While in test mode, what test credit card numbers can I use?

For test transactions, you can use one of the credit cards listed below. When prompted for an expiration date for the credit card, use any date in the future.

Do not use real credit card numbers.

Common sale tests

Number	Merchant	Notes/purpose
4111111111111111	Visa	Sale successful.
5555555555554444	MasterCard	Sale successful.
371449111020228	Amex	Sale successful.

3-D Secure tests

Number	Merchant	Notes/purpose
4000000000000002	Visa	Sale successful.
4000000000000127
4000000000000028	Visa	Card enrolled, verification failed.
4000000000000010
5200000000000007	MasterCard	Sale successful.
5200000000000106
5200000000000023	MasterCard	Card enrolled, verification failed.
5200000000000015
340000000003961	Amex	Sale successful.
344400000000569
340000000006022	Amex	Card enrolled, verification failed.

Note: Specific errors are mapped to certain amounts in test mode. If you would like to test for a specific reason code/error, please refer to the appropriate testing information for your payment processor (your payment processor is determined by your merchant bank).

Also read: Payment gateway example