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ANNA Implementation of Revised ISO 6166 ISIN Standard Spotlights LEI, CFI and FISN

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The Association of National Numbering Agencies (ANNA) has completed technical implementation of the revised ISO 6166 International Securities Identification Number (ISIN) with a view to bringing further clarity and transparency to the identification and reporting of financial instruments.

Following implementation of the technical changes, National Numbering Agencies (NNAs) within ANNA must formally report Legal Entity Identifiers (LEIs), Classification of Instruments (CFIs), and Financial Instrument Short Names (FISNs) to the ANNA Service Bureau (ASB), increasing data coverage and quality.

For the first time, the revised ISO 6166 standard includes assignment rules for tokenised financial and referential instruments, adding to OTC derivatives already implemented by the Derivatives Service Bureau (DSB). Emission allowances, carbon credits and baskets are also confirmed as instruments within the scope of ISIN assignment. The revised ISIN standard is available to users on the free ISIN Lookup Service and to subscribers of ASB services.

Emma Kalliomaki, managing director of ANNA, says the ISIN revisions have improved clarity of terms, scope and coverage of the standard, which will further enhance usability, increase transparency and aid risk and exposure management. She adds: “The complementary nature of the standards has been confirmed, with the LEI, CFI, FISN and ISIN all working together to bring identification, description and classification in one suite of ISO standards.”

The revised ISO 6166 standard was published in February 2021, following a systematic review by the International Organisation for Standardisation (ISO). Revisions include a wider data set going from 43 to 49 fields. The implementation timeline was based on changes needed to the ASB, as well as an appropriate timeframe for NNAs to update their internal systems to contribute additional data to the ASB.

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