BIN 544370 — Lookup & Card Details

BIN 544370 is issued by Velobank S.A., from Poland, on the mastercard network, as a debit 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 544370, that institution is Velobank S.A. in Poland. The card runs on the mastercard network. Transactions settle in PLN.

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 544370 itself is public metadata — it identifies the issuer, not the cardholder.