Does the number of characters in the IBAN correspond to the number specified for this country?
Those countries which use International Bank Account Numbers (IBAN) have mostly integrated the bank code into the prefix of specifying IBAN account numbers.
The sort code, which is a six-digit number, is usually formatted as three pairs of numbers, for example, 12-34-56. Why up-to-date sort code data is important
The sort code data used by the UK payments industry is updated constantly to reflect bank and other financial institution changes. It identifies both the bank and the branch where the account is held.