| 4701 | TI | Turners Island | | | RSRV |
| 4702 | TI | TURNERS ISLAND LLC | | | SCAC4 |
| 4703 | TI | Trenitalia S.p.A. | | IT | VKM |
| 4704 | TIA | Trans International Airlines | Callsign: Trans, | USA | AVCODES |
| 4705 | TIA | Trans International Airlines | | | ICAO1 |
| 4706 | TIAA | TRANSEXPERTS INC | | | SCAC4 |
| 4707 | TIAB | TRANSPOINT INC | | | SCAC4 |
| 4708 | TIAF | TIZNADO PALLETS & LUMBER | | | SCAC4 |
| 4709 | TIAI | TIME D C INC | | | SCAC4 |
| 4710 | TIAJ | TIA TRUCKING | | | SCAC4 |
| 4711 | TIAM | TRANSPORTES IZQUIERDO ALEMAN | | | SCAC4 |
| 4712 | TIANJ | Tianjin Metro | | PRC | TRAFFIC |
| 4713 | TIAR | TRI AIR TRANSPORTATION, INC | | | SCAC1 |
| 4714 | TIAR | TRI AIR TRANSPORTATION INC | | | SCAC4 |
| 4715 | TIAT | TITAN TRANSPORTATION | | | SCAC4 |
| 4716 | TIB | TRIP Linhas Aéreas | IATA: T4, Callsign: Trip, IATA designator changed to T4 | BR | AVCODES |
| 4717 | TIB | TRIP Linhas Aéreas | IATA: T4, Callsign: Trip, IATA Prefix: 661, Founded in 1998. Merged in Azul Brazilian Airlines on 06 May 2014. IATA designator changed from T4* | BR | AVCODES |
| 4718 | TIB | TRIP Linhas Aéreas | IATA: 8R | | ICAO1 |
| 4719 | TIB | Tåg i Bergslagen | | SE | VKM |
| 4720 | TIBD | TRANSVALUE INC | | | SCAC4 |
| 4721 | TIBE | TRANSGLAD INC | | | SCAC4 |
| 4722 | TIBG | TEAGUE INC | | | SCAC4 |
| 4723 | TIBM | TIBBAN MANUFACTURING | | | SCAC4 |
| 4724 | TIBP | TRAILCO TERMINAL SERVICES INC | | | SCAC4 |
| 4725 | TIBR | TimberRock R.R. Co., Inc. | 7/2000-7/2005; added 4/2008 | | NAKINA |
| 4726 | TIBR | TimberRock R.R. Co., Inc. | Jul-00 | | NRHS |
| 4727 | TIBR | TIMBER ROCK RAILROAD COMPANY | | | PWRC |
| 4728 | TIBR | TimberRock Railroad | | | RSRV |
| 4729 | TIBS | TIBBS TRANSPORT INC | | | SCAC4 |
| 4730 | TIBT | TIMBERFIELD TRANSPORT | | | SCAC4 |
| 4731 | TIBU | TACON GMBH TANK & CONTAINER SERVICES | | D | BIC |
| 4732 | TIC | Travel International Air Charters Ltd. | Callsign: Travel International, | Z | AVCODES |
| 4733 | TIC | Transportes Aereos Costarricenses | IATA: 5L, Callsign: Tac Airlines, | CR | AVCODES |
| 4734 | TIC | Travel International Air Charters | | | ICAO1 |
| 4735 | TICB | TAINO TRANSPORT INCORPORATED | | | SCAC4 |
| 4736 | TICC | TICL TRANSPORTE INTERNACIONAL DE CA | | | SCAC4 |
| 4737 | TICE | TICE & SONS TRANSPORT | | | SCAC4 |
| 4738 | TICE | Transport intercommunal de personnes dans le canton d'Esch-sur-Alzette | | L | TRAFFIC |
| 4739 | TICF | TRICOR CALIFORNIA, INC | | | SCAC1 |
| 4740 | TICH | TICSA | | | SCAC4 |
| 4741 | TICJ | TRANSPORTES INTERNACIONALES CRELJOR | | | SCAC4 |
| 4742 | TICK | TRICKSTERS TRUCKING INC | | | SCAC4 |
| 4743 | TICL | TRANSPORT INTERNATIONAL COMMODITIES | | | SCAC4 |
| 4744 | TICM | TRANSPORTES INTERNACIONALES CBL SA | | | SCAC4 |
| 4745 | TICO | TIMCO TRANSPORTATION | | | SCAC4 |
| 4746 | TICQ | TRANSMAC INC | | | SCAC4 |
| 4747 | TICR | TRANSVERSAL INTERNATIONAL CORPORATI | | | SCAC4 |
| 4748 | TICT | TRANS IOWA CHARTERS LLC | | | SCAC4 |
| 4749 | TICU | LIVERANI GROUP SPA | | I | BIC |
| 4750 | TICU | C T I CONSORZIO PER RASPORTI INTERM | | | SCAC4 |
| 4751 | TICW | TRANSINTERNATIONAL CARGO INC | | | SCAC4 |
