EMV Tag Reference
Tools/EMV Tag Reference/9F13
Card (ICC)Format: bLength: 2
9F13

Last Online ATC Register

Tag ID
9F13
Format
b
Length (bytes)
2
Source
Card (ICC)

What it is

ATCApplication Transaction CounterA counter the card increments on every transaction, used to detect replay and cloning.View in glossary → value at the time of the last online transaction; used for velocity checking.

Specification reference

Defined in: EMV 4.x Book 3 (Application Specification), Annex A — Data Element Dictionary

Decode & build this tag

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