sensors Mode-S transponder

AE47A9

ICAO 24-bit transponder address

Currently assigned to 08-20161 · SIKORSKY UH-60 Black Hawk

Hex
AE47A9
Octal
53443651
Decimal
11,421,609
Tail
08-20161
Type
H60
No current signal · last broadcast 6d ago
Flights observed
4
Distinct callsigns
2
Country
-
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S AE47A9.

Callsign history 2 distinct

Callsign Airline Flights Last seen
AMPED29 - 3 2026-07-11
R20161 - 1 2026-07-24

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-07-24 R20161 - Jul 24, 17:30 UTCJul 24, 17:50 UTC20m
2026-07-11 AMPED29 - Jul 11, 19:35 UTCJul 11, 20:00 UTC25m
2026-07-11 AMPED29 - Jul 11, 13:55 UTCJul 11, 14:35 UTC40m
2026-07-11 AMPED29 - Jul 11, 12:15 UTCJul 11, 13:05 UTC50m

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 08-20161 page for operator, model, and routing details .

Mode-S AE47A9 frequently asked

What is Mode-S code AE47A9?
AE47A9 is an ICAO 24-bit transponder address. Assigned to 08-20161.
Is AE47A9 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE47A9, octal 53443651, decimal 11,421,609.
What flights does AE47A9 operate?
Mode-S AE47A9 has broadcast 2 distinct callsigns, including AMPED29, R20161.