ISO 8583 DE Reference
Format: anLength: ..25Variable (LLVAR — 2-digit length prefix)
DE 44

Additional Response Data

Data element
44
Format
an
Length
..25
Encoding type
LLVAR
Bitmap
Primary

What it is

Supplementary response information — AVS results, CVV2 results, and network-specific response detail.

Specification reference

Defined in ISO 8583:1987 (base). Card networks publish their own dialect tables (Visa BASE I / V.I.P., Mastercard CIS) that refine formats, lengths, and — for private-use elements — the entire layout. Always confirm against the interface specification you implement.

Decode & build this element

📦ISO 8583 Parser🗺️ISO 8583 Bitmap Decoder
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