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BIN 666721 — Lookup & Card Details
Check bank, country, card type, and issuer information for BIN 666721.
What is BIN 666721?
BIN 666721 is on the Maestro / debit network network.
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. The card runs on the Maestro / debit network network.
This BIN falls in the 50/56–69 space used by Maestro and regional debit, store and private-label card programs — ranges that sit outside the major global credit networks but are routed through their own debit rails.
Payment processors read these digits on every transaction: they drive routing decisions, currency handling at checkout, fraud scoring and card-product acceptance rules. BIN 666721 carries no personal information: it maps to an issuing institution and card program, never to an individual account or person.
BIN 666721, digit by digit
Each position in a BIN carries defined meaning under ISO/IEC 7812. Here is how the 6 digits of 666721 break down.
BIN 666721 — frequently asked questions
Which bank issued BIN 666721?
The live registry lookup doesn't currently return a bank name for BIN 666721. The prefix resolves to the Maestro / debit network network, and issuer details may appear as registries update — newly issued and virtual ranges often lag.
What card network does BIN 666721 run on?
BIN 666721 runs on the Maestro / debit network network. This BIN falls in the 50/56–69 space used by Maestro and regional debit, store and private-label card programs — ranges that sit outside the major global credit networks but are routed through their own debit rails.
Is it legal to look up BIN 666721?
Yes. BIN 666721 is public infrastructure data under the ISO/IEC 7812 standard — it identifies the issuing program, not any cardholder. No personal or account data is involved in a BIN lookup.
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