743D radar systems, however as of 2018 the air force is in the process of replacing some of its older systems with three RAT-31DL radars." [3]