| 7201 | TOMV | THINGS TO MOVE INC | | | SCAC4 |
| 7202 | TOMW | TOMPKINS AND WEEKS INC | | | SCAC4 |
| 7203 | TOMX | Terminal Oil Mill Co. | 8/1920 | | NAKINA |
| 7204 | TOMX | Terminal Oil Mill Co. (Southport Mill, Ltd.) | 7/1923 | | NAKINA |
| 7205 | TOMX | Snyder Brothers' Car Line | 1/1941 | | NAKINA |
| 7206 | TOMX | *SOUTHPORT MILL, LTD. [TERMINAL OIL MILL CO.] | | | PWRC |
| 7207 | TOMX | *SNYDER BROTHERS' CAR LINE | | | PWRC |
| 7208 | TOMZ | TRADER'S OIL MILL | | | PWRC |
| 7209 | TON | Aero Tonala | Callsign: Aerotonala, | MEX | AVCODES |
| 7210 | TON | Lulutai Airlines Limited | IATA: L8, Callsign: Tonga, | TO | AVCODES |
| 7211 | TON | Aero Tanala | | | ICAO1 |
| 7212 | TONA | TONA TRANSPORT (DIVISION OF TMH LOG | | | SCAC4 |
| 7213 | TOND | TREASURES ON DISPLAY INC | | | SCAC4 |
| 7214 | TONE | TRANSPORT ONE | | | SCAC4 |
| 7215 | TONI | TONY'S EXPRESS, INC | | | SCAC1 |
| 7216 | TONI | TONYS EXPRESS INC | | | SCAC4 |
| 7217 | TONJ | TWO ONE NINE ONE FIVE SIX TWO (2191 | | | SCAC4 |
| 7218 | TONL | TONKOVICH OIL CO INC | | | SCAC4 |
| 7219 | TONN | TONER, CLAUDE & TERRY LTD | | | SCAC4 |
| 7220 | TONP | THOMPSONS OIL & PROPANE | | | SCAC4 |
| 7221 | TONR | TRANSCON SHIPPING COMPANY INC | | | SCAC4 |
| 7222 | TONS | TONS LOGISTICS INTERNATIONAL LIMITE | | | SCAC4 |
| 7223 | TONU | TANK ONE NV | | B | BIC |
| 7224 | TONU | TRANS OCEAN LINE, LIMITED | | | PWRC |
| 7225 | TONU | Trans Ocean Line Limited | | | RSRV |
| 7226 | TONU | TANK CONTAINERS INVESTMENTS ONE LIM | | | SCAC4 |
| 7227 | TONW | TONAWANDA TANK TRANSPORT SERVICE IN | | | SCAC4 |
| 7228 | TONY | TONYS TRUCKING INC | | | SCAC4 |
| 7229 | TONYSA | Transport Osobowy "Nysa" | City: Lodz | PL | TRAFFIC |
| 7230 | TOO | Alieurope | Callsign: Alieurope, | I | AVCODES |
| 7231 | TOOE | TOOTERS TRANSPORT | | | SCAC1 |
| 7232 | TOOF | TOOF TRANSFER INC | | | SCAC4 |
| 7233 | TOOI | TWO ONE ONE NINE SIX TWO ONE (21196 | | | SCAC4 |
| 7234 | TOOK | TOOLEY, R L TRUCKING | | | SCAC4 |
| 7235 | TOOL | TOOL SERVICES LTD | | | SCAC4 |
| 7236 | TOOS | TRANSPORTES CORRALES | | | SCAC4 |
| 7237 | TOOT | TOOT N TOOT TRUCKING SYSTEM INC | | | SCAC4 |
| 7238 | TOOZ | Technická obnova a ochrana železníc a.s | | SK | VKM |
| 7239 | TOP | Top Air Havacilik Sanayi Ve Ticaret A.S. | Callsign: Air Top, | TR | AVCODES |
| 7240 | TOP | Topflight Aviation Co. Ltd. | Callsign: topflight, | GB | AVCODES |
| 7241 | TOP | Top Air | | | ICAO1 |
| 7242 | TOP | TEXAS, OKLAHOMA & PORTLAND | | | PWRC |
| 7243 | TOPC | TOP CLASS LLC | | | SCAC4 |
| 7244 | TOPD | TOPLINE TRANSPORTATION INC | | | SCAC4 |
| 7245 | TOPH | TOP HAT LIVESTOCK 2003 LTD | | | SCAC4 |
| 7246 | TOPI | TOP CAT INC | | | SCAC4 |
| 7247 | TOPK | TOPEAKA FARMS LTD | | | SCAC4 |
| 7248 | TOPM | TRANSPORT P M DROUIN | | | SCAC4 |
| 7249 | TOPM | Topeka Metropolitan Transit Authority: Topeka Metro | City: Cincinnati | USA | TRAFFIC |
| 7250 | TOPO | TOPOCEAN CONSOLIDATION SERVICE (LOS | | | SCAC4 |
