ISO 20022 · Account identification

BBANBBAN Identifier

Registered in sourceSource release: August 2026 (v3)

Published definition

Basic Bank Account Number (BBAN) - identifier used nationally by financial institutions, ie, in individual countries, generally as part of a National Account Numbering Scheme(s), to uniquely identify the account of a customer.

Code set and usage

Account identification contains 4 registered codes. Its exact identifier is ExternalAccountIdentification1Code.

Specifies the external account identification scheme name code in the format of character string with a maximum length of 4 characters. The list of valid codes is an external code list published separately. External code sets can be downloaded from www.iso20022.org.

Use the code with the applicable message version and implementation guide. A matching code value alone does not establish the same meaning in another set.

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