| 3201 | FJO | Flexjet Operations Malta Limited | Callsign: Flex Malta, | M | AVCODES |
| 3202 | FJOH | FREEMAN, JOHN | | | SCAC3 |
| 3203 | FJOR | FJORD TRANSPORT LLC | | | SCAC4 |
| 3204 | FJOY | FAITH JOURNEY | | | SCAC4 |
| 3205 | FJPM | F & J PIANO MOVERS | | | SCAC3 |
| 3206 | FJPS | FOREMANS, JOHN PROFESSIONAL SERVICE | | | SCAC3 |
| 3207 | FJPX | F.J. Peterson, Inc. (North Western Refrigerator Line Co.) | 7/1935 | | NAKINA |
| 3208 | FJPX | FORT JAMES PENNINGTON, INC. | | | PWRC |
| 3209 | FJR | Solitaire Air Ltd. Co. (d/b/a Fly Jordan) | IATA: F0, Callsign: Solitaire Air, ICAO Designaotr changed from STR | JOR | AVCODES |
| 3210 | FJRA | F J R ASSOCIATES | | | SCAC3 |
| 3211 | FJS | Florida Jet Service, Inc. | Callsign: Floridajet, | USA | AVCODES |
| 3212 | FJS | Florida Jet Service | | | ICAO1 |
| 3213 | FJSC | FESMIRE, J S HAULING INCORPORATED | | | SCAC4 |
| 3214 | FJSD | FJERSTAD TRUCKING | | | SCAC4 |
| 3215 | FJSI | FULKROAD, JAY & SONS INC | | | SCAC4 |
| 3216 | FJSN | F & J & SONS TRUCKING | | | SCAC3 |
| 3217 | FJT | Fly Jet | Callsign: Fly Jet, | I | AVCODES |
| 3218 | FJT | Future Air Co., Ltd. | Callsign: Future Air, | PRC | AVCODES |
| 3219 | FJTA | FOSTER, JEFF TRUCKING BROKERAGE DIV | | | SCAC4 |
| 3220 | FJTG | FABIAN, JACK TRUCKING CORP | | | SCAC3 |
| 3221 | FJTG | FLORES, JUAN TRUCKING | | | SCAC4 |
| 3222 | FJTI | FLEMING, JOHN TRUCKING INC | | | SCAC3 |
| 3223 | FJTK | F&J TRUCKING, INC | | | SCAC3 |
| 3224 | FJTK | F & J TRUCKING INC | | | SCAC4 |
| 3225 | FJTO | FOX, J TRANSPORT INC | | | SCAC3 |
| 3226 | FJTP | FLYING J TRANSPORTATION CANADA INC | | | SCAC4 |
| 3227 | FJTQ | FIORILLO, JOSEPH TRUCKING CORP | | | SCAC3 |
| 3228 | FJTR | FARRIS, JOHN TRUCKING | | | SCAC3 |
| 3229 | FJTS | FEDERAL JOHNSON TRANSFER & STORAGE | | | SCAC3 |
| 3230 | FJTS | FEDERAL/JOHNSON MOVING & STORAGE LI | | | SCAC4 |
| 3231 | FJW | fastjet Zimbabwe Limited | IATA: FN, Callsign: Zimbird, | ZW | AVCODES |
| 3232 | FJWL | FREYAS JEWELLERY | | | SCAC4 |
| 3233 | FJWT | FRANKLIN, J W TRUCKING | | | SCAC3 |
| 3234 | FJWU | FUSHUN JUNWEI LOGISTICS CO., LTD. | | PRC | BIC |
| 3235 | FJX | Jet Sky Cargo and Air Charter Limited | | EAK | AVCODES |
| 3236 | FJXI | FUJIMO TRANSPORT INC | | | SCAC4 |
| 3237 | FK | Keewatin Air Ltd. | ICAO: KEW, Callsign: Blizzard, Designator FK* recalled by IATA. IATA designator changed from 6K. Founded in 1998. in 1998. | CDN | AVCODES |
| 3238 | FK | Flamenco Airways, Inc. | ICAO: WAF, Designator FK recalled by IATA | PRI | AVCODES |
| 3239 | FK | Africa West | ICAO: WTA, Callsign: West Togo, IATA Prefix: 858, Designator FK recalled by IATA. IATA Desginator changed from FK*. Designator 3L* recalled by IATA | TG | AVCODES |
| 3240 | FK | Africa West | ICAO: WTA, Callsign: West Togo, IATA Prefix: 858, IATA Desginator changed to FK. Designator 3L* recalled by IATA | TG | AVCODES |
| 3241 | FK | Europe Falcon Service | ICAO: EFS, Designator FK recalled by IATA | F | AVCODES |
| 3242 | FK | Kelowna Flightcraft Air Charter Ltd. | ICAO: KFA, Callsign: Flightcraft, IATA Prefix: 758, IATA designator changed from KW*. Designator KW* reinstated by IATA | CDN | AVCODES |
| 3243 | FK | ? (Frankfurt-Königsteinek Eisenbahn) | | D | TRAFFIC |
| 3244 | FKAR | FICK, ART RECYCLING INC | | | SCAC3 |
| 3245 | FKAR | FARMINGTON TRUCKING INCORPORATED | | | SCAC4 |
