| 5101 | DTAU | HUBEI DONG RUNZE SPECIAL VEHICLE EQUIPMENT CO., LTD. | | PRC | BIC |
| 5102 | DTAZ | DOMINION TERMINAL ASSOCIATION | | | PWRC |
| 5103 | DTBB | DERO TRANSPORTATION INC | | | SCAC4 |
| 5104 | DTBD | D & A TRANSPORT | | | SCAC4 |
| 5105 | DTBEK | MÁV Dunántúli Távközlési és Biztosítóberendezés Építő Kft. | | HU | VKM |
| 5106 | DTBH | DEPPE TRANSPORT SERVICES INC | | | SCAC4 |
| 5107 | DTBR | DTB | | | SCAC4 |
| 5108 | DTCD | DELEURME TRUCKING LTD | | | SCAC4 |
| 5109 | DTCH | DISTTECH | | | SCAC4 |
| 5110 | DTCL | DIRECT CONTAINER LINE | | | SCAC4 |
| 5111 | DTCM | DALLAND TRANSPORT COMPANY INC | | | SCAC4 |
| 5112 | DTCN | DAVIS & DAVIS TRANSPORT LLC | | | SCAC4 |
| 5113 | DTCS | D T TRANSPORT INC | | | SCAC4 |
| 5114 | DTCU | DECCAN TRANSCON LEASING PVT LTD | | IND | BIC |
| 5115 | DTCW | DIANE TANKER CORPORATION | | | SCAC4 |
| 5116 | DTCX | DTE Transportation Services, Inc. | 7/2005 | | NAKINA |
| 5117 | DTCX | DTE Coal Services | added 4/2009 | | NAKINA |
| 5118 | DTCX | DTE Coal Services, Inc. | added 7/2001; eliminated 1/2009 | | NAKINA |
| 5119 | DTCX | DTE Transportation Services, Inc. | 7/2000 (not listed) | | NAKINA |
| 5120 | DTCX | Domtar Ltd. | added 10/1965; 10/1966-4/1970; eliminated 7/1973 | | NAKINA |
| 5121 | DTCX | Dominion Tar & Chemical Co., Ltd. | 8/1920-7/1965; eliminated 10/1965 | | NAKINA |
| 5122 | DTCX | Dominion Tar & Chemical Co., Ltd. | 4/38-7/65; eliminated 10/65 | | NRHS |
| 5123 | DTCX | Domtar Ltd. | added 10/65; 10/66-4/70; eliminated 7/73 | | NRHS |
| 5124 | DTCX | DTE Transportation Services, Inc. | Jul-00 | | NRHS |
| 5125 | DTCX | DTE Coal Services, Inc. | added 7/2001 | | NRHS |
| 5126 | DTCX | *DOMTAR LTD. [DOMINION TAR & CHEMICAL CO., LTD.] | | | PWRC |
| 5127 | DTCX | +DTE TRANSPORTATION SERVICES, INC. | | | PWRC |
| 5128 | DTCX | DTE Transportation Services | | | RSRV |
| 5129 | DTCX | DTE COAL SERVICES INC | | | SCAC4 |
| 5130 | DTCX | Dominion Tar & Chemical Co., Ltd. | | USA | TRAFFIC |
| 5131 | DTDA | DEEANNS TRUCKING DISPATCHERS | | | SCAC4 |
| 5132 | DTDC | DAY TO DAY LOGISTICS INC | | | SCAC4 |
| 5133 | DTDD | D TRANS | | | SCAC4 |
| 5134 | DTDE | D & T DELIVERY INC | | | SCAC4 |
| 5135 | DTDF | DEPENDABLE TRANSPORT INC | | | SCAC4 |
| 5136 | DTDJ | DALTON TRUCKING INC | | | SCAC4 |
| 5137 | DTDK | DANS TRANSPORT CORP | | | SCAC4 |
| 5138 | DTDL | DOOR TO DOOR SERVICES | | | SCAC4 |
| 5139 | DTDQ | DIRT DOCTORS LLC | | | SCAC4 |
| 5140 | DTDR | DTD CARGO SA | | | SCAC4 |
| 5141 | DTDS | DAWN TO DAWN EXPRESS | | | SCAC4 |
| 5142 | DTDX | Dow Chemical Co., Texas Division | 4/1961; added 10/1961; 7/1965; eliminated 1/1966 | | NAKINA |
| 5143 | DTDX | General American Transportation Corp. | added 7/1958; eliminated 10/1958 | | NAKINA |
| 5144 | DTDX | Dow Chemical Co., Texas Division | 1/1943-10/1957; eliminated 7/1958 | | NAKINA |
| 5145 | DTDX | Dow Chemical Co., Texas Division | 1/52-10/57; eliminated 7/58 | | NRHS |
| 5146 | DTDX | General American Transportation Corp. | added 7/58; eliminated 10/58 | | NRHS |
| 5147 | DTDX | Dow Chemical Co., Texas Division | 4/61-7/65; eliminated 1/66 | | NRHS |
| 5148 | DTDX | DOW CHEMICAL CO., TEXAS DIV. (GENERAL AMERICAN TRANSPORTATION CORP.) | | | PWRC |
