| 1 | F | HONG KONG ISLANDS LINE AMERICA S.A. | | | PWRC |
| 2 | F | French railway companies | Different french railway companies in Era 2, used for the identical rolling stock. | F | TRAFFIC |
| 3 | F0 | Futura Gael | ICAO: FGL, Callsign: Applewood, Ceased operations on 07 September 2008 | IRL | AVCODES |
| 4 | F0 | Solitaire Air Ltd. Co. (d/b/a Fly Jordan) | ICAO: FJR, Callsign: Solitaire Air, ICAO Designaotr changed from STR | JOR | AVCODES |
| 5 | F1 | Farelogix Inc | Computer Reservation System | CDN | AVCODES |
| 6 | F2 | Falcon Air Express, Inc. | ICAO: FAO, Callsign: Panther, IATA designator changed to 6F*. | USA | AVCODES |
| 7 | F2 | Southern Independent Air Company (UNA) | Designator F2 recalled by IATA | UA | AVCODES |
| 8 | F2 | Fly Havayolu Tasimacilik A.S. | ICAO: FLM, Callsign: Fly World, Established and commenced operations in 2002. Ceased operation in January 2007. | TR | AVCODES |
| 9 | F2 | Omega Air Holdings LLC dba Focus Air | ICAO: FKS, | USA | AVCODES |
| 10 | F2 | Aerolineas Regionales, S.A. de C.V. | ICAO: RCQ, IATA Prefix: 720, Designator F2 recalled by IATA | MEX | AVCODES |
| 11 | F2 | Safarilink Aviation Limited | ICAO: XLK, Callsign: Safarilink, | EAK | AVCODES |
| 12 | F3 | Faso Airways SARL | ICAO: FSW, Callsign: Faso, Established in 2000. Ceased operations. | BF | AVCODES |
| 13 | F3 | Skyways Enterprise AB | ICAO: FLY, Callsign: Flying, Name changed from Flying Enterprise AB then changed to Fly Me Sweden AB | S | AVCODES |
| 14 | F3 | Aliway | Suspended all operations | I | AVCODES |
| 15 | F3 | Flying Enterprise AB | ICAO: FLY, Callsign: Flying, Name changed to Skyways Enterprise AB | S | AVCODES |
| 16 | F3 | Sky King, Inc. d/b/a Fly First Class | ICAO: SGB, Callsign: Songbird, Name changed to Skyking Inc. | USA | AVCODES |
| 17 | F3 | FlyMe Sweden AB | ICAO: FLY, Callsign: Flybird, IATA designator changed to SH | S | AVCODES |
| 18 | F3 | Sky King, Inc. | ICAO: SGB, Callsign: Songbird, Designator F3* recalled by IATA. Name changed from Sky King, Inc. d/b/a Fly First Class | USA | AVCODES |
| 19 | F3 | Caribbean Flight Training Center | Name changed to Propilot, Inc. | PRI | AVCODES |
| 20 | F3 | Propilot, Inc. t/a Million Air San Juan | Name changed from Caribbean Flight Training Center | PRI | AVCODES |
| 21 | F3 | FAI Rent-a-Jet AG | ICAO: IFA, Callsign: Red Angel, Designator F3* recalled by IATA. Name changed from Fai Airservice. ICAO callsign changed from Franken-Air | D | AVCODES |
| 22 | F3 | flyadeal Airline Company | ICAO: FAD, Callsign: Purple, ICAO callsign changed to Adeal. | SA | AVCODES |
| 23 | F3 | flyadeal Airline Company | ICAO: FAD, Callsign: Adeal, ICAO callsign changed from Purple. | SA | AVCODES |
| 24 | F4 | Eureca srl | ICAO: URE, Callsign: Eureca, Designator F4 recalled by IATA. Name changed from International Flying Services. ICAO designator changed from IFS | I | AVCODES |
| 25 | F4 | Albarka Air Services Ltd. | ICAO: NBK, Callsign: Al-Air, Name changed to Albarka Air Plc | WAN | AVCODES |
| 26 | F4 | International Flying Serivces | ICAO: IFS, Name changed to Eureca Srl | I | AVCODES |
| 27 | F4 | Albarka Air Plc | ICAO: NBK, Callsign: Al-Air, Founded in 1999. Commenced operations in March 2000. Ceased operations on 30 April 2007. Name changed from Albarka Air Services Ltd. | WAN | AVCODES |
| 28 | F4 | Shanghai Airlines Cargo International | ICAO: SHQ, Callsign: Shanghai Cargo, IATA Prefix: 825, | PRC | AVCODES |
| 29 | F4 | Air Charter, Inc. d/b/a Air Flamenco | IATA Prefix: 041, | PRI | AVCODES |
| 30 | F5 | Cosmic Air PVT. Ltd. | ICAO: COZ, Callsign: Cosmic Air, Designator F5* recalled by IATA | NEP | AVCODES |
