| 1 | CBX | S.C. COBREX Trans S.R.L. | Callsign: Cobrex, | RO | AVCODES |
| 2 | CBX | Carling Brewing Co. | added 1/1955; 10/1957-4/1961; eliminated 10/1962 | | NAKINA |
| 3 | CBX | Canadian Breweries Ltd. | 4/1947-7/1954; eliminated 10/1954 | | NAKINA |
| 4 | CBX | Canadian Breweries Ltd. | Jan-52 | | NRHS |
| 5 | CBX | Carling Brewing Co. | 10/57-4/61 | | NRHS |
| 6 | CBX | CARLING BREWING CO. [CANADIAN BREWERIES LTD.] | | | PWRC |
| 7 | CBXB | C & B TRANSPORTATION BROKERAGE LLC | | | SCAC4 |
| 8 | CBXE | CBC II, INC | | | SCAC3 |
| 9 | CBXF | CARIBBEAN EXPRESS FREIGHT INV | | | SCAC3 |
| 10 | CBXF | CBS EXPRESS FREIGHT INC | | | SCAC4 |
| 11 | CBXG | CBT | | | SCAC4 |
| 12 | CBXH | CUBILLO TRANSPORT LLC | | | SCAC4 |
| 13 | CBXI | CABANO EXPEDITEX INC | | | SCAC3 |
| 14 | CBXI | COLBERTS TRANSPORTATION INC | | | SCAC4 |
| 15 | CBXJ | CB TRANSPORTS | | | SCAC4 |
| 16 | CBXL | C N B TRANSPORT LLC | | | SCAC4 |
| 17 | CBXM | C B TRANSPORT | | | SCAC4 |
| 18 | CBXN | CTBX INC | | | SCAC4 |
| 19 | CBXO | CARROL, W G & CO INC | | | SCAC3 |
| 20 | CBXO | CUBA TRANSPORT | | | SCAC4 |
| 21 | CBXQ | CANON BALL EXPRESS | | | SCAC3 |
| 22 | CBXQ | COBOS TRANSPORTATION | | | SCAC4 |
| 23 | CBXR | CABLE X-PRESS | | | SCAC3 |
| 24 | CBXS | CARIBE EXPRESS | | | SCAC4 |
| 25 | CBXT | C B | | | SCAC4 |
| 26 | CBXU | CBOX CONTAINERS EQUIPMENT BV | | NL | BIC |
| 27 | CBXU | CUBAEXPORT ENTERPRISE | | | SCAC3 |
| 28 | CBXU | CONTAINER COMPANY AMSTERDAM BV | | | SCAC4 |
| 29 | CBXV | COLUMBIA TRANSPORT LLC | | | SCAC4 |
| 30 | CBXW | CARIBEX WORLDWIDE INC | | | SCAC4 |
| 31 | CBXX | CBC 1, A DELAWARE LIMITED LIABILITY | | | SCAC4 |
| 32 | CBXY | CABO TRANSPORT & SERVICES | | | SCAC4 |
