BBAN (Basic Bank Account Number)
The Basic Bank Account Number (BBAN) is the domestic account number format used before IBAN standardization. It includes:
- Bank code
- Branch code (where applicable)
- Account number
BBAN characteristics:
- Country-specific format
- Varies in length by country
- Forms part of the IBAN
The BBAN is the foundation of the IBAN, with the country code and check digits added to create the international format.