| 1 | DCM | Fltplan, LLC | Callsign: Dot Com, | USA | AVCODES |
| 2 | DCM | FLTPLAN | | | ICAO1 |
| 3 | DCME | DCM EXPRESS LLC | | | SCAC4 |
| 4 | DCMG | DISTINCTION CARGO MANAGEMENT INC | | | SCAC4 |
| 5 | DCMK | DURHAM CUSTOM MILLWORK | | | SCAC4 |
| 6 | DCMO | DUKES, C M OIL CO | | | SCAC4 |
| 7 | DCMP | DOCMASTER TRANSPORT LLC | | | SCAC4 |
| 8 | DCMT | DCM TRANSPORT INC | | | SCAC4 |
| 9 | DCMU | MINISTERE DES ARMEES - SIMMT | | F | BIC |
| 10 | DCMU | DIR CENTRALE DU MATERIEL DE LARMEE | | | SCAC4 |
| 11 | DCMV | DAWSON CREEK MOVING & STORAGE LTD | | | SCAC4 |
| 12 | DCMX | Davidson Construction Materials, Inc. | added 4/1982; eliminated 4/1989 | | NAKINA |
| 13 | DCMX | Delta Chemical & Iron Co. | 7/1923-1/1943 | | NAKINA |
| 14 | DCMX | Delta Chemical Co. | 8/1920 | | NAKINA |
| 15 | DCMX | Delta Chemical & Iron Co. | Apr-38 | | NRHS |
| 16 | DCMX | Davidson Construction Materials, Inc. | added 4/82; eliminated 4/89 | | NRHS |
| 17 | DCMX | *DELTA CHEMICAL & IRON CO. | | | PWRC |
| 18 | DCMX | *DAVIDSON CONSTRUCTION MATERIALS INC. | | | PWRC |
| 19 | DCMX | Davidson Construction Materials | | | RSRV |
