| 10401 | BRXQ | BRAR EXPRESS | | | SCAC4 |
| 10402 | BRXR | BEAVER EXPRESS INC | | | SCAC3 |
| 10403 | BRXR | BEAVEX INC | | | SCAC4 |
| 10404 | BRXS | BRAUNS EXPRESS INC | | | SCAC3 |
| 10405 | BRXT | BROTHERS EXPRESS INC | | | SCAC4 |
| 10406 | BRXU | BOXRENT LTD | | | SCAC3 |
| 10407 | BRXV | B & R ECKELS TRANSPORT | | | SCAC4 |
| 10408 | BRXW | BROXWOOD HOLDINGS INC | | | SCAC3 |
| 10409 | BRY | Brymon European Airways | Callsign: Brymon, | GB | AVCODES |
| 10410 | BRY | Brymon Aviation Ltd. d/b/a Brymon Airways | IATA: BC, Callsign: Brymon, Designator BC recalled by IATA | GB | AVCODES |
| 10411 | BRY | Brymon Aviation Ltd. d/b/a Brymon Airways | IATA: PM, Callsign: Brymon, IATA designator changed to BC | GB | AVCODES |
| 10412 | BRY | Brymon Airways | Callsign: Brymon, Merged with British Regional Airlines to form CitiExpress using ICAO code BRT on 31 January 2002. | GB | AVCODES |
| 10413 | BRY | Burundayavia, JSC | Callsign: Burair, | KZ | AVCODES |
| 10414 | BRY | Burundayavia | | | ICAO1 |
| 10415 | BRY | BRADFORD RAILWAY | | | PWRC |
| 10416 | BRY | Brymon Airways | | GB | TRAFFIC |
| 10417 | BRYC | BLUE RIDGE CARRIERS INC | | | SCAC3 |
| 10418 | BRYC | BERRY CONTRACTING INC | | | SCAC4 |
| 10419 | BRYE | BRYANT, ROBERT L | | | SCAC3 |
| 10420 | BRYE | BRYANT FREIGHT LLC | | | SCAC4 |
| 10421 | BRYG | BARRY INC | | | SCAC3 |
| 10422 | BRYG | BRYANT TRANSPORT | | | SCAC4 |
| 10423 | BRYH | BRITTANY LINES INC | | | SCAC3 |
| 10424 | BRYH | BARRY TRUCKING | | | SCAC4 |
| 10425 | BRYI | BRYANT TRANSPORTATION COMPANY INC | | | SCAC3 |
| 10426 | BRYJ | BARRY, W J HORSE TRANSPORTATION INC | | | SCAC3 |
| 10427 | BRYJ | BARRY, W J HORSE TRANSPORTATION INC | | | SCAC4 |
| 10428 | BRYK | BRYANS TRUCKING INC | | | SCAC3 |
| 10429 | BRYK | BRYANS TRUCKING INC | | | SCAC4 |
| 10430 | BRYL | BARY INC | | | SCAC3 |
| 10431 | BRYM | BARRYS MOVING AND STORAGE CO, INC | | | SCAC3 |
| 10432 | BRYM | BERLIN, SHIRLEY | | | SCAC4 |
| 10433 | BRYN | BRYAN TRUCK LINE, INC | | | SCAC3 |
| 10434 | BRYN | BRYAN TRUCK LINE, INC | | | SCAC4 |
| 10435 | BRYO | BRINEY, OTIS | | | SCAC3 |
| 10436 | BRYQ | BRYAN TRANSFER & STORAGE CO INC | | | SCAC3 |
| 10437 | BRYR | BRYSON MACHINERY MOVERS & RIGGERS, INC | | | SCAC3 |
| 10438 | BRYS | BRYSON INDUSTRIAL SERVICES INC | | | SCAC3 |
| 10439 | BRYS | BRYS LOGISTICS LLC | | | SCAC4 |
| 10440 | BRYV | BOOTHBAY RAILWAY VILLAGE | | | PWRC |
| 10441 | BRYV | BRYANS SERVICES | | | SCAC3 |
| 10442 | BRYW | BELREY TRUCKING CO | | | SCAC3 |
| 10443 | BRZ | Samara Airlines | IATA: E5, Callsign: Beryoza, IATA Prefix: 906, | RUS | AVCODES |
| 10444 | BRZ | Bravo Air Ltd. | Callsign: Gremair, | GE | AVCODES |
| 10445 | BRZ | Samara Airlines | IATA: E5 | | ICAO1 |
| 10446 | BRZ | BRISTOL | | | PWRC |
| 10447 | BRZB | BRUZZONE CONSOLIDATION INC | | | SCAC4 |
| 10448 | BRZC | BRZECZEK, CHESTER | | | SCAC3 |
| 10449 | BRZD | BEAVER RIVER DISTRIBUTION INC | | | SCAC4 |
| 10450 | BRZE | BRAZEAU TRUCKING INC | | | SCAC3 |
| 10451 | BRZE | BRIZUELAS TRUCKING | | | SCAC4 |
| 10452 | BRZF | BREEZE FREIGHT LINES | | | SCAC3 |
