can you tell which kind of credit card by the number
Match the first few digits of the credit card number to one of the major credit card issuers if possible. Discover cards begin with 6011 or 65. MasterCards begin with a number from 51 to 55. American Express cards begin with 34 or 37. JCB cards begin with 2131, 1800 or 35. Visa cards all begin with 4.