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

Institutional Tokenisation Standards Adoption: A Review of Real-world Progress – Digital Asset Week London 9 October

20/10/2025

Our Managing Director, Stephan Dreyer, joins a panel on “Institutional Tokenisation Standards Adoption: A Review…

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CRB Monitor Partners with DTIF and ANNA to Advance Digital Asset Risk Solutions

06/10/2025

CRB Monitor, leading provider of emerging compliance and risk solutions to banks, is partnering with…

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ANNA at Sibos 2025 Frankfurt

01/10/2025

ANNA Sibos Streets 2025 Watch as Managing Director of ANNA, Stephan Dreyer, speaks with Julia…

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Call for Evidence on a Comprehensive Approach for the Simplification of Financial Transaction Reporting

ANNA Responses to ESMA Consultation Paper on Call for Evidence on a Comprehensive Approach for the Simplification of Financial Transaction Reporting

23/09/2025

Brussels, 19th September: ANNA submitted its response to ESMA's call for evidence on a comprehensive…

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ANNA responds to FCA Consultation Paper on Stablecoin Issuance and Cryptoasset Custody

28/07/2025

Brussels, 28th July: ANNA has submitted its response to the FCA’s consultation paper CP25/14 on…

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The Association of National Numbering Agencies (ANNA) wins ‘Best Reference Data Provider’ at the WatersTechnology Rankings Awards 2025

21/07/2025

London, 21 July 2025: We are delighted to announce that the Association of National Numbering…

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Association of National Numbering Agencies (ANNA) Follow

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

ANNA_ISIN
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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