| Code | Name | Region |
|---|---|---|
| ATPNT | Pernitz | |
| ATPBU | Persenbeug | 3 |
| ATPWG | Perwang | 4 |
| ATPTH | Perwarth | 3 |
| ATPSB | Pessaberg | 6 |
| ATPEC | Petronell-carnuntum | 3 |
| ATPEB | Pettenbach | 4 |
| AT7TA | Pettnau | 7 |
| ATPET | Petzenkirchen | 3 |
| ATOOT | Oepping | 4 |
| ATORI | Oftering | |
| ATGGU | Oggau | 1 |
| ATOLS | Ohlsdorf | 4 |
| ATOEN | Ollern | 3 |
| ATOSF | Ollersdorf | 3 |
| ATOAL | Oneal | |
| ATOIN | Ort Im Innkreis | 4 |
| ATOAD | Orth An Der Donau | 3 |
| ATORT | Ortmann | 3 |
| ATTMH | Ostermiething | 4 |
| ATOSH | Ottensheim | 4 |
| ATOAH | Ottnang Am Hausruck | 4 |
| ATOZB | Otztal-bahnhof | 7 |
| ATOYH | Oyenhausen | 3 |
| ATPAL | Paldau | 6 |
| ATPAT | Palt | 3 |
| ATPTG | Palting | 4 |
| ATPAM | Pamhagen | 1 |
| ATPDF | Parndorf | |
| ATLAM | Oberlamm | 6 |
| ATNE2 | Obermarkersdorf | 3 |
| ATOAM | Oberndorf An Der Melk | 3 |
| ATOBR | Oberndorf Bei Salzburg | |
| ATODT | Oberndorf In Tirol | 7 |
| ATOBU | Oberneukirchen | 4 |
| ATOBE | Oberpullendorf | |
| ATORB | Oberrohrbach | 3 |
| ATOSZ | Oberschutzen | 1 |
| ATOSK | Oberstinkenbrunn | 3 |
| ATOBH | Oberstrahlbach | |
| ATOTN | Obertraun | 4 |
| ATVTD | Obertrum Am See | 5 |
| ATOWG | Oberwagram | 3 |
| ATOWD | Oberwaltersdorf | |
| ATOWN | Oberwang | 4 |
| ATOWT | Oberwart | |
| ATOBW | Oberweis | 4 |
| ATOED | Oed | |
| ATXAE | Oehling | 3 |
| ATNID | Niederleis | 3 |