| 1 | FTL | Flightline, S.L. | Callsign: Flight-avia, | E | AVCODES |
| 2 | FTL | Flying Tiger Line, Inc., The | IATA: FT, Callsign: Tiger, Merged into Federal Express | USA | AVCODES |
| 3 | FTLC | Findlay Truck Line Company | | | SCAC2 |
| 4 | FTLC | FINDLAY TRUCK LINE, INC | | | SCAC3 |
| 5 | FTLC | FINDLAY TRUCK LINE INC | | | SCAC4 |
| 6 | FTLD | FLASH TRUCK LINES CORPORATION | | | SCAC4 |
| 7 | FTLE | FABION TRUCK LINES INC | | | SCAC3 |
| 8 | FTLF | FTL-FAST TRANSIT LINE | | | SCAC4 |
| 9 | FTLG | FRONTIER LOGISTICS LP | | | SCAC4 |
| 10 | FTLH | FRANZEN TRUCKING LLC | | | SCAC4 |
| 11 | FTLI | FREDERICKSEN TANK LINES INC | | | SCAC3 |
| 12 | FTLJ | FAST TRANSIT LINE | | | SCAC3 |
| 13 | FTLM | FISHER TRUCKING & LUMBER CO | | | SCAC3 |
| 14 | FTLO | FREIGHT LOGISTICS LLC | | | SCAC4 |
| 15 | FTLP | FTL COMPANY INC | | | SCAC3 |
| 16 | FTLP | FLETERA DEL PACIFICO | | | SCAC4 |
| 17 | FTLQ | FORT WAYNE LEASING CO INC | | | SCAC3 |
| 18 | FTLQ | FLATLAND TRUCKING INC | | | SCAC4 |
| 19 | FTLR | FT LAUDERDALE EXPRESS | | | SCAC4 |
| 20 | FTLT | FRATELLA TRUCKING | | | SCAC3 |
| 21 | FTLU | FRONTIER LOGISTICS LP | | USA | BIC |
| 22 | FTLU | Frontier Logistics | | | RSRV |
| 23 | FTLU | FRONTIER LOGISTICS LP | | | SCAC4 |
| 24 | FTLV | FLAGSHIP TRANSPORTATION LLC | | | SCAC4 |
| 25 | FTLW | FOX TRANSPORT LTD | | | SCAC4 |
| 26 | FTLX | Fast Track Leasing, LLC | added 7/2007 | | NAKINA |
| 27 | FTLX | R.J. Roesing and Co. | added 4/1954; 7/1954; eliminated 1/1955 | | NAKINA |
| 28 | FTLX | Fagan Tank Line | 1/1943-1/1952; eliminated 4/1954 | | NAKINA |
| 29 | FTLX | Franklin Tank Line (American Cynamid and Chemical Corp.) | 7/1935 | | NAKINA |
| 30 | FTLX | Franklin Tank Line | 8/1920-7/1932 | | NAKINA |
| 31 | FTLX | Fagan Tank Line | 1/52; eliminated 4/54 | | NRHS |
| 32 | FTLX | R.J. Roesing and Co. | added 4/54 | | NRHS |
| 33 | FTLX | *FRANKLIN TANK LINE | | | PWRC |
| 34 | FTLX | *R.J. ROESING & CO. [FAGAN TANK LINE] | | | PWRC |
| 35 | FTLX | +FAST TRACK LEASING, LLC | | | PWRC |
| 36 | FTLX | FAST TRACK LEASING LLC | | | SCAC4 |
