IBAN validator / Luxembourg
Luxembourg IBAN format (LU)
A Luxembourg IBAN is 20 characters long and begins with the country code LUfollowed by two check digits. Validate one below — the check runs in your browser (ISO 13616 mod-97).
- Country code
- LU
- IBAN length
- 20
- Example
- LU280019400644750000
Runs entirely in your browser — nothing is sent to a server. A valid IBAN format does not mean the account exists or is active.
Validate Luxembourg IBANs via API
curl "https://www.checkfmt.com/api/v1/iban?iban=LU280019400644750000&key=YOUR_KEY"