The Bank Identification Number (BIN) 543644 is issued by KB KOOKMIN CARD CO., LTD in KOREA, REPUBLIC OF. This is a MASTERCARD CREDIT card with STANDARD 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 543644, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (STANDARD), the issuing bank (KB KOOKMIN CARD CO., LTD), and the country of issuance (KOREA, REPUBLIC OF). This information is useful for payment processors, merchants, and fraud prevention systems.