Issuer Identification Number (IIN)
The issuer identification number (IIN) is a unique six-digit code that identifies the issuing bank or other financial institution that issued a credit or debit card. It is used by merchants and payment processors to determine which bank issued the card and to route payments appropriately.
Format:
The IIN is typically formatted as the first six digits of the card number. For example, the IIN for a Mastercard card is 51, and the IIN for a Visa card is 4.
Examples:
- Mastercard card number: 5112 3412 1234 56
- Visa card number: 4123 4567 8901 234
- Discover card number: 312 345 678 901
Purpose:
- Routing payments: The IIN is used to route payments to the correct bank.
- Fraud detection: The IIN can be used to detect fraudulent transactions.
- Card type identification: The IIN can be used to identify the type of card (e.g., Mastercard, Visa, Discover).
Additional information:
- The IIN is assigned by the American National Standards Institute (ANSI).
- The IIN is also known as the Issuer Identification Number Scheme (IINS).
- The IIN is not a secret number, but it should be kept confidential.
FAQs
How do I find my IIN number?
You can find your IIN (Issuer Identification Number) on your bank card. It is usually the first 6-8 digits of your card number, used to identify the issuing bank.
What is the IIN number in a bank account?
The IIN number refers to the first few digits of a debit or credit card that identifies the bank or financial institution that issued the card.
What is the IIN number in Aadhaar?
Aadhaar does not have an IIN number. The IIN number is specifically related to bank-issued cards like debit or credit cards.
What is the IIN number of a bank?
The IIN number is part of the card number assigned by a bank. It helps identify the institution that issued the card.
What is the IIN number in SBI?
In SBI, the IIN number refers to the first 6-8 digits of your debit or credit card issued by the bank.
