| 1 | BLB | Atlantic Air Bvi | Callsign: Air BVI, | GB | AVCODES |
| 2 | BLB | Blue Bird Aviation Co. Ltd. | Callsign: Bluebird Sudan, | SUD | AVCODES |
| 3 | BLB | Blue Bird Aviation | | | ICAO1 |
| 4 | BLB | Burgenlandbahn GmbH | Zeitz (Tochter von KEG und DB Regio) | D | privat-bahn.de |
| 5 | BLB | Berchtesgadener Land Bahn GmbH | Freilassing | D | privat-bahn.de |
| 6 | BLB | Berchtesgadener Land Bahn | | D | TRAFFIC |
| 7 | BLB | Burgenlandbahn AG | | DE | VKM |
| 8 | BLBA | BALBOA TRANSFER AND STORAGE | | | SCAC3 |
| 9 | BLBA | BLANQUET SANCHEZ, RAFAEL ALBERTO | | | SCAC4 |
| 10 | BLBB | BLUE RIBBON DELIVERY INC | | | SCAC3 |
| 11 | BLBC | BILDERBACK, RICHARD E | | | SCAC3 |
| 12 | BLBD | BLACK BROS & SON DISTRIBUTING INC | | | SCAC3 |
| 13 | BLBD | BLACK BROS & SON DISTRIBUTING INC | | | SCAC4 |
| 14 | BLBE | BELBETA SHIPPING COMPANY S A | | | SCAC3 |
| 15 | BLBE | BLUEBERRY INCORPORATED | | | SCAC4 |
| 16 | BLBF | BLOOD, BERT R | | | SCAC3 |
| 17 | BLBF | BELOIN, ERIC ET GEORGES INC | | | SCAC4 |
| 18 | BLBG | BLASSBERG, J M CORPORATION | | | SCAC3 |
| 19 | BLBG | BOSMA POULTRY INC | | | SCAC4 |
| 20 | BLBH | BRECHT LOGISTICS INC | | | SCAC4 |
| 21 | BLBI | BURNS, L B & SONS INC | | | SCAC3 |
| 22 | BLBI | BLB TRANSPORT CORP | | | SCAC4 |
| 23 | BLBK | BELBECK TRUCKING | | | SCAC3 |
| 24 | BLBL | BLUE BELL POTATO CHIP CO | | | SCAC3 |
| 25 | BLBL | BLUE LINE SHIP MANAGEMENT SA | | | SCAC4 |
| 26 | BLBM | BLOOMSBURG MOVING & STORAGE INC | | | SCAC3 |
| 27 | BLBN | BLACK BALL LINES INC | | | SCAC3 |
| 28 | BLBO | BLUE BOLT TRUCKING INC | | | SCAC3 |
| 29 | BLBP | BLUEBIRD TRANSPORTATION INC | | | SCAC3 |
| 30 | BLBP | BUCKLEY TRANSPORTATION INC | | | SCAC4 |
| 31 | BLBQ | BRUCE TRANSFER CO | | | SCAC3 |
| 32 | BLBQ | BLUE RIBBON DISTRIBUTING INC | | | SCAC4 |
| 33 | BLBR | BLOMBERG BROTHERS | | | SCAC3 |
| 34 | BLBR | BLOMBERG BROS INC | | | SCAC4 |
| 35 | BLBS | BALLARD BROTHERS TRUCKING | | | SCAC3 |
| 36 | BLBS | B & L LOGISTICS LLC | | | SCAC4 |
| 37 | BLBT | BLB TRANSPORT INC | | | SCAC4 |
| 38 | BLBV | BALBOA TRAVEL INCORPORATED | | | SCAC3 |
| 39 | BLBW | BRACH TRUCKING INC | | | SCAC4 |
| 40 | BLBY | BILBREY TOURS INC | | | SCAC4 |
