| 6401 | BLE | Blue Line | | | ICAO1 |
| 6402 | BLE | Bessemer & Lake Erie R.R. Co. | 4/1970-7/2005 | | NAKINA |
| 6403 | BLE | (B&LE) Bessemer & Lake Erie R.R. Co. | 4/1970 | | NAKINA |
| 6404 | BLE | (B&LE) Bessemer & Lake Erie R.R. Co. | Apr-70 | | NRHS |
| 6405 | BLE | Bessemer & Lake Erie R.R. Co. | 4/70-7/2000 | | NRHS |
| 6406 | BLE | Butzbach-Licher Eisenbahn AG | Butzbach (HLB-Gruppe) | D | privat-bahn.de |
| 6407 | BLE | BESSEMER & LAKE ERIE RR (U.S.STEEL CORP. RAILROADS) | | | PWRC |
| 6408 | BLE | Bessemer and Lake Erie Railroad | | | RSRV |
| 6409 | BLE | Butzbach - Licher Eisenbahn | | D | TRAFFIC |
| 6410 | BLE | Butzbach-Licher Eisenbahnfreunde e.V | | DE | VKM |
| 6411 | BLEB | BLUEBONNET TRANSIT INC | | | SCAC3 |
| 6412 | BLEC | BLUE LINE EXPRESS | | | SCAC3 |
| 6413 | BLED | BLEDSOE, W M AND SONS INC | | | SCAC3 |
| 6414 | BLED | BELLA- ENTERPRISES LTD | | | SCAC4 |
| 6415 | BLEE | BLUE EXPRESS TRANSPORTATION | | | SCAC3 |
| 6416 | BLEF | BELLE FOURCHE PIPE LINE COMPANY | | | SCAC3 |
| 6417 | BLEF | BERNARD, LAURENT ET FILS INC | | | SCAC4 |
| 6418 | BLEG | BLOMBERG, EMIL F | | | SCAC3 |
| 6419 | BLEI | BOLEA OIL | | | SCAC4 |
| 6420 | BLEL | B-LINE EXPRESS LIMITED | | | SCAC3 |
| 6421 | BLEM | BUSHIE, LEWIS | | | SCAC4 |
| 6422 | BLEN | BLUE LAGOON ENTERPRISE INC | | | SCAC4 |
| 6423 | BLEO | B-LINE MOTOR SERVICES | | | SCAC3 |
| 6424 | BLEP | B LINE EXPRESS INC | | | SCAC3 |
| 6425 | BLEQ | BLUE RIBBON | | | SCAC3 |
| 6426 | BLER | BLUE RIDGE EXPRESS TRUCKING LLC | | | SCAC4 |
| 6427 | BLER | Bessemer & Lake Erie Railroad | Real: BLE | USA | TRAFFIC |
| 6428 | BLES | BRASS LEASING INC | | | SCAC3 |
| 6429 | BLET | BLUE CHIP TRANSIT INC | | | SCAC3 |
| 6430 | BLET | B-LINE EXPRESS | | | SCAC4 |
| 6431 | BLETR | Blekingetrafiken | | SE | VKM |
| 6432 | BLEU | BELINKA PERKEMIJA D.O.O. | | SLO | BIC |
| 6433 | BLEU | BELINKA KEMICNA INDUSTRIJA ROLJUBLJ | | | SCAC3 |
| 6434 | BLEU | BELINKA PERKEMIJA D O O | | | SCAC4 |
| 6435 | BLEV | BLUE VALLEY TRUCKING INC | | | SCAC3 |
| 6436 | BLEV | BAR-L EXPRESS | | | SCAC4 |
| 6437 | BLEW | BAILEY WEST INC | | | SCAC4 |
| 6438 | BLEY | BAILEY, T A INC | | | SCAC3 |
| 6439 | BLF | Bulgarian Lucky Flight | Callsign: Lucky Air, | BG | AVCODES |
| 6440 | BLF | Bee Line Airlines | Callsign: Beefleet, | USA | AVCODES |
| 6441 | BLF | Blue1 Oy | IATA: KF, Callsign: Bluefinn, IATA Prefix: 142, Designator KF recalled by IATA. Sold to CityJet in October 2015. Name changed from Oy Air Botnia AB. ICAO designator changed from KFB. ICAO callsign changed from Botnia | FIN | AVCODES |
| 6442 | BLF | Blue1 Oy | Callsign: Bluefinn, Designator KF recalled by IATA. Sold to CityJet in October 2015. Name changed from Oy Air Botnia AB. ICAO designator changed from KFB. ICAO callsign changed from Botnia | FIN | AVCODES |
| 6443 | BLF | Blue1 | IATA: KF | | ICAO1 |
| 6444 | BLF | Blue1 Oy | | FIN | TRAFFIC |
| 6445 | BLFA | BEL FREIGHT SERVICE | | | SCAC3 |
| 6446 | BLFA | BLOQUES Y FACHADAS S A DE C V | | | SCAC4 |
