WARNING!!! The credit card numbers that you generate on this page are completely random and not valid.
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 - 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 credit card numbers in a split second.
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.
WARNING!!! 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.
What do we actually mean when we say "validate a credit card number"? Quite simply it means that we run a credit card number through a special algorithm known as the Mod 10 algorithm. This algorithm processes some simple numerical data validation routines against the number, and the result of this algorithm can be used to determine whether or not a credit card number is valid.www.sitepoint.com
Diners Club. Click to Validate. Example credit card numbers need more test data?The credit card number you entered failed the Luhn Check. It's not valid, did you make a typo? Major Industry Identifier. The first digit of a credit card number represent the category of entity which issued the card. Issuer identification number.www.validcreditcardnumber.com
Credit_card_validations - A ruby gem for validating credit card numbers, generating ones, luhn checks.Gem adds validator to check whether or not a given number actually falls within the ranges of possible numbers prior to performing such verification, and, as such, CreditCardValidations simply verifies that the credit card number provided is well-formed.github.com
Read more about credit card number formats in this wiki page. Example Code to Validate Credit Card Numbers.Since this algorithm requires basic arithmetic, you cannot implement it with a regular expression. Below is the method which you can use to run checksum validation using Luhn Algorithm. This function takes a string with the credit card number as a parameter. The card number should consist only of digits.howtodoinjava.com