The Bank Identification Number (BIN) 521920 is issued by SUMITOMO MITSUI CARD COMPANY, LIMITED in JAPAN. This is a MASTERCARD CREDIT card with MIXED 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 521920, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (MIXED), the issuing bank (SUMITOMO MITSUI CARD COMPANY, LIMITED), and the country of issuance (JAPAN). This information is useful for payment processors, merchants, and fraud prevention systems.