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BIN 525557 – Mastercard Debit Card from Union Bank of Nigeria PLC

The first six digits 525557 identify a Mastercard World Elite debit card issued by Union Bank of Nigeria PLC (Nigeria). Below: card format, test numbers and related BINs.

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525557Mastercard Debit
Network
Mastercard
Type
Debit
Level
World Elite
Issuer
Union Bank of Nigeria PLC
Country
Nigeria NG
Card length
16 digits
Security code
3-digit CVC2 on the back
8-digit range
52555700–52555799
Issuer phone
234-1-2805784
Issuer website
www.unionbankng.com

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

Sample test numbers for BIN 525557 Test data

NumberExpiryCVVCopy
5255 5708 2061 190606/2027392
5255 5763 9422 740904/2028240
5255 5747 9670 346501/2031795

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 525557

In our BIN data, 525557 is a Mastercard World Elite debit card range that belongs to Union Bank of Nigeria PLC, registered in Nigeria. 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). World and World Elite are Mastercard's premium consumer tiers, above Standard and Gold.

With 28 BINs, Union Bank of Nigeria PLC ranks 4th among the 18 banks we list for Nigeria. The Union Bank of Nigeria PLC BIN list shows all of them with network, type and level.

Across Nigeria, the dataset counts 771 BINs; among the 633 that name an issuer, the main networks are Visa (45%), Mastercard (35%), Verve (15%), and 76% are debit. See the Nigeria BIN list or the Nigeria card generator.

Mastercard number format for BIN 525557

Starts with525557 (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 as5255 5708 2061 1906

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 525557. Banks often hold consecutive ranges, so neighbours can be sister products of the same issuer.

More BINs from Union Bank of Nigeria PLC

All 28 BINs of Union Bank of Nigeria PLC →

Frequently asked questions

Which bank issued BIN 525557?

BIN 525557 is registered to Union Bank of Nigeria PLC in Nigeria. The dataset lists the website www.unionbankng.com. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.

Is 525557 a debit or a credit card BIN?

It is recorded as debit, product level World Elite. 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 525557 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 525557?

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 Nigeria PLC, 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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