| 1 | EXK | Executive Air Charter | IATA: NA, IATA designator changed to OW | PRI | AVCODES |
| 2 | EXK | Executive Airlines, Inc. | IATA: OW, Designator OW reinstated by IATA | USA | AVCODES |
| 3 | EXK | Executive Airlines, Inc. | IATA: OW, | USA | AVCODES |
| 4 | EXK | Executive Airlines and Charter Services, Inc. | IATA: EX, Callsign: Executive Airlines, Name changed to Executive Air Charter, Inc. d/b/a American Eagle | USA | AVCODES |
| 5 | EXK | Executive Air Charter, Inc. d/b/a American Eagle | IATA: EX, Callsign: Executive Airlines, Name changed from Executive Airlines and Charter Services, Inc. | USA | AVCODES |
| 6 | EXK | Executive Airlines | IATA: OW | | ICAO1 |
| 7 | EXKC | EXCELLENT TRUCKING CO INC | | | SCAC3 |
| 8 | EXKD | EXPERIENCE TRUCKING LTD | | | SCAC4 |
| 9 | EXKG | EXPERT TRUCKING | | | SCAC4 |
| 10 | EXKI | EXTREME TRUCKING INC | | | SCAC4 |
| 11 | EXKM | EXCEL TRUCKING LIMITED | | | SCAC4 |
| 12 | EXKN | EXTRA MILE TRUCKING LLC | | | SCAC4 |
| 13 | EXKT | EXCEL TRANSPORTATION SERVICES INC | | | SCAC4 |
