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What does issuer_supports_tokenization mean?

This field indicates whether the issuer supports tokenization services. The only networks to support it at this time are Visa and Mastercard, and the value can either be true or null; it will always be null for other networks. For Mastercard, we pull the information from quarterly MDES files containing bin_min/bin_max ranges. For Visa, we receive this information in their standard file.
Note: MasterCard mixes network token issuance in the same range as PANs, while Visa does not.

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Do Mastercard and Visa network token ranges overlap with PAN ranges?

For Visa, the account ranges are separate. For Mastercard, they are normally separate but could overlap according to Mastercard’s specifications. For token ranges, we recommend 8-digit BIN searches, as both networks use the 8-digit space to issue token ranges.

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What is the multi_account_access_indicator field?

This Visa-specific field indicates whether a card can access multiple underlying funding accounts using a single primary PAN. Values are:
  • M - Multi-account managed by issuer
  • S - Multi-account self-serve by cardholder
  • N - Not a participant (single account)
For all other networks, this field is set to null.