310021
310021 is a JCB Debit card issued by Mizuho in Japan. The source data does not record a card category for this BIN, so we cannot say whether it is a personal or business card.
debit 
JAPAN 3100 21XX XXXX XXXX
Cardholder Name
John Doe
Card
- Brand
- JCB
- Type
- debit
- Category
- JCB
- Spending
- —
Issuer
- Bank
- MIZUHO
- Country
- japan
- Phone
- +81332141111
- Website
- www.mizuhobank.com
What does BIN 310021 tell us?
BIN 310021 belongs to the JCB network and is issued by MIZUHO in JAPAN. This is a debit card (not prepaid).
The first 6 digits of this card number uniquely identify the issuing institution and card program. This information is used by payment processors, fraud detection systems, and merchants to route transactions and validate cards.
BIN data is public information shared across millions of cards. Knowing a BIN does not expose any personal or account information. The remaining digits are unique to each cardholder and include a check digit validated by the Luhn algorithm.
BIN 310021 FAQ
Common questions about BIN 310021 and card identification.