| 1 | DRC | Triton Airlines, Inc. | Callsign: Triton Air, | CDN | AVCODES |
| 2 | DRC | Triton Airlines | | | ICAO1 |
| 3 | DRC | DELAWARE RAILROAD CO. | | | PWRC |
| 4 | DRCA | DEOL ROAD CARRIER LTD | | | SCAC4 |
| 5 | DRCE | DIRECT EXPEDITERS INC | | | SCAC4 |
| 6 | DRCG | DIRECT TRUCKING INC | | | SCAC4 |
| 7 | DRCH | DREDGE, C. H.,&CO., INC. | | | SCAC1 |
| 8 | DRCK | DARR TRUCKING | | | SCAC4 |
| 9 | DRCL | Delaware River Coach Lines | an affiliate of Trans-Bridge Lines | US-NJ | TRAFFIC |
| 10 | DRCN | D R C ENTERPRISE INC | | | SCAC4 |
| 11 | DRCO | DIMARCO, P & CO INC | | | SCAC4 |
| 12 | DRCP | DOUBLE JR INC | | | SCAC4 |
| 13 | DRCT | DIRECT TRANSPORT INC | | | SCAC4 |
| 14 | DRCU | DELO LLC | | RUS | BIC |
| 15 | DRCW | DIRECT RIGHT CARTAGE 2001 INC | | | SCAC4 |
| 16 | DRCX | Martin Marietta Corp. | added 1/1979; 1/1980; eliminated 7/1986 | | NAKINA |
| 17 | DRCX | Martin-Marietta Cement, Division of Martin-Marietta Corp. | added 10/1972; 1/1975; eliminated 1/1979 | | NAKINA |
| 18 | DRCX | Dragon Cement Co., Division of Martin Marietta Corp. | added 7/1969; 4/1970; eliminated 10/1972 | | NAKINA |
| 19 | DRCX | Dragon Cement Co., Division of Martin Marietta Corp. | added 7/69; 4/70; eliminated 10/72 | | NRHS |
| 20 | DRCX | Martin-Marietta Cement, Division of Martin-Marietta Corp. | added 10/72; 1/75; eliminated 1/79 | | NRHS |
| 21 | DRCX | Martin Marietta Corp. | added 1/79; 1/80; eliminated 7/86 | | NRHS |
| 22 | DRCX | MARTIN MARIETTA CORP. [DENVER RAILWAY CAR COMPANY; DRAGON CEMENT CO.] | | | PWRC |
| 23 | DRCX | Denver Railway Car Company (Martin Marietta Corporation) | | | RSRV |
| 24 | DRCY | DAYTON RYDER CUP LLC | | | SCAC4 |
| 25 | DRCZ | DON RUSS COMPANY | | | PWRC |
