| 1 | FMR | Flamingo Air, Inc. | Callsign: Flamingo Air, | USA | AVCODES |
| 2 | FMR | Flamingo Air | | | ICAO1 |
| 3 | FMR | Fragonset Merlin Railway | Real: FM, Fragonset Merlin Rail or FM Rail is a railway spot-hire and charter company based at Derby, United Kingdom. The company was formed in January 2005 following the merging of charter company Merlin Rail with spot-hire company Fragonset Railways. FM Rail lauched its new livery in September 2005. | GB | TRAFFIC |
| 4 | FMR | FuoriMuro Servizi Portuali e Ferroviari S.r.l. | | IT | VKM |
| 5 | FMRC | Farmrail Corp. | added 4/1982; 1/1994; eliminated 7/1994; eliminated 10/1995; 7/2000-7/2005 | | NAKINA |
| 6 | FMRC | Farmrail Corp. | added 4/82; 1/94; eliminated 7/94; eliminated 10/95; 7/2000 | | NRHS |
| 7 | FMRC | FARMRAIL CORPORATION | | | PWRC |
| 8 | FMRC | Farmrail Corporation | | | RSRV |
| 9 | FMRC | FARMRAIL CORPORATION | | | SCAC3 |
| 10 | FMRC | Farmrail Corporation | | USA | TRAFFIC |
| 11 | FMRE | FRAME'S MOTOR FREIGHT, INC | | | SCAC3 |
| 12 | FMRF | FREMONT REFRIGERATED EXPRESS INC | | | SCAC3 |
| 13 | FMRG | F M TRUCKING | | | SCAC3 |
| 14 | FMRH | FARM & RANCH EXCHANGE TRUCKING | | | SCAC3 |
| 15 | FMRI | FARMERS INCORPORATED | | | SCAC4 |
| 16 | FMRK | FLOM, R & K T | | | SCAC4 |
| 17 | FMRN | FREIGHT MASTERS INC | | | SCAC4 |
| 18 | FMRO | FARMER ORCHARD CO | | | SCAC3 |
| 19 | FMRO | FARMERS OIL COMPANY INC | | | SCAC4 |
| 20 | FMRP | FELD MOTOR SPORTS INC | | | SCAC4 |
| 21 | FMRQ | FLOOD MORSS | | | SCAC3 |
| 22 | FMRQ | FIVE MILE RANCH INC | | | SCAC4 |
| 23 | FMRS | FIRST MESSENGER SERVICE | | | SCAC3 |
| 24 | FMRU | FYFFES INTERNATIONAL | | IRL | BIC |
| 25 | FMRX | Farmers Mutual Cooperative Creamery | 7/1932-7/1935 | | NAKINA |
| 26 | FMRX | FARMERS MUTUAL COOPERATIVE CREAMERY | | | PWRC |
