29BINs
3%debit
97%credit
4networks
Citibank appears in the dataset with 29 six-digit BINs, all registered to Hong Kong. By network, Visa leads with 19, then Mastercard (8), UnionPay (1) and Maestro (1). Credit outnumbers debit 28 to 1.
That makes it 12th of 124 issuers we track in Hong Kong, with 2% of the country's BINs that name an issuer.
By product level, the data shows Corporate (4), Corporate Purchasing (3) and Purchasing (2). 10 are marked as business, corporate or commercial.
Phone: +85228600380
Generate test numbers (433342) Hong Kong card generator
Citibank BINs by network
Citibank BIN table
All 29 BINs, sorted by number. “Generate” opens the test card generator with that BIN.
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Other banks in Hong Kong
← All Hong Kong BINs and banks · BIN list by country · BIN checker
Frequently asked questions
Which card networks does Citibank issue?
In our data Citibank has 29 BINs: Visa (19 BINs), Mastercard (8 BINs), UnionPay (1 BIN), Maestro (1 BIN). 3% are debit ranges and 97% credit ranges.
What are the first 6 digits of a Citibank card?
The first 6 digits are the BIN. Citibank BINs include 433342, 433359, 532958; the table above lists all of them. A BIN identifies the bank and card type, never a person or an account.
How do I contact Citibank?
The BIN data lists the phone number +85228600380. Card networks register these details with the BIN and banks change them over time: for anything about your own card, use the phone number printed on the back of the card or the bank’s official app.
Can I make a real, usable Citibank card number from a BIN?
No. A number built from a BIN passes format checks (prefix, length and the Luhn check digit), but no bank issued it, so every real payment with it is declined. To test a checkout use your payment gateway’s sandbox test cards; to pay online without exposing your card, ask Citibank or another issuer for a virtual card.
A BIN identifies the card network and the issuing institution only. It reveals nothing about an individual card,
cardholder or account, and it cannot show whether a card exists or can be charged. Test numbers generated from a BIN are for
development and QA only and are declined by every real payment system.
BIN data: bin-list-data
by Venelin Kochev (a lite version of binlookup.io), licensed under CC BY 4.0.
Changes made by Fakecreditcard: issuer, brand and country names re-cased and standardized, spelling variants of the same issuer merged, malformed phone numbers and web addresses removed.