BIN 551149
5511 4944 3423 8164
BIN 551149 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.
Card number format for this BIN
Every card number that starts with 551149 follows these Mastercard rules. Its last digit is a Luhn check digit calculated from the digits before it, which is why a mistyped number is usually rejected before a payment is even sent.
🇺🇸 Our dataset lists 156,869 BIN ranges issued in United States. See the United States BIN list with its banks, card schemes and card types.
Other BINs from CU Cooperative Systems, LLC
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Open BIN Lookup →Frequently asked questions
What bank issued BIN 551149?
BIN 551149 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 551149 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.