BIN 371234

BIN 371234 identifies a American Express credit card issued by American Express US Consumer in United States. Card numbers in this range are 15 digits long and belong to the Personal product tier. Enter a longer prefix below for a more precise match — the API accepts 6 to 11 digits.

The first digit, 3, is the Major Industry Identifier under ISO/IEC 7812 and is reserved for travel and entertainment networks — American Express, Diners Club and JCB. American Express card numbers start with 34, 37 and run to 15 digits, so the prefix alone is enough to identify the network before any lookup happens.

The full 6-digit prefix narrows that down to one product from one issuer. American Express US Consumer holds this range and issues it as a credit card, meaning purchases draw on a credit line and are settled later. The Personal level marks it as a consumer card issued to an individual rather than a business. The record carries no commercial flag, so this is a consumer product.

The country is that of the issuing bank, United States. It is the most useful single field for fraud screening: a mismatch between the issuing country and the billing or shipping country is one of the strongest signals available before authorisation. See the United States BIN lookup for other issuers in the same market.

A 15-digit American Express number in this range breaks down as follows:

The BIN describes the card product. Everything after it is specific to one account and should never be sent to a lookup service — our API rejects anything longer than 11 digits and redacts it from logs.

1. Check the prefix. A lookup on 371234 confirms the range is live and returns the issuer, funding type and country above. A prefix that returns 404 was never allocated or has been retired.
2. Check the full number with Luhn. The final digit is a checksum over the rest. A number that fails it was mistyped or generated. Use the Luhn calculator to see the arithmetic.
3. Submit more digits if you have them. Issuers subdivide 6-digit ranges. An 8-digit lookup on this range may resolve to a more specific product than the 6-digit record, and the meta.longer_bin_available field tells you when that is the case.

The same record is available programmatically from one POST request:

$ curl -X POST "https://api.binlookupapi.com/v1/bin" \
    -H "Authorization: Bearer YOUR_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{"number": 371234}'

{
  "mode": "live",
  "data": {
    "bin": "371234",
    "scheme": "amex",
    "funding": "credit",
    "brand": "AMERICAN EXPRESS",
    "category": "Personal",
    "country": {
      "code": "US",
      "name": "United States"
    },
    "issuer": {
      "name": "American Express US Consumer"
    },
    "commercial": false
  }
}

Every field above comes from the live dataset. Where a record is missing an issuer, card type, or country, we don't publish a page for it. See the API reference →

BIN data describes a card product, not a card. Nothing here says whether a particular number beginning 371234 was ever issued, whether it is active, what its balance is, or who holds it. Those answers only come from an authorisation request to American Express US Consumer. For the broader picture, read what a BIN number is and how it is structured.

Is BIN 371234 a credit or debit card?

BIN 371234 is a American Express credit card. That means purchases draw on a credit line and are settled later.

Which bank issues cards starting with 371234?

Cards beginning 371234 are issued by American Express US Consumer in United States. Issuers hold many ranges, so American Express US Consumer also issues cards under other prefixes, and a lookup on those returns the same issuer with a different product.

What country is BIN 371234 from?

United States (ISO code US). This is the country of the issuing bank, not necessarily where the cardholder lives or where the card is being used.

How many digits does a card starting with 371234 have?

15. The first 6 identify the issuer range, the next 8 identify the account, and the final digit is a Luhn check digit that catches typos.

Does a card number starting with 371234 mean the card is valid?

No. The BIN only confirms the prefix belongs to a real American Express range issued by American Express US Consumer. Whether a specific number was ever issued, is active, or has funds can only be established by an authorisation against the issuer.