sensors Mode-S transponder

AE4D39

ICAO 24-bit transponder address

Currently assigned to 168547

Hex
AE4D39
Octal
53446471
Decimal
11,423,033
Tail
168547
Type
H60
No current signal · last broadcast 16h ago
Flights observed
42
Distinct callsigns
6
Country
-
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S AE4D39.

Callsign history 6 distinct

Callsign Airline Flights Last seen
KRKN40 - 23 2026-07-08
VVBR40 - 11 2026-07-17
VVBR45 - 4 2026-07-17
KN40 - 2 2026-05-22
KRAKN40 - 1 2026-07-18
KRAKN11 - 1 2026-06-30

Recent flights last 42

DateFlightRouteTakeoffLandingDuration
2026-07-18 KRAKN40 - Jul 18, 00:39 UTCJul 18, 02:25 UTC1h 45m
2026-07-17 VVBR40 - Jul 17, 22:55 UTCJul 17, 23:50 UTC55m
2026-07-17 VVBR45 - Jul 17, 20:25 UTCJul 17, 20:50 UTC25m
2026-07-17 VVBR45 - Jul 17, 20:00 UTCJul 17, 20:20 UTC20m
2026-07-17 VVBR45 - Jul 17, 19:25 UTCJul 17, 19:55 UTC30m
2026-07-17 VVBR45 - Jul 17, 17:55 UTCJul 17, 18:50 UTC55m
2026-07-08 KRKN40 - Jul 8, 15:20 UTCJul 8, 15:30 UTC10m
2026-07-08 KRKN40 - Jul 8, 14:00 UTCJul 8, 14:50 UTC50m
2026-07-01 KRKN40 - Jul 1, 00:50 UTCJul 1, 02:20 UTC1h 30m
2026-06-30 KRKN40 - Jun 30, 22:50 UTCJun 30, 23:55 UTC1h 5m
2026-06-30 KRKN40 - Jun 30, 22:15 UTCJun 30, 22:40 UTC25m
2026-06-30 KRAKN11 - Jun 30, 15:00 UTCJun 30, 17:15 UTC2h 15m
2026-06-29 VVBR40 - Jun 29, 17:24 UTCJun 29, 18:19 UTC55m
2026-06-29 VVBR40 - Jun 29, 16:35 UTCJun 29, 16:50 UTC15m
2026-06-26 VVBR40 - Jun 26, 20:34 UTCJun 26, 20:44 UTC10m
2026-06-26 VVBR40 - Jun 26, 19:35 UTCJun 26, 19:45 UTC10m
2026-06-26 VVBR40 - Jun 26, 18:54 UTCJun 26, 19:04 UTC10m
2026-06-26 VVBR40 - Jun 26, 17:50 UTCJun 26, 18:29 UTC40m
2026-06-25 KRKN40 - Jun 25, 21:59 UTCJun 25, 22:34 UTC35m
2026-06-13 KRKN40 - Jun 13, 02:05 UTCJun 13, 02:15 UTC10m
2026-06-10 KRKN40 - Jun 10, 20:35 UTCJun 10, 20:45 UTC10m
2026-06-10 KRKN40 - Jun 10, 19:00 UTCJun 10, 19:50 UTC50m
2026-06-10 KRKN40 - Jun 10, 17:20 UTCJun 10, 17:55 UTC35m
2026-06-09 VVBR40 - Jun 9, 21:40 UTCJun 9, 22:00 UTC20m
2026-06-09 VVBR40 - Jun 9, 20:45 UTCJun 9, 21:15 UTC30m
2026-06-09 VVBR40 - Jun 9, 19:45 UTCJun 9, 20:15 UTC30m
2026-06-09 VVBR40 - Jun 9, 17:50 UTCJun 9, 18:40 UTC50m
2026-06-03 KRKN40 - Jun 3, 22:50 UTCJun 3, 23:00 UTC10m
2026-06-03 KRKN40 - Jun 3, 22:05 UTCJun 3, 22:15 UTC10m
2026-06-03 KRKN40 - Jun 3, 20:10 UTCJun 3, 21:25 UTC1h 15m
2026-05-28 KRKN40 - May 28, 19:50 UTCMay 28, 20:15 UTC25m
2026-05-28 KRKN40 - May 28, 15:15 UTCMay 28, 15:25 UTC10m
2026-05-22 KN40 - May 22, 23:45 UTCMay 23, 00:20 UTC35m
2026-05-22 KN40 - May 22, 21:25 UTCMay 22, 22:15 UTC50m
2026-05-08 KRKN40 - May 8, 16:20 UTCMay 8, 17:10 UTC50m
2026-04-17 KRKN40 - Apr 17, 01:20 UTCApr 17, 02:35 UTC1h 15m
2026-04-17 KRKN40 - Apr 17, 00:00 UTCApr 17, 01:15 UTC1h 15m
2026-04-16 KRKN40 - Apr 16, 22:34 UTCApr 16, 22:54 UTC20m
2026-04-16 KRKN40 - Apr 16, 21:14 UTCApr 16, 21:45 UTC30m
2026-04-16 KRKN40 - Apr 16, 19:15 UTCApr 16, 19:55 UTC40m
2026-04-16 KRKN40 - Apr 16, 17:50 UTCApr 16, 18:00 UTC10m
2026-04-16 KRKN40 - Apr 16, 17:00 UTCApr 16, 17:10 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 168547 page for operator, model, and routing details .

Mode-S AE4D39 frequently asked

What is Mode-S code AE4D39?
AE4D39 is an ICAO 24-bit transponder address. Assigned to 168547.
Is AE4D39 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE4D39, octal 53446471, decimal 11,423,033.
What flights does AE4D39 operate?
Mode-S AE4D39 has broadcast 6 distinct callsigns, including KRKN40, VVBR40, VVBR45, KN40, KRAKN40.