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.
Recently, I’ve come across several sites who have done away with the credit card type field. Both Amazon and GitHub don’t require you to select a credit card type in their form. As you fill in the credit card number, the user interface changes to show the type of credit card being used. Amazon waits until the entire credit card number is entered and then displays an icon representing the credit card type.webstandardssherpa.com
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
The credit/debit card number is referred to as a PAN, or Primary Account Number. The first six digits of the PAN are taken from the IIN, or Issuer Identification Number, belonging to the issuing bank (IINs were previously known as BIN — Bank Identification Numbers — so you may see references to that terminology in some documents). These six digits are subject to an international standard, ISO/IEC 7812, and can be used to determine the type of card from the number.stackoverflow.com