FakecreditcardAbout BIN 623309
In our BIN data, 623309 is an UnionPay Business debit card range that belongs to Bank of China HK, registered in Hong Kong. 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). Business, corporate and commercial products are issued to companies for company spending and often carry different interchange fees from consumer cards.
Bank of China HK has fewer than ten BINs in our data, so it has no bank page; 2 BINs starting with 623 belong to it.
Across Hong Kong, the dataset counts 1,721 BINs; among the 1,311 that name an issuer, the main networks are Mastercard (35%), Visa (27%), American Express (16%), and 24% are debit. See the Hong Kong BIN list or the Hong Kong card generator.
UnionPay number format for BIN 623309
| Starts with | 623309 (the BIN). First digit 6: merchandising and banking |
|---|---|
| Length | 16 to 19 digits |
| Security code | 3-digit CVN2 on the back |
| Check digit | The last digit, calculated with the Luhn algorithm |
| Printed as | 6233 0974 2790 1634 |
When you test with this BIN, check that your form shows the UnionPay logo, groups the 16 digits correctly and rejects numbers whose check digit is wrong. The generator creates as many numbers with this BIN as you need, with expiry dates and CVVs, as CSV, JSON or XML.
Nearby BINs
BINs just below and above 623309. Banks often hold consecutive ranges, so neighbours can be sister products of the same issuer.
More BINs from Bank of China HK
Frequently asked questions
Which bank issued BIN 623309?
BIN 623309 is registered to Bank of China HK in Hong Kong. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.
Is 623309 a debit or a credit card BIN?
It is recorded as debit, product level Business. 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 623309 have?
UnionPay card numbers have 16 to 19 digits, and the security code is a 3-digit CVN2 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 623309?
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 Bank of China HK, 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.