| 1 | TPR | Tapoavia | Callsign: Tapoavia, | UZ | AVCODES |
| 2 | TPR | Avion Taxis Pyreneens Sàrl | Callsign: Pyreneen, | F | AVCODES |
| 3 | TPR | Taxis Aereos De Parral | | | ICAO1 |
| 4 | TPRC | TRANSPORTES CENTENO INC | | | SCAC4 |
| 5 | TPRD | TRANS PIRAMIDE S A DE C V | | | SCAC4 |
| 6 | TPRF | TRANSPORTES R R | | | SCAC4 |
| 7 | TPRI | TRANSPORT PEREZ INC | | | SCAC4 |
| 8 | TPRJ | TRANS-PRO INC | | | SCAC4 |
| 9 | TPRL | TRANSPORTES ROBLES LOZOYA | | | SCAC4 |
| 10 | TPRL | Transports publics de la région lausannoise | Real: tl, City: Lausanne | CH | TRAFFIC |
| 11 | TPRP | TRANSPORTS R P R INC | | | SCAC4 |
| 12 | TPRQ | TRANSPORT P A D INC | | | SCAC4 |
| 13 | TPRR | TRIPLE R TRUCKING INC | | | SCAC4 |
| 14 | TPRS | TRANSPORTATION RESOURCES | | | SCAC4 |
| 15 | TPRT | TRIPLE TREE TRANSPORT LTD | | | SCAC4 |
| 16 | TPRX | Texas Power & Light Co. | 1/1950-10/1957; eliminated 1/1958; added 7/1980; eliminated 10/1985; 1/1994 (not listed) | | NAKINA |
| 17 | TPRX | Texas Power & Light Co. | 1/52-10/57; eliminated 1/58; added 7/80; 1/94 | | NRHS |
| 18 | TPRX | TEXAS POWER & LIGHT COMPANY | | | PWRC |
| 19 | TPRX | Texas Power and Light | | | RSRV |
| 20 | TPRY | TRANSPORTES REYNA | | | SCAC4 |