| 5149 | DTE | Tamas Darida Enterprise | Callsign: Darida-Air, | H | AVCODES |
| 5150 | DTE | DRESSER TRANSPORTATION EQUIPMENT DIV. OF DRESSER INDUSTRIES | | | PWRC |
| 5151 | DTEA | DUECK TRUCKING | | | SCAC4 |
| 5152 | DTED | DIRECT TRANSPORTATION | | | SCAC4 |
| 5153 | DTEE | D & T ENTERPRISES INC | | | SCAC4 |
| 5154 | DTEH | DESTINY TRUCKING | | | SCAC4 |
| 5155 | DTEI | DIRECT TRANSIT EXPRESS LLC | | | SCAC4 |
| 5156 | DTEL | DETONADORES ESTRELLA S A DE C V | | | SCAC4 |
| 5157 | DTEO | DOUBLE TROUBLE TRUCKING INC | | | SCAC4 |
| 5158 | DTEP | DENANA TRANSPORT | | | SCAC4 |
| 5159 | DTER | DATE TRUCKING LLC | | | SCAC4 |
| 5160 | DTEW | DWIGHT TRUCKING INC | | | SCAC4 |
| 5161 | DTEX | Dresser Transportation Equipment Division, Dresser Industries, Inc. (test cars) | 1/1994-7/2005 (not listed) | | NAKINA |
| 5162 | DTEX | Dresser Transportation Equipment Division, Dresser Industries, Inc. | added 10/1969; 4/1970-1/1980; eliminated 1/1981 | | NAKINA |
| 5163 | DTEX | Dresser Transportation Equipment Division, Dresser Industries, Inc. | added 10/69; 4/70-1/80; eliminated 1/81 | | NRHS |
| 5164 | DTEX | Dresser Transportation Equipment Division, Dresser Industries, Inc. (test cars) | 1/94-7/2000 | | NRHS |
| 5165 | DTEX | DRESSER TRANSPORTATION EQUIPMENT DIV. OF DRESSER INDUSTRIES (TEST CARS) | | | PWRC |
| 5166 | DTEX | Dresser Transportation Equipment | | | RSRV |
| 5167 | DTEX | DRESSER TRANSPORTATION EQUIPMENT DI | | | SCAC4 |
| 5168 | DTEY | DOWD, TERRY INC | | | SCAC4 |
| 5169 | DTFC | DEPENDABLE TRANSFER LLC | | | SCAC4 |
| 5170 | DTFE | DIRECT TRANSFER EXPRESS | | | SCAC4 |
| 5171 | DTFF | DILLS TRUCKING INC | | | SCAC4 |
| 5172 | DTFG | DONARD TRANSPORTATION LLC | | | SCAC4 |
| 5173 | DTFH | DIXON TRANSPORT INC | | | SCAC4 |
| 5174 | DTFK | DAN TRUCKING INC | | | SCAC4 |
| 5175 | DTFL | DESIGN TURF TECHNOLOGIES INC | | | SCAC4 |
| 5176 | DTFM | D-THREE (D-3) FARMS | | | SCAC4 |
| 5177 | DTFR | DT & FREIGHT COMPANY INC | | | SCAC4 |
| 5178 | DTFS | DIAMOND TOWING & FLOAT SERVICE INC | | | SCAC4 |
| 5179 | DTG | Airzena LLC d/b/a Aircompany AIRZENA | IATA: LV, Callsign: Zena, | GE | AVCODES |
| 5180 | DTGC | DT LOGISTICS LLC | | | SCAC4 |
| 5181 | DTGE | DEETAG LTD | | | SCAC4 |
| 5182 | DTGG | DGD TRANSPORT INC | | | SCAC4 |
| 5183 | DTGH | DHALIWAL TANK LINE LLP | | | SCAC4 |
| 5184 | DTGI | DIAMOND TRANSPORTATION GROUP INCORP | | | SCAC4 |
| 5185 | DTGJ | DIMITARS TRUCKING | | | SCAC4 |
| 5186 | DTGM | DIAMOND TRANSFER & DISTRIBUTION CO | | | SCAC4 |
| 5187 | DTGN | DEESHAN TRANSPORT LTD | | | SCAC4 |
| 5188 | DTGO | DICKSON TRANSPORT INC | | | SCAC4 |
| 5189 | DTGP | DEDICATED TRANSPORTATION GROUP INC | | | SCAC4 |
| 5190 | DTGQ | DO THE RIGHT THING TRUCKING LLC | | | SCAC4 |
| 5191 | DTGR | DIEGOS TRUCKING COMPANY | | | SCAC4 |
| 5192 | DTGS | DTG MAPS INC | | | SCAC4 |
| 5193 | DTGU | NIPPON GASES OFFSHORE LIMITED | | GB | BIC |
| 5194 | DTGU | DOMINION TECHNOLOGY GASES LTD | | | SCAC4 |
| 5195 | DTH | Tassili Airlines | IATA: SF, Callsign: Tassili Air, | DZ | AVCODES |
| 5196 | DTH | Tassili Airlines | IATA: SF | | ICAO1 |
| 5197 | DTH | Tassili Airlines | | DZ | TRAFFIC |
| 5198 | DTHB | DARY TRANSPORT | | | SCAC4 |
| 5199 | DTHD | DUNDIE TRANSPORTATION | | | SCAC4 |
| 5200 | DTHE | DTH EXPEDITORS INC | | | SCAC4 |
