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For more complete testing data you can make up an expiration dates, a card holder name and possibly an address with a zip code.We choose not to provide this data but you can easily make up this information.This formula has been in use to validate a lot of identification numbers besides credit cards since its development by scientist Hans Peter Luhn from IBM.
The first digit of the issuer identification number is the major industry identifier (MII).
The maximum length of the account number is 12 digits. The last digit is the checksum which we explained how to calculate using the MOD 10 algorithm.
It is used to validate the primary account number to protect against accidental errors.
A valid credit card number (also known as Primary Account Number - PAN) has several fields and each of them has a meaning.
For the technically inclined, this number complies to the ISO/IEC 7812 numbering standard.
To be completely clear and spell this out, these fake credit card numbers should not be used to try and purchase stuff.