| 10401 | TULY | TURTLE MARITIME SA | | | SCAC4 |
| 10402 | TUM | Aeriantur-M Airlines | Callsign: Air-Em, | MD | AVCODES |
| 10403 | TUM | Tyumenspecavia | Callsign: Tumtel, | RUS | AVCODES |
| 10404 | TUM | Utair Closed JSC | Callsign: Utair-Cargo, | RUS | AVCODES |
| 10405 | TUM | Tyumenspecavia | | | ICAO1 |
| 10406 | TUMEN | PATP1 Tumen | City: Tumen | RUS | TRAFFIC |
| 10407 | TUMF | TUMID FREIGHT INC | | | SCAC4 |
| 10408 | TUMH | TRIUMPH TRANSPORT | | | SCAC4 |
| 10409 | TUML | TUM LOGISTICS INC | | | SCAC4 |
| 10410 | TUMM | TUMMON, D L TRANSPORT | | | SCAC4 |
| 10411 | TUMP | TURNMIRE TRANSPORTATION INC | | | SCAC4 |
| 10412 | TUMT | TUM TRANSPORTISTAS UNIDOS S A DE C | | | SCAC4 |
| 10413 | TUMU | {OJSC "TRANSPORT LOGISTICS CENTER TURKMENISTAN"};ZIPCODE=744000 | | TM | BIC |
| 10414 | TUMW | TUMBLEWEED EXPRESS INC | | | SCAC4 |
| 10415 | TUN | Tunisian Air Force | Callsign: Tunisian Airforce, | TN | AVCODES |
| 10416 | TUN | Air Tungaru | IATA: RT, Callsign: Tungaru, Desigantor RT recalled by IATA | KIR | AVCODES |
| 10417 | TUN | Air Tungaru | | | ICAO1 |
| 10418 | TUNC | TRANSPORTES UNIDOS CASTANEDA SA DE | | | SCAC4 |
| 10419 | TUNF | TRIUNFO IMPORT & EXPORT FOOD CORP | | | SCAC4 |
| 10420 | TUNG | TUNG AIR TRANSPORT LTD | | | SCAC4 |
| 10421 | TUNI | TRANSPORT UNLIMITED INC | | | SCAC4 |
| 10422 | TUNL | TRANSPORTATION UNLIMITED INC | | | SCAC4 |
| 10423 | TUNO | TRANSPORTES MUNOZ | | | SCAC4 |
| 10424 | TUNQ | TRANSPORTEURS-UNIS | | | SCAC4 |
| 10425 | TUNW | TURN-R ROUND TRANSPORT CO | | | SCAC4 |
| 10426 | TUNY | TRANSPORTES TUNDY | | | SCAC4 |
| 10427 | TUO | Taxi Aereo Turistico, S.A. de C.V. | Callsign: Turistico, | MEX | AVCODES |
| 10428 | TUO | Taxi Aereo Turistico | | | ICAO1 |
| 10429 | TUP | Aviastar-Tu Co. Ltd | IATA: 4B, Callsign: Tupolevair, IATA Prefix: 210, | RUS | AVCODES |
| 10430 | TUP | Aviastar-Tu | | | ICAO1 |
| 10431 | TUPA | TRANSPLUS INC | | | SCAC4 |
| 10432 | TUPI | TURNPIKE TRANSIT, INC | | | SCAC1 |
| 10433 | TUPI | TURNPIKE TRANSIT INC | | | SCAC4 |
| 10434 | TUPL | TUPELO TRANSFER INC | | | SCAC4 |
| 10435 | TUPM | TRU-PAK MOVING SYSTEMS INC | | | SCAC4 |
| 10436 | TUPX | Tulsa Petroleum Co. | 1/1945-1/1946 | | NAKINA |
| 10437 | TUPX | Texas Ultra Pure, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 10438 | TUPX | Texas Ultra Pure, Inc. | Jul-00 | | NRHS |
| 10439 | TUPX | *TULSA PETROLEUM CO. | | | PWRC |
| 10440 | TUPX | +TEXAS ULTRA PURE, INC. | | | PWRC |
| 10441 | TUPX | Texas Ultra Pure | | | RSRV |
| 10442 | TUPX | TEXAS ULTRA PURE INC | | | SCAC4 |
| 10443 | TUQ | Air Turquoise | Callsign: Air Turquoise, | F | AVCODES |
| 10444 | TUR | Atur | | EC | AVCODES |
| 10445 | TUR | TUR European Airways (Tur Avrupa Hava Yollair AS) | IATA: YI, Founded in 1988. Ceased operations in 1994. | TR | AVCODES |
| 10446 | TUR | Aerotur, S.A. | Callsign: Aerotur, | MEX | AVCODES |
| 10447 | TUR | Aeroturpial, C.A. | Callsign: Veturpi, | YV | AVCODES |
| 10448 | TUR | ATUR | | | ICAO1 |
| 10449 | TURA | TURNER, LORNE A | | | SCAC1 |
