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The Association of National Numbering Agencies

The Association of National Numbering Agencies (ANNA) is a global member association of National Numbering Agencies (NNAs), seeking to foster standardisation within the financial industry by upholding the International Organization for Standardization (ISO) principles, and by promoting International Securities Identification Numbers (ISIN), Financial Instrument Short Name (FISN), and Classification of Financial Instruments (CFI) codes for financial instruments.

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International Securities Identification Number (ISIN) - ISO 6166

The ISIN is the core identifier of securities transactions and settlement.

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Financial Instrument Short Name (FISN) - ISO 18774

The FISN standard incorporates the issuer short name and the abbreviated characteristics for the financial instrument.

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Classification of Financial Instruments (CFI) - ISO 10962

For each ISIN, the CFI is a detailed description of the type of instrument.

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Legal Entity Identifier (LEI) - ISO 17442

ANNA and GLEIF launched an initiative to link ISINs and LEIs to improve transparency of exposure by linking the issuer and issuance of securities.

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News

StreetsTalksTo The Derivatives Service Bureau (DSB)

StreetsTalksTo Emma Kalliomaki MD of DSB and ANNA

24/04/2026

In this episode, Julia Streets sits down with Emma Kalliomaki to explore the critical role…

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SD Podcast Funds in 15 Minutes

Funds in 15 Minutes Podcast with Stephan Dreyer on Tokenized Funds Need Names: ISIN, DTI & the Standards Layer

24/04/2026

Tokenized fund units promise faster issuance, broader distribution, and new rails for ownership—but only if…

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Bridging Issuers and Instruments: 7 years of ISIN-LEI Mapping

23/04/2026

The ISIN-to-LEI mapping initiative went live on April 4, 2019, as a joint collaboration between…

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ANNA responded FCA Consultation Paper CP25/32: Improving the UK transaction reporting regime

20/02/2026

Brussels, 20th February: The Association of National Numbering Agencies (ANNA) welcomes the opportunity to comment on…

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The Association of National Numbering Agencies (ANNA) wins ‘Best Network, Standards or Infrastructure Partner of the Year’ at the International Awards for Trade, Treasury and Payments 2026

06/02/2026

London, 6 February 2024 – We are delighted to announce that the Association of National…

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ANNA Reflects on 2025 with Streets Consulting

13/01/2026

Our Managing Director, Stephan Dreyer, sat down with Julia Streets MBE to reflect on the…

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The Association of National Numbering Agencies (ANNA) is a global organisation whose members & partners are responsible for assigning ISIN, FISN & CFI codes.

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anna_isin Association of National Numbering Agencies (ANNA) @anna_isin ·
21 Jul

🏆Delighted to be recognised as Best Reference Data Provider at the @WatersTech Rankings Awards 2025!

This award highlights the ASB’s work delivering the world’s only directly sourced ISIN data to support market participants globally.

🔗 Read more: https://anna-web.org/the-association-of-national-numbering-agencies-anna-wins-best-reference-data-provider-at-the-waterstechnology-rankings-awards-2025/

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anna_isin Association of National Numbering Agencies (ANNA) @anna_isin ·
16 Jul

Looking for the #ISIN for Uniswap, Inter-American, USDCV, and bonds from Nomura Research Institute (NRI), City of Lugano and Six Group?

🌐🔒We now have 2.173 ISIN:DTI mappings available.
Check out the most recent ISINs for crypto assets here:
https://anna-web.org/digital-assets

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anna_isin Association of National Numbering Agencies (ANNA) @anna_isin ·
15 Jul

🗣️Our MD @StephanDreyer5 will be speaking at the 19th International Financial Standards Conference #IFSC25 on 12 November in Frankfurt.

He will be on a panel on ‘Adapting Standards for the Digital Assets Ecosystem’.

Find out more and register here: https://www.wmdatenservice.com/en/ifsc-2025/

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