Sweden (SE) is using 5 different algorithms: MOD11, MOD10 algorithms with custom weights.Italy (IT) is using modified MOD10 algorithm in domestic account number validations.Germany (DE) has a complex structure with 143 algorithms and custom weights: MOD10, MOD11, MOD7 ect.France (FR) is using MOD97 algorithm with custom weights The Netherlands (NL) is using MOD11 algorithm with custom weights to validate account numbers.United Kingdom (UK) is using 3 different algorithms: MOD10, MOD11 and DBLAL with 39 different weights.Some countries use internal check digit algorithms to validate domestic BBAN.Įvery country uses a different algorithm and in some countries algorithms vary from bank to bank or even individual branches.
If you don't know your International Bank Account Number (IBAN number) you can calculate IBAN from bank code and account number.Įvery IBAN contains a local bank account number also called BBAN ( Basic Bank Account Number).
You may review the supported countries and use the examples to test the service.Īdditionally, please feel free to visit our data accuracy and security sections to learn more about our data quality and informational security practices.