| 7801 | TPPN | TRANSPORTES PASO DEL NORTE | | | SCAC4 |
| 7802 | TPPO | TRANSPORT PRO-CAL INC | | | SCAC4 |
| 7803 | TPPP | TUPPER, RICHARD CHARLES | | | SCAC4 |
| 7804 | TPPT | TRIPP TRUCKING CO INC | | | SCAC4 |
| 7805 | TPPU | PARUS LLC | | RUS | BIC |
| 7806 | TPPU | REDERI AB TRANSATLANTIC | | | SCAC4 |
| 7807 | TPPW | THREE PL (3PL) CUSTOMS TRANSPORT SA | | | SCAC4 |
| 7808 | TPPX | Thilmany Pulp & Paper Co. | added 7/1974; 1/1975-1/1980; eliminated 4/1986 | | NAKINA |
| 7809 | TPPX | Thilmany Pulp & Paper Co. (captive service) | 1/1994 (not listed) | | NAKINA |
| 7810 | TPPX | Thilmany Pulp & Paper Co. | added 7/74; 1/75-1/80; eliminated 4/86 | | NRHS |
| 7811 | TPPX | Thilmany Pulp & Paper Co. (captive service) | Jan-94 | | NRHS |
| 7812 | TPPX | THILMANY LLC (THILMANY PULP & PAPER CO.) | | | PWRC |
| 7813 | TPPX | Thilmany Pulp and Paper | | | RSRV |
| 7814 | TPPX | THILMANY LLC | | | SCAC4 |
| 7815 | TPQ | Gouvernement Du Quebec, Service Aerien Gouvernemental | Callsign: Transport Quebec, ICAO designator changed to QUE | CDN | AVCODES |
| 7816 | TPQA | TRANSPOSATO INC | | | SCAC4 |
| 7817 | TPQB | TRIPP DISTRIBUTING INC | | | SCAC4 |
| 7818 | TPQC | TINO PRODUCE | | | SCAC4 |
| 7819 | TPQD | TRANSPOLIQUIDOS IMMEDIATOS SA DE CV | | | SCAC4 |
| 7820 | TPQH | TRUE POINT LOGISTICS LLC | | | SCAC4 |
| 7821 | TPQL | TRANSPLACE TEXAS LP | | | SCAC4 |
| 7822 | TPQM | TP OF MACON INC | | | SCAC4 |
| 7823 | TPQN | TRANSPORTES QUINTANILLA S A DE C V | | | SCAC4 |
| 7824 | TPQO | TOP CONNECTION CO | | | SCAC4 |
| 7825 | TPQW | TRANSPORT PIRATES INC | | | SCAC4 |
| 7826 | TPQY | TRANSPRO LOGISTICS NC INC | | | SCAC4 |
| 7827 | TPR | Tapoavia | Callsign: Tapoavia, | UZ | AVCODES |
| 7828 | TPR | Avion Taxis Pyreneens Sàrl | Callsign: Pyreneen, | F | AVCODES |
| 7829 | TPR | Taxis Aereos De Parral | | | ICAO1 |
| 7830 | TPRC | TRANSPORTES CENTENO INC | | | SCAC4 |
| 7831 | TPRD | TRANS PIRAMIDE S A DE C V | | | SCAC4 |
| 7832 | TPRF | TRANSPORTES R R | | | SCAC4 |
| 7833 | TPRI | TRANSPORT PEREZ INC | | | SCAC4 |
| 7834 | TPRJ | TRANS-PRO INC | | | SCAC4 |
| 7835 | TPRL | TRANSPORTES ROBLES LOZOYA | | | SCAC4 |
| 7836 | TPRL | Transports publics de la région lausannoise | Real: tl, City: Lausanne | CH | TRAFFIC |
| 7837 | TPRP | TRANSPORTS R P R INC | | | SCAC4 |
| 7838 | TPRQ | TRANSPORT P A D INC | | | SCAC4 |
| 7839 | TPRR | TRIPLE R TRUCKING INC | | | SCAC4 |
| 7840 | TPRS | TRANSPORTATION RESOURCES | | | SCAC4 |
| 7841 | TPRT | TRIPLE TREE TRANSPORT LTD | | | SCAC4 |
| 7842 | TPRX | Texas Power & Light Co. | 1/1950-10/1957; eliminated 1/1958; added 7/1980; eliminated 10/1985; 1/1994 (not listed) | | NAKINA |
| 7843 | TPRX | Texas Power & Light Co. | 1/52-10/57; eliminated 1/58; added 7/80; 1/94 | | NRHS |
| 7844 | TPRX | TEXAS POWER & LIGHT COMPANY | | | PWRC |
| 7845 | TPRX | Texas Power and Light | | | RSRV |
| 7846 | TPRY | TRANSPORTES REYNA | | | SCAC4 |
| 7847 | TPS | Transportes Aereos Petroleros S.A. / TAPSA | IATA: V8, Callsign: Tapsa, Name changed from Tapsa Aviacion | RA | AVCODES |
| 7848 | TPS | Tapsa Aviacion | IATA: V8, Callsign: Tapsa, Name changed to Transportes Aereos Petroleros S.A. / TAPSA | RA | AVCODES |
