The Bank Identification Number (BIN) 524121 is issued by CMB WING LUNG BANK LIMITED in HONG KONG. This is a MASTERCARD CREDIT card with CORPORATE EXECUTIVE 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 524121, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (CORPORATE EXECUTIVE), the issuing bank (CMB WING LUNG BANK LIMITED), and the country of issuance (HONG KONG). This information is useful for payment processors, merchants, and fraud prevention systems.