| 1 | X7 | Zambia Skyways Ltd. | ICAO: ZAK, Callsign: Easair, Designator X7 recalled by IATA, ICAO designator changed from EAZ. Formerly Eastern Air Ltd. / IATA code changed from X7* | Z | AVCODES |
| 2 | X7 | Eastern Air Ltd. | ICAO: EAZ, Callsign: Easair, Named changed to Zambia Skyways | Z | AVCODES |
| 3 | X7 | Joint Stock Company Chitaavia | ICAO: CHF, Callsign: Chita, Designator X7 recalled by IATA | RUS | AVCODES |
| 4 | X7 | Zambia Skyways | ICAO: EAZ, Callsign: Easair, Formerly Eastern Air Ltd. / IATA code changed to X7 | Z | AVCODES |
| 5 | X7 | Zambia Skyways Ltd. | ICAO: EAZ, Callsign: Easair, Designator X7 reinstated by IATA, ICAO designator changed to ZAK. Formerly Eastern Air Ltd. / IATA code changed from X7* | Z | AVCODES |
| 6 | X7 | Air Service | Designator X7 reinstated by IATA | G | AVCODES |
| 7 | X7 | ACE Belgium Freighters S.A. | ICAO: FRH, Callsign: Ace Freight, IATA Prefix: 744, Name changed to Challenge Airlines (BE) S.A. | B | AVCODES |
| 8 | X7 | Challenge Airlines (BE) S.A. | ICAO: FRH, Callsign: Challenge, IATA Prefix: 744, ICAO Designator changed to CHG. Name changed from ACE Belgium Freighters S.A. | B | AVCODES |
| 9 | X7 | Challenge Airlines (BE) S.A. | ICAO: CHG, Callsign: Challenge, IATA Prefix: 744, ICAO Designator changed from FRH. Name changed from ACE Belgium Freighters S.A. | B | AVCODES |
