text: Yeah those numbers are correct. You can also use the Luhn formula to then validate card numbers quickly to make sure they are at least a valid possible card number and process it manually if it passes the checks. \n\nThis should be sufficient enough for you to then process cards with a reasonable amount of certainty. Just make sure the card clears before sending any goods so that you don't get stiffed with bogus cards.\n\nI have included a few websites you can use (some of them you might have seen already).\n\nEnjoy!