An International Securities Identification Number (ISIN) uniquely identifies a security. The ISIN code is a 12-character alpha-numerical code serves for uniform identification of a security at trading and settlement does not contain information characterizing financial instruments.
An ISIN consists of three parts: Generally, a two letter country code, a nine character alpha-numeric national security identifier, and a single check digit.
Example code: US0378331005, AU0000XVGZA3, GB0002634946.