A valid credit card number has several fields and each of them has a meaning. For the technically inclined, this number complies to the ISO 7812 numbering standard. An contains a six-digit issuer identification number (IIN), an individual account identification number, and a single digit checksum.
The credit card numbers you generate on this page are completely random. When we say they are valid, we merely imply that they are a possible combination of characters which will validate when passed through the MOD 10 algorithm. You can also generate valid credit card numbers for specific Issuing Networks by utilising their particular prefixes. However, we do not provide you (obviously) with the correspondent verification code for these cards, as they are completely fake and made up randomly.
If you've ever found yourself trying to try a product online which required a credit card, even when you just want to take a look, you know why we made this. We believe there's no need to share such information with providers without the actual intent to buy stuff. Anyone can make a website with a form and require you to insert valuable and sensitive information which requires you to give up your privacy. This is a way to protect yourself in such situations.
The other reason we made this are programmers testing ecommerce websites, applications or other software. They usually need lots of fake data, and this is a very easy way to generate a bunch of valid credit card numbers in a split second. There's another tool for those times when you need to generate all other kinds of data.
Credit card numbers that conform to the Luhn formula (MOD 10 check). Usefull for testing e-commerce sites (because they should get past any pre-validation you do, and be declined at the card processor or bank stage). In testing situations any expiry date within the next 3 years should work.A very good article about the credit card number format can be found here: Anatomy of Credit Card Numbers.www.darkcoding.net
On an American Express® card, the CVV number is found on the front of the card, slightly above and to the right or left of the credit card number. It is a four digit number. For any other credit cards, such as bank issued credit cards, you may need to call the bank and ask where the credit card CVV number is located if you cannot find it on your own; usually it will just be the one number on the card that does not seem to correspond to anything else.www.wisegeek.org
Using the credit card example below, let’s take a look at how the Luhn algorithm works. Here we have a basic credit card with a 16 digit number (note that the last four digits, 9123, are a little difficult to see). In order to see if this card’s number is real, we need to follow a few easy steps. First we identify the check digit, which is always the last digit on the credit card.www.doughroller.net