The number is attached to all accounts in the EU countries plus Norway, Switzerland, Liechtenstein and Hungary.
The IBAN is made up of a code that identifies the country the account belongs to, the account holder's bank and the account number itself. The IBAN makes it easier and faster to process cross-border payments.
The number comprises maximum 34 alphanumerical characters, which are structured as follows:
Read the full story at: Danske Bank Group