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ISIN Services

ASX is the National Numbering Agency (NNA) for Australia and a member of the Association of National Numbering Agencies (ANNA). As a NNA, ASX is responsible for the allocation of International Securities Identification Numbers (ISIN), Classification of Financial Instruments (CFI) codes and Financial Instrument Short Names (FISN) for Australian issued financial instruments.

Request an Australian ISIN

ASX will allocate ISINs for securities of Australian issuers that are listed on ASX, debt securities issued in Austraclear, CHESS Depository Interests (CDI) and CHESS eligible securities of Australian issuers that are listed on other Australian financial markets. The ISIN will be allocated as part of our current services. It is not necessary to request an ISIN for these securities.

ASX has appointed APIR Systems Limited to allocate ISINs on its behalf for Australian unlisted collective investment products (including mFund). Requests for ISINs for these products may be made directly to APIR Systems Limited.

For all other Australian-issued financial instruments ISINs, send the completed application form to ISINS.AU@asx.com.au. An ISIN Code Creation fee per ISIN is payable at the time of making the application. 

Contact ISIN Services

ISIN applications and general enquiries about financial instrument identifiers are managed by the ISIN Services team during business hours.

Ph: 1300 300 289
Email: ISINS.AU@asx.com.au

International securities identification number (ISIN) Codes

The International Standards Organisation (ISO) has provided a standard (ISO 6166) for the numbering of securities. This standard is intended for use in any application in the trading and administration of securities.

The ISIN is a code which uniquely identifies a specific securities' issue.

The ISIN consists of:

  • a prefix which is a 2 character alpha country code.
  • a 9 character code which identifies the security.
  • a check character computed using the modulus 10 formula. 

This is an excel file of the complete ISIN directory for ASX listed companies. This file is updated on the first Friday of each month, unless that day is also the first day of the month. In this case, the file will be updated on the following Friday.