Dummy Credit Card Numbers for Web / Application Testing:

List of dummy credit card number that can be used while testing your applications involving credit card transactions:

Visa: 4111-1111-1111-1111

MasterCard: 5431-1111-1111-1111

Amex: 341-1111-1111-1111

Discover: 6011-6011-6011-6611

Credit Card Prefix Numbers:

Visa: 13 or 16 numbers starting with 4

MasterCard: 16 numbers starting with 5

Discover: 16 numbers starting with 6011

AMEX: 15 numbers starting with 34 or 37