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BIN 518423 – Mastercard Credit Card from United World Chinese Commercial Bank

518423 is the BIN of a Mastercard credit card from United World Chinese Commercial Bank, registered in Taiwan. Below: card format, test numbers and related BINs.

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518423Mastercard Credit
Network
Mastercard
Type
Credit
Level
–
Issuer
United World Chinese Commercial Bank
Country
Taiwan TW
Card length
16 digits
Security code
3-digit CVC2 on the back
8-digit range
51842300–51842399
Issuer phone
+886800818001
Issuer website
www.cathaybk.com.tw

Generate test numbers with this BIN Open in BIN generator

Sample test numbers for BIN 518423 Test data

NumberExpiryCVVCopy
5184 2370 8795 660806/2031693
5184 2354 0872 142003/2029415
5184 2342 0297 353501/2028482

Luhn-valid numbers built from this BIN for testing forms and BIN rules. No bank issued them: they belong to no account and every real payment with them is declined.

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About BIN 518423

In our BIN data, 518423 is a Mastercard credit card range that belongs to United World Chinese Commercial Bank, registered in Taiwan. Credit cards spend against a credit line that the cardholder repays later; interchange fees and fraud rules usually differ from debit cards.

United World Chinese Commercial Bank has fewer than ten BINs in our data, so it has no bank page.

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.

Mastercard number format for BIN 518423

Starts with518423 (the BIN). First digit 5: banking and financial
Length16 digits
Security code3-digit CVC2 on the back
Check digitThe last digit, calculated with the Luhn algorithm
Printed as5184 2370 8795 6608

A checkout that receives a number starting with 518423 should detect Mastercard, 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.

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Nearby BINs

The BINs closest to 518423 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 518423?

BIN 518423 is registered to United World Chinese Commercial Bank in Taiwan. The dataset lists the website www.cathaybk.com.tw. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.

Is 518423 a debit or a credit card BIN?

It is recorded as credit. Credit cards spend against a credit line that the cardholder repays later; interchange fees and fraud rules usually differ from debit cards.

How many digits does a card with BIN 518423 have?

Mastercard card numbers have 16 digits, and the security code is a 3-digit CVC2 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 518423?

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 United World Chinese Commercial Bank, 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.

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