List of Discover Issuing Banks
Discover branded credit and debit cards are issued by a total of three banks and financial institutions across the world. Each bank issues Discover cards under one or more IINs, or Issuer Identification Numbers, which make up the first six digits of the payment card number. Choose any issuing bank to access a list of their currently active IINs and card validation rules.
|Issuing Bank / Countries Issued
|Type of Card
|# of IINs