| 301 | BAGR | BADGERLAND MOVERS INC | | | SCAC3 |
| 302 | BAGS | BAGGETT SERVICES INC | | | SCAC4 |
| 303 | BAGT | BAGGETT TRANSPORTATION COMPANY | | | SCAC3 |
| 304 | BAGT | BAGGETT TRANSPORTATION COMPANY | | | SCAC4 |
| 305 | BAGV | BAGGAGE VALET INC | | | SCAC3 |
| 306 | BAGX | Bloch & Guggenheimer, Inc. | 7/1935-4/1961; eliminated 4/1962 | | NAKINA |
| 307 | BAGX | Bags, Inc. | added 4/1985; eliminated 1/1989 | | NAKINA |
| 308 | BAGX | Bloch & Guggenheimer, Inc. | 4/38-4/61; eliminated 4/62 | | NRHS |
| 309 | BAGX | Bags, Inc. | added 4/85; eliminated 1/89 | | NRHS |
| 310 | BAGX | *BLOCH & GUGGENHEIMER, INC. | | | PWRC |
| 311 | BAGX | *BAGS INC. | | | PWRC |
| 312 | BAGX | GALLATIN STEEL COMPANY | | | SCAC4 |
| 313 | BAGY | BAGLEY, L E CO, INC | | | SCAC3 |
| 314 | BAH | The Amiri Flight | | | ICAO1 |
| 315 | BAHA | BAHAMAS | | | SCAC4 |
| 316 | BAHC | BAR B CONTRACTING INC | | | SCAC4 |
| 317 | BAHE | BAGALA-HANSEN ENTERPRISES INC | | | SCAC3 |
| 318 | BAHF | B&H FREIGHT LINE, INC | | | SCAC3 |
| 319 | BAHF | B & H FREIGHT LINE | | | SCAC4 |
| 320 | BAHH | B & S HEAVY HAULERS INC | | | SCAC3 |
| 321 | BAHI | BENTON & HOLDEN INC | | | SCAC3 |
| 322 | BAHK | B AND H TRANSPORTATION SERVICES INC | | | SCAC3 |
| 323 | BAHM | BACHMAN TRANSPORT CORPORATION | | | SCAC3 |
| 324 | BAHM | BACHMAN TRANSPORT CORPORATION | | | SCAC4 |
| 325 | BAHQ | BALL, H E MOTOR FREIGHT | | | SCAC3 |
| 326 | BAHQ | BARAICH | | | SCAC4 |
| 327 | BAHR | BAHR OIL LLC | | | SCAC4 |
| 328 | BAHS | BURNS & H & SON TRANSPORTATION | | | SCAC3 |
| 329 | BAHT | BATH TRUCKING | | | SCAC4 |
| 330 | BAHW | BAKER HI-WAY EXPRESS INC | | | SCAC3 |
| 331 | BAI | Barair, S.A. | Callsign: Barai, | E | AVCODES |
| 332 | BAI | Pueblo Bonito Air, S.A. de C.V. | Callsign: Bonito Air, | MEX | AVCODES |
| 333 | BAIA | BATTLEFORDS AIRSPRAY | | | SCAC4 |
| 334 | BAIB | BAIMBRIDGE TRANSPORT INC | | | SCAC3 |
| 335 | BAIC | BAIN, C INC | | | SCAC3 |
| 336 | BAID | BAIRD TRUCK LINES | | | SCAC3 |
| 337 | BAIE | BAILEY'S EXPRESS, INC | | | SCAC3 |
| 338 | BAIE | BAILEYS EXPRESS INC | | | SCAC4 |
| 339 | BAIF | BARNUM AIR FREIGHT | | | SCAC3 |
| 340 | BAIG | BURNSTEIN, A INTERSTATE VAN LINES I | | | SCAC3 |
| 341 | BAIH | BAY AREA INSPECTION SERVICE | | | SCAC3 |
| 342 | BAIH | BACKUP AGENTS INC | | | SCAC4 |
| 343 | BAII | BAILEY TRANSPORT INC | | | SCAC3 |
| 344 | BAIJ | BONSAI ARTS INC | | | SCAC4 |
| 345 | BAIK | BARTISON TRUCKING | | | SCAC3 |
| 346 | BAIK | BARILLAS TRUCKING INC | | | SCAC4 |
| 347 | BAIL | BAILEY TRUCKING | | | SCAC3 |
| 348 | BAIL | BAILLIE LUMBER CO INC | | | SCAC4 |
| 349 | BAIM | BONSAL AMERICAN INC | | | SCAC4 |
| 350 | BAIN | BAINBRIDGE AUTO FREIGHT, INC | | | SCAC3 |
| 351 | BAIN | BAINTER OIL SERVICE INC | | | SCAC4 |
| 352 | BAIO | BAIRD CORPORATION | | | SCAC3 |
