The Bank Identification Number (BIN) 557639 is issued by BANCO SANTANDER MEXICO SA INSTITUCION DE BANCA MULTIPLE GRUPO FINANC in MEXICO. This is a MASTERCARD DEBIT card with BUSINESS 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 557639, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (DEBIT), the card level (BUSINESS), the issuing bank (BANCO SANTANDER MEXICO SA INSTITUCION DE BANCA MULTIPLE GRUPO FINANC), and the country of issuance (MEXICO). This information is useful for payment processors, merchants, and fraud prevention systems.