The Bank Identification Number (BIN) 421356 is issued by UNIBANCA, S.A. in PERU. This is a VISA DEBIT card with CLASSIC 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 421356, you can determine: the card network (VISA), whether it's a credit, debit, or prepaid card (DEBIT), the card level (CLASSIC), the issuing bank (UNIBANCA, S.A.), and the country of issuance (PERU). This information is useful for payment processors, merchants, and fraud prevention systems.