BIN 551898 — Lookup & Card Details

BIN 551898 is issued by Banco Nacional De Costa Rica, from Costa Rica, 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 551898, that institution is Banco Nacional De Costa Rica in Costa Rica. The card runs on the mastercard network. Transactions settle in CRC.

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 551898 itself is public metadata — it identifies the issuer, not the cardholder.