| 1 | 4L | Air Astana | ICAO: AST, Callsign: Astanaline, ICAO designator changed to KZR. IATA Designator changed from LQ* | KZ | AVCODES |
| 2 | 4L | Deltacraft Oy | ICAO: DEC, Callsign: Deltacraft, Designator 4L* recalled by IATA | FIN | AVCODES |
| 3 | 4L | Lineas Aereas Suramericanas SA t/a LAS, S.A. | ICAO: LAU, Callsign: Suramericano, IATA Prefix: 174, | CO | AVCODES |
| 4 | 4L | Air Alma, Inc. | ICAO: AAJ, Callsign: Air Alma, Designator 4L recalled by IATA | CDN | AVCODES |
| 5 | 4L | Air Astana | ICAO: KZR, Callsign: Astanaline, IATA designator changed to KC w.e.f 29 October 2006. ICAO designator changed from AST. IATA Designator changed from LQ* | KZ | AVCODES |
| 6 | 4L | Euroline | ICAO: MJX, Name changed to Georgian International Airlines Ltd. | GE | AVCODES |
| 7 | 4L | Georgian International Airlines Ltd. | ICAO: GIL, Name changed from Euroline | GE | AVCODES |
| 8 | 4L | Palau National Airlines | ICAO: PNA, Callsign: Tropic Bird, IATA designator changed from 9P. ICAO Callsign changed from Sebus. | PAL | AVCODES |
