| 1 | FEN | Eurocopter UK Ltd. | Callsign: Fenestron, Name changed to Airbus Helicopters UK Ltd. | GB | AVCODES |
| 2 | FEN | Airbus Helicopters UK Ltd. | Callsign: Fenestron, Name changed from Eurocopter UK Ltd. | GB | AVCODES |
| 3 | FENC | FENCO CONTAINER CO | | | SCAC3 |
| 4 | FEND | FENDERSON | | | SCAC3 |
| 5 | FENE | FENELLI, NICHOLAS, RIGGING AND TRUC | | | SCAC3 |
| 6 | FENE | FENETRES FORM-TECH INC | | | SCAC4 |
| 7 | FENG | FENTON, GENE INC | | | SCAC3 |
| 8 | FENI | FISHER ENTERPRISES INC | | | SCAC4 |
| 9 | FENL | FLETES ENLACE | | | SCAC4 |
| 10 | FENN | FENNELL, NORMAN | | | SCAC4 |
| 11 | FENO | FENTON TRANSPORTATION SERVICE INC | | | SCAC3 |
| 12 | FENP | FERGUSON, R ENTERPRISES LTD | | | SCAC3 |
| 13 | FENQ | FOBROSE ENTERPRISE | | | SCAC4 |
| 14 | FENT | FENTON, M H | | | SCAC3 |
| 15 | FENT | FEDERAL ENTERPRISES LTD | | | SCAC4 |
| 16 | FENU | FENIX INVESTMENT SIA | | LV | BIC |
| 17 | FENU | FENIR ATIENGESELSCHAFT FURSTENTUM | | | SCAC3 |
| 18 | FENU | FENIR ATIENGESELSCHAFT FURSTENTUM | | | SCAC4 |
| 19 | FENV | FERENIKI NAVIGATION CORP | | | SCAC3 |
| 20 | FENV | Feniks V Sp. z o.o. | Real: Feniks V, City: Gliwice | PL | TRAFFIC |
| 21 | FENW | FRY, E & W EXPRESS INC | | | SCAC3 |
| 22 | FENY | FEENY, TOM BUILDERS INC | | | SCAC4 |
