The BBAN, whose format is decided by the national banking community, includes the domestic bank account number, branch identifier and potentially routing information, the only restrictions being that it must be of fixed length and that only case-insensitive alphanumeric characters are used.
Those countries which use International Bank Account Numbers (IBAN) have mostly integrated the bank code into the prefix of specifying IBAN account numbers.
Each record on the ISCD has 82 fields. In some countries the bank codes can be viewed over the internet, but mostly in the local language.