If you can, make the payment using the IBAN instead. I believe all our banks have to publish this now (probably due to EU regulations), and it will often be on

If you can, make the payment using the IBAN instead. I believe all our banks have to publish this now (probably due to EU regulations), and it will often be on ones bank statement. Even though the latter part of the number is simply the sort code and account, the early part of the 'number' (text + digits) includes a checksum over the whole lot.