| 1 | BLC | Bellesavia | Callsign: Bellesavia, | BY | AVCODES |
| 2 | BLC | Bellesavia | | | ICAO1 |
| 3 | BLC | Butler County R.R. Co. | 8/1920-7/1923 | | NAKINA |
| 4 | BLC | Butler County R.R. Co. | 23-Jul | | NRHS |
| 5 | BLC | BUTLER COUNTY RAILROAD CO. | | | PWRC |
| 6 | BLC | Belt Railway of Chicago | | USA | TRAFFIC |
| 7 | BLCA | BLACK MOTOR LINE | | | SCAC3 |
| 8 | BLCC | BLASCHAK COAL CO | | | SCAC3 |
| 9 | BLCD | BLANCHARD, A CONTRACTING INC | | | SCAC3 |
| 10 | BLCD | BUGLE LOGISTICS | | | SCAC4 |
| 11 | BLCE | BLACKHAWK ENTERPRISES INC | | | SCAC3 |
| 12 | BLCF | BELL CREEK INC | | | SCAC3 |
| 13 | BLCH | BLANCHARD CASH FUEL | | | SCAC4 |
| 14 | BLCI | BELTMANN CARTAGE | | | SCAC3 |
| 15 | BLCJ | B L TRUCKING INC | | | SCAC3 |
| 16 | BLCK | BLAIR, C K INC | | | SCAC4 |
| 17 | BLCL | BLUE COLLAR LOGISTICS INC | | | SCAC4 |
| 18 | BLCM | BLACKHAWK MOVING & STORAGE INC | | | SCAC3 |
| 19 | BLCM | BLACKHAWK MOVING & STORAGE INC | | | SCAC4 |
| 20 | BLCN | BLUE CHIP TRANSPORTATION | | | SCAC3 |
| 21 | BLCN | BLANCO CANTU, AURORA | | | SCAC4 |
| 22 | BLCO | BUCKEYE LEASING CO | | | SCAC3 |
| 23 | BLCO | BRYAN LOGISTICS COMPANY LLC | | | SCAC4 |
| 24 | BLCP | BLYTHE COMPANY | | | SCAC3 |
| 25 | BLCP | BLUE LEASING CORPORATION INC | | | SCAC4 |
| 26 | BLCQ | BLC TRUCKING INC | | | SCAC4 |
| 27 | BLCR | BRYAN LOGISTICS CORPORATION | | | SCAC4 |
| 28 | BLCS | BLACKIES & SONS GARAGE | | | SCAC3 |
| 29 | BLCT | BERRY LOGISTICS AND TRANSPORTATION | | | SCAC4 |
| 30 | BLCU | BERMUDA CONTAINER LINE LTD. | | | SCAC3 |
| 31 | BLCU | BALTIC CONTAINER LINES CO LTD | | | SCAC4 |
| 32 | BLCV | BAVARIAN LEISURE COTTAGES | | | SCAC4 |
| 33 | BLCX | The Commonwealth Plan, Inc. | 7/2005 (not listed) | | NAKINA |
| 34 | BLCX | The Commonwealth Plan, Inc. (subsidiary of Bankers Leasing Corp.) | eliminated 4/2003 | | NAKINA |
| 35 | BLCX | The Commonwealth Plan, Inc. | 4/1970-1/1994; 7/2000 (not listed) | | NAKINA |
| 36 | BLCX | Bankers Leasing Corp. (Commonwealth Plan, Inc.) | 10/1966 | | NAKINA |
| 37 | BLCX | Commonwealth Plan, Inc. (Subsidiary of Bankers Leasing Corp.) | added 10/1965 | | NAKINA |
| 38 | BLCX | The Commonwealth Plan, Inc. | 7/1965 (not listed) | | NAKINA |
| 39 | BLCX | Bernuth, Lembcke Co., Inc. | 1/1950-1/1952; eliminated 4/1953 | | NAKINA |
| 40 | BLCX | The Booth-Kelly Lumber Co. | 7/1935 | | NAKINA |
| 41 | BLCX | Bernuth, Lembcke Co., Inc. | Jan-52 | | NRHS |
| 42 | BLCX | The Commonwealth Plan, Inc. | Jul-65 | | NRHS |
| 43 | BLCX | Commonwealth Plan, Inc. (Subsidiary of Bankers Leasing Corp.) | added 10/65 | | NRHS |
| 44 | BLCX | Bankers Leasing Corp. (Commonwealth Plan, Inc.) | Oct-66 | | NRHS |
| 45 | BLCX | The Commonwealth Plan, Inc. | 4/70-7/2000 | | NRHS |
| 46 | BLCX | *BERNUTH, LEMBECKE CO., INC. | | | PWRC |
| 47 | BLCX | +COMMONWEALTH PLAN, INC. (BANKERS LEASING CORP.) | | | PWRC |
| 48 | BLCX | Bankers Leasing Corp (The Commonwealth Plan) | | | RSRV |
| 49 | BLCX | COMMONWEALTH PLAN INC | | | SCAC3 |
| 50 | BLCY | BUCKBOARD LOGISTICS & TRANSPORTATIO | | | SCAC4 |
| 51 | BLCZ | BRANDS LUMBER CO. | | | PWRC |