What Is a Card Number Lookup?
A card number lookup uses the first 6–8 digits of a payment card (the BIN) to identify key information. Only the first 6–8 digits are needed — they represent the issuer and type, not the individual cardholder.
What Can You Learn from a Card Number?
- Card Network — Visa, Mastercard, American Express, Discover, JCB, UnionPay
- Issuing Bank — The financial institution that issued it
- Card Type — Credit, debit, or prepaid
- Card Level — Standard, Gold, Platinum, Signature, Infinite, Business, Corporate
- Country — Where the card was issued
- Currency — Default account currency
Card Number Structure
| Position | Name | Purpose |
|---|---|---|
| Digits 1–6/8 | IIN / BIN | Identifies the issuer, network, and product |
| Middle digits | Account Identifier | Unique to the cardholder |
| Last digit | Check Digit | Luhn algorithm validation |
Quick Identification Guide
| Starts With | Network | Length |
|---|---|---|
| 4 | Visa | 16 digits |
| 5 or 2 | Mastercard | 16 digits |
| 34 or 37 | American Express | 15 digits |
| 6011, 65 | Discover | 16 digits |
| 3528–3589 | JCB | 16 digits |
| 62 | UnionPay | 16–19 digits |
For detailed results, use our free BIN checker or any of our specialized lookup pages.