| 1 | FRO | Frobisher, N.V, (European Airlines) | Callsign: Frobisher, Ceased operations | B | AVCODES |
| 2 | FROB | FURNITURE ROW EXPRESS LLC (BROKERAG | | | SCAC4 |
| 3 | FROC | FRUGE OIL CO | | | SCAC3 |
| 4 | FROE | FROEHLICH TRUCKING | | | SCAC4 |
| 5 | FROF | FROSTI FISHING LTD | | | SCAC4 |
| 6 | FROG | FROGS WHOLESALE FUELS LLC | | | SCAC4 |
| 7 | FROI | FREIGHT OPERATIONS INC | | | SCAC3 |
| 8 | FROI | FREIGHT OPERATIONS INC | | | SCAC4 |
| 9 | FROK | FRONK OIL COMPANY INC | | | SCAC4 |
| 10 | FROL | FROESEL OIL COMPANY | | | SCAC3 |
| 11 | FROL | FROLAND TRANSPORTATION INC | | | SCAC4 |
| 12 | FROO | FROOM TRUCKING | | | SCAC3 |
| 13 | FROO | FROOM TRUCKING | | | SCAC4 |
| 14 | FROR | FROHNING, RAYMOND BULLDOZING | | | SCAC3 |
| 15 | FROS | FROST OIL COMPANY | | | SCAC4 |
| 16 | FROV | FNF ROLL OFF SERVICE | | | SCAC4 |
| 17 | FROW | FURNITURE ROW EXPRESS LLC | | | SCAC4 |
| 18 | FROZ | FRANKLIN COAL | | | PWRC |