| 3246 | FKBT | FRANKIE B TRUCKING | | | SCAC3 |
| 3247 | FKCC | FJK LOGISTICS LTD | | | SCAC4 |
| 3248 | FKCH | FRANKLIN COACH CORP | | | SCAC3 |
| 3249 | FKCI | FOUR (4) K CARTAGE INC | | | SCAC4 |
| 3250 | FKCL | FUKOKU KONPO CO LTD | | | SCAC3 |
| 3251 | FKCO | FINELLI-KIRSCHBAUM TRUCKING CORP | | | SCAC3 |
| 3252 | FKCQ | FAIRBURN, KENNETH C | | | SCAC3 |
| 3253 | FKCT | FROST, KENT CANYONLAND TOURS | | | SCAC3 |
| 3254 | FKCT | FITZGERALD, GLENN TRUCKING LTD | | | SCAC4 |
| 3255 | FKCX | Farmers Cooperative Creamery Co. (North Western Refrigerator Line Co.) | 7/1935 | | NAKINA |
| 3256 | FKDN | FAK INC | | | SCAC4 |
| 3257 | FKDS | FEIKEN, DENNIS | | | SCAC4 |
| 3258 | FKDV | FRICK, DAVID G | | | SCAC3 |
| 3259 | FKE | Frankfurt-Königsteiner Eisenbahn AG | Königstein (HLB-Gruppe) | D | privat-bahn.de |
| 3260 | FKE | Frankfurt-Königsteiner Eisenbahn AG | | D | TRAFFIC |
| 3261 | FKED | FREDERICK, EDWARD L | | | SCAC3 |
| 3262 | FKEE | FIVE (5) K EXPRESS | | | SCAC4 |
| 3263 | FKEH | FRIESEN, KENNETH | | | SCAC4 |
| 3264 | FKEL | FRISK FARMS | | | SCAC3 |
| 3265 | FKEP | F & K ENTERPRISES | | | SCAC3 |
| 3266 | FKEP | FRITZEN TRUCKING INC | | | SCAC4 |
| 3267 | FKER | FASTREK EXPRESS | | | SCAC4 |
| 3268 | FKEV | FOUR (4) KENTERPRISES | | | SCAC4 |
| 3269 | FKFS | FALKOWSKI FUEL SERVICES INC | | | SCAC4 |
| 3270 | FKGC | FREIGHT KING LLC | | | SCAC4 |
| 3271 | FKGE | FKG ENTERPRISE | | | SCAC4 |
| 3272 | FKGH | FLECK, G H & SONS LTD | | | SCAC4 |
| 3273 | FKGJK | MÁV FKG Felépítménykarbantartó és Gépjavító Kft. | | HU | VKM |
| 3274 | FKGL | FREELS TRUCKING LLC | | | SCAC4 |
| 3275 | FKHQ | FIKSE, HENRY | | | SCAC3 |
| 3276 | FKI | Flm Aviation Mohrdieck GmbH & Co. KG | Callsign: Kiel Air, | D | AVCODES |
| 3277 | FKI | FLM Aviation Mohrdieck | | | ICAO1 |
| 3278 | FKIC | FLYING K INC | | | SCAC4 |
| 3279 | FKIN | FRANKLIN INTERNATIONAL INC (CORPORA | | | SCAC3 |
| 3280 | FKIN | FAK LOGISTICS, INC. | | | SCAC4 |
| 3281 | FKKU | DALKOMHOLOD JSC | | RUS | BIC |
| 3282 | FKKU | FUJITRANS ASIA PTE LTD | | | SCAC4 |
| 3283 | FKKX | Farmers Co-operative Creamery Co. (North Western Refrigerator Line Co.) | 7/1935 | | NAKINA |
| 3284 | FKL | Kelner Airways Ltd, V. | Callsign: Kelner, Name changed to V. Kelner Pilatus Center, Inc. | CDN | AVCODES |
| 3285 | FKL | V. Kelner Pilatus Center, Inc. | Callsign: Kelner, Name changed to Levaero Aviation in May 2015. Name changed from Kelner Airways Ltd, V. | CDN | AVCODES |
| 3286 | FKL | Levaero Aviation | Name changed from V. Kelner Pilatus Center, Inc. in May 2015. Name changed from Kelner Airways Ltd, V. | CDN | AVCODES |
| 3287 | FKL | Kelner Airways | | | ICAO1 |
| 3288 | FKLA | FOULK, L A CO | | | SCAC3 |
| 3289 | FKLC | FRANKLIN CORPORATION | | | SCAC3 |
| 3290 | FKLC | FRANKLIN LOGISTICS COMPANY LLC | | | SCAC4 |
| 3291 | FKLD | FRANK, LINDSEY | | | SCAC4 |
| 3292 | FKLE | FORKLIFT ENTERPRISES INC | | | SCAC3 |
| 3293 | FKLE | FORKLIFT ENTERPRISES INC | | | SCAC4 |
| 3294 | FKLG | FICKLING CARTAGE AND STORAGE | | | SCAC3 |
| 3295 | FKLI | FRANKLIN COMPANY, THE | | | SCAC3 |
| 3296 | FKLN | FRANKLIN EXPRESS | | | SCAC3 |
| 3297 | FKLO | FINKE LOGGING COMPANY INCORPORATED | | | SCAC3 |
| 3298 | FKLT | FRANKLIN TRANSPORTATION CORP | | | SCAC4 |
| 3299 | FKMS | FAIRBANKS MOVING & STORAGE INC | | | SCAC4 |
| 3300 | FKMT | FRANKLIN METAL TRADING CORPORATION | | | SCAC4 |
