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BIN 550537 – Mastercard Debit Card from KB Kookmin Card Co., Ltd

The first six digits 550537 identify a Mastercard Standard debit card issued by KB Kookmin Card Co., Ltd (South Korea). Below: card format, test numbers and related BINs.

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550537Mastercard Debit
Network
Mastercard
Type
Debit
Level
Standard
Issuer
KB Kookmin Card Co., Ltd
Country
South Korea KR
Card length
16 digits
Security code
3-digit CVC2 on the back
8-digit range
55053700–55053799
Issuer phone
+8215881688
Issuer website
card.kbcard.com

Generate test numbers with this BIN Open in BIN generator All BINs of this bank

Sample test numbers for BIN 550537 Test data

NumberExpiryCVVCopy
5505 3792 2872 438803/2030314
5505 3755 4355 392401/2027798
5505 3701 4590 489809/2031527

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 550537

BIN 550537 is listed as a Mastercard Standard debit card issued by KB Kookmin Card Co., Ltd in South Korea. 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). Standard marks an entry-level consumer product.

KB Kookmin Card Co., Ltd has 271 BINs in the dataset, which makes it the third-largest of 31 banks with a BIN page in South Korea. The KB Kookmin Card Co., Ltd BIN list shows all of them with network, type and level.

South Korea has 4,520 BINs in the dataset; among the 3,773 that name an issuer, the main networks are Local brand (38%), Visa (21%), Mastercard (19%), and 33% are debit. See the South Korea BIN list or the South Korea card generator.

Mastercard number format for BIN 550537

Starts with550537 (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 as5505 3792 2872 4388

When you test with this BIN, check that your form shows the Mastercard 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.

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Nearby BINs

BINs just below and above 550537. Banks often hold consecutive ranges, so neighbours can be sister products of the same issuer.

More BINs from KB Kookmin Card Co., Ltd

All 271 BINs of KB Kookmin Card Co., Ltd →

Frequently asked questions

Which bank issued BIN 550537?

BIN 550537 is registered to KB Kookmin Card Co., Ltd in South Korea. The dataset lists the website card.kbcard.com. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.

Is 550537 a debit or a credit card BIN?

It is recorded as debit, product level Standard. 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 550537 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 550537?

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 KB Kookmin Card Co., Ltd, 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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