| 5301 | BISG | BILLINGS SHIPPING CORP | | | SCAC3 |
| 5302 | BISI | BISCOE, D TRUCKING INC | | | SCAC3 |
| 5303 | BISK | BISHOP TRUCKING | | | SCAC3 |
| 5304 | BISK | BISMARCK LOGISTIC INC | | | SCAC4 |
| 5305 | BISL | BIESHELIVEL, ARIE | | | SCAC4 |
| 5306 | BISM | BISOM TRUCK LINE, INC | | | SCAC3 |
| 5307 | BISO | BILLINGS STORAGE & WAREHOUSE CO | | | SCAC3 |
| 5308 | BISQ | BISON TRANSPORTATION | | | SCAC4 |
| 5309 | BISR | BEEF INTERNACIONAL SA DE CV | | | SCAC4 |
| 5310 | BISS | BISSON MOVING AND STORAGE COMPANY | | | SCAC3 |
| 5311 | BISS | BISSON MOVING AND STORAGE | | | SCAC4 |
| 5312 | BIST | BI-STATE CARRIERS, INC | | | SCAC3 |
| 5313 | BIST | BIG SKY TRUCKING AND HOTSHOT SERVIC | | | SCAC4 |
| 5314 | BIST | Metro Transit (Bi-State Development Agency) | City: St. Louis | USA | TRAFFIC |
| 5315 | BISU | BERMUDA INTERNATIONAL SHIPPING LTD | | BM | BIC |
| 5316 | BISU | BERMUDA INTERNATIONAL SHIPPING LTD | | | SCAC3 |
| 5317 | BISU | BERMUDA INTERNATIONAL SHIPPING, LTD | | | SCAC4 |
| 5318 | BISV | B I SERVICES | | | SCAC3 |
| 5319 | BISW | BISHOP WAREHOUSING AND DISTRIBUTION | | | SCAC3 |
| 5320 | BISW | BYATT INTERNATIONAL SA | | | SCAC4 |
| 5321 | BISX | Brandenburg Industrial Service Co. | added 1/1999; 7/2000-7/2005 | | NAKINA |
| 5322 | BISX | Brandenburg Industrial Service Co. | added 1/99; 7/2000 | | NRHS |
| 5323 | BISX | BRANDENBURG INDUSTRIAL SERVICE CO. | | | PWRC |
| 5324 | BISX | Brandenburg Industrial Service | | | RSRV |
| 5325 | BISY | BITTERROOT INTERNATIONAL SYSTEMS IN | | | SCAC3 |
| 5326 | BISZ | BEAR ISLAND PAPER | | | PWRC |
| 5327 | BIT | Northeast Aviation, Inc. | Callsign: Run Bitty, | USA | AVCODES |
| 5328 | BIT | BURKE INTERNATIONAL TOURS INC | | | SCAC4 |
| 5329 | BITA | B. I. TRANSPORTATION, INC | | | SCAC3 |
| 5330 | BITA | B I TRANSPORTATION INC | | | SCAC4 |
| 5331 | BITB | BIG IRON TRANSPORTATION COMPANY | | | SCAC3 |
| 5332 | BITB | BRITTON TRANSPORT INC (BROKERAGE DI | | | SCAC4 |
| 5333 | BITC | BYRNES INTERSTATE TRANSPORTATION CO | | | SCAC3 |
| 5334 | BITC | BYRNES INTERSTATE TRANSPORTATION CO | | | SCAC4 |
| 5335 | BITD | BRITTON TRANSPORT, INC. | | | SCAC3 |
| 5336 | BITD | BRITTON TRANSPORT INC | | | SCAC4 |
| 5337 | BITE | BENISON INTL TRANS INC | | | SCAC4 |
| 5338 | BITF | BIG T TRANSFER INC | | | SCAC3 |
| 5339 | BITG | B I T | | | SCAC3 |
| 5340 | BITI | BOB-IRV TRUCKING CORP | | | SCAC3 |
| 5341 | BITJ | BRIDLE TRUCKING | | | SCAC3 |
| 5342 | BITL | BISHER FREIGHT SERVICE | | | SCAC3 |
| 5343 | BITL | BISHER FREIGHT SERVICE | | | SCAC4 |
| 5344 | BITM | BIRDS TRUCKING | | | SCAC3 |
| 5345 | BITM | BITMEX EXPRESS S A DE C V | | | SCAC4 |
| 5346 | BITN | B I T INC | | | SCAC3 |
| 5347 | BITO | BIG TEX DELIVERY SERVICE INC | | | SCAC3 |
| 5348 | BITO | BIG TEX | | | SCAC4 |
| 5349 | BITP | BAINBRIDGE INTERNTATIONAL TRANSPORT | | | SCAC3 |
| 5350 | BITQ | BIG B TRANSPORTATION INC | | | SCAC3 |
| 5351 | BITR | BRENNAN INTERNATIONAL | | | SCAC3 |
| 5352 | BITR | BRENNAN INTERNATIONAL TRANSPORT | | | SCAC4 |
| 5353 | BITS | BILLET TRANSPORTATION INC | | | SCAC4 |
| 5354 | BITT | BIG THREE (3) TRANSPORTATION INC | | | SCAC3 |
| 5355 | BITU | MEEBERG CONTAINER SERVICE BV | | NL | BIC |
| 5356 | BITU | MEEBERG CONTAINER SERVICE BV | | | SCAC4 |
| 5357 | BITV | BRITOM TRUCKING INC | | | SCAC3 |
