We'll check your number against the Luhn Algorithm to see if it is a valid credit card number.
Major Industry IdentifierThe first digit of a credit card number represent the category of entity which issued the card.
Issuer identification numberThe first six digits of a card number identify the institution that issued the card to the card holder.
Personal Account Numberigits 7 to final number minus 1 (the last is the checksum) indicate the individual account identifier.