| 301 | CADQ | CARON & CARON TRUCKING | | | SCAC4 |
| 302 | CADS | CAROLINA ASSEMBLY AND DISTRIBUTION | | | SCAC3 |
| 303 | CADS | CALIFORNIA DELIVERY SERVICE INC | | | SCAC4 |
| 304 | CADU | MAERSK A/S | | DK | BIC |
| 305 | CADU | CALMEDIA LINE S.P.A. | | | SCAC3 |
| 306 | CADU | COSTA CONTAINER LINES SPA | | | SCAC4 |
| 307 | CADU | Carl Dume Ingenierbau GmbH + Co. KG | | DE | VKM |
| 308 | CADV | CAMPBELL TRUCK LINE | | | SCAC3 |
| 309 | CADW | CHILDS, ARTHUR M JR & DOROTHY | | | SCAC3 |
| 310 | CADX | CAN DO, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 311 | CADX | C.E. Cadieux | 7/1935-1/1941 | | NAKINA |
| 312 | CADX | Cadillac Tank Car Co. | 4/1947-4/1970; eliminated 4/1971 | | NAKINA |
| 313 | CADX | C.E. Cadieux | Apr-38 | | NRHS |
| 314 | CADX | Cadillac Tank Car Co. | 1/52-4/70; eliminated 4/71 | | NRHS |
| 315 | CADX | CAN DO, Inc. | Jul-00 | | NRHS |
| 316 | CADX | *CADILLAC TANK CAR CO. | | | PWRC |
| 317 | CADX | +CAN DO INC. | | | PWRC |
| 318 | CADX | Cando Corporation | | | RSRV |
| 319 | CADX | Cando Corporation | | | RSRV |
| 320 | CADX | CADILLAC TANK CAR CO | | | SCAC3 |
| 321 | CADX | CAN DO INC | | | SCAC4 |
| 322 | CADY | CALIFORNIA DELIVERY SERVICE | | | SCAC3 |
| 323 | CAE | Colibri Aviation Reg'd | Callsign: Hummingbird, | CDN | AVCODES |
| 324 | CAE | Centrafrique Air Express | Callsign: Express Centraf, | RCA | AVCODES |
| 325 | CAE | Colibri Aviation | | | ICAO1 |
| 326 | CAE | CHICAGO AURORA & ELGIN RWY | | | PWRC |
| 327 | CAEA | CAESAR TRANSPORT INC | | | SCAC4 |
| 328 | CAEB | CAN-AM EXPRESS INC | | | SCAC3 |
| 329 | CAEC | CARTER TRUCKING DIVISION | | | SCAC3 |
| 330 | CAEC | CASHMAN EQUIPMENT CORP | | | SCAC4 |
| 331 | CAED | C & A TRANSPORTATION | | | SCAC4 |
| 332 | CAEE | CARTER ENTERPRISES INC | | | SCAC3 |
| 333 | CAEF | CAROLINA EAST FURNITURE TRANSPORT I | | | SCAC3 |
| 334 | CAEF | CARGO LOGISTICS | | | SCAC4 |
| 335 | CAEG | Coffeen and Western R.R. | 7/2005 | | NAKINA |
| 336 | CAEG | COFFEEN & WESTERN RAILROAD | | | PWRC |
| 337 | CAEG | Coffeen and Western Railroad (Ameren) | | | RSRV |
| 338 | CAEG | CARGO EXPORT | | | SCAC3 |
| 339 | CAEG | COFFEEN AND WESTERN RAILROAD | | | SCAC4 |
| 340 | CAEH | C A TRANSPORT INC | | | SCAC4 |
| 341 | CAEJ | CAINS AUTO TRANSPORT INC | | | SCAC4 |
| 342 | CAEK | CARTER, C A INC | | | SCAC3 |
| 343 | CAEL | CAROSAN ENTERPRISES LTD | | | SCAC4 |
| 344 | CAEM | CARE TRANSPORT INC | | | SCAC3 |
| 345 | CAEM | CAMERON TRUCKING LLC | | | SCAC4 |
| 346 | CAEN | CARLTON TRANSPORTATION INC | | | SCAC3 |
| 347 | CAEN | | City: Caen | F | TRAFFIC |
| 348 | CAEO | C-E TRANSPORT | | | SCAC3 |
| 349 | CAEQ | CAROLINA TRANSPORT EXPRESS INC | | | SCAC3 |
| 350 | CAEQ | COLBY FARM | | | SCAC4 |
| 351 | CAER | CARTER TRANSFER INC | | | SCAC3 |
