The Bank Identification Number (BIN) 621679 is issued by ZHANGJIAKOU XUANHUA JIAYIN COUNTY BANK CO., LTD in CHINA. This is a CHINA UNION PAY DEBIT card with Unknown 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 621679, you can determine: the card network (CHINA UNION PAY), whether it's a credit, debit, or prepaid card (DEBIT), the card level (Unknown), the issuing bank (ZHANGJIAKOU XUANHUA JIAYIN COUNTY BANK CO., LTD), and the country of issuance (CHINA). This information is useful for payment processors, merchants, and fraud prevention systems.