| 5601 | FRDN | +CHATTAHOOCHEE BAY RAILROAD, INC. [H & S RAILROAD COMPANY, INC.] | | | PWRC |
| 5602 | FRDN | Ferdinand Railroad (H and S Railroad) | | | RSRV |
| 5603 | FRDN | FERDINAND & HUNTINGBURG RAILROAD (H | | | SCAC3 |
| 5604 | FRDO | FREEDOM TRANSPORT CO | | | SCAC3 |
| 5605 | FRDQ | FORD, J T TRUCKING CO | | | SCAC3 |
| 5606 | FRDS | FORDS EXPRESS AND TRANSFER CO, INC | | | SCAC3 |
| 5607 | FRDS | FREEDOM TRANSPORT INC | | | SCAC4 |
| 5608 | FRDU | FERDIA FREIGHT LTD | | | SCAC3 |
| 5609 | FRDV | FREEDOM TRANSFER INC | | | SCAC4 |
| 5610 | FRDX | Ford Motor Co. | 7/1923-7/1954; eliminated 10/1954; 10/1957-4/1961 (not listed) | | NAKINA |
| 5611 | FRDX | Ford Motor Co. | 4/38-4/61 | | NRHS |
| 5612 | FRDX | FORD MOTOR CO. | | | PWRC |
| 5613 | FRDX | Ford Motor Co. | | USA | TRAFFIC |
| 5614 | FRDY | FREDDYS TRUCKING | | | SCAC3 |
| 5615 | FRE | Aviation Services, Ltd. d/b/a Freedom Air | IATA: FP, Callsign: Freedom, Operations suspended on 01 April 2014. | GUM | AVCODES |
| 5616 | FRE | Boeing Tactical | Callsign: Freedom, ICAO callsign changed from Hornet | USA | AVCODES |
| 5617 | FRE | Freedom Air | IATA: FP | | ICAO1 |
| 5618 | FREA | FREEPORT TRANSPORT, INC | | | SCAC3 |
| 5619 | FREA | FREEPORT TRANSPORT INDUSTRIES INC | | | SCAC4 |
| 5620 | FREB | FRASER, E B INC | | | SCAC3 |
| 5621 | FREB | FREEBIRD TRANSPORTATION CO INC | | | SCAC4 |
| 5622 | FREC | FRECHETTE, RICHARD INC | | | SCAC4 |
| 5623 | FRED | FREEDOM TRANSPORT | | | SCAC4 |
| 5624 | FREF | FREEL BROS | | | SCAC3 |
| 5625 | FREF | FREIGHT SYSTEMS LOGISTICS | | | SCAC4 |
| 5626 | FREG | FREIGHT SPECIALISTS | | | SCAC3 |
| 5627 | FREG | FREMA REFRIGERADOS | | | SCAC4 |
| 5628 | FREIS | Stadt/Landkresi Freising Bus | | D | TRAFFIC |
| 5629 | FREJ | FREEMAN, JACK, TRUCKING CO | | | SCAC3 |
| 5630 | FREK | FARRELL TRUCKING LLC | | | SCAC4 |
| 5631 | FREL | FRIESEN LIVESTOCK | | | SCAC4 |
| 5632 | FREN | FRENETTE TRANSPORT INC | | | SCAC3 |
| 5633 | FREN | FRENCH CREEK SEAFOOD LTD | | | SCAC4 |
| 5634 | FREN | France Renouvellement | | F | TRAFFIC |
| 5635 | FREQ | FREIGHTWAY CORPORATION | | | SCAC3 |
| 5636 | FREQ | FREEDOM INTERNATIONAL | | | SCAC4 |
| 5637 | FRER | FRERICHS FREIGHT LINES INC | | | SCAC3 |
| 5638 | FRER | FRERICHS FREIGHT LINES INC | | | SCAC4 |
| 5639 | FRES | FRIENDSHIP TRUCKING INC | | | SCAC3 |
| 5640 | FRET | | | F | TRAFFIC |
| 5641 | FRETIT | FRET Italia | | I | TRAFFIC |
| 5642 | FREU | ABS INDUSTRIAL VERIFICATION, INC. | | | PWRC |
| 5643 | FREU | ABS Industrial Verification | | | RSRV |
| 5644 | FREU | HARAN FRERES SARL | | | SCAC4 |
| 5645 | FREV | FT RECOVERY EQUITY EXCHANGE | | | SCAC4 |
| 5646 | FREX | Fremont Elevator Co. | added 7/1970; eliminated 10/1974 | | NAKINA |
| 5647 | FREX | Federal Refrigerator Express Co. | 7/1930 | | NAKINA |
| 5648 | FREX | Fremont Elevator Co. | added 7/70; eliminated 10/74 | | NRHS |
| 5649 | FREX | *EDERAL REFRIGERATOR EXPRESS CO. | | | PWRC |
