| 1 | 5Z | Joint Stock Company Enkor | ICAO: ENK, Callsign: Enkor, IATA designator changed to GZ | RUS | AVCODES |
| 2 | 5Z | Airfreight Express Ltd. | ICAO: AFX, Ceased operations on 08 March 2002. | GB | AVCODES |
| 3 | 5Z | Bismillah Airlines Ltd. | ICAO: BML, Callsign: Bismillah, Designator 5Z recalled by IATA | BD | AVCODES |
| 4 | 5Z | Mokulele Flight Service | IATA dedsignator changed to MW | USA | AVCODES |
| 5 | 5Z | Cemair (Pty) Ltd. t/a Cemair | ICAO: KEM, Callsign: Cemair, AOC renewed on 17 October 2019. AOC suspended on 14 December 2018. | ZA | AVCODES |
