ISIN Validator
Instantly validate ISIN stock codes with this free validator built for everyday investors. Includes clear explanations so you can invest with confidence. Part of our free stock code validators.
Explainer
ISIN is short for "International Securities Identification Number" and is a 12-character alphanumeric code that uniquely identifies securities globally.
Naming Convention
ISIN codes are only valid if they follow this naming convention:
First 2 characters
Country code (ISO 3166-1 alpha-2)
Next 9 characters
National Securities Identifying Number (NSIN)
Last character
Check digit (using the Luhn algorithm)
Additional Information
- Scope
- Global
- Issuer
- National Numbering Agencies (NNAs), overseen by the Association of National Numbering Agencies (ANNA)
- Compliance Standard
- ISO 6166
Explainer
ISIN is short for "International Securities Identification Number" and is a 12-character alphanumeric code that uniquely identifies securities globally.
Naming Convention
ISIN codes are only valid if they follow this naming convention:
First 2 characters
Country code (ISO 3166-1 alpha-2)
Next 9 characters
National Securities Identifying Number (NSIN)
Last character
Check digit (using the Luhn algorithm)
Additional Information
- Scope
- Global
- Issuer
- National Numbering Agencies (NNAs), overseen by the Association of National Numbering Agencies (ANNA)
- Compliance Standard
- ISO 6166