| 1 | DSA | Danbury Airways, Inc. | Callsign: Danbury Airways, | USA | AVCODES |
| 2 | DSA | Danbury Airways | | | ICAO1 |
| 3 | DSA | Soo Line R.R. | eliminated 11/1973; 1/1975 & 1/1994-7/2005 | | NAKINA |
| 4 | DSA | Duluth, South Shore and Atlantic R.R. Co. | 10/1966 | | NAKINA |
| 5 | DSA | Soo Line R.R. | 7/1965 | | NAKINA |
| 6 | DSA | Duluth, South Shore & Atlantic R.R. | 1/1943-1/1946; 1/1950-4/1961 | | NAKINA |
| 7 | DSA | Duluth, South Shore & Atlantic Ry. | 1/1941 & 4/1947 | | NAKINA |
| 8 | DSA | Duluth, South Shore & Atlantic R.R. | 1/52-4/61 | | NRHS |
| 9 | DSA | Soo Line R.R. | Jul-65 | | NRHS |
| 10 | DSA | Duluth, South Shore and Atlantic R.R. Co. | Oct-66 | | NRHS |
| 11 | DSA | Soo Line R.R. | eliminated 11/73; 1/75 & 1/94-7/2000 | | NRHS |
| 12 | DSA | CANADIAN PACIFIC RWY [SOO LINE RAILROAD] [DULUTH SOUTH SHORE & ATLANTIC RWY.] | | | PWRC |
| 13 | DSA | Duluth, South Shore & Atlantic Railway (Canadian Pacific Railway) | | | RSRV |
| 14 | DSA | Duluth, South Shore and Atlantic R.R. Co. | | USA | TRAFFIC |
| 15 | DSAA | DSN LOGISTICS INC | | | SCAC4 |
| 16 | DSAC | D & S RESOURCES LTD | | | SCAC4 |
| 17 | DSAE | DEDICATED TRANSPORTATION SOLUTIONS | | | SCAC4 |
| 18 | DSAF | DIAMOND S TRUCKING | | | SCAC4 |
| 19 | DSAI | DAVIDSON SURFACE/AIR INC | | | SCAC4 |
| 20 | DSAL | DISALVO TRUCKING CO | | | PWRC |
| 21 | DSAL | Di SALVO TRUCKING CO | | | SCAC1 |
| 22 | DSAM | DS EXPRESS CARRIERS INC | | | SCAC4 |
| 23 | DSAN | DJ TRANSPORT LLC | | | SCAC4 |
| 24 | DSAP | D & S TRANSPORTATION LLC | | | SCAC4 |
| 25 | DSAS | DAVIS SHIP AGENCIES INC | | | SCAC4 |
| 26 | DSAT | DIRECT TRANSPORT SOLUTIONS LLC | | | SCAC4 |
| 27 | DSAU | POLLUX & CASTOR SHIPPING LIMITED | | | SCAC4 |
| 28 | DSAV | DEARBORN SAUSAGE COMPANY | | | SCAC4 |
| 29 | DSAY | DESERT STAR TRANSPORTATION INC | | | SCAC4 |
