sensors Mode-S transponder

AE59BF

ICAO 24-bit transponder address

Currently assigned to 14-08158 · BOEING-VERTOL CH-47 Chinook

Hex
AE59BF
Octal
53454677
Decimal
11,426,239
Tail
14-08158
Type
H47
No current signal · last broadcast 14h ago
Flights observed
10
Distinct callsigns
1
Country
-
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S AE59BF.

Callsign history 1 distinct

Callsign Airline Flights Last seen
R08158 - 10 2026-05-30

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-05-30 R08158 - May 30, 01:50 UTCMay 30, 02:10 UTC20m
2026-05-30 R08158 - May 30, 00:20 UTCMay 30, 00:40 UTC20m
2026-05-29 R08158 - May 29, 17:05 UTCMay 29, 18:40 UTC1h 35m
2026-05-27 R08158 - May 27, 19:05 UTCMay 27, 19:25 UTC20m
2026-05-27 R08158 - May 27, 05:14 UTCMay 27, 06:44 UTC1h 30m
2026-05-27 R08158 - May 27, 02:59 UTCMay 27, 03:34 UTC35m
2026-05-07 R08158 - May 7, 04:05 UTCMay 7, 05:20 UTC1h 15m
2026-05-07 R08158 - May 7, 02:10 UTCMay 7, 02:40 UTC30m
2026-05-06 R08158 - May 6, 22:30 UTCMay 6, 23:25 UTC55m
2026-04-15 R08158 - Apr 15, 01:30 UTCApr 15, 02:00 UTC30m

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 14-08158 page for operator, model, and routing details .

Mode-S AE59BF frequently asked

What is Mode-S code AE59BF?
AE59BF is an ICAO 24-bit transponder address. Assigned to 14-08158.
Is AE59BF broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE59BF, octal 53454677, decimal 11,426,239.
What flights does AE59BF operate?
Mode-S AE59BF has broadcast 1 distinct callsign, including R08158.