Telephone numbering in Austria

Austria telephone numbers

The area code zones approximately follow the boundaries of the states, but Burgenland, Vorarlberg, East Tyrol and the western part of Lower Austria are assigned to other areas.
Location
Country	Austria
Continent	Europe
Regulator	RTR
Type	open
Access codes
Country calling code	+43
International call prefix	00
Trunk prefix	0

This article details the use of telephone numbers in Austria.

There are no standard lengths for either area codes or subscribers' numbers in Austria, meaning that some subscribers' numbers may be as short as three digits. Larger towns have shorter area codes permitting longer subscriber numbers in that area. Some examples:

The assignment of mobile phone numbers can vary, due to number portability.

In ascending numeric order:

Due to number portability, the code is not a safe way to evaluate the provider of a phone number. The providers assign only in exceptional cases (special sort of custom numbers, more expensive) non-existing numbers with a different prefix, and this is handled similar as porting an existing number from the desired network. However, the providers still have the administrative sovereignty over their own prefix.