Apparatus

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sensors Mode-S transponder

AE6DC1

ICAO 24-bit transponder address

Currently assigned to 21-03385 · Boeing AH-64E Apache

Hex
AE6DC1
Octal
53466701
Decimal
11,431,361
Tail
21-03385
Type
H64
No current signal · last broadcast 17d ago
Flights observed
4
Distinct callsigns
3
Country
-
Last broadcast
17d ago

Last known position

Most recent position reported by Mode-S AE6DC1.

Callsign history 3 distinct

Callsign Airline Flights Last seen
CHAOS24 - 2 2026-06-30
CHAOS31 - 1 2026-07-01
CHAOS11 - 1 2026-06-25

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-07-01 CHAOS31 - Jul 1, 02:30 UTCJul 1, 02:45 UTC15m
2026-06-30 CHAOS24 - Jun 30, 22:35 UTCJun 30, 22:45 UTC10m
2026-06-25 CHAOS11 - Jun 25, 17:09 UTCJun 25, 17:30 UTC20m
2026-06-24 CHAOS24 - Jun 24, 23:54 UTCJun 25, 00:14 UTC20m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the 21-03385 page for operator, model, and routing details .

Mode-S AE6DC1 frequently asked

What is Mode-S code AE6DC1?
AE6DC1 is an ICAO 24-bit transponder address. Assigned to 21-03385.
Is AE6DC1 broadcasting right now?
No active broadcast right now. Last signal was 17d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE6DC1, octal 53466701, decimal 11,431,361.
What flights does AE6DC1 operate?
Mode-S AE6DC1 has broadcast 3 distinct callsigns, including CHAOS24, CHAOS31, CHAOS11.