| 352 | CAET | C & E TRUCKING CORPORATION | | | SCAC3 |
| 353 | CAET | CALIFORNIA EXPRESS TRANSPORT INC | | | SCAC4 |
| 354 | CAEU | CARU CONTAINERS BV | | NL | BIC |
| 355 | CAEV | CARLOS TRUCKING | | | SCAC4 |
| 356 | CAEW | CATONI TRUCKING | | | SCAC4 |
| 357 | CAEX | Canadian Arsenals Ltd. | 1/1952-7/1965; eliminated 1/1966 | | NAKINA |
| 358 | CAEX | Canadian Arsenals Ltd. | 1/52-7/65; eliminated 1/66 | | NRHS |
| 359 | CAEX | CANADIAN ARSENALS, LTD. | | | PWRC |
| 360 | CAEY | CASEY TRANSPORTATION, INC | | | SCAC3 |
| 361 | CAEY | CHARIOT MEDIA INC | | | SCAC4 |
| 362 | CAEZ | CARGILL ELEVATOR | | | PWRC |
| 363 | CAF | Consorzio Armatori Ferroviario S.C.p.A. | | IT | VKM |
| 364 | CAFA | CLT AIR FREIGHT CARRIER LLC | | | SCAC4 |
| 365 | CAFC | CRESCENT AIR FREIGHT LTD | | | SCAC4 |
| 366 | CAFCV | CONSTRUCCIONES Y AUXILIAR DE FERROCARRILES | | ES | VKM |
| 367 | CAFD | C A S A | | | SCAC3 |
| 368 | CAFD | CONAGRA FOODS RAIL DIVISION (DIV OF | | | SCAC4 |
| 369 | CAFE | CALIFORNIA CHARTER | | | SCAC3 |
| 370 | CAFE | CA C-STORES INC | | | SCAC4 |
| 371 | CAFF | CANAL FUEL COMPANY | | | SCAC4 |
| 372 | CAFG | C & F TRUCKING INC | | | SCAC3 |
| 373 | CAFJ | CAMIONS ALAIN AND REGIS DUBOIS | | | SCAC4 |
| 374 | CAFK | CARTER FREIGHT LINES INC | | | SCAC3 |
| 375 | CAFK | CORNERSTONE RELOCATION GROUP | | | SCAC4 |
| 376 | CAFL | CAFLISCH TRUCKING & CONSTRUCTIONS I | | | SCAC4 |
| 377 | CAFM | CALIFORNIA FREIGHT SYSTEMS | | | SCAC3 |
| 378 | CAFO | COMMERCIAL AIRFREIGHT FORWARDERS | | | SCAC3 |
| 379 | CAFO | CONTAINER TRANSPORT INC | | | SCAC4 |
| 380 | CAFQ | C & A FREIGHT LINES | | | SCAC3 |
| 381 | CAFR | CRT TRANSPORTATION INC | | | SCAC4 |
| 382 | CAFS | CAN AM FORWARDING INC | | | SCAC3 |
| 383 | CAFS | CANADIAN CLIMATROL SYSTEMS LTD | | | SCAC4 |
| 384 | CAFT | CAPITAL AIR FREIGHT INC | | | SCAC3 |
| 385 | CAFT | CAPITAL AIR FREIGHT INC | | | SCAC4 |
| 386 | CAFU | CISAF SRL | | I | BIC |
| 387 | CAFU | BAY CITIES LEASING COMPANY | | | PWRC |
| 388 | CAFU | Bay Cities Leasing | | | RSRV |
| 389 | CAFU | BAY CITIES LEASING COMPANY | | | SCAC3 |
| 390 | CAFW | CAL AIR FORWARDERS INC | | | SCAC3 |
| 391 | CAFY | CARTER, FAIRLEY TRUCK LEASING MANAG | | | SCAC3 |
| 392 | CAFZ | CARGILL FERTILIZER | | | PWRC |
| 393 | CAG | China National Aviation Corporation (CNAC) | IATA: F6, Callsign: China National, IATA Prefix: 619, | PRC | AVCODES |
| 394 | CAG | Club Acrobatico Mediterraneo | | E | AVCODES |
| 395 | CAG | China National Aviation Corporation | | | ICAO1 |
| 396 | CAG | CURNETT, AGNES G | | | SCAC4 |
| 397 | CAGA | COMPANIA ARGENTINA DE TRANSPORTES | | | SCAC3 |
| 398 | CAGA | CARLISLE, GARY INC | | | SCAC4 |
| 399 | CAGC | CAN AM LOGISTICS | | | SCAC4 |
| 400 | CAGD | CLEAN AG AIR INC | | | SCAC4 |
