BIN 378091 — Lookup & Card Details

Check bank, country, card type, and issuer information for BIN 378091.

What is BIN 378091?

BIN 378091 is on the American Express 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 American Express network.

American Express cards begin with 34 or 37 and run on Amex's own closed-loop network.

Payment processors read these digits on every transaction: they drive routing decisions, currency handling at checkout, fraud scoring and card-product acceptance rules. BIN 378091 carries no personal information: it maps to an issuing institution and card program, never to an individual account or person.

amex

BIN 378091, digit by digit

Each position in a BIN carries defined meaning under ISO/IEC 7812. Here is how the 6 digits of 378091 break down.

3Major Industry Identifier — Travel & entertainment (Amex, Diners, JCB)

7Issuer range digit 2 of the 6-digit prefix

8Issuer range digit 3 of the 6-digit prefix

0Issuer range digit 4 of the 6-digit prefix

9Issuer range digit 5 of the 6-digit prefix

1Issuer range digit 6 of the 6-digit prefix

BIN 378091 — frequently asked questions

Which bank issued BIN 378091?

The live registry lookup doesn't currently return a bank name for BIN 378091. The prefix resolves to the American Express network, and issuer details may appear as registries update — newly issued and virtual ranges often lag.

What card network does BIN 378091 run on?

BIN 378091 runs on the American Express network. American Express cards begin with 34 or 37 and run on Amex's own closed-loop network.

Is it legal to look up BIN 378091?

Yes. BIN 378091 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

378081 378082 378083 378084

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