| 5358 | BITW | BILLS TRANSFER INC | | | SCAC3 |
| 5359 | BITY | Penn Eastern Rail Lines Inc. | added 4/1998; 7/2000-7/2005; eliminated 10/2007 | | NAKINA |
| 5360 | BITY | Bristol Industrial Terminal Ry., Inc. | added 10/1992; 1/1994; eliminated 1/1996 | | NAKINA |
| 5361 | BITY | Bristol Industrial Terminal Ry., Inc. | added 10/92; 1/94; eliminated 1/96 | | NRHS |
| 5362 | BITY | Penn Eastern Rail Lines Inc. | added 4/98; 7/2000 | | NRHS |
| 5363 | BITY | PENN EASTERN RAIL LINES INC [BRISTOL INDUSTRIAL TERMINAL RWY] | | | PWRC |
| 5364 | BITY | Bristol Industrial Terminal Railway (Penn Eastern Rail Lines) | | | RSRV |
| 5365 | BIV | Aviaservice | Callsign: Aviaservice, | GE | AVCODES |
| 5366 | BIV | Aviaservice | | | ICAO1 |
| 5367 | BIVB | BIV Bau-u Jndustriegeräte Vertriebs GmbH | | DE | VKM |
| 5368 | BIVM | BARLIN INVESTMENTS INC | | | SCAC3 |
| 5369 | BIVR | BIV, ROY G TRANSPORT CO | | | SCAC3 |
| 5370 | BIWC | BALTIMORE INTERNATIONAL WAREHOUSE C | | | SCAC3 |
| 5371 | BIWC | BALTIMORE INTERNATIONAL | | | SCAC4 |
| 5372 | BIWD | BIWER DISTRIBUTING | | | SCAC3 |
| 5373 | BIWQ | BAILEY WAREHOUSE LTD | | | SCAC3 |
| 5374 | BIWS | BI WEST TRANSLINES LTD | | | SCAC3 |
| 5375 | BIWT | BINSWANGER TRUCKING | | | SCAC3 |
| 5376 | BIWY | BIG WYOMING TRUCKING INC | | | SCAC3 |
| 5377 | BIWY | BIG WYOMING TRUCKING INC | | | SCAC4 |
| 5378 | BIX | Braathens International Airways AB | IATA: TT, Callsign: Sun Trip, | S | AVCODES |
| 5379 | BIX | Atchison Bridge Co., Inc. | added 7/1956; 10/1957-4/1970; eliminated 10/1972 | | NAKINA |
| 5380 | BIX | Atchison Bridge Co., Inc. | added 7/56; 10/57-4/70; eliminated 10/72 | | NRHS |
| 5381 | BIX | ATCHISON BRIDGE CO., INC. | | | PWRC |
| 5382 | BIXL | BIXLER, CURTIS TRUCKING | | | SCAC3 |
| 5383 | BIXQ | BEAUFORT INTERLINE EXPRESS | | | SCAC3 |
| 5384 | BIZ | Bizjet Ltd. | Callsign: Bizz, | GB | AVCODES |
| 5385 | BIZ | Bizjet de Mexico, S.A. de C.V. | Callsign: Bizmex, | MEX | AVCODES |
| 5386 | BIZ | Bizjet Ltd | | | ICAO1 |
| 5387 | BIZK | BizkaiBus | City: Bilbao | E | TRAFFIC |
| 5388 | BJ | Nouvelair Tunisie | ICAO: LBT, Callsign: Nouvelair, Designator reinstated by IATA. Name changed from Air Liberte Tunisie w.e.f. 01 September 1996. | TN | AVCODES |
| 5389 | BJ | British Caribbean Airways | ICAO: BCL, | GB | AVCODES |
| 5390 | BJ | Air Liberte Tunisie | ICAO: LBT, Callsign: Nouvellair, Change of Name to Nouvelair Tunisie w.e.f. 01 September 1996. Established in 1989. Commenced operations on 21 March 1990. | TN | AVCODES |
| 5391 | BJ | Santa Barbara Airlines, C.A. | ICAO: BBR, Callsign: Santa Barbara, IATA designator changed to S3 | YV | AVCODES |
| 5392 | BJ | Bakhtar Afghan Airlines | | AFG | AVCODES |
| 5393 | BJ | Bakhtar Afghan Airlines | ICAO: BYJ, Callsign: Bakhtar, | AFG | AVCODES |
| 5394 | BJ | Bora Jet Havacilik Tasimacilik Ucak | ICAO: BRJ, IATA designator changed to YB | TR | AVCODES |
| 5395 | BJ | Den Bornholmske Jernbane | 1901 - 1952 | DK | jernbanen.dk |
| 5396 | BJ | Bergslagernas Järnvägar (Bergslagsbanan) | 1875 - 1948 | S | svenska-lok.se |
| 5397 | BJ | Den Bornholmske Jernbane | 1901 - 1952 | DK | TRAFFIC |
| 5398 | BJ | Bergslagernas Järnvägssällskap | | SE | VKM |
| 5399 | BJA | Baja Air, S.A. de C.V. | Callsign: Baja Air, | MEX | AVCODES |
| 5400 | BJA | Baja Air | | | ICAO1 |
