The Bank Identification Number (BIN) 439738 is issued by TOPCARD SERVICE AG in SWITZERLAND. This is a VISA CREDIT card with SIGNATURE level.
BIN (Bank Identification Number), also known as IIN (Issuer Identification Number), refers to the first 6 digits of a payment card number. These digits identify the card-issuing institution, card type, and other attributes used for routing and fraud prevention.
By looking up BIN 439738, you can determine: the card network (VISA), whether it's a credit, debit, or prepaid card (CREDIT), the card level (SIGNATURE), the issuing bank (TOPCARD SERVICE AG), and the country of issuance (SWITZERLAND). This information is useful for payment processors, merchants, and fraud prevention systems.