| 5401 | FPSU | FIELD PIPE SYSTEMS S R L | | | SCAC4 |
| 5402 | FPSV | FANNON PETROLEUM SERVICE INC | | | SCAC4 |
| 5403 | FPSX | Feed Products South, Inc. | added 7/2009 | | NAKINA |
| 5404 | FPSX | F.M. Priest & Sons (North Western Refrigerator Line Co.) | 7/1935 | | NAKINA |
| 5405 | FPSX | FEED PRODUCTS SOUTH INC | | | SCAC4 |
| 5406 | FPTA | FOUR POINTS TRANSPORT INC | | | SCAC4 |
| 5407 | FPTC | FORT PITT CONSOLIDATORS INC | | | SCAC3 |
| 5408 | FPTC | FORT PITT CONSOLIDATORS INC | | | SCAC4 |
| 5409 | FPTD | FREEDLAND, PAUL TRUCKING | | | SCAC4 |
| 5410 | FPTG | FREEPORT TRUCKING INC | | | SCAC3 |
| 5411 | FPTG | FPT TRUCKING | | | SCAC4 |
| 5412 | FPTI | F P T INC | | | SCAC3 |
| 5413 | FPTK | FOREST PRODUCTS TRUCKING INC | | | SCAC3 |
| 5414 | FPTK | FRANCIS, PAT TRUCKING INC | | | SCAC4 |
| 5415 | FPTL | FIRST (1ST) PRIORITY TRANSPORT LTD | | | SCAC3 |
| 5416 | FPTN | FRAMPTON, HARVEY INC | | | SCAC3 |
| 5417 | FPTO | FOUR (4) POINT TRUCKING | | | SCAC4 |
| 5418 | FPTP | FORMOSA PLASTICS TRANSPORT CORPORAT | | | SCAC3 |
| 5419 | FPTQ | FARMERS PRIDE TRANSPORTATION LLC | | | SCAC4 |
| 5420 | FPTR | FOREST PRODUCTS TRANSPORTATION & RE | | | SCAC3 |
| 5421 | FPTR | FIRST PRIORITY TOURS INC | | | SCAC4 |
| 5422 | FPTS | FOUR POINTS TRANSPORTATION LLC | | | SCAC4 |
| 5423 | FPTT | FLYNN, PAT T TRUCKIBG | | | SCAC3 |
| 5424 | FPTU | RAFFLES LEASE PTE LTD | | SGP | BIC |
| 5425 | FPTW | FIRST PRODUCTS TANKERS, INC | | | SCAC3 |
| 5426 | FPTX | Ferrous Processing and Trading Co. | added 1/2005; 7/2005 | | NAKINA |
| 5427 | FPTX | Fidelity Products Co. | 8/1920-7/1923 | | NAKINA |
| 5428 | FPTX | *FIDELITY PRODUCTS CO | | | PWRC |
| 5429 | FPTX | +FERROUS PROCESSING & TRADING CO. | | | PWRC |
| 5430 | FPTX | FERROUS PROCESSING AND TRADING COMP | | | SCAC4 |
| 5431 | FPTY | FORTY POINT TRANSPORTATION | | | SCAC4 |
| 5432 | FPUA | FIBRA PURHEPECHA | | | SCAC4 |
| 5433 | FPVX | Farmers Produce Company of Vinita (Merchants Despatch, Inc.) | 7/1935 | | NAKINA |
| 5434 | FPWC | FIRST (1ST) PROPANE OF | | | SCAC4 |
| 5435 | FPWK | FERRY PASS WRECKER SERVICE | | | SCAC3 |
| 5436 | FPWQ | FAYETTEVILLE CITY PUBLIC WORKS COMM | | | SCAC3 |
| 5437 | FPWS | FIREPROOF WAREHOUSE & STORAGE CO | | | SCAC3 |
| 5438 | FPX | Fleishman's Pickles, Inc. | 7/1937-1/1941 | | NAKINA |
| 5439 | FPX | Fleishman's Pickles, Inc. | Apr-38 | | NRHS |
| 5440 | FPX | FLEISHMAN'S PICKLES, INC. | | | PWRC |
| 5441 | FPXC | FORMOSA PLASTICS EXPRESS CORP. | | | SCAC3 |
| 5442 | FPXN | FLIPPER TRANSPORTATION | | | SCAC4 |
| 5443 | FPXZ | FLEXI-VAN LEASING, INC. | | | PWRC |
| 5444 | FPXZ | Flexi-Van Leasing | | | RSRV |
| 5445 | FPXZ | FLEXI-VAN LEASING INC | | | SCAC4 |
| 5446 | FPY | Compagnie Africaine d'Aviation CAA | IATA: BU, Callsign: Africompany, IATA Designator changed from E9 | ZRE | AVCODES |
| 5447 | FPY | Fly Play hf. | IATA: OG, Callsign: Player, IATA Prefix: 224, Commenced operations on 24 June 2021. | IS | AVCODES |
| 5448 | FPY | African Company Airlines | | | ICAO1 |
| 5449 | FPZ | FEDERAL PAPER | | | PWRC |
| 5450 | FQ | Air Aruba N.V. | ICAO: ARU, Callsign: Aruba, Ceased operations on 23 October 2000. | ARU | AVCODES |
| 5451 | FQ | Thomas Cook Airline Belgium N.V. | ICAO: TCW, Callsign: Thomas Cook, IATA designator changed to HQ* | B | AVCODES |
