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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

ANNA Responds to the Financial Conduct Authority and Bank of England Call for Input on the Future of Tokenisation

03/07/2026

Brussels, 3 July: ANNA Responds to the Financial Conduct Authority and Bank of England Call…

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ANNA General Meeting 2026, Zurich, Switzerland

23/06/2026

We are pleased to share a highlights video and photos from the ANNA General Meeting,…

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ANNA Responds to Bermuda Monetary Authority Consultation Paper on Asset Tokenisation

22/06/2026

Brussels, 22 June: ANNA Responds to the Bermuda Monetary Authority Consultation paper on asset tokenisation…

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ANNA Announces Management Body Appointment, a new Partnership and Global NNA Transfers to Drive Global Financial Data Standards

15/06/2026

Ratified at ANNA’s General Meeting in Zurich, 11-12 June 2026 London, 15 June 2026 –…

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ANNA Newsletter April 2026

29/04/2026

Dear Reader, With Q1 2026 now complete, this ANNA newsletter showcases the recent community achievements…

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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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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 ·
23 Jun

Thank you to all our members, industry partners and colleagues who joined our Annual General Meeting in Zurich, Switzerland. Special thanks to SIX for organising such a wonderful event.

Looking forward to continuing these important discussions! 🌍✨

https://youtu.be/M_-ajpr2ca4

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

ANNA has re-elected Cristina Ribó Sörensen to the Management Body, approved a new partner in Brunei Darussalam, and confirmed NNA transfers for China and Sri Lanka.

Thank you to SIX for hosting us in Zurich. We look forward to our next GM in Bolivia.

https://anna-web.org/anna-announces-management-body-appointment-a-new-partnership-and-global-nna-transfers-to-drive-global-financial-data-standards/

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anna_isin Association of National Numbering Agencies (ANNA) @anna_isin ·
8 Jun

Chairman of the ANNA Board and MD at WM Datenservice, Torsten Ulrich, moderates this year’s International Financial Standards Conference #IFSC.

Join the discussion on 12 November in Frankfurt or online to explore global standards.

View the agenda here: https://www.wmdatenservice.com/en/ifsc-2026/

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