ISIN, CFI and FISN Services

The National Numbering Agency for Ireland.

Apply for ISIN codes for Irish securities

Euronext Dublin is the National Numbering Agency for ISINs (International Security Identification Number). We are responsible for issuance and maintenance of ISIN, CFI  (Classification of Financial Instruments) and FISN (Financial Instrument Short Name) codes for Irish domiciled entities (Bond, Fund and Equity) and bond securities where the issuance takes place in Ireland.

Member of ANNA

We are a member of the Association of National Numbering Agencies (ANNA)

Global numbering experts

Our highly skilled team will deliver all your numbering requirements

Simple, quick and secure

Use our online process Euronext Direct to apply. We aim to allocate your codes within 24 hours.

Apply for new ISIN(s)

  • New users must register on Euronext Direct
  • Once registered, complete the ISIN form or bulk application

  • Once prompted, attach applicable documentation

  • Select payment option using our secure online service

ISIN delivery includes FISN and CFI Codes

Once we validate your submission, we issue ISIN(s), FISN(s) and CFI codes and will you send you a confirmation email containing these codes.

Your account details will also be updated to include the ISIN(s).

Update ISIN(s)

  • Log on to Euronext Direct
  • Complete the ISIN update form

  • Once prompted, attach applicable documentation

  • There is no fee for updating an ISIN

Once we validate your update submission, we send you a confirmation email containing any updates made to ISIN, FISN or CFI codes.

Learn more


Please view our ISIN Services FAQ section on Euronext Direct.


Learn more about ISIN, CFI and FISN identification standards.


ISIN, CFI and FISN Services

ISIN Services Team

+353 (0)1 6174200