sensors Mode-S transponder

AE73F9

ICAO 24-bit transponder address

Currently assigned to 170206

Hex
AE73F9
Octal
53471771
Decimal
11,432,953
Tail
170206
Type
A119
No current signal · last broadcast Jul 12, 21:15 UTC
Flights observed
33
Distinct callsigns
6
Country
-
Last broadcast
Jul 12, 21:15 UTC

Last known position

Most recent position reported by Mode-S AE73F9.

Callsign history 6 distinct

Callsign Airline Flights Last seen
FH709 - 9 2026-06-13
EB709 - 9 2026-07-10
LY709 - 7 2026-06-26
VV8E709 - 4 2026-07-12
VV7E709 - 2 2026-06-28
VV1E709 - 2 2026-05-31

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-07-12 VV8E709 - Jul 12, 20:30 UTCJul 12, 21:15 UTC45m
2026-07-12 VV8E709 - Jul 12, 17:15 UTCJul 12, 17:30 UTC15m
2026-07-10 VV8E709 - Jul 10, 21:05 UTCJul 10, 21:40 UTC35m
2026-07-10 VV8E709 - Jul 10, 19:40 UTCJul 10, 20:05 UTC25m
2026-07-10 EB709 - Jul 10, 17:05 UTCJul 10, 18:00 UTC55m
2026-07-02 EB709 - Jul 2, 14:05 UTCJul 2, 14:25 UTC20m
2026-06-28 VV7E709 - Jun 28, 17:25 UTCJun 28, 18:00 UTC35m
2026-06-26 VV7E709 - Jun 26, 20:29 UTCJun 26, 20:59 UTC30m
2026-06-26 LY709 - Jun 26, 19:14 UTCJun 26, 19:30 UTC15m
2026-06-26 LY709 - Jun 26, 17:40 UTCJun 26, 18:39 UTC1h 0m
2026-06-13 FH709 - Jun 13, 00:10 UTCJun 13, 00:45 UTC35m
2026-06-12 FH709 - Jun 12, 22:05 UTCJun 12, 22:55 UTC50m
2026-06-11 LY709 - Jun 11, 22:20 UTCJun 11, 23:05 UTC45m
2026-06-11 LY709 - Jun 11, 19:25 UTCJun 11, 19:50 UTC25m
2026-06-11 EB709 - Jun 11, 02:55 UTCJun 11, 03:25 UTC30m
2026-06-10 EB709 - Jun 10, 22:50 UTCJun 10, 23:15 UTC25m
2026-06-09 LY709 - Jun 9, 14:10 UTCJun 9, 14:20 UTC10m
2026-05-31 VV1E709 - May 31, 14:05 UTCMay 31, 14:40 UTC35m
2026-05-29 VV1E709 - May 29, 19:35 UTCMay 29, 21:20 UTC1h 45m
2026-05-29 FH709 - May 29, 17:55 UTCMay 29, 18:25 UTC30m
2026-05-29 FH709 - May 29, 16:55 UTCMay 29, 17:05 UTC10m
2026-05-29 FH709 - May 29, 15:15 UTCMay 29, 15:50 UTC35m
2026-05-29 EB709 - May 29, 01:35 UTCMay 29, 02:15 UTC40m
2026-05-22 FH709 - May 22, 00:05 UTCMay 22, 00:55 UTC50m
2026-05-21 LY709 - May 21, 00:35 UTCMay 21, 00:45 UTC10m
2026-05-20 LY709 - May 20, 21:35 UTCMay 20, 22:45 UTC1h 10m
2026-04-22 FH709 - Apr 22, 02:55 UTCApr 22, 03:40 UTC45m
2026-04-22 FH709 - Apr 22, 00:05 UTCApr 22, 00:20 UTC15m
2026-04-18 EB709 - Apr 18, 01:35 UTCApr 18, 02:05 UTC30m
2026-04-18 EB709 - Apr 18, 00:50 UTCApr 18, 01:05 UTC15m
2026-04-17 EB709 - Apr 17, 23:30 UTCApr 18, 00:00 UTC30m
2026-04-17 EB709 - Apr 17, 22:45 UTCApr 17, 23:00 UTC15m
2026-04-16 FH709 - Apr 16, 22:00 UTCApr 16, 22:34 UTC35m

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 170206 page for operator, model, and routing details .

Mode-S AE73F9 frequently asked

What is Mode-S code AE73F9?
AE73F9 is an ICAO 24-bit transponder address. Assigned to 170206.
Is AE73F9 broadcasting right now?
No active broadcast right now. Last signal was Jul 12, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE73F9, octal 53471771, decimal 11,432,953.
What flights does AE73F9 operate?
Mode-S AE73F9 has broadcast 6 distinct callsigns, including FH709, EB709, LY709, VV8E709, VV7E709.