sensors Mode-S transponder

AE5DF9

ICAO 24-bit transponder address

Currently assigned to 16-5837 · Lockheed Martin AC-130J Ghostrider

Hex
AE5DF9
Octal
53456771
Decimal
11,427,321
Tail
16-5837
Type
C30J
No current signal · last broadcast 5d ago
Flights observed
12
Distinct callsigns
3
Country
-
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S AE5DF9.

Callsign history 3 distinct

Callsign Airline Flights Last seen
SPOKY49 - 7 2026-07-09
165837 - 4 2026-07-01
SPOOKY49 - 1 2026-06-11

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-07-09 SPOKY49 VPS → VPS Jul 9, 14:25 UTCJul 9, 17:25 UTC3h 0m
2026-07-02 SPOKY49 - Jul 2, 17:00 UTCJul 2, 20:30 UTC3h 30m
2026-07-01 165837 - Jul 1, 15:50 UTCJul 1, 20:15 UTC4h 25m
2026-06-30 SPOKY49 - Jun 30, 16:00 UTCJun 30, 19:50 UTC3h 50m
2026-06-11 SPOOKY49 - Jun 11, 18:20 UTCJun 11, 21:15 UTC2h 55m
2026-06-10 165837 - Jun 10, 20:10 UTCJun 10, 20:40 UTC30m
2026-06-10 165837 - Jun 10, 15:30 UTCJun 10, 17:40 UTC2h 10m
2026-06-04 SPOKY49 - Jun 4, 17:55 UTCJun 4, 22:25 UTC4h 30m
2026-06-03 165837 - Jun 3, 18:50 UTCJun 3, 23:35 UTC4h 45m
2026-06-02 SPOKY49 - Jun 2, 20:20 UTCJun 3, 00:45 UTC4h 25m
2026-05-29 SPOKY49 - May 29, 17:25 UTCMay 29, 21:55 UTC4h 30m
2026-05-28 SPOKY49 - May 28, 14:25 UTCMay 28, 16:55 UTC2h 30m

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 16-5837 page for operator, model, and routing details .

Mode-S AE5DF9 frequently asked

What is Mode-S code AE5DF9?
AE5DF9 is an ICAO 24-bit transponder address. Assigned to 16-5837.
Is AE5DF9 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE5DF9, octal 53456771, decimal 11,427,321.
What flights does AE5DF9 operate?
Mode-S AE5DF9 has broadcast 3 distinct callsigns, including SPOKY49, 165837, SPOOKY49.