Test Data For Credit Cards Validation

Test Data - Credit Card Numbers
American Express	Discover Card	MasterCard	Visa
American Express numbers start with 34 or 37 and are 15 digits long	Discover Card number start with 6011 or 650 and are 16 digits long	MasterCard numbers start with 51-55 and are 16 digits long	Visa numbers start with 4 and are 13 or 16 digits long
340000000000009 341111111111111 370000000000002 371449635398431 372425119311008 378282246310005 378734493671000	6011000000000004 6011000000000012 6011000990139424 6011111111111117 6011601160116611	5105105105105100 5276440065421319 5424000000000015 5431111111111111 5500000000000004 5555555555554444	4007000000027 4012888818888 4222222222222 4012888888881881 4111111111111111

Also see:

http://www.darkcoding.net/credit-card-numbers/

http://en.wikipedia.org/wiki/Luhn_algorithm

http://en.wikipedia.org/wiki/Credit_card_number