| 3201 | TESM | TRANSPORTES ESPECIALIZADOS SAKA SA | | | SCAC4 |
| 3202 | TESN | TESONE, DAVID TRUCKING, INCORPORATE | | | SCAC3 |
| 3203 | TESP | T & E TRANSPORT | | | SCAC4 |
| 3204 | TESQ | TRANSPORTES ESQUERRA | | | SCAC4 |
| 3205 | TESR | TESAR INDUSTRIAL CONTRACTORS INC | | | SCAC3 |
| 3206 | TEST | TERMINAL STEAMSHIP COMPANY INC | | | SCAC3 |
| 3207 | TEST | TERMINAL STEAMSHIP COMPANY INC | | | SCAC4 |
| 3208 | TESV | TRANSCONTINENTAL ENERGY SAVING PROD | | | SCAC4 |
| 3209 | TESX | Thomas E. Snyder Sons Co. | 1/1941-1/1945 | | NAKINA |
| 3210 | TESX | THOMAS E. SNYDER SONS CO. | | | PWRC |
| 3211 | TESX | TRANSPORTATION TECHNOLOGY CENTER IN | | | SCAC4 |
| 3212 | TESY | THERMO ENERGY SYSTEMS INC | | | SCAC4 |
| 3213 | TET | Tepavia-Trans Airline | Callsign: Tepavia, Founded on 18 May 1999. Ceased operations in 2006. | MD | AVCODES |
| 3214 | TET | Tepavia-Trans Airlines | | | ICAO1 |
| 3215 | TET | | | NL | TRAFFIC |
| 3216 | TETA | TETON TRANSPORTATION INC | | | SCAC4 |
| 3217 | TETB | TRIPLE E TRANSPORT | | | SCAC3 |
| 3218 | TETC | T & E TRUCKING | | | SCAC3 |
| 3219 | TETC | TERRY TRUCKING INC | | | SCAC4 |
| 3220 | TETE | TETERBORO TRANSPORT, INC | | | SCAC3 |
| 3221 | TETF | TRIPLE E TRANSPORT | | | SCAC4 |
| 3222 | TETG | TETON TRUCKING | | | SCAC3 |
| 3223 | TETH | TENNESSEE TRUCKING, INC | | | SCAC3 |
| 3224 | TETH | TENNESSEE TRUCKING INC | | | SCAC4 |
| 3225 | TETI | TOMS EAGLE TRUCKING | | | SCAC3 |
| 3226 | TETI | TECATE TRANSPORTATION INC | | | SCAC4 |
| 3227 | TETK | TEXS TRUCKING INC | | | SCAC3 |
| 3228 | TETL | TEHAMA TRUCK LEASING INC | | | SCAC3 |
| 3229 | TETM | TRANSPORTES TVM | | | SCAC4 |
| 3230 | TETN | TEAM TRANSPORT INC | | | SCAC3 |
| 3231 | TETN | TETON TRANSPORTATION INC (CONTAINER | | | SCAC4 |
| 3232 | TETO | TERMINAL TRANSPORTATION INC | | | SCAC3 |
| 3233 | TETO | TEXAN EAGLE TRANSPORTATION INC | | | SCAC4 |
| 3234 | TETP | THERESA TRANSPORTATION COMPANY | | | SCAC3 |
| 3235 | TETP | TIAN ENTERPRISES LTD | | | SCAC4 |
| 3236 | TETQ | TEMPLE TRANSFER CO | | | SCAC3 |
| 3237 | TETQ | TEMPLE TRANSFER CO | | | SCAC4 |
| 3238 | TETR | TERMINAL TRANSPORTATION CO, INC | | | SCAC3 |
| 3239 | TETR | TRANSPORTES ESTRADA | | | SCAC4 |
| 3240 | TETT | TERRAIN TAMER INC-INTERSTATE TRANSP | | | SCAC3 |
| 3241 | TETU | TETRA4 (PTY) LTD | | ZA | BIC |
| 3242 | TETV | TERMINAL TRANSPORT INC | | | SCAC3 |
| 3243 | TETX | Transelectrix Technology Inc. | added 10/1987; eliminated 7/1990 | | NAKINA |
| 3244 | TETX | Asea Brown Boveri, Inc. | added 7/1990; eliminated 7/1992 | | NAKINA |
| 3245 | TETX | Transelectrix Technology Inc. | added 10/87; eliminated 7/90 | | NRHS |
| 3246 | TETX | Asea Brown Boveri, Inc. | added 7/90; eliminated 7/92 | | NRHS |
| 3247 | TETX | RETIRED 08-03-92 ATP (ASEA BROWN BOVERI, INC. [TRANSELECTRIX TECHNOLOGY INC.]) | | | PWRC |
| 3248 | TETY | TERRELL TRANSPORT INC | | | SCAC3 |
| 3249 | TEU | TAG City Air | Callsign: Cityways, ICAO code change from CIP | D | AVCODES |
