| 1 | ORB | Orenburg Airlines Federal State Unitary Enterprise | {IATA: R2, Callsign: Orenburg, IATA Prefix: 291, Name changed to JSC "Orenburg Airlines". Name changed from State Unitary Avia Enterprise d/b/a Orenburg Airlines. Designator R2 reinstated by IATA};SRCKEY=AVCODES | RUS | |
| 2 | ORB | JSC "Orenburg Airlines" | {IATA: R2, Callsign: Orenburg, IATA Prefix: 291, Merged into Rossiya Airlines JSC (FV/SDM) w.e.f. 26 May 2016. Name changed to JSC "Orenburg Airlines". Name changed from State Unitary Avia Enterprise d/b/a Orenburg Airlines. Designator R2 reinstated by IATA};SRCKEY=AVCODES | RUS | |
| 3 | ORB | State Unitary Avia Enterprise d/b/a Orenburg Airlines | IATA: R2, Callsign: Orenburg, IATA Prefix: 291, Name changed to Orenburg Airlines Federal State Unitary Enterprise | RUS | AVCODES |
| 4 | ORB | Orenburg Airlines | IATA: R2 | | ICAO1 |
| 5 | ORB | ORANGE BELT STAGES | | | SCAC4 |
| 6 | ORBA | ORBITRANS AIR FREIGHT INC | | | SCAC3 |
| 7 | ORBC | ORBCO | | | SCAC3 |
| 8 | ORBI | ORBITAL TRANSPORT INC | | | SCAC3 |
| 9 | ORBIS | Orbis Interntional | Orbis International is an international non-profit non-governmental organization (NGO) dedicated to saving sight worldwide.[ | USA | TRAFFIC |
| 10 | ORBM | ORMSBY & BAUMEZ JR | | | SCAC3 |
| 11 | ORBN | ORBIT TRANSPORT & STORAGE INC | | | SCAC3 |
| 12 | ORBN | ORBIS EXPRESS INC | | | SCAC4 |
| 13 | ORBO | ORTON, BOB TRUCKING | | | SCAC4 |
| 14 | ORBQ | ORBIT MOVING & STORAGE INC | | | SCAC3 |
| 15 | ORBQ | ORBIT MOVING & STORAGE INC | | | SCAC4 |
| 16 | ORBU | ORBIT CHEMICAL INDUSTRIES LIMITED | | EAK | BIC |
| 17 | ORBU | ENTERPRISE CONTAINER LINES | | | SCAC3 |
| 18 | ORBU | ORBIT CHEMICAL INDUSTRIES LTD | | | SCAC4 |
| 19 | ORBY | ORMSBY TRUCKING INC | | | SCAC3 |
| 20 | ORBY | ORMSBY TRUCKING INC | | | SCAC4 |
