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.
Number A is my credit card number. The 4 groups don't have a meaning. They do, actually. First digit is 4 for VISA, 5 for Mastercard, 6 for Discover/Diners Club, 3 for American Express/Diners Club (those are shorter than 16). Also, first 6 digits for Visa and Mastercard are code numbers for the issuing...money.stackexchange.com
Credit card numbers are pre-determined so that the credit industry can keep track of how many cards there are in what specific areas. Let’s take a look at the question “what is a credit card number?”The structure of a credit card number varies by system. For brevity sake the three main credit cards are used for this example. American Express: The third and fourth digits are type and currency. The fifth through eleventh digits are the actual account number.freefrombroke.com
In short, Haselton was able to find Credit Card numbers through Google, firstly by searching for a card’s first eight digits in “nnnn nnnn” format, and later using some advanced queries built on number ranges. For example, he could use “4060000000000000..4060999999999999” to find all the 16 digit Primary Account Numbers (PANs) from CHASE (whose cards all begin with 4060). By the way: here’s a full list of Issuer ID numbers.www.toptal.com