| 1 | DBX | Big White Bear Jet Co., Ltd. | Callsign: White Bear, | PRC | AVCODES |
| 2 | DBX | Douredoure Brothers | 7/1935-4/1938 | | NAKINA |
| 3 | DBX | Douredoure Brothers | Apr-38 | | NRHS |
| 4 | DBX | DOUREDOURE BROTHERS | | | PWRC |
| 5 | DBX | Dumbarton Express | | US-CA | TRAFFIC |
| 6 | DBXA | DISTRIB DE TEXTOS AMERICANOS S DE R | | | SCAC4 |
| 7 | DBXC | DOABA EXPRESS LLC | | | SCAC4 |
| 8 | DBXG | DB EXPRESS FREIGHT SERVICE LLC | | | SCAC4 |
| 9 | DBXI | DB XPRESS | | | SCAC4 |
| 10 | DBXN | DREAM BIG TRANSPORTATION LLC | | | SCAC4 |
| 11 | DBXO | DUNBAR TRANSPORT | | | SCAC4 |
| 12 | DBXU | DB CARGO AG | | D | BIC |
| 13 | DBXU | DB CARGO AG | | | SCAC4 |
