The Bank Identification Number (BIN) 543621 is issued by WOORICARD CO., LTD in KOREA, REPUBLIC OF. This is a MASTERCARD DEBIT card with PLATINUM 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 543621, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (DEBIT), the card level (PLATINUM), the issuing bank (WOORICARD CO., LTD), and the country of issuance (KOREA, REPUBLIC OF). This information is useful for payment processors, merchants, and fraud prevention systems.