| 1 | ORX | Oryx Aviation | | ZA | AVCODES |
| 2 | ORX | Orbit Express Airlines Hava Yollair A.s. (Orex) | IATA: XW, Callsign: Orex, Ceased operations | TR | AVCODES |
| 3 | ORX | Orbit Express Airlines | | | ICAO1 |
| 4 | ORXE | ORSCHELN EXPRESS CORPORATION | | | SCAC3 |
| 5 | ORXE | ORSCHELN, GREG TRANSPORTATION CO | | | SCAC4 |
| 6 | ORXI | OMAHA REFRIGERATED EXPRESS INC | | | SCAC3 |
| 7 | ORXM | ORIX MARITIME CORPORATION | | | SCAC3 |
| 8 | ORXP | ORION EXPRESS LINE | | | SCAC3 |
| 9 | ORXQ | ORIENT EXPRESS FOOD SUPPLY CO | | | SCAC3 |
| 10 | ORXT | ORIENT EXPRESS TRANSPORT | | | SCAC4 |
| 11 | ORXX | NORDEN VIDEO INC | | | SCAC4 |
