If you need to check or search anything FIGI then this link will help you.
OpenFIGI – an open system for identifying instruments globally across all asset classes.
FIGI have been created for over 300 million unique securities covering most asset classes of the financial markets. FIGI is a 12-character alpha-numerical code that does not contain information characterising financial instruments, but provides uniform unique global identification.
Free resource for checking FIGI which allows you to filter search results.
API is also available for anyone with coding skills.
https://www.openfigi.com/
Research Links and Further Resources
Wikipedia: Financial Instrument Global Identifier