| 3250 | TEU | Teuto Air Germany | Callsign: Teuto Air, | D | AVCODES |
| 3251 | TEU | TAG Aviation (Malta) Ltd | Callsign: TAG Malta, | M | AVCODES |
| 3252 | TEUD | THORNE, R CLAUDE | | | SCAC4 |
| 3253 | TEUG | TEUG EAST | | | SCAC4 |
| 3254 | TEUGL | TRANSEUROPA PORT SA - SUCURSALA DROBETA TR. SEVERIN | | RO | VKM |
| 3255 | TEUN | TEUNISSEN TRANSPORTATION INC | | | SCAC3 |
| 3256 | TEUR | THEURER TRUCKING | | | SCAC3 |
| 3257 | TEUT | TEUT INC | | | SCAC3 |
| 3258 | TEUU | GULFCOAST TRANSIT COMPANY | | | PWRC |
| 3259 | TEUU | Gulfcoast Transit | | | RSRV |
| 3260 | TEUU | GULFCOAST TRANSIT COMPANY | | | SCAC4 |
| 3261 | TEUW | TEUG WEST LLC | | | SCAC4 |
| 3262 | TEV | Thüringer Eisenbahnverein Weimar e.V. | | DE | VKM |
| 3263 | TEVA | TRANSPORT EVAN AUDETTE | | | SCAC4 |
| 3264 | TEVI | TRANSPORT ERIC VALLEE IN | | | SCAC4 |
| 3265 | TEVK | TEX VISIONS LLC | | | SCAC4 |
| 3266 | TEVL | TERMINAL VAN LINES, INC | | | SCAC3 |
| 3267 | TEVM | TAS ENVIRONMENTAL SERVICES LP | | | SCAC4 |
| 3268 | TEVO | TEVIOTDALE TRUCK SERVICES | | | SCAC4 |
| 3269 | TEVR | TRICIL ENVIRONMENTAL RESPONSE INC | | | SCAC3 |
| 3270 | TEVR | TERRATEC ENVIRONMENTAL LTD | | | SCAC4 |
| 3271 | TEVT | TEVAN TRANSFER & STORAGE CO INC | | | SCAC3 |
| 3272 | TEVZ | TRAC LEASE INC | | | SCAC4 |
| 3273 | TEW | Airteam Charter (Pty) Ltd | Callsign: Teamwork, | ZA | AVCODES |
| 3274 | TEWA | TEWASHO II LLC | | | SCAC4 |
| 3275 | TEWE | TENNESSEE WESTERN EXPRESS INC | | | SCAC3 |
| 3276 | TEWH | TAYLOR-EDWARDS WAREHOUSE & TRANSFER | | | SCAC3 |
| 3277 | TEWH | TEWASHO INTERNATIONAL INC | | | SCAC4 |
| 3278 | TEWQ | TEW, W L | | | SCAC3 |
| 3279 | TEWT | TREADWAY TRUCKING INC | | | SCAC3 |
| 3280 | TEWT | T E W TRUCKING LLC | | | SCAC4 |
| 3281 | TEWW | TETON WORLD TRAVEL | | | SCAC3 |
| 3282 | TEX | C.A.T.E.X. Compagnie Aérien de Transports Executives | Callsign: CATEX, | F | AVCODES |
| 3283 | TEX | Freedom Jets, LLC | Callsign: Big Tex, | USA | AVCODES |
| 3284 | TEX | Catex | | | ICAO1 |
| 3285 | TEX | Texas Petroleum Products Co. | 7/1930-7/1932; 7/1937 (not listed) | | NAKINA |
| 3286 | TEX | CHEVRON-TEXACO [TEXACO, INC.; TEXAS PETROLEUM PRODUCTS CO.] | | | PWRC |
| 3287 | TEXB | TIME EXPRESS INC | | | SCAC3 |
| 3288 | TEXB | TRANS ONTARIO EXPRESS | | | SCAC4 |
| 3289 | TEXC | Texas Central R.R. Co. | 4/1970-1/1980; eliminated 7/1992; 1/1994-7/2005 | | NAKINA |
| 3290 | TEXC | Texas Central R.R. Co. | 4/70-1/80; eliminated 7/92; 1/94-7/2000 | | NRHS |
| 3291 | TEXC | TEXAS CENTRAL RAILROAD CO. | | | PWRC |
| 3292 | TEXC | Texas Central Railroad | | | RSRV |
| 3293 | TEXC | TEXAS CENTRAL RAILROAD COMPANY | | | SCAC3 |
| 3294 | TEXC | Texas Central R.R. Co. | | USA | TRAFFIC |
| 3295 | TEXD | TRINITY EXPEDITING | | | SCAC3 |
| 3296 | TEXE | TRANSAMERICAN EXPRESS INC | | | SCAC3 |
| 3297 | TEXE | TRANSBORDER EXPRESS | | | SCAC4 |
| 3298 | TEXH | TABER EXHIBIT COMPANY INC | | | SCAC4 |
| 3299 | TEXI | TEX-EXPRESS INC | | | SCAC3 |
| 3300 | TEXJ | TEXAS SOUTHWEST TRANSPORT LTD | | | SCAC4 |
