The Bank Identification Number (BIN) 521355 is issued by CREDIT UNION PAYMENT CENTER (LIMITED LIABILITY COMPANY) in RUSSIAN FEDERATION. This is a MASTERCARD CREDIT card with PREFERRED 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 521355, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (PREFERRED BUSINESS), the issuing bank (CREDIT UNION PAYMENT CENTER (LIMITED LIABILITY COMPANY)), and the country of issuance (RUSSIAN FEDERATION). This information is useful for payment processors, merchants, and fraud prevention systems.