| 10450 | TURB | TURBO EXPRESS 22 S DE R L DE C V | | | SCAC4 |
| 10451 | TURC | TURBOTEC | | | SCAC4 |
| 10452 | TURD | TURBO CANADA | | | SCAC4 |
| 10453 | TUREK | PKS Turek | | PL | TRAFFIC |
| 10454 | TURG | TURNER, GUY M INC | | | SCAC4 |
| 10455 | TURK | TURICK, DENNIS S FUELS | | | SCAC4 |
| 10456 | TURL | TURRI LOGISTICS CO | | | SCAC4 |
| 10457 | TURN | TURNAROUND TRANSPORT INC | | | SCAC4 |
| 10458 | TURO | TURRI TRANSPORTATION CO | | | SCAC4 |
| 10459 | TURQ | TURQUOISE SHIPPING LIMITED | | | SCAC4 |
| 10460 | TURS | TRACUSA LA RUTA DEL SOL SA DE CV | | | SCAC4 |
| 10461 | TURU | ACT INTERNATIONAL | | B | BIC |
| 10462 | TURW | TRI-TURN EXPRESS | | | SCAC4 |
| 10463 | TURZ | TURNER COLA CO. | | | PWRC |
| 10464 | TUS | Trustco Group International (Pty) Ltd | Callsign: Trustco, | NAM | AVCODES |
| 10465 | TUS | ABSA - Aerolinhas Brasileiras | IATA: M3 | | ICAO1 |
| 10466 | TUS | Transportes Urbanos Santander | City: Santander | E | TRAFFIC |
| 10467 | TUSA | TRANSCONTAINER (USA) INC | | | SCAC4 |
| 10468 | TUSC | TUSCAN GARDEN WORKS | | | SCAC4 |
| 10469 | TUSI | TUSKA INC | | | SCAC4 |
| 10470 | TUSK | TUSKER FREIGHTLINE INC | | | SCAC4 |
| 10471 | TUSL | TRUSEAL TECHNOLOGIES | | | SCAC4 |
| 10472 | TUSM | TRY-US TRUCKING | | | SCAC1 |
| 10473 | TUSQ | TRANS-US | | | SCAC4 |
| 10474 | TUSS | TUSSEY TRUCKING INC | | | SCAC4 |
| 10475 | TUSSAM | Transportes Urbanos de Sevilla, Sociedad Anónima Municipal | City: Sevilla | E | TRAFFIC |
| 10476 | TUST | Texarkana Union Station Trust | 1/1975-7/2005 | | NAKINA |
| 10477 | TUST | Texarkana Union Station Trust | 1/75-7/2000 | | NRHS |
| 10478 | TUST | TEXARKANA UNION STATION TRUST | | | PWRC |
| 10479 | TUST | Texarkana Union Station Trust | | | RSRV |
| 10480 | TUST | TEXARKANA UNION STATION TRUST | | | SCAC4 |
| 10481 | TUSY | TUSCOR LLOYDS UK LTD | | | SCAC4 |
| 10482 | TUTB | TURNER, MARY B TRUCKING COMPANY LLC | | | SCAC4 |
| 10483 | TUTC | TURNER TOURS LLC | | | SCAC4 |
| 10484 | TUTE | TULIP TREE COLLECTION | | | SCAC4 |
| 10485 | TUTG | TUTLE & TUTLE TRUCKING INC | | | SCAC4 |
| 10486 | TUTI | TRANS UNION TRANSPORT INC | | | SCAC4 |
| 10487 | TUTK | TUCKER TRUCKING COMPANY LLC | | | SCAC4 |
| 10488 | TUTL | TUTTLE, PERCY TRUCKING LTD | | | SCAC4 |
| 10489 | TUTN | TRI UNION TRUCKING INC | | | SCAC4 |
| 10490 | TUTQ | TRI US TRANSPORT INC | | | SCAC4 |
| 10491 | TUTT | TUTT, G TRANSPORT INC | | | SCAC4 |
| 10492 | TUTU | SHIPPING CONTAINER CONSULTANTS LTD | | GB | BIC |
| 10493 | TUTY | TUCSOK, TYRON | | | SCAC4 |
| 10494 | TUU | Compania Aerea de Servicios Tur Air | Callsign: Tur Service, | E | AVCODES |
| 10495 | TUUT | TRUCK HAUL TRANSPORT LTD | | | SCAC4 |
| 10496 | TUV | Turavia | Callsign: Turavia, Founded in 1992. Ceased operations. | PL | AVCODES |
| 10497 | TUVG | TRAGUSA EXPRESS SA DE CV | | | SCAC4 |
| 10498 | TUVT | TUALATIN VALLEY TRANSPORT, INC | | | SCAC1 |
| 10499 | TUX | Tulpar Air Service | IATA: 2T, Callsign: Tulpa, Designator 2T recalled by IATA | KZ | AVCODES |
| 10500 | TUX | Tulpar Avia Service | IATA: R4, | KZ | AVCODES |
