BIN 400975 — Lookup & Card Details
Check bank, country, card type, and issuer information for BIN 400975.
What is BIN 400975?
BIN 400975 is issued by Citibank (Hong Kong) Limited, from Hong Kong, on the visa 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 400975, that institution is Citibank (Hong Kong) Limited in Hong Kong. The card runs on the visa network. Transactions settle in HKD.
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 400975 itself is public metadata — it identifies the issuer, not the cardholder.
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