sensors Mode-S transponder

AE73E4

ICAO 24-bit transponder address

Currently assigned to 170185 · AGUSTA AW-119 Koala

Hex
AE73E4
Octal
53471744
Decimal
11,432,932
Tail
170185
Type
A119
No current signal · last broadcast 13d ago
Flights observed
39
Distinct callsigns
6
Country
-
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S AE73E4.

Callsign history 6 distinct

Callsign Airline Flights Last seen
EB703 - 16 2026-06-16
FH703 - 13 2026-06-30
LY703 - 5 2026-06-29
LY703Z - 2 2026-05-20
FH703Z - 2 2026-06-17
EB703Z - 1 2026-06-12

Recent flights last 39

DateFlightRouteTakeoffLandingDuration
2026-06-30 FH703 - Jun 30, 14:10 UTCJun 30, 14:20 UTC10m
2026-06-29 LY703 - Jun 29, 20:19 UTCJun 29, 20:49 UTC30m
2026-06-29 LY703 - Jun 29, 18:19 UTCJun 29, 19:00 UTC40m
2026-06-29 LY703 - Jun 29, 13:54 UTCJun 29, 14:44 UTC50m
2026-06-17 FH703Z - Jun 17, 20:40 UTCJun 17, 20:55 UTC15m
2026-06-17 FH703Z - Jun 17, 17:05 UTCJun 17, 17:40 UTC35m
2026-06-16 EB703 - Jun 16, 03:10 UTCJun 16, 03:25 UTC15m
2026-06-16 EB703 - Jun 16, 02:24 UTCJun 16, 02:34 UTC10m
2026-06-15 EB703 - Jun 15, 23:45 UTCJun 16, 00:50 UTC1h 5m
2026-06-15 EB703 - Jun 15, 22:15 UTCJun 15, 22:40 UTC25m
2026-06-15 EB703 - Jun 15, 20:25 UTCJun 15, 21:09 UTC45m
2026-06-12 EB703Z - Jun 12, 20:30 UTCJun 12, 20:45 UTC15m
2026-06-10 FH703 - Jun 10, 01:15 UTCJun 10, 01:55 UTC40m
2026-06-09 FH703 - Jun 9, 22:30 UTCJun 9, 22:40 UTC10m
2026-06-09 FH703 - Jun 9, 17:45 UTCJun 9, 18:50 UTC1h 5m
2026-06-09 FH703 - Jun 9, 14:00 UTCJun 9, 14:20 UTC20m
2026-06-09 FH703 - Jun 9, 03:40 UTCJun 9, 04:20 UTC40m
2026-06-09 FH703 - Jun 9, 03:15 UTCJun 9, 03:35 UTC20m
2026-06-09 FH703 - Jun 9, 01:40 UTCJun 9, 02:15 UTC35m
2026-05-20 LY703Z - May 20, 22:55 UTCMay 20, 23:05 UTC10m
2026-05-20 LY703Z - May 20, 19:35 UTCMay 20, 19:45 UTC10m
2026-05-20 LY703 - May 20, 17:00 UTCMay 20, 17:25 UTC25m
2026-05-20 LY703 - May 20, 16:05 UTCMay 20, 16:25 UTC20m
2026-05-20 FH703 - May 20, 01:35 UTCMay 20, 02:05 UTC30m
2026-05-19 FH703 - May 19, 21:30 UTCMay 19, 22:20 UTC50m
2026-05-19 FH703 - May 19, 18:35 UTCMay 19, 18:45 UTC10m
2026-05-14 FH703 - May 14, 13:35 UTCMay 14, 13:50 UTC15m
2026-05-12 EB703 - May 12, 23:55 UTCMay 13, 00:40 UTC45m
2026-05-12 EB703 - May 12, 21:30 UTCMay 12, 22:45 UTC1h 15m
2026-05-12 EB703 - May 12, 18:35 UTCMay 12, 19:35 UTC1h 0m
2026-05-11 EB703 - May 11, 22:05 UTCMay 11, 22:15 UTC10m
2026-05-07 FH703 - May 7, 01:00 UTCMay 7, 01:55 UTC55m
2026-05-05 EB703 - May 5, 01:25 UTCMay 5, 02:35 UTC1h 10m
2026-05-05 EB703 - May 5, 00:00 UTCMay 5, 00:10 UTC10m
2026-04-13 EB703 - Apr 13, 22:50 UTCApr 13, 23:45 UTC55m
2026-04-13 EB703 - Apr 13, 21:05 UTCApr 13, 21:45 UTC40m
2026-04-13 EB703 - Apr 13, 19:50 UTCApr 13, 20:05 UTC15m
2026-04-13 EB703 - Apr 13, 19:35 UTCApr 13, 20:05 UTC30m
2026-04-13 EB703 - Apr 13, 17:50 UTCApr 13, 18:15 UTC25m

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 170185 page for operator, model, and routing details .

Mode-S AE73E4 frequently asked

What is Mode-S code AE73E4?
AE73E4 is an ICAO 24-bit transponder address. Assigned to 170185.
Is AE73E4 broadcasting right now?
No active broadcast right now. Last signal was 13d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE73E4, octal 53471744, decimal 11,432,932.
What flights does AE73E4 operate?
Mode-S AE73E4 has broadcast 6 distinct callsigns, including EB703, FH703, LY703, LY703Z, FH703Z.