ISO 8583 DE Reference
Format: ansLength: 8Fixed length
DE 41

Card Acceptor Terminal Identification

Data element
41
Format
ans
Length
8
Encoding type
fixed
Bitmap
Primary

What it is

Identifies the specific terminal (TID) at the merchant location. Key for reconciliation and fraud tracing.

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

Related data elements

DE 42Card Acceptor Identification CodeDE 43Card Acceptor Name / Location
← PreviousDE 40 Service Restriction CodeNext →DE 42 Card Acceptor Identification Code