FakecreditcardAbout BIN 421378
In our BIN data, 421378 is a Visa Classic debit card range that belongs to Union Bank of Taiwan, registered in Taiwan. 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). Classic marks an entry-level consumer product.
With 49 BINs, Union Bank of Taiwan ranks 6th among the 31 banks we list for Taiwan. The Union Bank of Taiwan BIN list shows all of them with network, type and level.
Across Taiwan, the dataset counts 1,262 BINs; among the 1,167 that name an issuer, the main networks are Mastercard (38%), Visa (38%), JCB (10%), and 10% are debit. See the Taiwan BIN list or the Taiwan card generator.
Visa number format for BIN 421378
| Starts with | 421378 (the BIN). First digit 4: banking and financial |
|---|---|
| Length | 16 digits (13 and 19 also allowed) |
| Security code | 3-digit CVV2 on the back |
| Check digit | The last digit, calculated with the Luhn algorithm |
| Printed as | 4213 7802 1953 4312 |
A checkout that receives a number starting with 421378 should detect Visa, 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 421378 in our data. Neighbouring ranges often belong to the same bank, but not always — each range is assigned separately.
More BINs from Union Bank of Taiwan
All 49 BINs of Union Bank of Taiwan →
Frequently asked questions
Which bank issued BIN 421378?
BIN 421378 is registered to Union Bank of Taiwan in Taiwan. The dataset lists the website www.ubot.com.tw. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.
Is 421378 a debit or a credit card BIN?
It is recorded as debit, product level Classic. 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 421378 have?
Visa card numbers have 16 digits (13 and 19 also allowed), and the security code is a 3-digit CVV2 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 421378?
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 Union Bank of Taiwan, 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.