| 1 | DON | Donair Flying Club Ltd. | Callsign: Donair, | GB | AVCODES |
| 2 | DON | Donair Flying Club | | | ICAO1 |
| 3 | DONA | DONS CAR CRUSHING | | | SCAC4 |
| 4 | DONAU | DONAU CHEM SRL | | RO | VKM |
| 5 | DONCT | Doncaster Corporation Transport | | GB | TRAFFIC |
| 6 | DONE | DONNELLY, D INC | | | SCAC4 |
| 7 | DONF | DON'S FROZEN EXPRESS, INC | | | SCAC1 |
| 8 | DONG | DONS TRUCKING INC | | | SCAC4 |
| 9 | DONGBU | Dongbu Tour | | USA | TRAFFIC |
| 10 | DONI | DENISON OHIO NORTHERN | | | SCAC4 |
| 11 | DONI | | City: Donietsk | UA | TRAFFIC |
| 12 | DONK | DONS TRUCKING INC | | | SCAC4 |
| 13 | DONM | DONMOYER, J P INC | | | SCAC4 |
| 14 | DONN | DONNELLY TRANSPORTATION INC | | | SCAC4 |
| 15 | DONP | DIAMOND OIL NEBRASKA LLC | | | SCAC4 |
| 16 | DONQ | DONS TRUCK SALES LTD | | | SCAC4 |
| 17 | DONS | DON EXPRESS | | | SCAC4 |
| 18 | DONU | COMMISSIONARIA S.R.L. | | I | BIC |
| 19 | DONU | DONATI TRASPORTI SRL | | | SCAC4 |
| 20 | DONX | Donelly Commodities Inc. | added 1/2004; 7/2005; eliminated 4/2008 | | NAKINA |
| 21 | DONX | Dixon Corp. | added 4/1959; eliminated 4/1960 | | NAKINA |
| 22 | DONX | *DIXON CORP. | | | PWRC |
| 23 | DONX | +DONNELLY COMMODITIES CORP. | | | PWRC |
| 24 | DONX | Donnelly Commodities | | | RSRV |
| 25 | DONX | DONNELLY COMMODITIES INC | | | SCAC4 |
