The table below contains a number of credit card numbers that can be used to test credit card handling software.
4111111111111111 (VISA) 4222222222222 (VISA) 4444333322221111 (VISA) 378282246310005 (AMEX) 378734493671000 (AMEX) 371449635398431 (AMEX) 6011111111111117 (DISCOVER) 6011000990139424 (DISCOVER) 5555555555554444 (MASTERCARD) 5105105105105100 (MASTERCARD)