Validates a card number's Luhn (mod 10) checksum and looks up its BIN. This checks number format only — it never charges or contacts any card network.
Calls the same live service behind WHA Shield's own API — no simulated data.
Click any value below to fill it into the field above and run the check automatically.
| Card Number | Description |
|---|---|
| 4242424242424242 | Visa — publicly documented test number |
| 4000056655665556 | Visa (debit) — publicly documented test number |
| 5555555555554444 | Mastercard — publicly documented test number |
| 5200828282828210 | Mastercard (debit) — publicly documented test number |
| 378282246310005 | American Express — publicly documented test number |
| 6011111111111117 | Discover — publicly documented test number |