| 14201 | ATEG | AUTO TRANSPORTES ESPECIALIZADOS G M | | | SCAC4 |
| 14202 | ATEH | ARTECH | | | SCAC3 |
| 14203 | ATEH | ARTECH INC | | | SCAC4 |
| 14204 | ATEK | AMG TRANSPORT EXPRESS INC | | | SCAC4 |
| 14205 | ATEL | ATLANTIC EXPRESS LINES INC | | | SCAC3 |
| 14206 | ATEL | ANYTIME EXPRESS LTD | | | SCAC4 |
| 14207 | ATEM | ATTEMA, HARLAN | | | SCAC4 |
| 14208 | ATEN | ATKINS ENTERPRISES LLC | | | SCAC4 |
| 14209 | ATEO | ACE TANK & EQUIPMENT | | | SCAC3 |
| 14210 | ATEQ | ACME TRUCK LINE INC | | | SCAC3 |
| 14211 | ATEQ | ACME TRUCK LINE INC | | | SCAC4 |
| 14212 | ATER | ATENHAN TRUCKING INC | | | SCAC3 |
| 14213 | ATES | ACTIVE TRANSPORT SERVICE INC | | | SCAC3 |
| 14214 | ATET | AT & E TRUCKING | | | SCAC3 |
| 14215 | ATEV | A T R ENTERPRISES INC | | | SCAC3 |
| 14216 | ATEV | A TWO (2) B TRUCKING & LOGISTICS | | | SCAC4 |
| 14217 | ATEW | A THREE RIVERS FORWARDING INC | | | SCAC3 |
| 14218 | ATEX | Asplundh Tree Expert Co., R.R. Division | 1/1994-7/2005 (not listed) | | NAKINA |
| 14219 | ATEX | Andrews Tanning Extract Co. | 7/1935 | | NAKINA |
| 14220 | ATEX | Teas Extract Co. | 7/1937-7/1954; eliminated 7/1956 | | NAKINA |
| 14221 | ATEX | Teas Extract Co. | 4/38-1/52; eliminated 7/56 | | NRHS |
| 14222 | ATEX | Asplundh Tree Expert Co., R.R. Division | 1/94-7/2000 | | NRHS |
| 14223 | ATEX | *TEAS EXTRACT CO. | | | PWRC |
| 14224 | ATEX | +ASPLUNDH TREE EXPERT COMPANY | | | PWRC |
| 14225 | ATEX | Asplundh Tree Expert | | | RSRV |
| 14226 | ATEX | ASPLUNDH TREE EXPERT COMPANY | | | SCAC4 |
| 14227 | ATEZ | ATLANTIC ENERGY | | | PWRC |
| 14228 | ATF | Compania Aerotecnicas Fotograficas | Callsign: Aerotecnicas, | E | AVCODES |
| 14229 | ATF | Compania Aerotecnicas Fotograficas | | | ICAO1 |
| 14230 | ATFA | ALLEN TRANSFER & STORAGE CO | | | SCAC3 |
| 14231 | ATFA | A.T.F. Arienti | | I | TRAFFIC |
| 14232 | ATFB | AMERICAN TRANSFER & STORAGE CO | | | SCAC3 |
| 14233 | ATFC | ARROW TRANSFER COMPANY INC | | | SCAC3 |
| 14234 | ATFC | AUTOTRANSPORTES FRONTERIZOS DE CARG | | | SCAC4 |
| 14235 | ATFD | A T F INDUSTRIES INC | | | SCAC3 |
| 14236 | ATFD | AUTO TRANSPORTES FRANZONI S A DE C | | | SCAC4 |
| 14237 | ATFE | ATLANTIC FREIGHT SYSTEMS INC | | | SCAC4 |
| 14238 | ATFF | ALLTRANSPORT INCORPORATED | | | SCAC3 |
| 14239 | ATFG | ASTRO FREIGHT | | | SCAC3 |
| 14240 | ATFH | AUNT MID PRODUCE COMPANY | | | SCAC4 |
| 14241 | ATFI | ALLIED TRANSPORTATION FORWARDING IN | | | SCAC3 |
| 14242 | ATFJ | A B C TRANSFER CO | | | SCAC3 |
| 14243 | ATFJ | ACE TRANSPORT LLC | | | SCAC4 |
| 14244 | ATFK | ATKINSON FREIGHT LINES CORP | | | SCAC3 |
| 14245 | ATFL | ADKINS TRUCKING & FREIGHT LINES INC | | | SCAC3 |
| 14246 | ATFM | ALS TRANSFER COMPANY INC | | | SCAC3 |
| 14247 | ATFN | ATF TRUCKING COMPANY INC | | | SCAC3 |
| 14248 | ATFO | ACE TRANSFER & STORAGE CO | | | SCAC4 |
| 14249 | ATFQ | AAA TRANSFER & STORAGE CO INC | | | SCAC3 |
| 14250 | ATFQ | ATF TRANSPORT INC | | | SCAC4 |
| 14251 | ATFS | ATLANTIC TRANSFER & STORAGE CO | | | SCAC4 |