| 7849 | TPS | Empire Test Pilots School | Callsign: Tester, ICAO designator changed to ETP | GB | AVCODES |
| 7850 | TPS | Transportes Aereos Petroleros S.A. / TAPSA | Callsign: Tapsa, Name changed from Tapsa Aviacion. IATA designator V8* recalled. | RA | AVCODES |
| 7851 | TPS | TAPSA Transportes Aereos Petroleros | | | ICAO1 |
| 7852 | TPSA | TRANSPAC SERVICES INC | | | SCAC4 |
| 7853 | TPSB | TRANSPORT SERGE BEAUREGARD INC | | | SCAC4 |
| 7854 | TPSD | TRANSPORTES PEREA S A DE C V | | | SCAC4 |
| 7855 | TPSE | TRANSPORTES FAGASA EXPRESS | | | SCAC4 |
| 7856 | TPSG | TRANSPORT SAGUELAC INC | | | SCAC4 |
| 7857 | TPSH | TRANSPORT S DESCHAMPS INC | | | SCAC4 |
| 7858 | TPSI | TRANSPORTATION SALES AND SERVICE IN | | | SCAC4 |
| 7859 | TPSK | TRANSPORTES A & A | | | SCAC4 |
| 7860 | TPSM | TRANSPORT SERVICES LLC | | | SCAC4 |
| 7861 | TPSN | THOMPSON MOVING & STORAGE INC | | | SCAC4 |
| 7862 | TPSQ | TRANSPORE SOQUI | | | SCAC4 |
| 7863 | TPSR | TRANSPORTES SANTA ROSA S A DE C | | | SCAC4 |
| 7864 | TPST | TRANSPORTADORA PORTER SA DE CV | | | SCAC4 |
| 7865 | TPSU | BASF TAIWAN LIMITED | | RC | BIC |
| 7866 | TPSU | MERCK-KANTO ADVANCED CHEMICALS LTD | | | SCAC4 |
| 7867 | TPSV | TRANSPORTES SERVIN | | | SCAC4 |
| 7868 | TPSW | TOPPS, B TOWING | | | SCAC4 |
| 7869 | TPSX | TPS Leasing Co., LLC | 7/2000-7/2005 (not listed) | | NAKINA |
| 7870 | TPSX | TPS Leasing Co., LLC | Jul-00 | | NRHS |
| 7871 | TPSX | TPS LEASING COMPANY LLC | | | PWRC |
| 7872 | TPSX | TPS Leasing | | | RSRV |
| 7873 | TPT | Transportes Transpenta Ltda. | Callsign: Transpenta, | RCH | AVCODES |
| 7874 | TPT | Transportes Aereo del Sureste | | | ICAO1 |
| 7875 | TPT | Trenton-Princeton Traction Co. | 1/1975 | | NAKINA |
| 7876 | TPT | Consolidated Rail Corp. | 1/1980 | | NAKINA |
| 7877 | TPT | Trenton-Princeton Traction Co. | Jan-75 | | NRHS |
| 7878 | TPT | Consolidated Rail Corp. | Jan-80 | | NRHS |
| 7879 | TPT | *TRENTON-PRINCETON TRACTION CO. | | | PWRC |
| 7880 | TPT | *CONSOLIDATED RAIL CORP. | | | PWRC |
| 7881 | TPT | Conrail | | | RSRV |
| 7882 | TPTA | TRIPLE T TRANSPORT INC | | | SCAC4 |
| 7883 | TPTC | TRANSPORTES EXPRESSO | | | SCAC4 |
| 7884 | TPTD | TURNING POINT TRANSPORTATION SOLUTI | | | SCAC4 |
| 7885 | TPTF | TRANSPORT TFI 16 S E C | | | SCAC4 |
| 7886 | TPTG | TRANSPORTES GARZA | | | SCAC4 |
| 7887 | TPTH | TWIN POWER TRANSPORT | | | SCAC4 |
| 7888 | TPTI | TRIANGLE PETROLEUM TRANSPORT INC | | | SCAC4 |
| 7889 | TPTK | TAMPA TANK LINES | | | SCAC4 |
| 7890 | TPTO | T P T SYSTEMS INC | | | SCAC4 |
| 7891 | TPTP | TAPIA, J TRASNPORT | | | SCAC4 |
| 7892 | TPTS | TRANSPORTES USA-MEX | | | SCAC4 |
| 7893 | TPTT | TRIPAR TRANSPORTATION INC | | | SCAC1 |
| 7894 | TPTT | TRIPAR TRANSPORTATION GP INC | | | SCAC4 |
| 7895 | TPTU | EXSIF WORLDWIDE | | USA | BIC |
| 7896 | TPTU | Exsif Worldwide | | | RSRV |
| 7897 | TPTU | EXSIF WORLDWIDE | | | SCAC4 |
| 7898 | TPTV | TRUPOINTE TRANSPORTATION INC | | | SCAC4 |
| 7899 | TPTX | Trailer Train Co. | added 10/1980; eliminated 4/1981 | | NAKINA |
| 7900 | TPTX | Trailer Train Co. | 1/1994-7/2005 (not listed) | | NAKINA |
