The Bank Identification Number (BIN) 525643 is issued by BANCO SANTANDER S.A. in SPAIN. This is a MASTERCARD CREDIT card with PREFERRED 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 525643, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (PREFERRED BUSINESS), the issuing bank (BANCO SANTANDER S.A.), and the country of issuance (SPAIN). This information is useful for payment processors, merchants, and fraud prevention systems.