| 14252 | ATFT | ATLANTA FUEL COMPANY INC | | | SCAC4 |
| 14253 | ATFU | ANTRAK FREIGHT LTD | | | SCAC3 |
| 14254 | ATFV | AMERICAN TRANSFER & STORAGE OF DAYT | | | SCAC3 |
| 14255 | ATFY | ARAN TRANSFER INC | | | SCAC3 |
| 14256 | ATFY | ARAN TRANSFER INC | | | SCAC4 |
| 14257 | ATG | Aerotrans Airline | Callsign: Bachyt, | KZ | AVCODES |
| 14258 | ATG | Air Togo | IATA: AX, Callsign: Alfa X-ray, | TG | AVCODES |
| 14259 | ATG | Aerotranscargo | Callsign: Worldcargo, ICAO callsign changed to Moldcargo | MD | AVCODES |
| 14260 | ATG | Aerotranscargo SRL | IATA: F5, Callsign: Moldcargo, ICAO callsign changed to Worldcargo | MD | AVCODES |
| 14261 | ATG | Aerotrans Airline | | | ICAO1 |
| 14262 | ATG | Autotransportlogistik GmbH | Eschborn | D | privat-bahn.de |
| 14263 | ATG | Autotransportlogistic GmbH | City: Eschborn, verschmolzen auf DB Schenker Rail Automotive GmbH | D | TRAFFIC |
| 14264 | ATG | DB Schenker | | DE | VKM |
| 14265 | ATGA | ANDERSON TRUCKING COMPANY | | | SCAC3 |
| 14266 | ATGB | ANDERSON TUG & BARGE CO | | | SCAC3 |
| 14267 | ATGB | ANTIGMAR LIMITED | | | SCAC4 |
| 14268 | ATGC | A T P TRUCKING COMPANY INC | | | SCAC3 |
| 14269 | ATGD | ATLANTIC GOOD SERVICES, INC | | | SCAC3 |
| 14270 | ATGD | ATLANTIC GOOD SERVICES INC | | | SCAC4 |
| 14271 | ATGE | AMERICAN TOWING SERVICE INC | | | SCAC3 |
| 14272 | ATGE | AIR TIGER EXPRESS (U S A) INC | | | SCAC4 |
| 14273 | ATGF | ATLANTIC GULF & STEVEDORING | | | SCAC3 |
| 14274 | ATGF | ARMSTRONG TRANSFER & STORAGE CO INC | | | SCAC4 |
| 14275 | ATGG | ALS TRUCKING SERVICE | | | SCAC3 |
| 14276 | ATGG | AUTOTRANSPORTES GAG | | | SCAC4 |
| 14277 | ATGI | ALEC TRUCKING CO INC | | | SCAC3 |
| 14278 | ATGI | AMIGO TRUCKING & GOODE CONSTRUCTION | | | SCAC4 |
| 14279 | ATGJ | ALLMAN TRUCKING | | | SCAC3 |
| 14280 | ATGK | A T TRUCKING & LEASING CO OF NEW YO | | | SCAC3 |
| 14281 | ATGK | ATLANTIC CARGO INC | | | SCAC4 |
| 14282 | ATGL | A T F TRUCKING LLC (N/K/A GREATWIDE | | | SCAC4 |
| 14283 | ATGM | AMERICAN TRADING AND PRODUCTION COR | | | SCAC3 |
| 14284 | ATGM | AMERICAN GUARDIAN PROTECTION INC | | | SCAC4 |
| 14285 | ATGM | Arriva TGM (Tellings-Golden Miller) | | GB | TRAFFIC |
| 14286 | ATGN | ABC TRUCKING CO | | | SCAC3 |
| 14287 | ATGN | A-TEC SIGNS (DIV OF ERIK JEPPESEN H | | | SCAC4 |
| 14288 | ATGO | ASG TRUCKING | | | SCAC4 |
| 14289 | ATGP | ATLANTIC GRAPHIC SERVICE INC | | | SCAC3 |
| 14290 | ATGP | ATG | | | SCAC4 |
| 14291 | ATGQ | ACTIVE TRUCKING SERVICE | | | SCAC3 |
| 14292 | ATGQ | A2Z TRANSPORT | | | SCAC4 |
| 14293 | ATGRV | ATELIERELE CFR GRIVITA SA | | RO | VKM |
| 14294 | ATGS | ATLAS TUG SERVICE | | | SCAC3 |
| 14295 | ATGS | ALLTRANS LOGISTICS INC | | | SCAC4 |
| 14296 | ATGU | BURLINGTON NORTHERN AND SANTA FE RAILROAD | | | PWRC |
| 14297 | ATGU | BNSF Railway | | | RSRV |
| 14298 | ATGU | BURLINGTON NORTHERN RAILROAD | | | SCAC3 |
| 14299 | ATGU | ASIA TECHNICAL GAS CO (PTE) LTD | | | SCAC4 |
| 14300 | ATGV | A TOWING | | | SCAC3 |
