The Bank Identification Number (BIN) 555367 is issued by WESTPAC BANKING CORPORATION in VIET NAM. This is a MASTERCARD DEBIT card with WORLD FOR BUSINESS 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 555367, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (DEBIT), the card level (WORLD FOR BUSINESS), the issuing bank (WESTPAC BANKING CORPORATION), and the country of issuance (VIET NAM). This information is useful for payment processors, merchants, and fraud prevention systems.