| 1 | DBC | Gemini Air Group, Inc. | Callsign: Diamond Back, | USA | AVCODES |
| 2 | DBC | DB Cargo | | D | TRAFFIC |
| 3 | DBCE | DBC ENTERPRISES INC | | | SCAC4 |
| 4 | DBCI | D-B CARTAGE INC | | | SCAC4 |
| 5 | DBCI | DB Cargo Italia | | I | TRAFFIC |
| 6 | DBCK | DIAMONDBACK EXPRESS INC | | | SCAC4 |
| 7 | DBCR | Deutsche Bahn Cargo Romania S.R.L. | | RO | TRAFFIC |
| 8 | DBCS | DORSETT BROTHERS CONCRETE SUPPLY | | | SCAC4 |
| 9 | DBCU | DRY BOX INC | | USA | BIC |
| 10 | DBCU | Dry Box | | | RSRV |
| 11 | DBCX | BASF Corp. | added 4/1986; 1/1994-7/2005 | | NAKINA |
| 12 | DBCX | Badische Corp. | added 7/1979; 1/1980; eliminated 4/1986; 1/1994 | | NAKINA |
| 13 | DBCX | Dow Badische Co. | added 1/1973; 1/1975; eliminated 7/1979 | | NAKINA |
| 14 | DBCX | Dowdle Brothers' Co. | 7/1930-7/1932 | | NAKINA |
| 15 | DBCX | Badische Corp. | added 7/79; 1/80; eliminated 4/86; 1/94 | | NRHS |
| 16 | DBCX | Dow Badische Co. | added 1/73; 1/75; eliminated 7/79 | | NRHS |
| 17 | DBCX | BASF Corp. | added 4/86; 1/94-7/2000 | | NRHS |
| 18 | DBCX | BASF CORPORATION [BADISCHE CORP.; DOW BADISCHE CO.; DOWDLE BROTHERS' CO.] | | | PWRC |
| 19 | DBCX | Dow Badische Corporation (BASF Corporation) | | | RSRV |
| 20 | DBCX | BASF CORPORATION | | | SCAC4 |
| 21 | DBCY | DELTA BROKERAGE COMPANY INC | | | SCAC4 |
