BIN Checker guide hub
BIN Checker guides
Practical guides for BIN Checker: examples, troubleshooting steps, and links to the matching DN01 tool.
Free BIN checker online — what to expect
How to look up card brand and issuer from 6–8 digits without entering a full PAN.
What is a BIN number?
The first 6–8 digits identify the payment network and issuing bank.
IIN vs BIN — same digits, two names
ISO/IEC 7812 uses IIN; merchants say BIN. Both mean the card prefix.
Check card issuer by BIN
Map a prefix to bank name and country for support and fraud triage.
Visa BIN lookup
Visa cards start with 4 — prefix tables add bank and country.
Mastercard BIN lookup
51–55 and 2221–2720 ranges plus embedded issuer rows.
American Express BIN lookup
Amex uses 34 and 37 prefixes with 15-digit cards.
Discover BIN lookup
6011, 644–649 and 65 prefixes identify Discover.
Debit vs credit BIN type
Issuer files mark debit, credit or prepaid — when unknown, only network shows.
Prepaid card BIN check
Prepaid BINs often share networks with debit — read the type field.
BIN database for developers
Use DN01 API tokens for server-side BIN checks in checkout flows.
PCI DSS — enter BIN only
Never paste full card numbers into free tools; 6–8 digits are enough.
First 6 digits of a card
The minimum BIN length in most issuer files.
8-digit IIN / extended BIN
Longer prefixes reduce collisions between issuers.
Luhn algorithm vs BIN lookup
Luhn validates full PAN length; BIN tools only need the prefix.
Stripe test BIN 424242
Common sandbox Visa prefix — safe for integration tests.
Payment gateway BIN checks
Gateways enrich authorizations with issuer metadata from BIN.
Fraud prevention and BIN country
Cross-border mismatch between IP and BIN country is a signal, not proof.
Chargebacks and BIN analysis
Issuer name from BIN helps route disputes to the right bank.
E-commerce BIN verification
Validate network before 3DS to reduce false declines.
BIN country lookup
Country code from issuer file — useful for AVS and compliance.
Issuing bank from BIN
Embedded tables map popular prefixes to bank brands.
Card brand detection from prefix
IIN rules identify Visa, Mastercard, Amex, Discover, JCB and more.
UnionPay BIN lookup
Cards starting with 62 are often UnionPay.
JCB BIN lookup
3528–3589 range identifies JCB issuers.
Diners Club BIN
300–305, 36 and 38–39 prefixes.
Maestro BIN lookup
Debit network overlapping Mastercard ranges.
Mir card BIN (Russia)
2200–2204 prefixes for the Mir national system.
Elo BIN (Brazil)
Brazilian domestic scheme alongside Visa/Mastercard.
Corporate card BIN
Commercial cards may show business category in issuer files.
Virtual card BIN
Neobank virtual cards share BIN ranges with physical products.
Gift card BIN / stored value
Often prepaid type in BIN databases.
Healthcare / HSA card BIN
Specialized debit BINs for benefits cards.
Travel co-brand card BIN
Co-branded BINs still resolve to a network + issuer.
BIN ranges explained
How networks allocate IIN blocks to banks.
ISO/IEC 7812 and IIN
The standard behind BIN length and structure.
Card level — classic, gold, platinum
Some databases expose product level per BIN.
Cross-border BIN mismatches
Customer IP vs issuing country — investigation hint.
3DS and BIN issuer data
Issuer metadata helps route challenge flows.
Recurring billing BIN checks
Verify network before storing credentials for MIT.
Webhook BIN metadata
Many PSPs attach brand and country to payment events.
BIN checker API for monitoring
DN01 API for nightly prefix validation jobs.
Declined transaction — wrong network?
Customer typo vs unsupported brand — BIN check clarifies.
Neobank BIN ranges
Fintech issuers recycle BIN blocks across products.
PayPal prepaid BIN
Prepaid Mastercard BINs for wallet cards.
Apple Pay and visible BIN
DPAN tokens may differ from funding BIN — know your PSP field.
Google Pay BIN metadata
Wallet flows still expose issuer brand in many APIs.
BIN lookup for support tickets
Paste prefix, attach issuer row to Zendesk.
Free BIN checker privacy
DN01 rejects full card numbers — BIN digits only.
BIN vs PAN vs token
Vocabulary for payments engineering interviews.