| 1 | FD | Cityflyer Express | ICAO: CFE, Callsign: Flyer, IATA Prefix: 844, Merged into British Airways | GB | AVCODES |
| 2 | FD | Euroworld | ICAO: EWD, Change of name to CityFlyer Express FD/CFE | GB | AVCODES |
| 3 | FD | Ford Motor Co. Ltd. | ICAO: FOB, Callsign: Fordair, Designator FD recalled by IATA. Name changed from Ford of Europe Incorporated | GB | AVCODES |
| 4 | FD | Ford of Europe Incorporated | Callsign: Fordair, Name changed to Ford Motor Co. Ltd. | GB | AVCODES |
| 5 | FD | Thai AirAsia Co. Ltd. | ICAO: AIQ, Callsign: Thai Asia, IATA Prefix: 900, Subsidary of Air Asia Malaysia AK/AXM | T | AVCODES |
| 6 | FD | Shipbucket FD scale | | | TRAFFIC |
| 7 | FD | Friedrich Duensing GmbH | | DE | VKM |
| 8 | FDA | African Airlines | Callsign: Air Sankore, | RMM | AVCODES |
| 9 | FDA | Fuji Dream Airlines Co. Ltd. | IATA: JH, | J | AVCODES |
| 10 | FDA | African Airlines | | | ICAO1 |
| 11 | FDA | Fuji Dream Airlines | | J | TRAFFIC |
| 12 | FDAA | FORTUNE METAL INC OF | | | SCAC4 |
| 13 | FDAC | F D LOGISTICS LLC | | | SCAC4 |
| 14 | FDAE | FOSSUM, DON & ANNE | | | SCAC4 |
| 15 | FDAF | F D S AIR FREIGHT | | | SCAC3 |
| 16 | FDAF | F D OF GA INC | | | SCAC4 |
| 17 | FDAI | FEHR, D A INC | | | SCAC3 |
| 18 | FDAM | FRATELLI D'AMICCO ARMATORI S P A | | | SCAC3 |
| 19 | FDAM | FRATELLI D'AMICO ARMATORI S P A | | | SCAC4 |
| 20 | FDAN | FDA LOGISTICS LLC | | | SCAC4 |
| 21 | FDAQ | FOUND AIRCRAFT CANADA INC | | | SCAC4 |
| 22 | FDAT | FORD, ALLAN TRUCKING LTD | | | SCAC4 |
| 23 | FDAU | FORMOSA DAIKIN ADVANCED CHEMICALS | | RC | BIC |
| 24 | FDAW | FORTNER DAIRY | | | SCAC4 |
| 25 | FDAY | FOUR DAY TIRE STORES (4 DAY TIRE ST | | | SCAC3 |
| 26 | FDAY | FIRST DAY LOGISTICS CORPORATION | | | SCAC4 |
| 27 | FDAZ | FLEXI VAN LEASING INC | | | SCAC4 |
| 28 | FDB | Dubai Aviation Corporation d/b/a flydubai | IATA: FZ, Callsign: Sky Dubai, Founded on 19 March 2008. Commenced operations on 01 June 2009. | UAE | AVCODES |
| 29 | FDB | FISHER, D B CHARTER BUS COMPANY INC | | | SCAC4 |
| 30 | FDBA | DBA Luftfahrtgesellschaft mbH | Real: BAG, former Deutsche BA | D | TRAFFIC |
| 31 | FDBK | FEEDBUCKET EXPRESS INC | | | SCAC4 |
| 32 | FDBP | FINE, DAVID B PRODUCE INC | | | SCAC3 |
| 33 | FDBP | FIVE ONE EIGHT SEVEN TWO EIGHT TWO | | | SCAC4 |
| 34 | FDBS | FREIGHT DISTRIBUTION SERVICES INC | | | SCAC3 |
| 35 | FDBS | FRWD LOGISTICS LLC | | | SCAC4 |
| 36 | FDBT | FEDIE, BILL TRUCKING | | | SCAC3 |
| 37 | FDC | Frederick Air Taxi Service, Inc. | Callsign: Federick, | USA | AVCODES |
| 38 | FDC | Ferrocarrilles de Cuba | Real: FCC | C | TRAFFIC |
| 39 | FDCA | FEDICIA INVESTMENTS LTD | | | SCAC3 |
| 40 | FDCA | FEDEX CUSTOM CRITICAL AUTOTRANS INC | | | SCAC4 |
| 41 | FDCC | FedEx Custom Critical | | | SCAC2 |
| 42 | FDCC | FEDEX CUSTOM CRITICAL INC | | | SCAC4 |
| 43 | FDCE | FIELDS, CARLOS E | | | SCAC3 |
| 44 | FDCE | FREIGHTDOC INTERNATIONAL INC | | | SCAC4 |
| 45 | FDCK | FDC ENTERPRISES LLC | | | SCAC4 |
| 46 | FDCL | FEDERATION CHEMICALS LIMITED | | | SCAC3 |
| 47 | FDCN | FLUIDESIGN COMPOSITES INC | | | SCAC4 |
| 48 | FDCO | FLEET DRIVEAWAY CORP | | | SCAC4 |
| 49 | FDCP | FDC TRANSPORT INC | | | SCAC3 |
| 50 | FDCS | F & D COAL SALES COMPANY | | | SCAC3 |
| 51 | FDCS | FUNDY CONTRACTORS LIMITED | | | SCAC4 |
| 52 | FDCT | FDC TRUCKING INC | | | SCAC3 |
| 53 | FDCT | FORDICE TRUCKING CO | | | SCAC4 |
