| R2 | ORB | 291 | Orenburg Airlines |
| R3 | RME | 956 | Armenian Airlines |
| R3 | SYL | Yakutia Airlines | |
| R7 | OCA | 717 | ASERCA Airlines |
| RA | RNA | 285 | Royal Nepal Airlines |
| RB | SYR | 070 | Syrian Arab Airlines |
| RC | FLI | 767 | Atlantic Airways |
| RD | NOV | Avianova | |
| RE | ACU | Aerocancun | |
| RE | REA | Aer Arann | |
| RF | FWL | 330 | Florida West International Airways |
| RG | VRG | 042 | VARIG Brazilian Airlines |
| RH | RPH | RPX Airlines | |
| RJ | RJA | 512 | Royal Jordanian |
| RK | RKA | 092 | Air Afrique |
| RK | RKH | Royal Khmer Airlines | |
| RL | AWD | Airworld Aviation | |
| RL | PPW | Royal Phnom Penh Airways | |
| RM | MLV | 283 | Air Moldova International |
| RN | EUL | 836 | Euralair International |
| RO | ROT | 281 | TAROM-Romanian Air Transport |
| RQ | RQX | 834 | Swisswings Airlines |
| RQ | KMR | Kam Air | |
| RR | RFR | Royal Air Force | |
| RS | ICT | Intercontinental de Aviacion | |
| RU | SKI | 025 | Skyking Airlines |
| RU | ABW | 580 | AirBridge Cargo |
| RV | RVV | 338 | Reeve Aleutian Airways |
| RV | CPN | 879 | Caspian Air Lines |
| RW | RLD | 586 | RAS Fluggesellschaft |
| RW | RPA | 052 | Republic Airlines |
| RX | AEH | AviaExpress Airlines | |
| RX | RWG | 594 | Redwing Airways |
| RZ | LRS | 503 | SANSA Servicios Aereos Nacionales |