| 1 | 3U | Chanchangi Airlines Nigeria Limited | ICAO: NCH, Callsign: Chanchangi, Designator 3U* recalled by IATA | WAN | AVCODES |
| 2 | 3U | Air Cargo Carriers, Inc. | ICAO: SNC, Callsign: Night Cargo, Designator 3U* recalled by IATA | USA | AVCODES |
| 3 | 3U | Air Cargo Carriers, Inc. | ICAO: SNC, Callsign: Night Cargo, IATA designator changed to 2Q. Designator 3U* reinstated by IATA | USA | AVCODES |
| 4 | 3U | Sichuan Airlines Co. Ltd. | ICAO: CSC, Callsign: Sichuan, IATA designator changed from N8 | PRC | AVCODES |
