| Code | Name | Region |
|---|---|---|
| ATZEZ | Zell Am Ziller | |
| ATZTW | Zeltweg | |
| ATZMD | Zemendorf-stottera | 1 |
| ATZTG | Zettling | |
| ATZIE | Ziersdorf | |
| ATZIP | Zipf | |
| ATZIR | Zirl | |
| ATZIS | Zistersdorf | |
| ATZNG | Zobing | 3 |
| ATZUR | Zurndorf | 1 |
| ATZRS | Zurs | 8 |
| ATZWD | Zwentendorf | 3 |
| ATZDD | Zwentendorf An Der Donau | 3 |
| ATZWT | Zwettl | 3 |
| ATQWE | Zwolfaxing | 3 |
| ATWWT | Wolkersdorf | 3 |
| ATWSD | Wollersdorf | |
| ATWLL | Wollersdorf-steinabruckl | 1 |
| ATQXZ | Worgl | |
| ATWTB | Worterberg | 8 |
| ATWOS | Wosendorf | |
| ATWUL | Wulkaprodersdorf | 1 |
| ATNRF | Wultendorf | 3 |
| ATWLZ | Wulzeshofen | |
| ATWDU | Wundschuh | 6 |
| ATWUR | Wurflach | 3 |
| ATWUP | Wurzenpass | 2 |
| ATYBB | Ybbs An Der Donau | 3 |
| ATYBS | Ybbsitz | 3 |
| ATZAM | Zams | 7 |
| ATA9Z | Zaussenberg | 3 |
| ATZER | Zeiselmauer | 3 |
| ATZMO | Zell Am Moos | 4 |
| ATZPE | Zell Am Pettenfirst | 4 |
| ATZAS | Zell Am See | |
| ATWID | Wildschonau | 7 |
| ATWIH | Wildshut | |
| ATWIL | Wildungsmauer | 3 |
| ATSDO | Wilfersdorf | 3 |
| ATWBU | Wilhelmsburg | |
| ATWHE | Wilhering | 4 |
| ATWIF | Willendorf | 3 |
| ATWMP | Wimpassing | |
| ATZAB | Wimpassing An Der Laitha | 1 |
| ATWSH | Wimpassing Im Schwarzatale | 6 |
| ATWB2 | Windhaag Bei Freistadt | 4 |
| ATOCW | Winkel | |
| ATWPH | Wippenham | 4 |
| ATWLN | Wolfern | 4 |
| ATWOL | Wolfpassing | 3 |