| 31 | F5 | Archana Airways Ltd. | ICAO: ACY, Callsign: Archana, Founded on 29 April 1991. Commenced operations in 1993. Ceased operations during 2000. | IND | AVCODES |
| 32 | F5 | Aerotranscargo SRL | ICAO: ATG, Callsign: Moldcargo, ICAO callsign changed to Worldcargo | MD | AVCODES |
| 33 | F6 | China National Aviation Corporation (CNAC) | ICAO: CAG, Callsign: China National, IATA Prefix: 619, | PRC | AVCODES |
| 34 | F6 | First Cambodia Airlines Co. Ltd. | ICAO: FCC, Callsign: First Cambodia, | K | AVCODES |
| 35 | F6 | FaroeJet | IATA Prefix: 684, Ceased operations | FR | AVCODES |
| 36 | F6 | Faroe Jet | ICAO: RCK, Callsign: Rockrose, Founded in 2005. Ceased operations on 16 December 2006. | FR | AVCODES |
| 37 | F6 | FlyCompass Service S.r.l. | ICAO: FXP, Callsign: Sundial, Name changed to Buzz Aero S.r.l. Main share holder Valan International Cargo Charter. (Moldova) | RO | AVCODES |
| 38 | F6 | Fly2Sky o.o.d. | ICAO: VAW, Callsign: Sofia Jet, Name changed from Via Airways Ltd.ICAO designator changed to VAW w.e.f. 01 January 2016. ICAO callsign changed from Via Airways. Name changed from Air VIA Bulgarian Airways | BG | AVCODES |
| 39 | F6 | Buzz Aero S.r.l. | ICAO: FXP, Callsign: Sundial, Name changed from FlyCompass Service S.r.l. | RO | AVCODES |
| 40 | F7 | Valls Lineas Aereas Y Servicios SRL Kaiken Lineas Aereas | | RA | AVCODES |
| 41 | F7 | Volare Closed Joint-Stock Aircompany | ICAO: VRE, Callsign: Ukraine Volare, Designator F7* recalled by IATA. IATA changed from 1I | RUS | AVCODES |
| 42 | F7 | Flamingo Airways Limited | ICAO: KFL, Callsign: Nakuru, ICAO callsign changed to Batian / IATA designator changed from YS*. Subsidiary of Kenya Airways | EAK | AVCODES |
| 43 | F7 | Flamingo Airways Limited | ICAO: KFL, Callsign: Batian, ICAO callsign changed from Nakuru / IATA designator changed from YS*. Subsidiary of Kenya Airways | EAK | AVCODES |
| 44 | F7 | Flybaboo SA Geneve | ICAO: BBO, Callsign: Baboo, Merged into Darwin Airline 0D*/DWT in 2011. Designator F7 reinstated by IATA | CH | AVCODES |
| 45 | F7 | Darwin Airline SA Lugano | ICAO: DWT, Callsign: Darwin, IATA Prefix: 779, Name changed to Darwin Airline SA d/b/a Adria Airways Switzerland on 20 July 2017. Designator 0D reinstated by IATA. IATA designator changed from 4Y* | CH | AVCODES |
| 46 | F7 | Darwin Airline SA Lugano | ICAO: DWT, Callsign: Darwin, IATA Prefix: 779, Changed to using FlyBaboo IATA designator after airlines merged. Designator 0D reinstated by IATA. IATA designator changed from 4Y* | CH | AVCODES |
| 47 | F7 | Darwin Airline SA d/b/a Adria Airways Switzerland | ICAO: DWT, Callsign: Darwin, IATA Prefix: 779, Ceased operations on 12 December 2017. Name changed from Darwin Airline SA Lugano d/b/a Etihad Regional on 20 July 2017. Previosuly changed from Darwin Airline SA Lugano. Designator 0D reinstated by IATA. IATA designator changed from 4Y* | CH | AVCODES |
| 48 | F7 | The Airline iFly | ICAO: RSY, Callsign: Russian Sky, IATA designator changed from I4*. Designator H5 recalled by IATA | RUS | AVCODES |
| 49 | F8 | Air Montreal (Air Holdings Inc.) | ICAO: AMO, Callsign: Air Montreal, | CDN | AVCODES |
| 50 | F8 | Flying Carpet Air Transport & Services sal | ICAO: FCR, Callsign: Flying Carpet, IATA designator changed to 7Y* | RL | AVCODES |
| 51 | F8 | Freedom Airlines, Inc. | ICAO: FRL, Callsign: Freedom Air, Established in March 2002. Commenced operations in October 2002. Ceased operations on 31 August 2010. | USA | AVCODES |
| 52 | F8 | Flair Airlines Ltd | ICAO: FLE, Callsign: Flair, | CDN | AVCODES |
| 53 | F9 | Frontier Airlines, Inc. | ICAO: FFT, Callsign: Frontier Flight, IATA Prefix: 422, | USA | AVCODES |
