A very good article about the credit card number format can be found here: Anatomy of Credit Card Numbers As you can see below I get a lot of feedback about this page.
Our ads come from horny women, horny men and horny couples.Our horny members are looking for 1 on 1 sex, no strings sex, discreet affairs or even a long term relationship.Just wondering if you have picked numbers from a range than is not used by the cc companies and thus guaranteed to be invalid or if you’re just assuming that the chances of a random credit card number and a random expiry date matching up are as slim as to be virtually nil.I’m doing something similar (generating a load of cc Luhn numbers) to test an ecommerce site and don’t want to accidentally have somebody billed.The only real restriction is that the expiry date needs to be sometime in the future – even if only a few days. I know what a pain in the [tush] it’s gotta be to wade through all the slime at the shallow end of the gene-pool. Re: Feature request: I would like to generate numbers starting at a particular point, and get the (for example), next 50 or hundred valid numbers starting at that point that I can export to a text file.
(what I really want is a number generator, I could code it myself but just dont’ have the bandwidth.) This way I can generate “blocks” of numbers, and assign them to particular testers – and when I go look on the test site, I can tell which tester did what, based on the number used.
Information about CVV2 / CVC / etc numbers can be found here: CVV numbers.
As you can see these would be very hard to calculate without the bank’s keys.
[graham] The numbers are random, so technically there is a chance.
You’d have to pick a number that is actually in use, then guess the correct name, address and CVV number for the bank to approve the transaction.
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