What is the ISO code for falkland islands?

ISO 3166-1 alpha-2 (2 digits) for falkland islands

The ISO 3166-1 code for falkland islands is: FK

Each country, or geographical entity, or province, or department, etc. has been awarded codes defined in ISO 3166 by the International Organization for Standardization (ISO).
ISO 3166-1 alpha-2: two-letter codes are used for many applications, including top-level domains for each country.