The Bank Identification Number (BIN) 544023 is issued by BOC CREDIT CARD (INTERNATIONAL), LTD. in HONG KONG. This is a MASTERCARD CREDIT card with Unknown 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 544023, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (Unknown), the issuing bank (BOC CREDIT CARD (INTERNATIONAL), LTD.), and the country of issuance (HONG KONG). This information is useful for payment processors, merchants, and fraud prevention systems.