| 5452 | FQ | African Medical and Research Foundation | Callsign: Flydoc, Designator FQ recalled by IATA | EAK | AVCODES |
| 5453 | FQ | Brindabella Airlines PTY Ltd. | Ceased operations. | AUS | AVCODES |
| 5454 | FQ | Minerve | | F | AVCODES |
| 5455 | FQ | Avia Airlink International Corporation d/b/a Fenix Airways | IATA Prefix: 752, | USA | AVCODES |
| 5456 | FQ | SOL S.A. Lineas Aereas d/b/a Flyest Lineas Aereas | Filed for bankruptcy in November 2020. | RA | AVCODES |
| 5457 | FQA | Quikjet Cargo Airlines Pvt. Ltd. | IATA: QO, IATA Prefix: 723, | IND | AVCODES |
| 5458 | FQA | Quikjet Cargo Airlines Pvt. Ltd. d/b/a Quikjet Airlines | IATA: QO, IATA Prefix: 915, | IND | AVCODES |
| 5459 | FQAA | FAIRVIEW SHIPPING, INC. | | | SCAC3 |
| 5460 | FQAA | FREDRICKS EQUIPMENT INC | | | SCAC4 |
| 5461 | FQAS | FOUNDER AIR & SEA CARGO CO. LTD. | | | SCAC3 |
| 5462 | FQCI | FREIGHTQUOTE.COM INC | | | SCAC4 |
| 5463 | FQCO | FAST CARGO US (LA) INC. | | | SCAC3 |
| 5464 | FQIC | FREIGHT QUEENS INC | | | SCAC4 |
| 5465 | FQML | FQM LLC | | | SCAC4 |
| 5466 | FQMU | MINERA PANAMA S.A. | | PA | BIC |
| 5467 | FQRX | Franklin Quality Refining Co. | 8/1920 | | NAKINA |
| 5468 | FQRX | Franklin Quality Oil Co. | 7/1923 | | NAKINA |
| 5469 | FQRX | FRANKLIN QUALITY OIL CO. {FRANKLIN QUALITY REFINING CO.] | | | PWRC |
| 5470 | FQSL | FSL LINE INC | | | SCAC4 |
| 5471 | FQTC | F T C LTD | | | SCAC4 |
| 5472 | FQTL | F T L GLOBAL CARRIERS LLC | | | SCAC4 |
| 5473 | FQTP | FREEDOM QUEST TRANSPORT | | | SCAC4 |
| 5474 | FQTS | FROST, LESLIE | | | SCAC4 |
| 5475 | FR | Flight Refuelling Ltd. | Callsign: Tankair, | GB | AVCODES |
| 5476 | FR | Ryanair Ltd. | ICAO: RYR, Callsign: Ryanair, IATA Prefix: 224, | IRL | AVCODES |
| 5477 | FR | FRAM | | NL | TRAFFIC |
| 5478 | FR | Fragonset Railways | | UK | VKM |
| 5479 | FR&N | Flint River & Northeastern R.R. (Co.) | 7/1923-7/1954 | | NAKINA |
| 5480 | FR&N | Flint River & Northeastern R.R. | 4/38-1/52 | | NRHS |
| 5481 | FR&N | FLINT RIVER & NORTHEASTERN RAILROAD CO. | | | PWRC |
| 5482 | FRA | FR Aviation Ltd. | Callsign: Rushton, Name changed to Cobham Aviation Services. ICAO designator changed from FLR | GB | AVCODES |
| 5483 | FRA | Cobham Aviation Services | Callsign: Rushton, Name changed from FR Aviation Ltd. ICAO designator changed from FLR | GB | AVCODES |
| 5484 | FRA | FR Aviation | | | ICAO1 |
| 5485 | FRA | *FEDERAL RAILROAD ADMINISTRATION | | | PWRC |
| 5486 | FRA | *FRONT RANGE AIRPORT LIMO SERVICE | | | PWRC |
| 5487 | FRAB | FRANKLIN, BOBBY | | | SCAC3 |
| 5488 | FRAB | FERNANDEZ RACING LLC | | | SCAC4 |
| 5489 | FRAD | FRANZEN ENTERPRISES | | | SCAC3 |
| 5490 | FRAF | FRIEND LOGISTICS LLC | | | SCAC4 |
| 5491 | FRAG | FRANCO, RICHARD AGENCY | | | SCAC3 |
| 5492 | FRAH | FRISKNEY AND HARDING TRUCKING INC | | | SCAC3 |
| 5493 | FRAI | FRATE SERVICE INC | | | SCAC3 |
| 5494 | FRAJ | FRANCIS TRUCK LINE INC | | | SCAC3 |
| 5495 | FRAJ | FRY, CRAIG | | | SCAC4 |
| 5496 | FRAK | FRANKS TRUCKING | | | SCAC3 |
| 5497 | FRAK | FREIGHT-RITE AMERICA INC | | | SCAC4 |
| 5498 | FRAM | FLOTA AMAZONICA S.A. | | | SCAC3 |
| 5499 | FRAM | FERMES RICHARD INC | | | SCAC4 |
| 5500 | FRAN | FRANK DELIVERY SERVICE INC | | | SCAC3 |
