| 3801 | FLNX | OHIO RAILWAY SUPPLY | | | SCAC4 |
| 3802 | FLNX | R.P. Flynn, Inc., d/b/a Ohio Railway Supply | | USA | TRAFFIC |
| 3803 | FLO | Flyeco | Callsign: French Eco, | F | AVCODES |
| 3804 | FLO | Flycom | | SLO | AVCODES |
| 3805 | FLO | Flycom | | | ICAO1 |
| 3806 | FLO | Florin AG | | CH | VKM |
| 3807 | FLOA | FLORA SERVICE, INC | | | SCAC3 |
| 3808 | FLOA | FLORA EXPRESS INC, THE | | | SCAC4 |
| 3809 | FLOBA | Florianer Bahn Forschungs- und Errichtungsgesellschaft mbH | | AT | VKM |
| 3810 | FLOC | FALCON LOGISTICS INC | | | SCAC4 |
| 3811 | FLOD | FLOWERLINK | | | SCAC4 |
| 3812 | FLOE | FLORIDA EAST COAST HIGHWAY DISPATCH | | | SCAC3 |
| 3813 | FLOG | FLOUIE LOGISTICS | | | SCAC4 |
| 3814 | FLOH | FRESH LOGISTICS | | | SCAC4 |
| 3815 | FLOI | FLOIT SAND AND GRAVEL COMPANY | | | SCAC3 |
| 3816 | FLOI | F L O TRANSPORT INC | | | SCAC4 |
| 3817 | FLOJ | FREIGHTCO LOGISTICS | | | SCAC4 |
| 3818 | FLOK | FLOURNOY TRUCKING | | | SCAC3 |
| 3819 | FLOL | FLO FORM INDUSTRIES LTD | | | SCAC4 |
| 3820 | FLOM | FLOOR MASTER INC | | | SCAC3 |
| 3821 | FLOM | FLORES MARROQUIN, DANIEL | | | SCAC4 |
| 3822 | FLON | FALCON TRANSPORT INC | | | SCAC3 |
| 3823 | FLON | FLO'S TRUCKING LLC | | | SCAC4 |
| 3824 | FLOO | FAST LOAD TRANSPORT INC | | | SCAC4 |
| 3825 | FLOQ | FANS LOGISTICS | | | SCAC4 |
| 3826 | FLOR | FLORIDA TILE TRANSPORTATION | | | SCAC3 |
| 3827 | FLOR | FLORILLI TRANSPORTATION LLC | | | SCAC4 |
| 3828 | FLOT | FLOUR TRANSPORT, INC | | | SCAC3 |
| 3829 | FLOT | FLORES TORRES, MARTIN | | | SCAC4 |
| 3830 | FLOU | FLOWBOX S.A | | RA | BIC |
| 3831 | FLOU | FLOMERCA LINES | | | SCAC3 |
| 3832 | FLOU | FLOWBOX S A | | | SCAC4 |
| 3833 | FLOV | FLORA SERVICES LTD. | | | SCAC3 |
| 3834 | FLOW | FLOWERS TRUCKING | | | SCAC3 |
| 3835 | FLOX | The CIT Group/Capital Finance, Inc. | added 4/2005; 7/2005 | | NAKINA |
| 3836 | FLOX | Flex Leasing Corp. | added 7/1997; 7/2000; eliminated 4/2005 | | NAKINA |
| 3837 | FLOX | Float-Away Door Co. | 4/1970 | | NAKINA |
| 3838 | FLOX | Float-Away Door Co. | Apr-70 | | NRHS |
| 3839 | FLOX | Flex Leasing Corp. | added 7/97; 7/2000 | | NRHS |
| 3840 | FLOX | *FLOAT-AWAY DOOR CO. | | | PWRC |
| 3841 | FLOX | +THE CIT GROUP/CAPITAL FINANCE, INC. [FLEX LEASING CORPORATION] | | | PWRC |
| 3842 | FLOX | Flex Leasing | | | RSRV |
| 3843 | FLOX | CIT GROUP/CAPITAL FINANCE INC, THE | | | SCAC4 |
| 3844 | FLOY | FLOYDS TRUCKING INC | | | SCAC3 |
| 3845 | FLOY | FLOYD TRUCKING INC | | | SCAC4 |
| 3846 | FLOYD | Floyd Kft. | | H | TRAFFIC |
| 3847 | FLOYD | FLOYD ZRt. | | HU | VKM |
| 3848 | FLP | Aeroclub Flaps | Callsign: Aeroclub Flaps, | E | AVCODES |
| 3849 | FLP | FL140 Parachutisme Bordeaux | Callsign: Parapro, | F | AVCODES |
| 3850 | FLP | | | | ICAO1 |
| 3851 | FLP | Ferrovia Lugano-Ponte Tresa | | CH | TRAFFIC |
