ISO 8583 DE Reference
Format: ansLength: ...999Variable (LLLVAR — 3-digit length prefix)
DE 61

Reserved — Private (POS Data)

Data element
61
Format
ans
Format defined in
ISO 8583:1987
Length
...999
Encoding type
LLLVAR
Bitmap
Primary

What it is

Private use. Mastercard: POS data (terminal attendance, cardholder and card presence, terminal capability). Visa: other amounts.

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
← PreviousDE 60 Reserved — National / Private (Advice/POS Data)Next →DE 62 Reserved — Private (Custom/Trace)