The Bank Identification Number (BIN) 637599 is issued by ITAU UNIBANCO S.A. in BRAZIL. This is a MASTERCARD Unknown card with PRIVATE LABEL HIPERCARD 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 637599, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (Unknown), the card level (PRIVATE LABEL HIPERCARD), the issuing bank (ITAU UNIBANCO S.A.), and the country of issuance (BRAZIL). This information is useful for payment processors, merchants, and fraud prevention systems.