The Bank Identification Number (BIN) 421521 is issued by OMNI BANCO S.A. in BRAZIL. This is a VISA DEBIT card with ELECTRON 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 421521, you can determine: the card network (VISA), whether it's a credit, debit, or prepaid card (DEBIT), the card level (ELECTRON), the issuing bank (OMNI BANCO S.A.), and the country of issuance (BRAZIL). This information is useful for payment processors, merchants, and fraud prevention systems.