National Numbering Agency (NNA) Overview

The JSE is the recognised numbering authority for issuing ISINs for South Africa, as authorised by the Association of National Numbering Agencies (ANNA).


ANNA membership comprises each National Numbering Agency (NNA) for each country.  The NNA has a crucial role in the financial markets of their own nations, as well as global markets. Their activity is to accept the registration information, directly from issuers of new financial instruments, such as shares, bonds and derivatives, and then to issue codes that uniquely identify these instruments.


After each new instrument is registered, and issued an ISIN and a CFI, the NNA is required to maintain the validity of the registration data.


The NNA is legally obligated to provide daily updates to ANNA regarding any new registered ISINs.


ANNA maintains the consolidated global database of all ISINs worldwide.


The NNA’s method of registration, which depends on direct contact with the issuer, or its agent, produces the only global securities identification code that is based on verified first-hand information.


Each NNA has been appointed by their national financial regulators to take on this role for the benefit of their national economy and to support the free flow of financial information and capital throughout global markets.


Duties of the NNA


Generation of an ISIN

The NNA endeavours to generate an ISIN, on behalf of the requester, within a period of 24 hours, or the next business day, provided that all the correct supporting documentation is provided at the same time as the request. This excludes Saturdays, Sundays and Public Holidays.