BIN 491903 — Lookup & Card Details

BIN 491903 is issued by Tatra Banka, A.S., from Slovakia, on the visa 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 491903, that institution is Tatra Banka, A.S. in Slovakia. The card runs on the visa network. Transactions settle in EUR.

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 491903 itself is public metadata — it identifies the issuer, not the cardholder.