Historically, the payments industry used the first 6 digits of a card number to identify the issuer. However, due to the rapid growth of FinTech and digital issuance, the standard has evolved. Understanding BIN granularity is critical for accurate transaction routing and cost management.
The traditional ISO 7812 standard. Most legacy systems are built around this length, but it is no longer sufficient for modern issuer identification as many large banks now share these ranges across different products.
Introduced by Visa and Mastercard in April 2022. Expanding the IIN to 8 digits increased the pool of available identifiers by 100x, allowing for more precise differentiation of card products.
While 8 digits is the new regulatory standard, some major issuers (especially in the US and Europe) further segment their portfolios using 9, 10, or 11 digits.
A 6-digit prefix (e.g., 453211) might be assigned to a major bank. However, within that range:
• 453211 12 — could be a Standard Debit card.
• 453211 89 — could be a Premium Corporate Credit card.
Using only a 6-digit lookup in this scenario leads to incorrect interchange fee calculation and failed risk scoring.
Our database is architected to handle sub-range identification, providing a competitive advantage for high-volume processors:
| Feature | Database Capability |
|---|---|
| Legacy Support | Full compatibility with 6-digit parsing for older ERP/Gateway systems. |
| ISO Compliance | Native 8-digit mapping for all Visa and Mastercard ranges. |
| Deep Segmentation | Support for 9, 10, and 11-digit sub-ranges where issuers apply product-level differentiation. |
For merchants using Interchange-Plus (IC+) pricing, BIN granularity is the difference between profit and loss. Accurate 11-digit identification allows for:
Access the most granular BIN data on the market.
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