American Express BIN Lookup

Enter the first 6–11 digits of a American Express card number to identify the issuing bank, card type (credit, debit, or prepaid), country, and currency:

This tool returns real data — the same data the API returns on the free tier (10 lookups/day, no credit card required).

American Express (Amex) is both a card issuer and payment network. Amex cards start with 34 or 37 and are 15 digits long. Known for premium cards and merchant services, Amex operates primarily in North America and select international markets.

Everything on this page is available programmatically. One POST request covers American Express and every other major network, with typical responses in under 50ms:

$ curl -X POST "https://api.binlookupapi.com/v1/bin" \
    -H "Authorization: Bearer YOUR_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{"number": 371449}'

{
  "mode": "live",
  "data": {
    "bin": "371449",
    "scheme": "amex",
    "funding": "credit",
    "brand": "AMERICAN EXPRESS",
    "category": null,
    "country": {
      "code": "US",
      "name": "UNITED STATES"
    },
    "issuer": {
      "name": "AMERICAN EXPRESS",
      "website": null,
      "phone": null
    },
    "currency": "USD",
    "prepaid": false,
    "commercial": false
  },
  "meta": {
    "longer_bin_available": true
  }
}

meta.longer_bin_available signals that submitting more digits returns even more precise data — included on the $50/mo plan and up. See the API reference.

You start on the free tier with 10 real lookups per day. Test mode includes every plan feature, so you can build the full integration before paying anything. See the quickstart guide for details.

No hidden fees. No overage charges. See full pricing →

How do I look up a American Express BIN?

Enter the first 6–11 digits of the American Express card number in the lookup tool at the top of this page. You'll get the issuing bank, card type (credit, debit, or prepaid), country, and currency back instantly. The same lookup is available programmatically via our API.

How do I recognise a American Express card number?

American Express cards start with 34, 37 and are 15 digits long. The BIN — traditionally the first 6 digits, now up to 8 under the industry's expanded standard — identifies the issuing bank and card product. Our API accepts prefixes of up to 11 digits for the most precise match.

What does a American Express BIN lookup return?

Each lookup returns the card scheme, funding type (credit, debit, or prepaid), brand and category, issuing bank with website and phone where available, country, currency, and commercial/prepaid flags.

Is this American Express BIN lookup free?

Yes. The tool on this page is free, and every API account starts on the free tier with 10 real lookups per day — no credit card required. Paid plans start at $10/month for 30,000 lookups.

Can I look up other card brands with the same API?

Yes. One endpoint covers every major network — Visa, Mastercard, American Express, Discover, JCB, UnionPay, and Diners Club. Send any BIN and the response tells you which scheme it belongs to.

How current is the American Express BIN data?

Minor updates ship weekly and a major database refresh ships every four weeks, the latter including retirement of withdrawn records. That matters for American Express in particular, because ranges get reassigned as issuers merge and card programmes close — a BIN list that only ever grows will name issuers who no longer hold the range. Every refresh is published to our changelog.

How many digits do I need for an accurate American Express lookup?

At least 6 digits; the API accepts up to 11. Longer prefixes return more precise results, and on plans with the meta feature the response includes longer_bin_available, which tells you when submitting more digits would return more specific data.

The same American Express prefix can only belong to one issuer in one country. Browse American Express and other issuers by market:

Issuer pages with BIN ranges verified against the live dataset: