| 1301 | BBRB | Bilfinger Berger Regiobau GmbH | | DE | VKM |
| 1302 | BBRC | B-BROTHERS CARTAGE, INC | | | SCAC3 |
| 1303 | BBRD | RESERVED FOR TONY PERTICARI | | | PWRC |
| 1304 | BBRF | BBR INC | | | SCAC3 |
| 1305 | BBRF | B & B RENTALS INC | | | SCAC4 |
| 1306 | BBRG | BRISBIN, BRUCE GRAIN SERVICE | | | SCAC3 |
| 1307 | BBRH | BLUE BIRD RANCH INC | | | SCAC3 |
| 1308 | BBRH | BLUE BIRD RANCH INC | | | SCAC4 |
| 1309 | BBRI | BROWN BULB RANCH OF WASHINGTON INC | | | SCAC3 |
| 1310 | BBRI | BALFOUR BEATTY RAIL IBÉRICA S.A.U. | | ES | VKM |
| 1311 | BBRK | B & B TRUCKING INC | | | SCAC3 |
| 1312 | BBRK | B & B TRUCKING INC | | | SCAC4 |
| 1313 | BBRL | BABCOCK, B R LTD | | | SCAC3 |
| 1314 | BBRL | Balfour Beatty Rail | | UK | VKM |
| 1315 | BBRM | BUTT BROTHERS MOVING | | | SCAC3 |
| 1316 | BBRN | BERNARD BARON, INC. | | | PWRC |
| 1317 | BBRP | BOBER TRANSPORT INC | | | SCAC3 |
| 1318 | BBRP | BOBER TRANSPORT INC | | | SCAC4 |
| 1319 | BBRQ | BILLINGTON BROTHERS | | | SCAC3 |
| 1320 | BBRQ | B & B TRUCKING INC | | | SCAC4 |
| 1321 | BBRR | BURD BROTHERS INC | | | SCAC4 |
| 1322 | BBRS | BERRY BROTHERS TRUCKING | | | SCAC3 |
| 1323 | BBRSE | Balfour Beatty Rail AB | | SE | VKM |
| 1324 | BBRT | BRUNT BROS TRANSFER INC | | | SCAC3 |
| 1325 | BBRT | BRUNT BROS TRANSFER INC | | | SCAC4 |
| 1326 | BBRU | ITAKA TRANS LLC | | RUS | BIC |
| 1327 | BBRX | Bombardier Inc., Transportation Equipment Group | added 10/1996; 7/2000-7/2005 | | NAKINA |
| 1328 | BBRX | Bombardier Inc., Transportation Equipment Group | added 10/96; 7/2000 | | NRHS |
| 1329 | BBRX | BOMBARDIER INC. TRANSPORTATION EQUIPMENT GROUP | | | PWRC |
| 1330 | BBRX | Bombardier Inc. | | | RSRV |
| 1331 | BBRY | BARBER OIL CO | | | SCAC4 |
| 1332 | BBS | Beibars, CJSC | Callsign: Beibars, | KZ | AVCODES |
| 1333 | BBS | Beibars CJSC | | | ICAO1 |
| 1334 | BBS | The Bloomsburg and Sullivan R.R. Co. | 8/1920-7/1923 | | NAKINA |
| 1335 | BBS | The Bloomsburg and Sullivan R.R. Co. | 23-Jul | | NRHS |
| 1336 | BBS | *BLOOMSBERG & SULLIVAN RAILROAD CO. | | | PWRC |
| 1337 | BBS | *BRADFORD BORDELL & SMETHPORT RR (B&O) | | | PWRC |
| 1338 | BBS | BBS Brandner Bus Schwaben Verkehrs GmbH | | D | TRAFFIC |
| 1339 | BBSA | BARBAROSSA EXPRESS INC | | | SCAC4 |
| 1340 | BBSB | BUDDY BUS SERVICE INC | | | SCAC3 |
| 1341 | BBSC | BEANBAG STORAGE CO INC | | | SCAC3 |
| 1342 | BBSC | BOGGS BUILDERS SUPPLY INC | | | SCAC4 |
| 1343 | BBSD | BOISE BUILDING SOLUTIONS-DISTRIBUTI | | | SCAC4 |
| 1344 | BBSE | B TWO B (B2B) TRANSPORT MARKET LLC | | | SCAC4 |
| 1345 | BBSF | B & B SERVICES | | | SCAC4 |
| 1346 | BBSG | BOTANY BAY | | | SCAC3 |
| 1347 | BBSH | BRITESPAN BUILDING SYSTEMS INC | | | SCAC4 |
| 1348 | BBSI | B & B ASSOCIATES | | | SCAC4 |
| 1349 | BBSJ | BOUCHARD, BRIAN & SONS INC | | | SCAC4 |
| 1350 | BBSK | BOBS TRUCKING | | | SCAC3 |
| 1351 | BBSK | BAD BOYS BROKERAGE INC | | | SCAC4 |
| 1352 | BBSL | BOBTAIL SPECIALTIES | | | SCAC3 |
| 1353 | BBSL | BBS TRUCKING INC | | | SCAC4 |
| 1354 | BBSM | BOBS MOBILE HOME SERVICE | | | SCAC3 |
| 1355 | BBSM | B & B SCALE MODELS LTD | | | SCAC4 |
| 1356 | BBSN | BARBARA & SON TRUCKING CO | | | SCAC3 |
| 1357 | BBSN | BOISE BOYS TRANSPORTATION INC | | | SCAC4 |
| 1358 | BBSO | BEEBE SCHOOL TRANSPORTATION INC | | | SCAC3 |
| 1359 | BBSO | BATH BUS SERVICE | | | SCAC4 |
| 1360 | BBSP | B & B TRANSPORT | | | SCAC3 |
| 1361 | BBSP | B-BOYS SPECIAL PRODUCTS LTD | | | SCAC4 |
| 1362 | BBSQ | BLACK AND BLUE SERVICES LLC | | | SCAC4 |
| 1363 | BBSR | BOBS TRANSPORT | | | SCAC3 |
| 1364 | BBSR | BOBS SPACE RACERS INC | | | SCAC4 |
| 1365 | BBSS | BAKERS BEST SERVICES INC | | | SCAC3 |
| 1366 | BBSS | BONNIE BLUE SPECIALIZED TRANSPORTAT | | | SCAC4 |
| 1367 | BBST | BROBST TRUCKING INC | | | SCAC4 |
| 1368 | BBSU | LLC COMPANY SPECTRANSCONTAINER | | RUS | BIC |
| 1369 | BBSV | B & B SERVICES INC | | | SCAC4 |
| 1370 | BBSW | BARBER BLUE SEA LINE | | | SCAC3 |
| 1371 | BBSX | The B.B. Stroud Co. | 8/1920 | | NAKINA |
| 1372 | BBSX | The B.B. Stroud Co. (The Bradford Gasoline Co.) | 7/1923-7/1935 | | NAKINA |
| 1373 | BBSX | The Bradford Gasoline Co. | 7/1935-1/1946 | | NAKINA |
| 1374 | BBSX | Bradford Gasoline Co. | Apr-38 | | NRHS |
| 1375 | BBSX | *B. B. STROUD CO., BRADFORD GASOLINE CO. | | | PWRC |
| 1376 | BBSX | *RETIRED 03-04-91 FET (ACI0000) | | | PWRC |
| 1377 | BBSY | BARBER STEAMSHIP LINES, INC. | | | PWRC |
| 1378 | BBSY | BENNETT BUILDING SYSTEMS LLC | | | SCAC4 |
| 1379 | BBSZ | BARBER STEAMSHIP LINES, INC. | | | PWRC |
| 1380 | BBSZ | Barbar Steamship Lines | | | RSRV |
| 1381 | BBSZ | BARBER STEAMSHIP LINES, INC. | | | SCAC4 |
| 1382 | BBT | Air Bashkortostan Ltd | IATA: BQ, IATA Prefix: 894, IATA designator changed to ZU | RUS | AVCODES |
| 1383 | BBT | Air Bashkortostan Ltd | IATA: ZU, Callsign: Agydal, IATA Prefix: 894, Commenced operations on 10 April 2006. Closed down on 09 October 2013 by parent company VIM Avia. IATA designator changed from BQ* | RUS | AVCODES |
| 1384 | BBT | BBN Airlines | Callsign: Big Blue, | TR | AVCODES |
| 1385 | BBT | Air Bashkortostan | | | ICAO1 |
| 1386 | BBTA | B & B TRANSPORT & LEASE | | | SCAC3 |
| 1387 | BBTA | B-B TRANSPORTATION INC | | | SCAC4 |
| 1388 | BBTB | BURBRIDGE TRUCKING | | | SCAC3 |
| 1389 | BBTD | BIG BEAR TRANSFER LLC | | | SCAC4 |
| 1390 | BBTF | BIG BOY TRANSFER, INC | | | SCAC3 |
| 1391 | BBTF | B & B TRANSFER | | | SCAC4 |
| 1392 | BBTG | BENSON, BOB TRUCKING | | | SCAC4 |
| 1393 | BBTH | BHANDAL BROTHERS TRUCKING INC | | | SCAC4 |
| 1394 | BBTI | B & B TANK TRUCK & CONSTRUCTION INC | | | SCAC3 |
| 1395 | BBTJ | BIG BLUE TRUCKING INC | | | SCAC4 |
| 1396 | BBTK | B & B TRUCKING & STORAGE CO | | | SCAC3 |
| 1397 | BBTL | BIG DOG EQUIPMENT SALES | | | SCAC4 |
| 1398 | BBTM | B & B TRUCKING | | | SCAC3 |
| 1399 | BBTM | B & B TOOL AND MOULD LTD | | | SCAC4 |
| 1400 | BBTN | BIG BLUE TRUCKING | | | SCAC4 |
