Data Standards

Data Standards

We Help to Drive Consistency Across the Industry


Driving Global Data Standardization

Standardized financial data helps global financial markets to set up more efficient processes, interact systematically and fulfil regulatory reporting obligations.

SIX plays an active role in the standardization of financial data by either driving standardization initiatives or executing official standardization mandates. SIX also provides financial markets with standardized financial information. In addition, SIX acts as a provider of registration services. As the maintenance agency secretariats for the standards CFI, ISIN and the Currency Code, SIX ensures that data standards stay up to date.

It is our continuous ambition to drive best practices in the area of data standards and set clear guidelines for the entire industry. Together with strong partners around the globe we are working toward a common goal: making the work with financial data easier for everyone.

National Numbering Agency

In cases when a data standard requires frequent modification or the maintenance of a code list or when a standard requires the assignment of unique identifier, a maintenance agency or a registration authority may be appointed.

SIX is a National Numbering Agency (NNA) and member of ANNA. In this role SIX registers new instruments and issues a related unique International Securities Identification Number (ISIN) and a Classification of Financial Instruments (CFI).


Our Services as a National Numbering Agency

Maintenance Agency

In cases when a data standard requires frequent modification or the maintenance of a code list (based on the “recipe” provided in the standard) or when a standard requires the assignment of unique Identifier it may be decided that a maintenance agency or a registration authority is required.

The Swiss Association for Standardization (SNV) is the appointed Maintenance Agency Secretariat for the ISO 4217 – Currency Codes standard and the ISO 10962 – Classification of Financial Instruments (CFI) standard. SNV has delegated the related responsibilities to SIX.


Our Services as a Maintenance Agency

We Maintain and Update the Currency Code

Currency codes of the International Standard ISO 4217 are important in any information technology application related to trade, commerce and banking, as well as in the public sector. SIX Financial Information AG is the official Maintenance Agency of these currency codes under ISO 4217 and as such the only recognized, authoritative source on currency code designations. SIX provides these currency code services on behalf of the International Organization for Standardization (ISO) and its Swiss member SNV (Swiss Association for Standardization). We maintain the code lists, update them and make them available online and free of charge.

Current and Past Amendments

Effective from 1 October 2021, the following addition will be made to “List one: Currency, fund and precious metal codes”.

Entity Currency  Alphabetic Code Numeric Code Minor Unit

Statement from the ISO 4217 Maintenance Agency

The Bolívar Soberano (VES) is redenominated by removing six zeros from the denominations. A new currency code VED/926 representing the new valuation (1,000,000 times old VES/928) is introduced on 1 October 2021 for any internal needs during the redenomination process, but is not replacing VES as the official currency code. The Central Bank of Venezuela will not adopt the new codes in the local system, VES/928 remains in use.

The actual currency code VES/928 remains the valid code after 1 October 2021 to use in any future transactions to indicate the redenominated Bolívar Soberano.

Until further notice, VES/928 and VED/926 remain on "List one: Currency, fund and precious metal codes".

Changes to the currency codes lists occur if a currency is created, withdrawn or parts thereof altered.

  • Do you have any questions related to ISO currency codes?

    Get in touch with us: SIX Financial Information AG, Hardturmstrasse 201, P.O. Box, 8005 Zurich, Switzerland

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Update: ISO 24165 for Digital Token Identifiers (DTI)

Currently, SIX is developing a new standard for digital assets that will be published at the end of September: ISO 24165 on Digital Token Identifiers (DTI). Read the news by ISO (News 1 & News 2)

 The scope of DTI issuance covers all fungible digital assets which use distributed ledger technology for their issuance, storage, exchange, record of ownership, or transaction validation and are not a “fiat” currency (as defined by ISO 4217). This also includes digital currencies such as Bitcoins.

Some DTIs have already been assigned based on the draft DTI standard as part of a soft launch. Go to the DTIF Registry Search.


SIX also offers the free newsletter service that notifies subscribers about any changes related to currency codes like creation of new currencies, withdrawals or any other alterations. Subscribe to the ISO 4217 Amendment Newsletter today and don’t miss any important updates.

Subscribe to the ISO 4217 Amendment Newsletter

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Market Expertise from SIX and Standardization Mandates

By using standardized financial information, global financial markets can make their processes more efficient, fulfill regulatory reporting obligations and achieve higher data quality, amongst other things.

SIX provides market expertise in national and international groups for more efficient business, beneficial regulations and customer focused products and services. In some committees SIX has the strategic leadership and the official mandate. SIX is a member of the board at ASB, SIX chairs the ISO Reference Data Sub-Committee. 

Our Officials Mandates in the Area of Standardization

  • Do You Have Any Questions? We Are Happy to Help.

    Get in touch with us for any inquiries related to our services around data standardization. 

    • +41 58 399 2111
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