The underlying rules for IBANs is that the account-servicing financial institution should issue an IBAN, as there are a number of areas where different IBANs could be generated from the same account and branch numbers that would satisfy the generic IBAN validation rules. In particular cases where 00 is a valid check digit, 97 will not be a valid check digit, likewise if 01 is a valid check digit, 98 will not be a valid check digit, similarly with 02 and 99.
Every company that does financial transactions can benefit from having a SORT Codes database to verify it's payments, minimizing the risk of mistyped or incorrect data.
For a quick search the side bar contains the main search tool. It is increasingly important that we are able to make automated payments smoothly and efficiently.