| 3852 | FLP | Ferrovie Luganesi (Ferrovia Lugano - Ponte Tresa) | | CH | VKM |
| 3853 | FLPC | FILE SHIPPING CO LTD LONDON ENGLAND | | | SCAC3 |
| 3854 | FLPE | FLOTA PETROLERA ECUATORIANA | | | SCAC3 |
| 3855 | FLPE | FLOTA PETROLERA ECUATORIANA | | | SCAC4 |
| 3856 | FLPG | FORTNER L P GAS CO INC | | | SCAC4 |
| 3857 | FLPI | FLIPPEN, E D TRUCKING | | | SCAC3 |
| 3858 | FLPK | FLORA PACK INC | | | SCAC4 |
| 3859 | FLPO | FALCONER GLASS CORP | | | SCAC3 |
| 3860 | FLPP | FLIPPENCE TRUCKING INC | | | SCAC4 |
| 3861 | FLPQ | FINE LINE PACIFIC LLC | | | SCAC4 |
| 3862 | FLPS | FERELPIS SHIPPING LIMITED | | | SCAC3 |
| 3863 | FLPS | FERELPIS SHIPPING LIMITED | | | SCAC4 |
| 3864 | FLPT | FLIPPO TRANSPORT SERVICES INC | | | SCAC3 |
| 3865 | FLPU | FLUMAR PARAGUAY, S.A. | | | SCAC3 |
| 3866 | FLPX | Fidelity Petroleum Co. | 8/1920 | | NAKINA |
| 3867 | FLPX | FIDELITY PETROLEUM CO. | | | PWRC |
| 3868 | FLPZ | FRUITLAND LOUISIANA POWER PLANT | | | PWRC |
| 3869 | FLQG | FAST LOGISTICS INC | | | SCAC4 |
| 3870 | FLQL | FLAMINGO LINES | | | SCAC3 |
| 3871 | FLQL | FLAMINGO LINE | | | SCAC4 |
| 3872 | FLQN | FRONTIER LOGISTICS SERVICES II INC | | | SCAC4 |
| 3873 | FLQR | FLORES INTER | | | SCAC4 |
| 3874 | FLQT | FLE TRANSPORT LTD | | | SCAC4 |
| 3875 | FLR | Fleetair | Callsign: Fleetair, | ZA | AVCODES |
| 3876 | FLR | FR Aviation Ltd. | Callsign: Rushton, ICAO designator changed to FRA. Name changed from Flight Refuelling Ltd. | GB | AVCODES |
| 3877 | FLR | Flight Refuelling Ltd. | Callsign: Rushton, Name changed to FR Aviation Ltd. | GB | AVCODES |
| 3878 | FLR | Fleetair | | | ICAO1 |
| 3879 | FLR | Fife Lake Ry. Ltd. | eliminated 10/2006 | | NAKINA |
| 3880 | FLR | FIFE LAKE RWY., LTD. | | | PWRC |
| 3881 | FLR | FIFE LAKE RAILWAY LTD | | | SCAC4 |
| 3882 | FLRA | FLORA TRUCKING INC | | | SCAC4 |
| 3883 | FLRC | FLORILLI CORPORATION, THE | | | SCAC3 |
| 3884 | FLRC | FLORILLI LOGISTICS LLC | | | SCAC4 |
| 3885 | FLRD | FLORIDA EXPRESS LTD | | | SCAC4 |
| 3886 | FLRE | FLORES TRUCKING | | | SCAC3 |
| 3887 | FLRE | FLETES EXPRESS | | | SCAC4 |
| 3888 | FLRF | FLEWELLING, R F LTD | | | SCAC4 |
| 3889 | FLRG | FLETES RGC S A DE C V | | | SCAC4 |
| 3890 | FLRI | FLAT RIVER FARMINGTON EXPRESS | | | SCAC3 |
| 3891 | FLRI | FLORIMEX VANCOUVER INC | | | SCAC4 |
| 3892 | FLRN | FLORIDA TRANSFER & STORAGE | | | SCAC4 |
| 3893 | FLRO | FLYING KANGAROO DELIVERY INC | | | SCAC3 |
| 3894 | FLRO | FLORES, ROBERTO | | | SCAC4 |
| 3895 | FLRQ | FLORES TRUCKING | | | SCAC4 |
| 3896 | FLRR | FALL RIVER EXPRESS LLC | | | SCAC4 |
| 3897 | FLRT | FLORIDA ROCK & TANK LINES INC | | | SCAC3 |
| 3898 | FLRU | FINNLINES PLC | | FIN | BIC |
| 3899 | FLRU | OY FINNCARRIERS AB | | | SCAC3 |
| 3900 | FLRU | FINNLINES PLC | | | SCAC4 |
