In your credit-card number, the first digit indicates the system: 3 – travel/entertainment cards (such as American Express and Diners Club) 4 – Visa. MasterCard – 5.
What are the first four digits of a Discover Card?
Basically, it is a number that identifies major industries. There are different industries represented by each digit. Visa cards – Begin with a 4 and have 13 or 16 digits. Mastercard – Begin with a 2 and have 13 or 16 digits.
What are the first three digits of a Discover card?
Diners Club cards begin with 5 and have 16 digits. These are joint ventures between Diners Club and MasterCard, and should be processed like a MasterCard. Card number of Discover begins with 6011 or 65. ^6(?:011. 5[0-9]{2})[0-9]{12}$ Discover card numbers begin with 6011 or 65.
What do the first four numbers on a credit card mean?
There is no meaning to the 4 groups. They do, in fact. The first digit is 4 for VISA, 5 for Mastercard, 6 for Discover/Diners Club, and 3 for American Express/Diners Club (those are shorter than 16). Also, first 6 digits for Visa and Mastercard are code numbers for the issuing institution.
How many numbers does a Discover card have?
16
