Ever wonder how some companies know what type of card you have by enter the first few digits. It's very simple if you follow this chart below. But the credit card lingo is nothing new and things you should know if your a vendor.
| Issuer | Prefix |
|---|---|
| Visa | 4- |
| Mastercard | 51-, 52-, 53-, 54-, 55- |
| Diners Club | 36-, 38- |
| Discover | 6011-, 65- |
| JCB | 35- |
| American Express | 34-, 37- |
