The Bank Identification Number (BIN) 421979 is issued by FIRSTBANK PUERTO RICO in PUERTO RICO. This is a VISA CREDIT card with SIGNATURE 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 421979, you can determine: the card network (VISA), whether it's a credit, debit, or prepaid card (CREDIT), the card level (SIGNATURE), the issuing bank (FIRSTBANK PUERTO RICO), and the country of issuance (PUERTO RICO). This information is useful for payment processors, merchants, and fraud prevention systems.