| 1 | BUK | Buckley Air Ltd. | Callsign: Buckley, | NZ | AVCODES |
| 2 | BUK | Bbdorf & Kerstan GmbH | | DE | VKM |
| 3 | BUKA | BULK SPECIALTIES INC | | | SCAC3 |
| 4 | BUKA | BULK ATLANTIC INC | | | SCAC4 |
| 5 | BUKB | BEST TRUCKING LLC | | | SCAC4 |
| 6 | BUKD | BUCKS TRUCKS | | | SCAC3 |
| 7 | BUKD | BOND TRUCKING SA DE CV | | | SCAC4 |
| 8 | BUKE | BURKE MOVING & STORAGE INC | | | SCAC3 |
| 9 | BUKF | BUCKHURST SHIPPING COMPANY | | | SCAC3 |
| 10 | BUKG | BUCKEYE TRUCKING COMPANY INC | | | SCAC3 |
| 11 | BUKG | BARTON TRUCKING | | | SCAC4 |
| 12 | BUKH | BULK HAULERS INC | | | SCAC3 |
| 13 | BUKI | BUCK TRUCKING CO | | | SCAC3 |
| 14 | BUKI | BUTLER TRUCKING INC | | | SCAC4 |
| 15 | BUKJ | BUCKO INC | | | SCAC3 |
| 16 | BUKK | BUCKS TRUCKS INC | | | SCAC3 |
| 17 | BUKL | BULK TANKER MANAGEMENT LIMITED | | | SCAC3 |
| 18 | BUKL | BUCKLIN TRACTOR | | | SCAC4 |
| 19 | BUKM | B & R TRUCKING | | | SCAC4 |
| 20 | BUKN | BUK TRUCKING, INC | | | SCAC3 |
| 21 | BUKO | BUCKO TRUCKING | | | SCAC3 |
| 22 | BUKP | BUCKS INC | | | SCAC3 |
| 23 | BUKP | BUCKS INC | | | SCAC4 |
| 24 | BUKQ | BURKE, PHILIP | | | SCAC3 |
| 25 | BUKQ | BEAR TRUCKING LLC | | | SCAC4 |
| 26 | BUKR | BULK CARRIERS INC | | | SCAC3 |
| 27 | BUKS | BUCKS TRUCKING | | | SCAC4 |
| 28 | BUKU | BERTSCHI AG | | CH | BIC |
| 29 | BUKU | BULKTAINER RENTAL AND FINANCE LTD | | | SCAC4 |
| 30 | BUKV | BUCKO VAN LINES INC | | | SCAC3 |
| 31 | BUKW | BUNCE TRUCKING LLC | | | SCAC4 |
| 32 | BUKX | Louisville Gas and Electric Co. | added 7/1989; 1/1994-7/2005 | | NAKINA |
| 33 | BUKX | General American Transportation Corp. | added 1/1988 | | NAKINA |
| 34 | BUKX | General American Transportation Corp. | added 1/88 | | NRHS |
| 35 | BUKX | Louisville Gas and Electric Co. | added 7/89; 1/94-7/2000 | | NRHS |
| 36 | BUKX | LOUISVILLE GAS AND ELECTRIC COMPANY (GENERAL AMERICAN TRANSPORTATION CORP.) | | | PWRC |
| 37 | BUKX | Louisville Gas and Electric | | | RSRV |
| 38 | BUKX | LOUISVILLE GAS AND ELECTRIC COMPANY | | | SCAC4 |
| 39 | BUKY | BUCKLEYS DISTRIBUTING COMPANY | | | SCAC3 |