| 54 | FDCU | SHANGHAI FNS LOGISTICS CO LTD | | PRC | BIC |
| 55 | FDCX | F.D. Cline Construction Co. | 1/1950 | | NAKINA |
| 56 | FDCX | F. D. CLINE CONSTRUCTION CO. | | | PWRC |
| 57 | FDD | Feeder Airlines | | SUD | AVCODES |
| 58 | FDDI | FDD INC | | | SCAC3 |
| 59 | FDDI | FERIA DEL DISCO DE LOS MOCHIS S A D | | | SCAC4 |
| 60 | FDDJ | FLETES DE CIUDAD JUAREZ | | | SCAC4 |
| 61 | FDDK | FOUR-D (4-D) TRUCKING INC | | | SCAC4 |
| 62 | FDDM | Union Pacific R.R. Co. | added 10/1995; 7/2000-7/2005 | | NAKINA |
| 63 | FDDM | Chicago and North Western Ry. Co. | added 1/1995; eliminated 10/1995 | | NAKINA |
| 64 | FDDM | Chicago and North Western Transportation Co. | 1/1980-1/1994; eliminated 1/1995 | | NAKINA |
| 65 | FDDM | Chicago and North Western Transportation Co. (Fort Dodge, Des Moines & Southern Ry. Co.) | 1/1975 | | NAKINA |
| 66 | FDDM | Chicago and North Western Transportation Co. (Fort Dodge, Des Moines & Southern Ry. Co.)) | Jan-75 | | NRHS |
| 67 | FDDM | Chicago and North Western Transportation Co. | 1/80-1/94; eliminated 1/95 | | NRHS |
| 68 | FDDM | Chicago and North Western Ry. Co. | added 1/95; eliminated 10/95 | | NRHS |
| 69 | FDDM | Union Pacific R.R. Co. | added 10/95; 7/2000 | | NRHS |
| 70 | FDDM | UP [CHICAGO & NORTH WESTERN] [FORT DODGE, DES MOINES & SOUTHERN] | | | PWRC |
| 71 | FDDM | Fort Dodge, Des Moines and Southern Railway (Union Pacific Railroad) | | | RSRV |
| 72 | FDDM | FORT DODGE, DES MOINES & SOUTHERN R | | | SCAC3 |
| 73 | FDDM | Fort Dodge, Des Moines & Southern Ry. Co. | | USA | TRAFFIC |
| 74 | FDDMS | Fort Dodge, Des Moines & Southern | | USA | TRAFFIC |
| 75 | FDDN | FLOYD, DENNIS, TRUCKING COMPANY, INC | | | SCAC3 |
| 76 | FDDN | FLOYD, DENNIS TRUCKING COMPANY INC | | | SCAC4 |
| 77 | FDDQ | FORDS DELIVER SERVICE | | | SCAC3 |
| 78 | FDDU | SEATRADE CHARTERING N.V. | | NL | BIC |
| 79 | FDE | Federico II Airways, S.p.A. | Callsign: Federeagle, Designator 2D* recalled by IATA | I | AVCODES |
| 80 | FDE | Federico II Airways, S.p.A. | IATA: 2D, Callsign: Federeagle, Ceased operations. Designator 2D* recalled by IATA | I | AVCODES |
| 81 | FDE | Federico II Airways, S.p.A. | IATA: X8, Callsign: Federeagle, IATA designator changed to 2D | I | AVCODES |
| 82 | FDE | Federal Express Corporation (Fedex) | IATA: MB, Callsign: Express, ICAO designator changed to FDX | USA | AVCODES |
| 83 | FdE | Freunde der Eisenbahn e.V. | Hamburg | D | privat-bahn.de |
| 84 | FDE | FedEx Express | | | SCAC2 |
| 85 | FDE | Federico II airways | | I | TRAFFIC |
| 86 | FDEB | FEDEX GROUND (2ND BAR CODE) | | | SCAC4 |
| 87 | FDEC | FEDEX GROUND (RETAIL LABEL DIVISION | | | SCAC4 |
| 88 | FDEG | FedEx Ground | | | SCAC2 |
| 89 | FDEG | FEDEX GROUND (CORPORATE) | | | SCAC4 |
| 90 | FDEI | FRONTIER FREIGHTWAYS | | | SCAC3 |
| 91 | FDEI | FRONTIER FREIGHTWAYS | | | SCAC4 |
| 92 | FDEK | FRINK, DEAN TRANSPORTATION | | | SCAC4 |
| 93 | FDEN | FEDEX CORP (GENERAL PURPOSE) | | | SCAC4 |
| 94 | FDEP | FUEL DEPOT INC | | | SCAC4 |
| 95 | FDER | FREDERICKS, NIEVES C | | | SCAC3 |
| 96 | FDET | FEDERAL TRUCKING COMPANY INC | | | SCAC3 |
| 97 | FDEV | FLETCHER, DEVON | | | SCAC4 |
| 98 | FDEX | Fruit Growers Express Co. | 7/1937-4/1970; eliminated 10/1974; 1/1975 | | NAKINA |
| 99 | FDEX | Fruit Growers Express Co. | 4/38-4/70; eliminated 10/74; 1/75 | | NRHS |
| 100 | FDEX | FRUIT GROWERS EXPRESS CO. | | | PWRC |
