BIN 521329 — Lookup & Card Details

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Check bank, country, card type, and issuer information for BIN 521329.

What is BIN 521329?

BIN 521329 is on the Mastercard 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 Mastercard network.

Mastercard is a global network whose BINs fall in the 51–55 and 2221–2720 ranges, accepted at merchants worldwide.

Payment processors read these digits on every transaction: they drive routing decisions, currency handling at checkout, fraud scoring and card-product acceptance rules. BIN 521329 carries no personal information: it maps to an issuing institution and card program, never to an individual account or person.

mastercard

BIN 521329, digit by digit

Each position in a BIN carries defined meaning under ISO/IEC 7812. Here is how the 6 digits of 521329 break down.

5Major Industry Identifier — Banking & financial (Mastercard, Maestro)

2Issuer range digit 2 of the 6-digit prefix

1Issuer range digit 3 of the 6-digit prefix

3Issuer range digit 4 of the 6-digit prefix

2Issuer range digit 5 of the 6-digit prefix

9Issuer range digit 6 of the 6-digit prefix

BIN 521329 — frequently asked questions

Which bank issued BIN 521329?

The live registry lookup doesn't currently return a bank name for BIN 521329. The prefix resolves to the Mastercard network, and issuer details may appear as registries update — newly issued and virtual ranges often lag.

What card network does BIN 521329 run on?

BIN 521329 runs on the Mastercard network. Mastercard is a global network whose BINs fall in the 51–55 and 2221–2720 ranges, accepted at merchants worldwide.

Is it legal to look up BIN 521329?

Yes. BIN 521329 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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Related BIN ranges

Browse neighboring BINs — useful when pinpointing a card range.

Lower BINs

521319 521320 521321 521322

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