The Bank Identification Number (BIN) 540309 is issued by BANCO BS2 S.A. in BRAZIL. This is a MASTERCARD CREDIT card with BLACK 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 540309, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (BLACK), the issuing bank (BANCO BS2 S.A.), and the country of issuance (BRAZIL). This information is useful for payment processors, merchants, and fraud prevention systems.