What is the IBAN number for HSBC 40-05-15?

To obtain the IBAN number for a specific HSBC UK account with the sort code 40-05-15, you would need to know the account number associated with it. The IBAN is generated by combining the country code, check digits, bank identifier, and account number, so without the account number, the full IBAN cannot be provided. You can typically find your IBAN on your bank statement or by contacting HSBC directly.