What Is a BIN Checker?
A BIN (Bank Identification Number), also known as an IIN (Issuer Identification Number), consists of the first six digits of a credit or debit card number. With these six digits, a BIN checker can quickly identify key details about the card issuer, such as the bank name, card type, country of origin, and additional card attributes.
For example, entering a BIN like 852369 or 159862 into our tool will return information about the issuing institution and card network. Simply avoid entering non-numeric strings (e.g., “www.card.com”) or full card numbers.
Structure of Credit & Debit Card Numbers
Credit and debit card numbers follow the ISO/IEC 7812 standard, which can extend up to 19 digits in the following format:
A BBBBB CCCCCCCCCCCC D
- A (1 digit): Major Industry Identifier (MII), indicating the industry category (e.g., 4 = Visa, 5 = MasterCard).
- BBBBB (5 digits): Issuer Identification Number (IIN/BIN), identifying the issuing bank or financial institution.
- CCCCCCCCCCCC (up to 12 digits): Individual account number, uniquely assigned to the cardholder’s account.
- D (1 digit): Checksum digit, calculated via the Luhn algorithm to validate the entire number.
How to Use the BIN Checker
- Locate the six-digit BIN on the front of your credit or debit card (not the expiration date or CVV code).
- Navigate to the Free BIN Checker section on our site.
- Enter the first six digits and click the "Check BIN" button.
- Review the detailed issuer information displayed.
Troubleshooting Tips
- Ensure you enter only the first six numeric digits—no spaces, letters, or symbols.
- If an error appears, double-check that you selected the correct card face (front vs. back) and did not confuse the BIN with the CVV or expiry date.
- Remember that some BINs may be reserved or inactive; in such cases, our tool will indicate if issuer data is unavailable.
Key Features of Our Free BIN Checker
- Instant lookup of bank name, card type, and country of issuance.
- Support for Visa, MasterCard, AmEx, Discover, JCB, and more.
- No registration or fees—completely free and unlimited lookups.
- Real-time results powered by up-to-date issuer databases.
- Mobile-friendly interface for on-the-go BIN checks.