Apparatus

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sensors Mode-S transponder

AE5A15

ICAO 24-bit transponder address

Currently assigned to 16-08221 · BOEING-VERTOL CH-47 Chinook

Hex
AE5A15
Octal
53455025
Decimal
11,426,325
Tail
16-08221
Type
H47
No current signal · last broadcast 1d ago
Flights observed
40
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE5A15.

Callsign history 1 distinct

Callsign Airline Flights Last seen
R08221 - 40 2026-07-17

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-07-17 R08221 - Jul 17, 03:05 UTCJul 17, 05:35 UTC2h 30m
2026-07-16 R08221 HOP → HOP Jul 16, 23:55 UTCJul 17, 01:05 UTC1h 10m
2026-07-16 R08221 - Jul 16, 04:20 UTCJul 16, 06:35 UTC2h 15m
2026-07-16 R08221 HOP → HOP Jul 16, 03:20 UTCJul 16, 03:40 UTC20m
2026-07-16 R08221 - Jul 16, 02:15 UTCJul 16, 02:25 UTC10m
2026-07-15 R08221 HOP → HOP Jul 15, 04:45 UTCJul 15, 06:20 UTC1h 35m
2026-07-15 R08221 - Jul 15, 03:15 UTCJul 15, 03:30 UTC15m
2026-07-15 R08221 - Jul 15, 02:15 UTCJul 15, 02:45 UTC30m
2026-07-15 R08221 - Jul 15, 01:15 UTCJul 15, 01:35 UTC20m
2026-07-15 R08221 - Jul 15, 00:15 UTCJul 15, 00:30 UTC15m
2026-07-14 R08221 - Jul 14, 03:55 UTCJul 14, 04:55 UTC1h 0m
2026-07-14 R08221 - Jul 14, 02:50 UTCJul 14, 03:20 UTC30m
2026-07-13 R08221 - Jul 13, 22:55 UTCJul 14, 01:05 UTC2h 10m
2026-07-10 R08221 - Jul 10, 16:10 UTCJul 10, 17:00 UTC50m
2026-07-02 R08221 - Jul 2, 17:50 UTCJul 2, 18:50 UTC1h 0m
2026-07-02 R08221 HOP → FFT Jul 2, 13:40 UTCJul 2, 15:10 UTC1h 30m
2026-07-02 R08221 - Jul 2, 03:30 UTCJul 2, 05:40 UTC2h 10m
2026-06-25 R08221 HOP → HOP Jun 25, 23:30 UTCJun 26, 01:05 UTC1h 35m
2026-06-24 R08221 - Jun 24, 02:24 UTCJun 24, 03:29 UTC1h 5m
2026-06-24 R08221 - Jun 24, 00:25 UTCJun 24, 01:09 UTC45m
2026-06-23 R08221 - Jun 23, 23:29 UTCJun 23, 23:50 UTC20m
2026-06-18 R08221 - Jun 18, 02:50 UTCJun 18, 05:30 UTC2h 40m
2026-06-17 R08221 HOP → HOP Jun 17, 02:55 UTCJun 17, 03:45 UTC50m
2026-06-17 R08221 - Jun 17, 01:00 UTCJun 17, 01:45 UTC45m
2026-06-16 R08221 - Jun 16, 23:05 UTCJun 17, 00:25 UTC1h 20m
2026-06-12 R08221 - Jun 12, 04:35 UTCJun 12, 05:25 UTC50m
2026-06-12 R08221 - Jun 12, 03:25 UTCJun 12, 04:00 UTC35m
2026-06-12 R08221 - Jun 12, 01:35 UTCJun 12, 02:40 UTC1h 5m
2026-06-12 R08221 - Jun 12, 00:45 UTCJun 12, 00:55 UTC10m
2026-06-04 R08221 - Jun 4, 19:20 UTCJun 4, 21:10 UTC1h 50m
2026-06-04 R08221 HOP → HOP Jun 4, 18:00 UTCJun 4, 18:45 UTC45m
2026-06-04 R08221 HOP → HOP Jun 4, 16:45 UTCJun 4, 17:20 UTC35m
2026-06-04 R08221 HOP → HOP Jun 4, 02:25 UTCJun 4, 02:55 UTC30m
2026-06-03 R08221 HOP → HOP Jun 3, 23:50 UTCJun 4, 00:40 UTC50m
2026-05-11 R08221 - May 11, 20:50 UTCMay 11, 22:35 UTC1h 44m
2026-04-30 R08221 HOP → HOP Apr 30, 03:35 UTCApr 30, 05:25 UTC1h 50m
2026-04-30 R08221 HOP → HOP Apr 30, 01:30 UTCApr 30, 03:00 UTC1h 30m
2026-04-21 R08221 HOP → HOP Apr 21, 04:00 UTCApr 21, 04:50 UTC50m
2026-04-20 R08221 - Apr 20, 23:55 UTCApr 21, 00:05 UTC10m
2026-04-20 R08221 - Apr 20, 22:40 UTCApr 20, 22:50 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 16-08221 page for operator, model, and routing details .

Mode-S AE5A15 frequently asked

What is Mode-S code AE5A15?
AE5A15 is an ICAO 24-bit transponder address. Assigned to 16-08221.
Is AE5A15 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 AE5A15, octal 53455025, decimal 11,426,325.
What flights does AE5A15 operate?
Mode-S AE5A15 has broadcast 1 distinct callsign, including R08221.