The Bank Identification Number (BIN) 377851 is issued by WESTPAC in AUSTRALIA. This is a AMERICAN EXPRESS CREDIT card with PERSONAL GOLD CHARGE 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 377851, you can determine: the card network (AMERICAN EXPRESS), whether it's a credit, debit, or prepaid card (CREDIT), the card level (PERSONAL GOLD CHARGE), the issuing bank (WESTPAC), and the country of issuance (AUSTRALIA). This information is useful for payment processors, merchants, and fraud prevention systems.