BIN 523971
5239 7162 3012 1777
BIN 523971 is the Issuer Identification Number (IIN) at the start of a card number. It is issued on the Mastercard network as a debit card at the Standard level. The issuing bank is CU Cooperative Systems, LLC, based in United States. A BIN identifies the bank and card range only — it never reveals an account number, balance or cardholder.
Other BINs from CU Cooperative Systems, LLC
Check another BIN
Enter any card's first 6–8 digits to look up its bank, scheme, type and country.
Open BIN Lookup →Frequently asked questions
What bank issued BIN 523971?
BIN 523971 belongs to CU Cooperative Systems, LLC in United States. A BIN identifies the issuing bank and card range — never an individual account or cardholder.
Is BIN 523971 a credit or debit card?
It is a debit card on the Mastercard network.
Can I get full card numbers from a BIN?
No. A BIN is only the first 6–8 digits and public routing information. It reveals the scheme, type, bank and country, but never a full card number, balance or cardholder. The sample on this page is randomly generated and holds no funds.