| Abbreviation | Designation | |
|---|---|---|
| AT-OÖ | Oberösterreich, Land Oberösterreich (German) Upper Austria | country code |
| OO | Oberoderwitz (German) | fare point / vehicle registration plate |
| Abbreviation | Designation | |
|---|---|---|
| AT-OÖ | Oberösterreich, Land Oberösterreich (German) Upper Austria | country code |
| OO | Oberoderwitz (German) | fare point / vehicle registration plate |