| 353 | BAIP | BAILEY, PARKER K & SONS | | | SCAC3 |
| 354 | BAIP | BAILEY, PARKER K & SONS | | | SCAC4 |
| 355 | BAIQ | B & L MOTOR INC | | | SCAC3 |
| 356 | BAIQ | BLAST ALL INC | | | SCAC4 |
| 357 | BAIR | BARTON INTERNATIONAL INC | | | SCAC4 |
| 358 | BAIS | BAINS MOVING AND STORAGE | | | SCAC3 |
| 359 | BAIT | BRYMAK & ASSOCIATES INC | | | SCAC4 |
| 360 | BAIV | BRISENO AZTECA IMPORTS | | | SCAC4 |
| 361 | BAIX | Bona Allen, Inc. | 7/1923-7/1930 | | NAKINA |
| 362 | BAIX | BONA ALLEN, INC. | | | PWRC |
| 363 | BAIY | BAILEY TRANSIT INC | | | SCAC4 |
| 364 | BAJ | Baker Aviation, Inc. | IATA: 8Q, Callsign: Baker Aviation, Designator 8Q* recalled by IATA. Designator 8Q* reinstated by IATA | USA | AVCODES |
| 365 | BAJ | Baker Aviation, Inc. | Callsign: Baker Aviation, Designator 8Q* recalled by IATA | USA | AVCODES |
| 366 | BAJ | Baker Aviation, Inc. | Callsign: Baker Aviation, Designator 8Q* recalled by IATA. Designator 8Q* reinstated by IATA | USA | AVCODES |
| 367 | BAJ | Baker Aviation | IATA: 8Q* | | ICAO1 |
| 368 | BAJ | Borås - Alvesta Järnväg | 1902 - 1940 | S | svenska-lok.se |
| 369 | BAJA | BAJA SHELTER SA DE CV | | | SCAC4 |
| 370 | BAJB | BARBOUR, JOHN B TRUCKING COMPANY | | | SCAC3 |
| 371 | BAJC | BARAJAS CUSTOMS BROKERAGE CO | | | SCAC4 |
| 372 | BAJF | BAYNES, A J FREIGHT CONTRACTORS LTD | | | SCAC4 |
| 373 | BAJH | BAIRD, JOHN | | | SCAC3 |
| 374 | BAJI | B & J TRANSPORTATION INC | | | SCAC3 |
| 375 | BAJJ | BALDERSON, JAMES J INC | | | SCAC3 |
| 376 | BAJK | BAILEY, JACK D TRUCKING INC | | | SCAC3 |
| 377 | BAJK | BAJA TRUCKING L C | | | SCAC4 |
| 378 | BAJL | B & J LEASING INC | | | SCAC3 |
| 379 | BAJN | B & J TRUCKING | | | SCAC3 |
| 380 | BAJO | B AND J TRUCK LINE | | | SCAC3 |
| 381 | BAJP | BART, N J CORP | | | SCAC3 |
| 382 | BAJQ | BAILEY, JOSEPH HENRY | | | SCAC3 |
| 383 | BAJR | BAXTER, A J & CO | | | SCAC3 |
| 384 | BAJR | BAJA FURNITURE S A DE C V (MX-31306 | | | SCAC4 |
| 385 | BAJS | BARO, JESSE, INC | | | SCAC3 |
| 386 | BAJT | BAJA TRANSPORT | | | SCAC4 |
| 387 | BAJV | BAGGER-EN AANNEMINGSMAATSCHAPPIJ VA | | | SCAC4 |
| 388 | BAJY | BARDEN, A J TRUCKING | | | SCAC4 |
| 389 | BAK | Blackhawk Airways, Inc. | IATA: BB, Callsign: Blackhawk, Ceased operations. | USA | AVCODES |
| 390 | BAK | Blackhawk Airways | | | ICAO1 |
| 391 | BAK | Bakony Volán | | H | TRAFFIC |
| 392 | BAKA | BAKER TRANSPORTATION INC | | | SCAC4 |
| 393 | BAKB | BAKER, BOB MOVING | | | SCAC3 |
| 394 | BAKB | B A TRUCKING | | | SCAC4 |
| 395 | BAKC | BAKER, T G TRUCKING INC | | | SCAC4 |
| 396 | BAKE | BAKER TRUCKING | | | SCAC4 |
| 397 | BAKF | BATY, FRANK INC | | | SCAC3 |
| 398 | BAKF | BAR SEVENTY ONE (71) LAND & | | | SCAC4 |
| 399 | BAKG | BARKIN TRUCKING CORP | | | SCAC3 |
| 400 | BAKG | BARNES TRUCKING INC | | | SCAC4 |
