ISO 8583 DE Reference
Format: nsLength: ..28Variable (LLVAR — 2-digit length prefix)
DE 34

PAN, Extended

Data element
34
Format
ns
Format defined in
ISO 8583:1987
Length
..28
Encoding type
LLVAR
Bitmap
Primary

What it is

Legacy field for PANs that do not fit DE 2 conventions. Effectively unused in modern networks.

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

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