| 54 | FA | Safair Operations (Proprietary) Limited t/a FlySafair | ICAO: SFR, Callsign: Cargo, Name changed to Safair Operations (Proprietary) Ltd. dba Safair. Name changed from Safair (Proprietary) Ltd. | ZA | AVCODES |
| 55 | FA | Centennial Flight Centre Ltd. d/b/a Centennial Airlines | ICAO: CNS, Callsign: Centennial, IATA designator FA voluntary surrendered | CDN | AVCODES |
| 56 | FA | Safair (Proprietary) Ltd. | ICAO: SFR, Callsign: Cargo, IATA Prefix: 640, Name changed to Safair Operations (Proprietary) Limited t/a FlySafair. Name changed from Safair Freighters (Pty) Ltd. | ZA | AVCODES |
| 57 | FA | Airline Airways Limited | Name changed to FreshAer Airlines Limited | IRL | AVCODES |
| 58 | FA | Air American, Inc. | | USA | AVCODES |
| 59 | FA | FreshAer Airlines Limited | Callsign: Wildgoose, Ceased operatioin. Name changed from Airline Airways Limited | GB | AVCODES |
| 60 | FA | Safair Operations (Proprietary) Ltd. dba Safair | ICAO: SFR, Callsign: Cargo, Name changed from Safair Operations (Proprietary) Limited t/a FlySafair. Name changed from Safair (Proprietary) Ltd. | ZA | AVCODES |
| 61 | FA | Safair Operations (Proprietary) Ltd. dba Safair | ICAO: SFR, Callsign: Cargo, IATA Prefix: 640, Name changed from Safair Operations (Proprietary) Limited t/a FlySafair. Name changed from Safair (Proprietary) Ltd. | ZA | AVCODES |
| 62 | FA | Freight Australia | | AUS | TRAFFIC |
| 63 | FAA | Federal Aviation Administration | | USA | AVCODES |
| 64 | FAA | Fuerza Aérea Argentina | | RA | TRAFFIC |
| 65 | FAAA | FARRELL LINES INC. | | | PWRC |
| 66 | FAAA | FOUR A TRUCKING INC (4-A TRUCKING I | | | SCAC3 |
| 67 | FAAA | FAST ACTION TRUCKING INC | | | SCAC4 |
| 68 | FAAF | FALCON GLOBAL EDGE INC | | | SCAC4 |
| 69 | FAAI | FIRST AMERICAN ARTIFICIAL FLOWERS I | | | SCAC3 |
| 70 | FAAM | FRANCO ALCOCER, ALICIA | | | SCAC4 |
| 71 | FAANG | Forças Armadas Angolanas | Real: FAA | ANG | TRAFFIC |
| 72 | FAAP | FOUR-ACRE (4-ACRE) TRANSPORT LLC | | | SCAC4 |
| 73 | FAAS | FARMERS AG AND GRAIN SUPPLY INC | | | SCAC4 |
| 74 | FAAU | MAERSK A/S | | DK | BIC |
| 75 | FAAU | P & O NEDLLOYD BV | | | SCAC4 |
| 76 | FAAUS | Federal Aviation Administration | Real: FAA | USA | TRAFFIC |
| 77 | FAB | Bradley Air Services Limited t/a First Air | IATA: 7F, IATA Prefix: 245, Merged into Canadian North w.e.f. 26 May 2021. Name changed from Bradley Air Services Limited. | CDN | AVCODES |
| 78 | FAB | Bradley Air Services Limited | Callsign: Bradley, Name changed to First Air. (ICAO callsign First Air - Canada only) | CDN | AVCODES |
| 79 | FAB | First Air | IATA: 7F | | ICAO1 |
| 80 | FAB | FULLINGTON TRAILWAYS LLC | | | SCAC4 |
| 81 | FAB | Fuerza Aérea Boliviana | | BOL | TRAFFIC |
| 82 | FABB | FARBER BROS | | | SCAC3 |
| 83 | FABC | F A B TRANSIT INC | | | SCAC3 |
| 84 | FABC | F A B TRANSIT INC | | | SCAC4 |
| 85 | FABD | FABRO ENTERPRISES LIMITED | | | SCAC4 |
| 86 | FABE | FAB EXPRESS, INC | | | SCAC3 |
| 87 | FABE | First Aberdeen | | GB | TRAFFIC |
| 88 | FABI | F A B TRUCKING INC | | | SCAC3 |
| 89 | FABI | FABRIS INC | | | SCAC4 |
| 90 | FABK | FAST BROKERS INTERNATIONAL | | | SCAC3 |
| 91 | FABL | FABRAL (ALCAN BUILDING PRODUCTS DIV | | | SCAC3 |
| 92 | FABL | FRASER VALLEY PACKERS INC | | | SCAC4 |
| 93 | FABM | FRANK & BROTHERS MOVING CO INC | | | SCAC3 |
| 94 | FABN | Ferrovia Alifana e Benevento Napoli | | I | TRAFFIC |
| 95 | FABN | Ferrovia Alifana e Benevento Napoli s.r.l. | | IT | VKM |
| 96 | FABP | FAB TRANSPORTATION INC | | | SCAC3 |
| 97 | FABP | FARIAS NIETO, MARGARITA | | | SCAC4 |
| 98 | FABR | FARMAN BROS PICKLE CO | | | SCAC3 |
| 99 | FABR | FABRICANTES CONSOLIDADOS SA DE CV | | | SCAC4 |
| 100 | FABS | FAB SEAL INDUSTRIAL LINERS INC | | | SCAC4 |
