IBAN stands for International Bank Account Number and this is a unique code given to each individual customer when they open a bank account. The IBAN country code for Austria is AT, but there is no one IBAN code for all Austrian banks; instead, each account holder will be issued a unique IBAN code.
As well as the corresponding digits unique to the account holders, the IBAN format is also different depending on the country, so it is very important you have confirmed the correct IBAN code before sending any sum of money overseas.
We would recommend using an IBAN calculator or IBAN checker, to make sure you definitely have the right bank details to guarantee your funds are headed in the right direction.