| 1 | 4A | Aero Transporte S.A. (ATSA) | ICAO: AMP, Callsign: Atsa, IATA Prefix: 212, | PE | AVCODES |
| 2 | 4A | F.S. Air Service, Inc. | ICAO: EYE, Callsign: Sockeye, | USA | AVCODES |
| 3 | 4A | Ararat Airlines | ICAO: ARK, Callsign: Ararat Avia, Designator 4A recalled by IATA | AM | AVCODES |
| 4 | 4A | Air Kiribati Limited | ICAO: AKL, Callsign: Air Kiribati, Founded on 01 April 1995. | KIR | AVCODES |
| 5 | 4A | R B Airline UK Ltd/Aviana Airways Ltd operating as Royal Bengal Airlines | ICAO: RRY, Callsign: Royal Bengal, Founded in 2006. Commenced commercial operations on 31 January 2008. | BD | AVCODES |
| 6 | 4A | Air Go Airlines S.A. | ICAO: AGS, Callsign: Airgo Cargo, IATA Prefix: 454, Commenced operations in September 2008. Ceased operations in October 2011. | GR | AVCODES |
| 7 | 4A | Aerodynamics, Inc. | ICAO: DYN, Callsign: Aerodynamics, Designator changed from 8N*. Name changed to Aerodynamics, Inc. d/b/a Great Lakes Jet Express. Name changed from Aero Dynamics, Inc. ICAO callsign from Aero Dynamic. IATA designator changed from Y7*. | USA | AVCODES |
