SWIFT / BIC Code
UNBNDE21
Union-Bank AG
UNBNDE21 is the BIC (SWIFT code) of Union-Bank AG, registered in Flensburg. Its bank code (BLZ) is 21520100, the code an IBAN at Union-Bank AG carries in positions 5 to 12. Its IBANs are 22 characters long. The bank receives SEPA Instant transfers and answers Verification of Payee name checks.
Check an IBAN from Union-Bank AG
Prefilled with an illustrative Union-Bank AG IBAN, not a real account. Paste any IBAN from Germany to check it.
BIC Breakdown
UNBN: institution identifier (4 letters)
DE: country code per ISO 3166-1
21: location code (city / timezone)
Bank Details
Payments it can receive
Union-Bank AG's participation in the European payment schemes, from the EPC register of participants.
Verification of Payee lets the payer's bank compare the name typed on a euro transfer with the account holder's name. This page shows whether the bank takes part; ibanchecker.cash does not check names.
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IBAN format for 🇩🇪 Germany
Germany IBANs are 22 characters long.
Frequently Asked Questions
What is the SWIFT code for Union-Bank AG?
UNBNDE21. Written with the head-office branch code it is UNBNDE21XXX; both forms reach the same bank. A euro transfer within SEPA needs only the IBAN.
What does UNBNDE21 mean?
"UNBN" identifies Union-Bank AG, "DE" is the country code for Germany, "21" is the location code.
What is Union-Bank AG's bank code (BLZ)?
21520100. It is the bank code in positions 5 to 12 of an IBAN from Germany. The Bundesbank Bankleitzahlen lists it.
How long are Union-Bank AG IBANs?
22 characters, like every IBAN from Germany: the country code DE, two check digits, the BLZ (8 digits, 21520100 for Union-Bank AG) and the account number (10 digits).
Can I send an instant transfer to Union-Bank AG?
Yes. The European Payments Council lists Union-Bank AG in SEPA Instant Credit Transfer since 20 November 2018, so an instant euro transfer from a participating bank reaches its accounts in seconds.
Does Union-Bank AG confirm the payee's name?
Yes. It answers Verification of Payee requests (since 5 October 2025), so the payer's bank can compare the name entered with the account holder's name before a euro transfer is sent.
Where is Union-Bank AG's registered office?
Große Str. 2, 24937 Flensburg, according to GLEIF. The European Payments Council lists Grosse Strasse 2, Flensburg as its address.