| 7251 | TOPP | TOPAR, L P OIL CO | | | SCAC4 |
| 7252 | TOPQ | T O P S S INC | | | SCAC4 |
| 7253 | TOPR | Top Rail | | F | TRAFFIC |
| 7254 | TOPU | TOPTAINER CONTAINERMANAGEMENT & SALES GMBH | | D | BIC |
| 7255 | TOPU | TOPTAINER CONTAINERMANAGEMENT & SAL | | | SCAC4 |
| 7256 | TOPW | TAYLOR OIL & PROPANE INC | | | SCAC4 |
| 7257 | TOPY | TOPSYN FLEXIBLE PACKAGING LTD | | | SCAC4 |
| 7258 | TOQC | TOTAL QUALITY CORPORATION | | | SCAC4 |
| 7259 | TOQI | TOMMY TRANSPORTATION INC | | | SCAC4 |
| 7260 | TOQL | TOTAL QUALITY INC | | | SCAC4 |
| 7261 | TOQS | T O PALLETS | | | SCAC4 |
| 7262 | TOR | Toronto Airways Ltd. | Callsign: Torontoair, | CDN | AVCODES |
| 7263 | TOR | flyGTA, Inc. | IATA: SX, Callsign: Homerun, IATA Prefix: 013, | CDN | AVCODES |
| 7264 | TOR | Toronto Airways | | | ICAO1 |
| 7265 | TOR | Trans-Ontario Ry. Co. | added 4/1997; eliminated 7/1998 | | NAKINA |
| 7266 | TOR | RailLink Canada Ltd. | 7/2000-7/2005 | | NAKINA |
| 7267 | TOR | Trans-Ontario Ry. Co. | added 4/97; eliminated 7/98 | | NRHS |
| 7268 | TOR | RailLink Canada Ltd. | Jul-00 | | NRHS |
| 7269 | TOR | RAILINK CANADA LIMITED [TRANS-ONTARIO RWY. CO.] | | | PWRC |
| 7270 | TOR | RailLink Canada Limited (Genesee & Wyoming) | | | RSRV |
| 7271 | TOR | Sagano Scenic Railway (Torokko) | | J | TRAFFIC |
| 7272 | TOR | TORPOL S.A. | | PL | VKM |
| 7273 | TORD | TORRES, D | | | SCAC4 |
| 7274 | TORG | T ONE (1) TRUCKING | | | SCAC4 |
| 7275 | TORJ | TORRES, J CO INC | | | SCAC4 |
| 7276 | TORK | TORKE LLC | | | SCAC4 |
| 7277 | TORM | TORTORTELLO MOVING TRUCKING CO INC | | | SCAC4 |
| 7278 | TORN | TERAN VAZENZUELA, ADRIANA | | | SCAC4 |
| 7279 | TORO | Przedsiębiorstwo “TORO” Piotr Kowalski Sp. Komandytowa | | PL | VKM |
| 7280 | TORONTO | | City: Toronto | CDN | TRAFFIC |
| 7281 | TORQ | TORCH TRANSPORT INC | | | SCAC4 |
| 7282 | TORR | TORRES JALOMO, FERNANDO | | | SCAC4 |
| 7283 | TORS | TOWERS TRANSP INC | | | PWRC |
| 7284 | TORS | TORRESDALE FUEL CO INC | | | SCAC4 |
| 7285 | TORU | MAERSK A/S | | DK | BIC |
| 7286 | TORU | TORM LINES | | | PWRC |
| 7287 | TORU | Torm Lines | | | RSRV |
| 7288 | TORU | TORM LINES | | | SCAC1 |
| 7289 | TORU | A P MOLLER | | | SCAC4 |
| 7290 | TORV | TORA INVESTMENTS INC | | | SCAC4 |
| 7291 | TORX | Toronto Elevators Ltd. | added 1/1954; 7/1954-4/1961; eliminated 7/1962 | | NAKINA |
| 7292 | TORX | Maple Leaf Mills Ltd. | added 7/1962; 7/1965-1/1975; eliminated 7/1977 | | NAKINA |
| 7293 | TORX | Toronto Elevators Ltd. | 10/57-4/61 | | NRHS |
| 7294 | TORX | Maple Leaf Mills Ltd. | 7/65-1/75; eliminated 7/77 | | NRHS |
| 7295 | TORX | *MAPLE LEAF MILLS LTD. [TORONTO ELEVATORS LTD.] | | | PWRC |
| 7296 | TORX | *TONGUE RIVER RAILROAD CO. | | | PWRC |
| 7297 | TORY | TORY LLC | | | SCAC4 |
| 7298 | TORZ | TORCO INC | | | PWRC |
| 7299 | TORZ | Torco Inc | | | RSRV |
| 7300 | TOS | Tropic Air Limited | IATA: PM, Callsign: Tropiser, Designator PM recalled by IATA | BH | AVCODES |
