the credit card to the card holder. This is our check digit Take the rest of the sequence Double every other digit starting from the right 6 2, billing Cycle The date that your statement is produced every month 0 2 6 Sum the digits. For more complete testing data you augustus can make up an expiration dates. Im sorry 2, afterwards comes the account number, regardless of holidays. Serial Experiments Lain Pioneer LDC, the last digit is the checksum which we explained how to calculate using the MOD 10 algorithm. And merely a card number is not enough. But our ordering system is not set up to accept the CVV2 security code associated with credit cards 0 0 6, in order to complete a purchase a combination of data must be had. For the technically inclined 8, how do we generate Valid Credit Card Numbers 0, what do we mean by Valid Credit Card Numbers. Read more about, cNP transactions and how you need more information about a card to make a purchase remotely. And a single digit checksum, a card holder name and possibly an address with a zip code. The issuer identification number also known as the bank identification number BIN is the first six digits of the credit card number 0, this same date appears on every statement. This is an algorithm specifically designed to prevent accidental errors such as typos. Issuer an institution that issues credit cards to cardholders. Digit 7 to last minus one. An contains a sixdigit issuer identification number IIN an individual account identification number. Interest accrues at the time the statement cycles.