| 5650 | FREX | *FREMONT ELEVATOR CO. | | | PWRC |
| 5651 | FREY | FREYS MOTOR EXPRESS, INC | | | SCAC3 |
| 5652 | FREY | FREYA SHIPPING LIMITED | | | SCAC4 |
| 5653 | FRF | Air Fret Afrique | Callsign: Airfret Afrique, | SN | AVCODES |
| 5654 | FRF | Fleet Air International Ltd. | Callsign: Fairfleet, | H | AVCODES |
| 5655 | FRFA | FRAZIER-FARRIS INC | | | SCAC3 |
| 5656 | FRFD | FRANKS FORWARDING CO | | | SCAC3 |
| 5657 | FRFD | FRG TRANSPORT | | | SCAC4 |
| 5658 | FRFE | FRIIS FREDERIKSEN | | | SCAC3 |
| 5659 | FRFE | FOREVER FURNITURE GALLERIES | | | SCAC4 |
| 5660 | FRFG | FOCUS TRANSPORT INC | | | SCAC4 |
| 5661 | FRFH | FREEDOM FREIGHT SYSTEMS INC | | | SCAC3 |
| 5662 | FRFH | FRANKFORT TRUCK SERVICES, LTD | | | SCAC4 |
| 5663 | FRFJ | FREIGHT FORCE INC | | | SCAC3 |
| 5664 | FRFJ | FREIGHT FORCE INC | | | SCAC4 |
| 5665 | FRFK | FREEMAN FREIGHT SYSTEMS INC | | | SCAC3 |
| 5666 | FRFL | FROMET FUEL CARRIERS | | | SCAC3 |
| 5667 | FRFM | FREEDOM FREIGHTWAYS | | | SCAC3 |
| 5668 | FRFO | FREIGHTCOR FORWARDING SERVICES INC | | | SCAC3 |
| 5669 | FRFO | FOUR SEASONS PERFORMANCE INC | | | SCAC4 |
| 5670 | FRFQ | FLAT AMER & FARMINGTON EXPRESS | | | SCAC3 |
| 5671 | FRFR | FREIGHT FORWARDERS INCORPORATED | | | SCAC3 |
| 5672 | FRFT | FRIEND FREIGHTWAYS | | | SCAC4 |
| 5673 | FRFW | FRONTIER FREIGHT FORWARDERS INC | | | SCAC3 |
| 5674 | FRFY | FREEDOM FREIGHTWAYS INC | | | SCAC3 |
| 5675 | FRG | Freight Runners Express, Inc. | Callsign: Freight Runners, | USA | AVCODES |
| 5676 | FRG | Freight Runners Express | | | ICAO1 |
| 5677 | FRG | Fragonset Railways | 1997 - 2005 | GB | TRAFFIC |
| 5678 | FRG | Fergrupo - Construções e Técnicas Ferroriárias S.A. | | PT | VKM |
| 5679 | FRGA | FERRELLGAS INC | | | SCAC4 |
| 5680 | FRGC | FREIGHT CARRIER CORP | | | SCAC3 |
| 5681 | FRGD | FRIGID FOOD EXPRESS, INC | | | SCAC3 |
| 5682 | FRGD | FREIGHT DIRECTION INC | | | SCAC4 |
| 5683 | FRGE | FORGE VILLAGE TRANSPORTATION CO, IN | | | SCAC3 |
| 5684 | FRGG | FRONT RANGE TRUCKING INC | | | SCAC3 |
| 5685 | FRGG | FLETES RAPIDOS GALLEGOS | | | SCAC4 |
| 5686 | FRGI | FARGO INDUSTRIES INC | | | SCAC3 |
| 5687 | FRGI | FRAGILE TRANSPORT | | | SCAC4 |
| 5688 | FRGJ | FREIGHT RIGHT GLOBAL LOGISTICS | | | SCAC4 |
| 5689 | FRGK | FARGO TRUCKING COMPANY INC | | | SCAC4 |
| 5690 | FRGL | FREEMAN, GARY L | | | SCAC3 |
| 5691 | FRGM | FREIGHT SYSTEMS INC | | | SCAC3 |
| 5692 | FRGN | FAIRRINGTON TRANSPORTATION CORPORATION | | | SCAC3 |
| 5693 | FRGO | FREEDMAN FREIGHT LINES | | | SCAC3 |
| 5694 | FRGQ | FUTURA LOGISTICS CORP | | | SCAC4 |
| 5695 | FRGR | FERGUSON FARMS TRANSPORTATION | | | SCAC3 |
| 5696 | FRGS | FERGUSON BROS INC | | | SCAC4 |
| 5697 | FRGT | FRIGID TRANSPORT SYSTEM | | | SCAC3 |
| 5698 | FRGV | FREIGHT TRANSPORT SERVICE | | | SCAC3 |
| 5699 | FRGV | FAR-GO TRANSPORTATION INC | | | SCAC4 |
| 5700 | FRGW | FLINT RIDGE LLC | | | SCAC4 |
