The Bank Identification Number (BIN) 433661 is issued by BOC CREDIT CARD (INTERNATIONAL) LIMITED in MACAO. This is a VISA CREDIT card with 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 433661, you can determine: the card network (VISA), whether it's a credit, debit, or prepaid card (CREDIT), the card level (BUSINESS), the issuing bank (BOC CREDIT CARD (INTERNATIONAL) LIMITED), and the country of issuance (MACAO). This information is useful for payment processors, merchants, and fraud prevention systems.