8-Digit BIN Lookup: What Stripe and Adyen Return
In its March 2022 position paper on 8-digit BINs, Visa reported that "tables purchased off the internet are roughly 30% accurate." If your checkout decides debit or credit, consumer or commercial, UK or foreign from a downloaded list keyed on six digits, that is the quality of data behind the decision. The pages ranking for "8 digit bin" stop at the April 2022 deadline, some still in the future…
An 8-digit BIN lookup refers to the process of retrieving information based on the leading digits of a payment card number. This lookup is performed by Stripe and Adyen, two major payment processing platforms. Visa's 2022 position paper stated that 8-digit BINs are roughly 30% accurate when derived from internet-purchased tables.
These lookup tables determine critical factors such as whether a transaction is debit or credit, consumer or commercial, and if the transaction is occurring in the UK or abroad. The 8-digit BIN is synonymous with the term IIN (issuer identification number), which identifies the card issuer and the type of card product. The length of the BIN does not increase the overall card number length; Visa's cards remain 16 digits long, with the BIN taking up two digits from the account number.
Despite the move to 8-digit BINs by Visa and Mastercard in 2022, six-digit BINs are still valid, and issuers can choose to maintain them or split them.
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