| CARD TYPE | Prefix | Length | Check digit algorithm |
|---|---|---|---|
| MASTERCARD | 51-55 | 16 | mod 10 |
| VISA | 4 | 13, 16 | mod 10 |
| AMEX | 34 37 | 15 | mod 10 |
| Diners Club/ Carte Blanche | 300-305 36 38 | 14 | mod 10 |
| Discover | 6011 | 16 | mod 10 |
| enRoute | 2014 2149 | 15 | any |
| JCB | 3 | 16 | mod 10 |
| JCB | 2131 1800 | 15 | mod 10 |
Thursday, November 5, 2009
Prefix, Length and Check Digit Criteria for Credit Card
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