Association of National Numbering Agencies (ANNA)

The Association of National Numbering Agencies (ANNA) is an international organization with 89 full members and 27 associates worldwide. National numbering agencies authorized to assign ISIN codes to securities become eligible ANNA membership.

As the national numbering agency in Turkey, Takasbank has been an active member of ANNA since 1995 and serves as the member of the ANNA Service Bureau (ASB) Technical Committee, aiming to collect ISIN codes and basic securities information on a web-based platform and offer these codes and information as a product to financial institutions. As the world's largest ISIN and CFI database, the ASB database is a valuable resource for international financial markets with data for more than 125 countries and two international clearing, settlement and custody institutions (Euroclear and Clearstream).