Is NAUILUL1 a valid SWIFT code?

Yes. NAUILUL1 has the right format and is in our directory for NATIXIS STRUCTURED ISSUANCE SA, LUXEMBOURG. Confirm with the beneficiary that it is the bank that holds their account.

What is the difference between NAUILUL1 and NAUILUL1XXX?

None. NAUILUL1 is the 8-character form of NAUILUL1XXX; XXX at the end means the head office. Either works.

SWIFT/BIC · Luxembourg

NAUILUL1

NATIXIS STRUCTURED ISSUANCE SA · Head office · LUXEMBOURG

Code details

SWIFT/BIC: NAUILUL1 (NAUILUL1XXX)
Institution: NATIXIS STRUCTURED ISSUANCE SA
Office: Head office
Branch code: XXX · head office
Address: 51, AVENUE JOHN F. KENNEDY, L-1855 LUXEMBOURG
City: LUXEMBOURG
Country: Luxembourg

What NAUILUL1 means

NAUILUL1XXX

NAUIBank code
Four letters chosen by the institution.
LUCountry code
Luxembourg (ISO 3166)
L1Location code
Where the institution sits on the SWIFT network. A 1 in second place marks a passive participant.
XXXBranch code
XXX, or nothing at all, means the head office.

Paying an account at this bank

You will also need the beneficiary’s IBAN. Luxembourg IBANs have 20 characters and start with LU. IBAN format and example → Check an IBAN →

Questions

Is NAUILUL1 a valid SWIFT code?: Yes. NAUILUL1 has the right format and is in our directory for NATIXIS STRUCTURED ISSUANCE SA, LUXEMBOURG. Confirm with the beneficiary that it is the bank that holds their account.
What is the difference between NAUILUL1 and NAUILUL1XXX?: None. NAUILUL1 is the 8-character form of NAUILUL1XXX; XXX at the end means the head office. Either works.

Sending to NAUILUL1?

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About this data

Codes are checked against our directory of banks on TrillioniPay corridors. Always confirm the code with the beneficiary’s bank before sending a payment. Last updated: 23 September 2026.

Institution names and addresses: Global Legal Entity Identifier Foundation (GLEIF) LEI data, available under CC0. The address is the legal entity’s registered or head-office address, which can differ from the office SWIFT lists.

SWIFT © and database rights August 2026. All rights reserved. This Mapping Table has been developed by SWIFT. Any use of the Mapping Table, in whole or in part, is subject to the BIC/LEI Mapping Table License Agreement as published with the Mapping Table available on GLEIF's website. The Mapping Table is updated monthly. For the latest BIC information and updates, always refer to www.swift.com/bic .