BIN 541100 — Lookup & Card Details

BIN 541100 is issued by Banco Santander (Brasil) S.A., from Brazil, on the mastercard network, as a credit card.

A Bank Identification Number (BIN, or Issuer Identification Number / IIN) is the first 6 to 8 digits of any payment card. It tells the payment network which institution issued the card, what kind of card it is, and where it was issued. For BIN 541100, that institution is Banco Santander (Brasil) S.A. in Brazil. The card runs on the mastercard network. Transactions settle in BRL.

Merchants, fraud teams, ad platforms and developers use BIN data to route transactions, localize checkout, detect chargebacks and decide which card products they accept. BIN 541100 itself is public metadata — it identifies the issuer, not the cardholder.