The Bank Identification Number (BIN) 546637 is issued by BANCO BAC SAN JOSE, S.A. in COSTA RICA. 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 546637, 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 BAC SAN JOSE, S.A.), and the country of issuance (COSTA RICA). This information is useful for payment processors, merchants, and fraud prevention systems.