Clearing requirements
All bank offices participating in any of the following clearings must have a sorting code:
Every bank office with a sorting code does not necessarily participate in all these clearings, however, once a sorting code has been issued to a bank office, the same sorting code will be used in all of the clearings. The rules vary to a great extent between the countries. Does the number of characters in the IBAN correspond to the number specified for this country?
Sort code is a bank code used in British banking industry to route money transfers between banks within United Kingdom.