| 4752 | TICX | National Car Co. | added 7/1961 | | NAKINA |
| 4753 | TICX | Fruit Growers Express | 7/1965 | | NAKINA |
| 4754 | TICX | Thermice Corp., Philadelphia, PA (National Car Co.) | 10/1966 | | NAKINA |
| 4755 | TICX | Fruit Growers Express Co. | 4/1970 | | NAKINA |
| 4756 | TICX | National Car Co. | eliminated 1/1972 | | NAKINA |
| 4757 | TICX | Fruit Growers Express Co. | added 1/1972; 1/1975; eliminated 1/1975 | | NAKINA |
| 4758 | TICX | Fruit Growers Express | Jul-65 | | NRHS |
| 4759 | TICX | Thermice Corp., Philadelphia, PA (National Car Co.) | Oct-66 | | NRHS |
| 4760 | TICX | Fruit Growers Express Co. | Apr-70 | | NRHS |
| 4761 | TICX | National Car Co. | eliminated 1/72 | | NRHS |
| 4762 | TICX | Fruit Growers Express Co. | added 1/72; 1/75; eliminated 1/75 | | NRHS |
| 4763 | TICX | FRUIT GROWERS EXPRESS 9NATIONAL CAR CO.) | | | PWRC |
| 4764 | TIDA | TIDAL TRANSPORTATION INC | | | SCAC4 |
| 4765 | TIDB | TIDBROS EXPRESS | | | SCAC4 |
| 4766 | TIDD | TRANSPORTES INTERNACIONALES DE COME | | | SCAC4 |
| 4767 | TIDF | TIO FAST FREIGHT | | | SCAC4 |
| 4768 | TIDG | THIRD COAST LOGISTICS LLC | | | SCAC4 |
| 4769 | TIDH | TRANS ISLAND MARITIME LTD | | | SCAC4 |
| 4770 | TIDI | TIDI DE MEXICO | | | SCAC4 |
| 4771 | TIDL | TIDE LINE INC | | | SCAC4 |
| 4772 | TIDN | TRANSPORTES INTEGRALES DEL NORTE | | | SCAC4 |
| 4773 | TIDP | TRANSPORTES INOVATIVOS DEL NORTE SA | | | SCAC4 |
| 4774 | TIDS | TRI-ISLAND DISTRIBUTORS INC | | | SCAC4 |
| 4775 | TIDU | TI2 LOGISTICS PTE LTD | | SGP | BIC |
| 4776 | TIDV | TRASMISA SA DE CV | | | SCAC4 |
| 4777 | TIDX | Tidal Gasoline Co. | 8/1920 | | NAKINA |
| 4778 | TIDX | Tidal Refining Co. | 7/1923-7/1932 | | NAKINA |
| 4779 | TIDX | Tide Water Oil Co. (of Oklahoma) | 7/1935 | | NAKINA |
| 4780 | TIDX | Tide Water Associated Oil Co. | 7/1937-7/1954; eliminated 10/1956 | | NAKINA |
| 4781 | TIDX | Tidewater Oil Co. | added 10/1956; 10/1957-10/1966; eliminated 10/1967 | | NAKINA |
| 4782 | TIDX | Getty Oil Co. | added 10/1967; 4/1970; eliminated 4/1972 | | NAKINA |
| 4783 | TIDX | Tidewater Oil Co. | 4/38-10/66; eliminated 10/67 | | NRHS |
| 4784 | TIDX | Getty Oil Co. | added 10/67; 4/70; eliminated 4/72 | | NRHS |
| 4785 | TIDX | GETTY OIL CO. [TIDEWATER OIL CO.; TIDE WATER ASSOCIATED OIL CO.; TIDAL REFINING CO.; TIDAL GASOLINE CO.] | | | PWRC |
| 4786 | TIE | Time Air, s.r.o. | Callsign: Time Air, | CZ | AVCODES |
| 4787 | TIE | Time Air | | | ICAO1 |
| 4788 | TIED | TILLEY ENDURABLES INC | | | SCAC4 |
| 4789 | TIEJ | TRANSPORTE INTERNACIONAL ERSEBA | | | SCAC4 |
| 4790 | TIEK | THREE (3) INDIANS EXPRESS LLC | | | SCAC4 |
| 4791 | TIEO | TRI-NET LOGISTICS (ASIA) PTE LTD | | | SCAC4 |
| 4792 | TIEP | TI EXPRESS INC | | | SCAC4 |
| 4793 | TIEQ | T I E | | | SCAC4 |
| 4794 | TIET | TIESLER TRUCKING INC | | | SCAC4 |
| 4795 | TIEW | TRINE THERESA K/S | | | SCAC4 |
| 4796 | TIEY | TRANSPORT I EXPRESS LLC | | | SCAC4 |
| 4797 | TIF | Tiffany Air Transport | Callsign: Tiffany, | ZW | AVCODES |
| 4798 | TIFB | TRANSMODAL INTL FREIGHT CONSULTANTS | | | SCAC4 |
| 4799 | TIFC | TRANSPORTES INTERNACIONALES FDS SA | | | SCAC4 |
| 4800 | TIFD | TRI-STAR TRANSPORT INC | | | SCAC4 |
