issuerInformation. accountPrefix {#issuer-info-acct-prefix}
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First six or eight digits of the payment account number (PAN).  
The length of the field is determined by PCI-DSS standards for truncation. For more information about formats for PAN truncation, see [What-are-acceptable-formats-for-truncation-of-primary-account-numbers](https://pcissc.secure.force.com/faq/articles/Frequently_Asked_Question/What-are-acceptable-formats-for-truncation-of-primary-account-numbers "").  
If you have questions about receiving this field, contact customer support.

Specifications {#issuer-info-acct-prefix_Specifications}
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* **Data Type:** String
* **Data Length:** 8

Mapping Information {#issuer-info-acct-prefix_Mapping}
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No corresponding fields.