| 1 | DWR | Delaware Skyways LLC | Callsign: Delaware, | USA | AVCODES |
| 2 | DWR | Delaware Skyways | | | ICAO1 |
| 3 | DWR | Gulf, Florida & Alabama Ry. (Muscle Shoals, Birmingham & Pensacola Ry.) | 7/1923 | | NAKINA |
| 4 | DWR | Deep Water Route (Gulf, Florida & Alabama Ry.) | 8/1920 | | NAKINA |
| 5 | DWR | DEEP WATER ROUTE (GULF, FLORIDA & ALABAMA RWY.; MUSCLE SHOALS, BIRMINGHAM & PENSACOLA RWY.) | | | PWRC |
| 6 | DWRN | DWR TRUCKING | | | SCAC4 |
| 7 | DWRS | DRINKWALTER, W R & SONS TRUCKING | | | SCAC4 |
