Country information - Austria

Sources: The Austrian dataset is compiled from official sources.
Update frequency: Monthly.
Postcodes: four digits, such as 1100 for Favoriten in Vienna. One postcode can span several municipalities: 9020 covers Klagenfurt, Magdalensberg and Maria Saal.

Finding an address

A postcode and house number don't identify an Austrian address. Autocomplete needs the postcode, settlement and street, or an addressId.
Several addresses can share one house number, such as separate buildings on one site. The API then returns a 400 that lists their addressId values; pick one by its location or buildingName and repeat the request with that addressId. Börseplatz 1/1 in Vienna has two, 33 metres apart; Sankt-Peter-Straße 25 in Linz has 196.

streetNumber is text, returned as the source writes it: 1, a range such as 6-8 in Dorotheergasse 6-8 (one house number), or a letter such as A for Gasometer A in Simmering.
premise is the part after the slash: 2 in 16/2. Börseplatz 1 exists only as 1/1, 1/2 and 1/3, so a request without a premise returns a 400 that lists them.
Addresses carry their addressId and, where the source names the building (Wohnhaus, Hauptgebäude, Bau 1), a buildingName.

state: the Bundesland.
district: the politischer Bezirk. For a statutory city it is the city itself, such as Stadt Linz.
municipality: the Gemeinde.
settlement: the Ortschaft. In Vienna it is the district (Gemeindebezirk), such as Favoriten. Some names are abbreviated as in the source, such as St.Veiter Vorstadt; matching ignores spaces and punctuation, so St. Veiter Vorstadt finds it.