| 10453 | BRZG | BREEZE COURIER GROUP INC | | | SCAC3 |
| 10454 | BRZI | BRUYNZEEL TRUCKING INC | | | SCAC3 |
| 10455 | BRZK | BRUNZLICK, RICHARD B INC | | | SCAC3 |
| 10456 | BRZK | BRUNZLICK TRUCKING | | | SCAC4 |
| 10457 | BRZL | BRAZIL TRUCKING INC | | | SCAC4 |
| 10458 | BRZM | BARZ NORTHAMERICAN #1239 | | | SCAC3 |
| 10459 | BRZN | BARRAZA TRUCKING | | | SCAC3 |
| 10460 | BRZO | BRAZELTON TRUCKING | | | SCAC3 |
| 10461 | BRZP | BRAZTRANS | | | SCAC4 |
| 10462 | BRZQ | BRAZEAU, HOWARD J | | | SCAC3 |
| 10463 | BRZR | BRAZELL TRUCKING INC | | | SCAC4 |
| 10464 | BRZS | BRUZZONE SHIPPING INC | | | SCAC3 |
| 10465 | BRZS | BRASE TRANSPORT LLC | | | SCAC4 |
| 10466 | BRZT | BRAZOS TRANSPORT CO | | | SCAC3 |
| 10467 | BRZU | CONTAINER EXPRESS CORPORATION | | USA | BIC |
| 10468 | BRZU | Container Express Corporation | | | RSRV |
| 10469 | BRZV | BARRAZA VALENZUELA, BENJAMIN | | | SCAC4 |
| 10470 | BS | British International Helicopters Ltd. | ICAO: BIH, Callsign: Brintel, Ceased operations. IATA designator changed from UR | GB | AVCODES |
| 10471 | BS | Busy Bee Of Norway A/S | ICAO: BEE, Callsign: Busybee, Ceased operations | N | AVCODES |
| 10472 | BS | US-Bangla Airlines Limited | ICAO: UBG, Callsign: Banglastar, Founded in 2013. Commenced operations on 17 July 2014. | BD | AVCODES |
| 10473 | BS | Birmingham Southern R.R. Co. | 4/1938-7/2005 | | NAKINA |
| 10474 | BS | Birmingham Southern R.R. Co. | 4/38-7/2000 | | NRHS |
| 10475 | BS | BIRMINGHAM SOUTHERN RAILROAD | | | PWRC |
| 10476 | BS | Birmingham Southern Railroad | | | RSRV |
| 10477 | BS | Birmingham Southern Railroad Company | | USA | TRAFFIC |
| 10478 | BS | Baneservice AS | | NO | VKM |
| 10479 | BS&C | Big Sandy & Cumberland R.R. Co. | 7/1923-7/1930 | | NAKINA |
| 10480 | BS&C | Big Sandy & Cumberland R.R. Co. | 23-Jul | | NRHS |
| 10481 | BS&C | BIG SANDY & CUMBERLAND RAILROAD CO. | | | PWRC |
| 10482 | BS&K | Big Sandy & Kentucky River Ry. Co. | 7/1923-7/1930 | | NAKINA |
| 10483 | BS&K | Big Sandy & Kentucky River Ry. Co. | 23-Jul | | NRHS |
| 10484 | BS&K | BIG SANDY & KENTUCKY RIVER RWY. CO. | | | PWRC |
| 10485 | BSA | Ecole D'aviation Civile | Callsign: CAS Belgium, Founded in 1953. Merged in CAE in 2008. | B | AVCODES |
| 10486 | BSA | Air Bissau International Lda | Callsign: Bissau International, | GW | AVCODES |
| 10487 | BSAB | BOSCOS AUTOBODY | | | SCAC3 |
| 10488 | BSAB | BROWN, KEITH EXPRESS INC | | | SCAC4 |
| 10489 | BSAC | BULKSTAR SHIPPING CORP | | | SCAC3 |
| 10490 | BSAD | BEST AIR DELIVERY INC | | | SCAC3 |
| 10491 | BSAF | BAYSHORE AIR FREIGHT INC | | | SCAC3 |
| 10492 | BSAG | BRUNSWICK SHIP AGENCY INC | | | SCAC3 |
| 10493 | BSAG | BOWLING GREEN LOGISTICS INC | | | SCAC4 |
| 10494 | BSAG | Bremer Straßenbahn AG | City: Bremen | D | TRAFFIC |
| 10495 | BSAG | Bremer Straßenbahn SG | | DE | VKM |
| 10496 | BSAK | BIG SPRINGS TRUCKING INC | | | SCAC4 |
| 10497 | BSAO | BASCOS AUTO SALES | | | SCAC3 |
| 10498 | BSAO | BASIC ENTERPRISE INC | | | SCAC4 |
| 10499 | BSAQ | BARR-STALFORT CO | | | SCAC3 |
| 10500 | BSAR | BASARABA TRUCKING LTD | | | SCAC4 |
