FakecreditcardAbout BIN 551606
BIN 551606 is listed as a Mastercard Standard debit card issued by Card Services for Credit Unions, Inc. in the United States. 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.
Card Services for Credit Unions, Inc. has 1,297 BINs in the dataset, which makes it 7th of 775 banks with a BIN page in the United States. The Card Services for Credit Unions, Inc. BIN list shows all of them with network, type and level.
The United States has 156,869 BINs in the dataset; among the 73,133 that name an issuer, the main networks are Visa (50%), Mastercard (22%), Discover (17%), and 46% are debit. See the United States BIN list or the United States card generator.
Mastercard number format for BIN 551606
| Starts with | 551606 (the BIN). First digit 5: banking and financial |
|---|---|
| Length | 16 digits |
| Security code | 3-digit CVC2 on the back |
| Check digit | The last digit, calculated with the Luhn algorithm |
| Printed as | 5516 0637 5903 8163 |
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.
Nearby BINs
BINs just below and above 551606. Banks often hold consecutive ranges, so neighbours can be sister products of the same issuer.
More BINs from Card Services for Credit Unions, Inc.
All 1,297 BINs of Card Services for Credit Unions, Inc. →
Frequently asked questions
Which bank issued BIN 551606?
BIN 551606 is registered to Card Services for Credit Unions, Inc. in the United States. The dataset lists the website www.cscu.net. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.
Is 551606 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 551606 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 551606?
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 Card Services for Credit Unions, Inc., 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.