About a-team Marketing Services
The knowledge platform for the financial technology industry
The knowledge platform for the financial technology industry

A-Team Insight Blogs

ANNA Plans Implementation of Revised ISO 6166 ISIN Standard in February 2023

Subscribe to our newsletter

The Association of National Numbering Agencies (ANNA) will implement the revised ISO 6166 International Securities Identification Number (ISIN) standard on 2 February 2023. The revised standard was published in February 2021 and is designed to bring additional clarity and transparency to the identification and reporting of trades through the use of international standards.

Highlights of the ISIN standard revision include:

  • An increased data set with the formal inclusion of Legal Entity Identifier (LEI), Classification of Financial Instruments (CFI) and Financial Instrument Short Name (FISN) as part of the minimum data record
  • Explicit language to confirm the standard covers both financial and referential instruments
  • Assignment rules for OTC derivatives as already implemented by the Derivatives Service Bureau
  • Clarification that ISIN is assigned on a technology agnostic basis, including assignment for tokenised financial and referential instruments, emission allowances, carbon credits and baskets confirmed as instruments within the scope of ISIN assignment.

Emma Kalliomaki, managing director at ANNA, says: “Since publication of the latest version of ISO 6166, there has been much discussion and collaboration on how best to set the implementation timelines, which are now agreed for February 2023. The ISIN revisions improve clarity of terms, and scope and coverage of the standard, which further enhances usability, increases transparency and aids risk and exposure management, thereby benefiting the market.”

The timeline for deployment of the revised ISIN standard takes in necessary changes to the ANNA Service Bureau (ASB), and changes National Numbering Associations (NNAs) must make to their internal systems to contribute the required additional data to the ASB. Upon implementation on 2 February 2023, the changes will be available to users of the freely available ISIN Lookup Service and to subscribers to ASB services.

Subscribe to our newsletter

Related content

WEBINAR

Upcoming Webinar: Unlocking value: Harnessing modern data platforms for data integration, advanced investment analytics, visualisation and reporting

4 September 2025 10:00am ET | 3:00pm London | 4:00pm CET Duration: 50 Minutes Modern data platforms are bringing efficiencies, scalability and powerful new capabilities to institutions and their data pipelines. They are enabling the use of new automation and analytical technologies that are also helping firms to derive more value from their data and...

BLOG

Critical but Challenging – Managing Unstructured Data: A-Team Webinar Preview

Unstructured data accounts for an estimated 80 per cent of companies’ data estate and the volume of that information is forecast to grow by a third each year. Consequently, management of the class of data that is being culled from sources as diverse as financial reports and social media posts has become a pressing challenge....

EVENT

ESG Data & Tech Briefing London

The ESG Data & Tech Briefing will explore challenges around assembling and evaluating ESG data for reporting and the impact of regulatory measures and industry collaboration on transparency and standardisation efforts. Expert speakers will address how the evolving market infrastructure is developing and the role of new technologies and alternative data in improving insight and filling data gaps.

GUIDE

AI in Capital Markets: Practical Insight for a Transforming Industry – Free Handbook

AI is no longer on the horizon – it’s embedded in the infrastructure of modern capital markets. But separating real impact from inflated promises requires a grounded, practical understanding. The AI in Capital Markets Handbook 2025 provides exactly that. Designed for data-driven professionals across the trade life-cycle, compliance, infrastructure, and strategy, this handbook goes beyond...