Apparatus

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sensors Mode-S transponder

AE4D5F

ICAO 24-bit transponder address

Currently assigned to 168585 · SIKORSKY UH-60 Black Hawk

Hex
AE4D5F
Octal
53446537
Decimal
11,423,071
Tail
168585
Type
H60
No current signal · last broadcast 1d ago
Flights observed
13
Distinct callsigns
2
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE4D5F.

Callsign history 2 distinct

Callsign Airline Flights Last seen
CHRGR11 - 10 2026-04-16
CHRGR25 - 3 2026-04-15

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-16 CHRGR11 - Apr 16, 20:20 UTCApr 16, 21:10 UTC50m
2026-04-16 CHRGR11 - Apr 16, 18:30 UTCApr 16, 19:00 UTC30m
2026-04-16 CHRGR11 - Apr 16, 18:00 UTCApr 16, 18:05 UTC5m
2026-04-16 CHRGR11 - Apr 16, 16:20 UTCApr 16, 16:30 UTC10m
2026-04-15 CHRGR25 - Apr 15, 23:20 UTCApr 15, 23:30 UTC10m
2026-04-15 CHRGR25 - Apr 15, 21:05 UTCApr 15, 21:40 UTC35m
2026-04-15 CHRGR25 - Apr 15, 20:15 UTCApr 15, 21:00 UTC45m
2026-04-15 CHRGR11 - Apr 15, 00:55 UTCApr 15, 02:30 UTC1h 35m
2026-04-15 CHRGR11 - Apr 15, 00:30 UTCApr 15, 00:50 UTC20m
2026-04-14 CHRGR11 - Apr 14, 23:35 UTCApr 15, 00:20 UTC45m
2026-04-14 CHRGR11 - Apr 14, 21:20 UTCApr 14, 22:30 UTC1h 10m
2026-04-14 CHRGR11 - Apr 14, 20:10 UTCApr 14, 20:40 UTC30m
2026-04-14 CHRGR11 - Apr 14, 19:05 UTCApr 14, 19:15 UTC10m

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 168585 page for operator, model, and routing details .

Mode-S AE4D5F frequently asked

What is Mode-S code AE4D5F?
AE4D5F is an ICAO 24-bit transponder address. Assigned to 168585.
Is AE4D5F broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE4D5F, octal 53446537, decimal 11,423,071.
What flights does AE4D5F operate?
Mode-S AE4D5F has broadcast 2 distinct callsigns, including CHRGR11, CHRGR25.