Apparatus

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sensors Mode-S transponder

AE4F25

ICAO 24-bit transponder address

Currently assigned to 167874 · SIKORSKY UH-60 Black Hawk

Hex
AE4F25
Octal
53447445
Decimal
11,423,525
Tail
167874
Type
H60
No current signal · last broadcast 4d ago
Flights observed
14
Distinct callsigns
4
Country
-
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S AE4F25.

Callsign history 4 distinct

Callsign Airline Flights Last seen
HAWK11 - 8 2026-06-16
TRDT15 - 3 2026-06-26
TDNT615 - 2 2026-07-09
TRDT615 - 1 2026-07-07

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-07-09 TDNT615 - Jul 9, 23:40 UTCJul 9, 23:55 UTC15m
2026-07-09 TDNT615 - Jul 9, 21:45 UTCJul 9, 22:05 UTC20m
2026-07-07 TRDT615 - Jul 7, 23:10 UTCJul 7, 23:20 UTC10m
2026-06-26 TRDT15 - Jun 26, 00:39 UTCJun 26, 01:05 UTC25m
2026-06-25 TRDT15 - Jun 25, 23:19 UTCJun 25, 23:24 UTC5m
2026-06-25 TRDT15 - Jun 25, 21:40 UTCJun 25, 22:29 UTC50m
2026-06-16 HAWK11 - Jun 16, 17:40 UTCJun 16, 17:59 UTC20m
2026-06-16 HAWK11 - Jun 16, 15:55 UTCJun 16, 16:39 UTC45m
2026-06-11 HAWK11 - Jun 11, 18:45 UTCJun 11, 19:15 UTC30m
2026-06-11 HAWK11 - Jun 11, 17:20 UTCJun 11, 17:55 UTC35m
2026-06-11 HAWK11 NGU → NGU Jun 11, 17:00 UTCJun 11, 17:15 UTC15m
2026-06-11 HAWK11 - Jun 11, 16:40 UTCJun 11, 16:50 UTC10m
2026-06-04 HAWK11 - Jun 4, 16:25 UTCJun 4, 16:40 UTC15m
2026-06-04 HAWK11 - Jun 4, 15:00 UTCJun 4, 15:10 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 167874 page for operator, model, and routing details .

Mode-S AE4F25 frequently asked

What is Mode-S code AE4F25?
AE4F25 is an ICAO 24-bit transponder address. Assigned to 167874.
Is AE4F25 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE4F25, octal 53447445, decimal 11,423,525.
What flights does AE4F25 operate?
Mode-S AE4F25 has broadcast 4 distinct callsigns, including HAWK11, TRDT15, TDNT615, TRDT615.