BIN Checker

Check a card BIN format, Luhn validity and brand by prefix — no live BIN database, bank not identified.

100% FreeNo sign-upPrivate — runs in your browser

Honest scope: there is no live BIN database in this tool, so it cannot identify the issuing bank. It reports format, brand-by-prefix and, for full numbers, the Luhn check only. Use test numbers only — never a real card number.

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BIN result


        
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How to use this tool

1
Enter 6+ digits

Just the BIN, or a full test number.

2
Read BIN and brand

First 6 and first 8 digits, plus brand by prefix.

3
Check Luhn for full numbers

Shown only when 12 or more digits are entered.

4
Do not expect a bank name

That needs a live BIN database, which this tool deliberately does not claim.

Formula & worked example

The BIN is simply the first 6 (or 8) digits. Brand follows the same prefix ranges as the Luhn Checker (4 Visa, 51–55/2221–2720 Mastercard, 34/37 American Express, 6011/644–649/65 Discover, 35 JCB). For a full number the Luhn sum is also computed. No database is consulted, so no bank can be named.

411111 gives BIN 411111, brand Visa; a full test number 4111111111111111 also passes its Luhn check.

Limitations — read this before you rely on it

No live BIN database: the issuing bank, card level (credit/debit/prepaid), country and issuer cannot be identified here, and prefix ranges change over time as schemes issue new ranges. Full-number results are format checks only and prove nothing about a real card.

Frequently asked questions

The first 6 (or 8) digits of a card number, which identify the card scheme and, in a full database, the issuer.

There is no live BIN database in this tool. It reports format, brand-by-prefix and the Luhn check only — naming a bank would require a database lookup.

The scheme inferred from leading digits (for example 4 = Visa). Schemes issue new ranges over time, so this is approximate, not authoritative.

No — only that the digits are self-consistent. It proves nothing about existence, status or ownership.

No — use test numbers only, and never paste a real card number into any web page.