Is CMCIMCM1LYB a valid SWIFT code?

Yes. CMCIMCM1LYB has the right format and is in our directory for LYONNAISE DE BANQUE. Confirm with the beneficiary that it is the bank that holds their account.

Can I use the head-office code instead of CMCIMCM1LYB?

Usually, yes: international payments reach the bank through its head-office code, CMCIMCM1. Use CMCIMCM1LYB when the beneficiary or their bank asked for this branch.

SWIFT/BIC · Monaco

CMCIMCM1LYB

LYONNAISE DE BANQUE · Branch

Code details

SWIFT/BIC: CMCIMCM1LYB
Institution: LYONNAISE DE BANQUE
Office: Branch
Branch code: LYB
Country: Monaco

What CMCIMCM1LYB means

CMCIMCM1LYB

CMCIBank code
Four letters chosen by the institution.
MCCountry code
Monaco (ISO 3166)
M1Location code
Where the institution sits on the SWIFT network. A 1 in second place marks a passive participant.
LYBBranch code
Identifies one branch or department of the institution.

Paying an account at this bank

You will also need the beneficiary’s IBAN. Monaco IBANs have 27 characters and start with MC. IBAN format and example → Check an IBAN →

Questions

Is CMCIMCM1LYB a valid SWIFT code?: Yes. CMCIMCM1LYB has the right format and is in our directory for LYONNAISE DE BANQUE. Confirm with the beneficiary that it is the bank that holds their account.
Can I use the head-office code instead of CMCIMCM1LYB?: Usually, yes: international payments reach the bank through its head-office code, CMCIMCM1. Use CMCIMCM1LYB when the beneficiary or their bank asked for this branch.

Sending to CMCIMCM1LYB?

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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 .