| 1 | TOF | Topcliffe FTU | Callsign: Topcliffe, | GB | AVCODES |
| 2 | TOF | RAF Topcliffe Flying Training Unit | | | ICAO1 |
| 3 | TOFB | TWO ONE FIVE TWO SEVEN TWO SEVEN (2 | | | SCAC4 |
| 4 | TOFC | (TOFZ) TOFC INC DIVN OF FRUEHAUF | | | PWRC |
| 5 | TOFC | TMO GLOBAL LOGISTICS LLC | | | SCAC4 |
| 6 | TOFD | TWO ONE FOUR SEVEN THREE THREE FIVE | | | SCAC4 |
| 7 | TOFG | TALENT TRANSPORT INC | | | SCAC4 |
| 8 | TOFJ | TEN (10) G C LLC | | | SCAC4 |
| 9 | TOFK | TRANSIT ONE FOUR (14) INC | | | SCAC4 |
| 10 | TOFO | TROIANO FUEL OIL CO INC | | | SCAC4 |
| 11 | TOFP | TRACTO REFRIGERADOS LOPEZ SA DE CV | | | SCAC4 |
| 12 | TOFU | (TOFZ) TOFC INC DIVN OF FRUEHAUF | | | PWRC |
| 13 | TOFU | TOFC Division of Fruehauf | | | RSRV |
| 14 | TOFU | TOFC INC | | | SCAC4 |
| 15 | TOFX | TTX COMPANY | | | SCAC4 |
| 16 | TOFY | TWO ONE FIVE SEVEN ZERO NINE FIVE ( | | | SCAC4 |
| 17 | TOFZ | (TOFZ) TOFC INC DIVN OF FRUEHAUF | | | PWRC |
| 18 | TOFZ | TOFC Division of Fruehauf | | | RSRV |
| 19 | TOFZ | TOFC INC DIVN OF FRUEHAUF | | | SCAC4 |
