IBAN stands for International Bank Account Number. IBANs were introduced to standardise the identification of bank accounts internationally. your existing bank sort code and account numbers haven't been replaced - your IBAN simply has more characters added. You can find your relevant IBANs on your statements.
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What are IBAN and SWIFT codes
IBAN stands for International Bank Account Number. IBANs were introduced to standardise the identification of bank accounts internationally.