What Is ISIN

ISIN stands for International Securities Identification Number and is a 12 digit alpha-numeric code used to uniquely identify a tradable security (Shares, bonds, warrants etc). ISIN is generally used for identification of a security during the trading and settlement process.

Understanding the ISIN code.

An ISIN consists of a two letter country code, a nine-digit alpha-numeric identifier, called the National Securities Identifying Number (NSIN), and a single check digit. The NSIN is issued by the National Numbering Agencies (NNA) of the respective country. The check digit is computed according to the modulus 10 “Double-Add-Double” formula

Let us take the ISIN of Infosys as an example.

Company Name Industry Symbol Series ISIN Code
Infosys Ltd. IT INFY EQ INE009A01021

The break up is as follows:

IN represents the country code i.e INDIA (based upon ISO 3166).
E009A0102: the 9 digit National Securities Identifying Number.
1: The check digit

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Chartered Accountant with a passion for Blogging. You can reach out to me at ca.sandipan@gmail.com Twitter: @sanded28


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