FakecreditcardAbout BIN 531621
BIN 531621 is listed as a Mastercard Prepaid Reloadable debit card issued by Caixa Geral de Depositos SA in Portugal. 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). Prepaid products are loaded with funds in advance instead of drawing on a credit line; subscription and recurring-billing flows often handle them separately.
Caixa Geral de Depositos SA has 39 BINs in the dataset, which makes it 4th of 14 banks with a BIN page in Portugal. The Caixa Geral de Depositos SA BIN list shows all of them with network, type and level.
Portugal has 643 BINs in the dataset; among the 523 that name an issuer, the main networks are Visa (64%), Mastercard (22%), American Express (7%), and 36% are debit. See the Portugal BIN list.
Mastercard number format for BIN 531621
| Starts with | 531621 (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 | 5316 2102 3595 3323 |
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 531621. Banks often hold consecutive ranges, so neighbours can be sister products of the same issuer.
More BINs from Caixa Geral de Depositos SA
All 39 BINs of Caixa Geral de Depositos SA →
Frequently asked questions
Which bank issued BIN 531621?
BIN 531621 is registered to Caixa Geral de Depositos SA in Portugal. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.
Is 531621 a debit or a credit card BIN?
It is recorded as debit, product level Prepaid Reloadable. 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 531621 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 531621?
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 Caixa Geral de Depositos SA, 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.