FakecreditcardAbout BIN 310021
In our BIN data, 310021 is a JCB debit card range that belongs to Mizuho, registered in Japan. Debit cards draw money directly from the cardholder's bank account, so checkouts and gateways often treat them differently from credit cards (fees, holds, recurring billing).
Mizuho has fewer than ten BINs in our data, so it has no bank page.
Across Japan, the dataset counts 13,915 BINs; among the 5,015 that name an issuer, the main networks are Visa (36%), Diners Club (28%), Mastercard (23%), and 7% are debit. See the Japan BIN list or the Japan card generator.
JCB number format for BIN 310021
| Starts with | 310021 (the BIN). First digit 3: travel and entertainment |
|---|---|
| Length | 16 digits (up to 19) |
| Security code | 3-digit CAV2 on the back |
| Check digit | The last digit, calculated with the Luhn algorithm |
| Printed as | 3100 2188 1565 0842 |
A checkout that receives a number starting with 310021 should detect JCB, expect 16 digits and ask for a 3-digit security code. The generator creates as many numbers with this BIN as you need, with expiry dates and CVVs, as CSV, JSON or XML.
Nearby BINs
The BINs closest to 310021 in our data. Neighbouring ranges often belong to the same bank, but not always — each range is assigned separately.
Frequently asked questions
Which bank issued BIN 310021?
BIN 310021 is registered to Mizuho in Japan. The dataset lists the website www.mizuhobank.com. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.
Is 310021 a debit or a credit card BIN?
It is recorded as debit. Debit cards draw money directly from the cardholder's bank account, so checkouts and gateways often treat them differently from credit cards (fees, holds, recurring billing).
How many digits does a card with BIN 310021 have?
JCB card numbers have 16 digits (up to 19), and the security code is a 3-digit CAV2 on the back. The first six digits are the BIN, the last digit is the Luhn check digit, and the digits in between identify the account.
Can I generate test card numbers with BIN 310021?
Yes. Open the generator with this BIN to create Luhn-valid numbers with expiry dates and CVVs for testing forms, validation and BIN-based rules. They are test data: not issued by Mizuho, linked to no account and declined by real payment systems.
Does a BIN tell me whether a card is valid?
No. A BIN describes a range of card numbers — network, issuer, country and product — not a particular card. Whether a card exists or can be charged is known only to the issuing bank. To check the format of a full number (length and check digit), use the card validator.
A BIN identifies the card network and the issuing institution only. It reveals nothing about an individual card, cardholder or account, and it cannot show whether a card exists or can be charged. Test numbers generated from a BIN are for development and QA only and are declined by every real payment system.
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BIN data: bin-list-data by Venelin Kochev (a lite version of binlookup.io), licensed under CC BY 4.0. Changes made by Fakecreditcard: issuer, brand and country names re-cased and standardized, spelling variants of the same issuer merged, malformed phone numbers and web addresses removed.