| 1 | DLR | Dala Air Services Ltd. | Callsign: Dala Air, | WAN | AVCODES |
| 2 | DLR | Dala Air Services | | | ICAO1 |
| 3 | DLRB | DULCERIA LA REGIA | | | SCAC4 |
| 4 | DLRC | DELAWARE RIVER COACH LINES INC | | | SCAC4 |
| 5 | DLRE | DULAY ROAD CARRIERS | | | SCAC4 |
| 6 | DLRH | DE LA ROSA, LUIS CHB INC | | | SCAC4 |
| 7 | DLRJ | DE LA ROSA, GERMAN | | | SCAC4 |
| 8 | DLRL | DLR FREIGHT INC | | | SCAC4 |
| 9 | DLRN | DE LUNA RODRIGUEZ, JUAN JAIME | | | SCAC4 |
| 10 | DLRQ | DE LA ROSA TRUCKING | | | SCAC4 |
| 11 | DLRR | DE LOS RIOS RUBIO TRANSPORTES | | | SCAC4 |
| 12 | DLRS | DEALER SUPPLIES | | | SCAC4 |
| 13 | DLRT | DANIELS, RICHARD TRANSPORTATION INC | | | SCAC4 |
| 14 | DLRU | DELO LTD. | | RUS | BIC |
| 15 | DLRV | DE LA ROSA, SILVIA | | | SCAC4 |
| 16 | DLRX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 17 | DLRX | General Electric Railcar Services Corp. | added 1/1984; 1/1994; eliminated 1/2000 | | NAKINA |
| 18 | DLRX | North American Car Corp. | added 7/1956; 10/1957-1/1980; eliminated 1/1984 | | NAKINA |
| 19 | DLRX | North American Car Corp. | added 7/56; 10/57-1/80 | | NRHS |
| 20 | DLRX | General Electric Railcar Services Corp. | 1/94; eliminated 1/2000 | | NRHS |
| 21 | DLRX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 22 | DLRX | *DISNEY LAND RAILROAD | | | PWRC |
| 23 | DLRX | +(NATX) G.E. RAIL SERVICES [NORTH AMERICAN CAR CORP] | | | PWRC |
| 24 | DLRX | GE Railcar Services Corporation | | | RSRV |
| 25 | DLRX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
| 26 | DLRX | General Electric Rail Services Corp. | | USA | TRAFFIC |
| 27 | DLRY | DEL REY EXPRESS | | | SCAC4 |
