The Bank Identification Number (BIN) 377663 is issued by CTBC BANK in TAIWAN, PROVINCE OF CHINA. This is a AMERICAN EXPRESS CREDIT card with PERSONAL 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 377663, you can determine: the card network (AMERICAN EXPRESS), whether it's a credit, debit, or prepaid card (CREDIT), the card level (PERSONAL), the issuing bank (CTBC BANK), and the country of issuance (TAIWAN, PROVINCE OF CHINA). This information is useful for payment processors, merchants, and fraud prevention systems.