| 6447 | BLFB | BLUEFIELD TRANSPORT LLC | | | SCAC4 |
| 6448 | BLFC | BLUFF CREEK INDUSTRIES | | | SCAC3 |
| 6449 | BLFC | BORDERLINE FREIGHT CO | | | SCAC4 |
| 6450 | BLFE | BLUE FLASH EXPRESS INCORPORATED | | | SCAC3 |
| 6451 | BLFE | BLUE FLASH EXPRESS INCORPORATED | | | SCAC4 |
| 6452 | BLFF | BLUE FAST FREIGHT INC | | | SCAC3 |
| 6453 | BLFF | BELL FARMS INC | | | SCAC4 |
| 6454 | BLFH | BALENSIEFEN, HAROLD | | | SCAC3 |
| 6455 | BLFI | BLACKFORD FARMS INC | | | SCAC3 |
| 6456 | BLFJ | BORDERLINE LOGISTICS INC | | | SCAC4 |
| 6457 | BLFK | BILODEAU, L FILS LTEE | | | SCAC3 |
| 6458 | BLFK | BILODEAU, L FILS LTEE | | | SCAC4 |
| 6459 | BLFL | BELLEFLOWER AG SERVICE INC | | | SCAC3 |
| 6460 | BLFL | BEAR LOGISTICS | | | SCAC4 |
| 6461 | BLFM | BLAYLOCKS FARM & RANCH | | | SCAC3 |
| 6462 | BLFM | BLAND FARMS LLC | | | SCAC4 |
| 6463 | BLFO | BLACK FOX TRANSIT | | | SCAC3 |
| 6464 | BLFO | BLF ENTERPRISES LLC | | | SCAC4 |
| 6465 | BLFQ | BLACKFORD J F | | | SCAC3 |
| 6466 | BLFQ | BLOCK FARMS | | | SCAC4 |
| 6467 | BLFS | BALLOG FARMS INC | | | SCAC4 |
| 6468 | BLFSK | BAWAG Leasing & Fleet s.r.o. | | SK | VKM |
| 6469 | BLFT | BLACKFOOT TRANSFER | | | SCAC3 |
| 6470 | BLG | Belgavia (Société de Handling) | Callsign: Belgavia, Name changed to Aviapartner | B | AVCODES |
| 6471 | BLG | Aviapartner | Callsign: Aviapartner, Name changed from Belgavia (Soci�t� de Handling) | B | AVCODES |
| 6472 | BLG | Belgavia | | | ICAO1 |
| 6473 | BLG | BLG Logistics Group AG | General partner of Bremer Lagerhaus-Gesellschaft -Aktiengesellschaft | D | TRAFFIC |
| 6474 | BLG | BLG AutoRail GmbH | | DE | VKM |
| 6475 | BLGA | BILLINGS, RAYMOND E INC | | | SCAC3 |
| 6476 | BLGA | BANDAI LOGIPAL AMERICA INC | | | SCAC4 |
| 6477 | BLGB | BOLLINGER BROTHER INC | | | SCAC3 |
| 6478 | BLGC | BOXER LEASING COMPANY INC | | | SCAC3 |
| 6479 | BLGC | BLACK LOGISTICS INC | | | SCAC4 |
| 6480 | BLGD | BLACKERT, GORDON | | | SCAC3 |
| 6481 | BLGE | BLACK GOLD EXPRESS (DIV OF SAIA MOT | | | SCAC3 |
| 6482 | BLGF | BOWLING GREEN FREIGHT INC | | | SCAC3 |
| 6483 | BLGH | BLOUCH FUEL SERVICE | | | SCAC4 |
| 6484 | BLGI | B AND L GARAGE AND TRUCKING CO | | | SCAC3 |
| 6485 | BLGJ | BLUE LAGOON MARINA INC | | | SCAC3 |
| 6486 | BLGJ | BAT LOGISTICS | | | SCAC4 |
| 6487 | BLGK | BILLIG TRUCKING INC | | | SCAC3 |
| 6488 | BLGK | BILLIG TRUCKING INC | | | SCAC4 |
| 6489 | BLGL | BELLINGER, LLOYD A | | | SCAC3 |
| 6490 | BLGM | BLOMGREM TRUCKING | | | SCAC3 |
| 6491 | BLGN | BELLINGER TRUCKING | | | SCAC3 |
| 6492 | BLGN | BELLINGER TRUCKING | | | SCAC4 |
| 6493 | BLGO | B & L TRUCKING & SONS CO INC | | | SCAC3 |
| 6494 | BLGO | BLANCHET LOGGING & LBR CO | | | SCAC4 |
| 6495 | BLGP | BARTELS TRUCKING CORP | | | SCAC3 |
| 6496 | BLGQ | BILLINGTONS TRUCK SERVICE | | | SCAC3 |
| 6497 | BLGR | BLUE & GRAY TRANSPORTATION CO., INC. | | | PWRC |
| 6498 | BLGR | BLUE & GRAY TRANSPORTATION CO., INC | | | SCAC3 |
| 6499 | BLGRT | BLG RailTec GmbH | | DE | VKM |
| 6500 | BLGS | BLAIR-GUISTI TRUCKING CO | | | SCAC3 |
