| 1 | DCL | Transportes Aereos Don Carlos Ltda. | Callsign: Don Carlos, | RCH | AVCODES |
| 2 | DCL | Transportes Aereos Don Carlos | | | ICAO1 |
| 3 | DCLA | DB CARTAGE LLC | | | SCAC4 |
| 4 | DCLC | D C LOGISTICS LLC | | | SCAC4 |
| 5 | DCLD | DECOR CABINETS LTD | | | SCAC4 |
| 6 | DCLE | D C LEER | | | SCAC4 |
| 7 | DCLF | DC CARGO LLC | | | SCAC4 |
| 8 | DCLG | DEDICATED LOGISTICS INC | | | SCAC4 |
| 9 | DCLH | DEDICATED LOGISTICS INC (REGIONAL) | | | SCAC4 |
| 10 | DCLI | DICEX LOGISTICA S A DE C V | | | SCAC4 |
| 11 | DCLJ | DIRECT CARTAGE LLC | | | SCAC4 |
| 12 | DCLK | DIRECT CONNECT LOGISTIX INC | | | SCAC4 |
| 13 | DCLL | DILLER COMPANY LLC | | | SCAC4 |
| 14 | DCLM | DCL INTERNATIONAL INC | | | SCAC4 |
| 15 | DCLN | DARCOL INTERNATIONAL INC | | | SCAC4 |
| 16 | DCLO | DOMINAN CHAD LLC | | | SCAC4 |
| 17 | DCLR | Delaware Coast Line R.R. Co. | added 10/1983; 1/1994; eliminated 1/1995 | | NAKINA |
| 18 | DCLR | Delaware Coast Line R.R. Co. | added 10/83; 1/94; eliminated 1/95 | | NRHS |
| 19 | DCLR | DELAWARE COAST LINE RAILROAD CO. | | | PWRC |
| 20 | DCLR | Delaware Coast Line Railroad | | | RSRV |
| 21 | DCLR | Delaware Coast Line Railroad | | USA | TRAFFIC |
| 22 | DCLS | DIRECT CONNECT LOGISTICS | | | SCAC4 |
| 23 | DCLU | DEUCON CHEMIELOGISTIK GMBH | | D | BIC |
| 24 | DCLU | DUTCH CONTAINER LEASING B.V. | | | PWRC |
| 25 | DCLU | Dutch Container Leasing | | | RSRV |
| 26 | DCLU | UNIT EQUIPMENT SERVICES AG | | | SCAC4 |
| 27 | DCLW | DIAMOND COORDINATORS LLC | | | SCAC4 |
| 28 | DCLX | Dow Chemical Canada, Inc. | added 4/1997; 7/2000-7/2005 | | NAKINA |
| 29 | DCLX | Procor Ltd. | added 4/1977; 1/1980-1/1994 | | NAKINA |
| 30 | DCLX | Procor Ltd. | 1/80-1/94 | | NRHS |
| 31 | DCLX | Dow Chemical Canada, Inc. | added 4/97; 7/2000 | | NRHS |
| 32 | DCLX | *(PROX) PROCOR LIMITED | | | PWRC |
| 33 | DCLX | +DOW CHEMICAL CANADA INC | | | PWRC |
| 34 | DCLX | Procor Ltd. (Dow Chemical Canada) | | | RSRV |
| 35 | DCLY | DIMITRE CARGO LINES INC | | | SCAC4 |
| 36 | DCLZ | DERBY CITY LUMBER CO. | | | PWRC |
| 37 | DCLZ | MAERSK EQUIPMENT SERVICE COMPANY | | | SCAC4 |
