sensors Mode-S transponder

39E0F8

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HYHY · AIRBUS HELICOPTERS EC-130

Hex
39E0F8
Octal
16360370
Decimal
3,793,144
Country
FR
Tail
F-HYHY
Type
EC30
No current signal · last broadcast 7d ago
Flights observed
23
Distinct callsigns
1
Country
FR
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S 39E0F8.

Country allocation

The ICAO 24-bit address 39E0F8 falls within the block assigned to France (FR) by ICAO Annex 10, Volume III. Every aircraft registered in France receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
FHYHY - 23 2026-06-07

Recent flights last 23

DateFlightRouteTakeoffLandingDuration
2026-06-07 FHYHY - Jun 7, 09:50 UTCJun 7, 10:30 UTC40m
2026-06-07 FHYHY - Jun 7, 08:15 UTCJun 7, 08:35 UTC20m
2026-06-06 FHYHY - Jun 6, 16:45 UTCJun 6, 17:00 UTC15m
2026-06-06 FHYHY - Jun 6, 15:15 UTCJun 6, 15:54 UTC40m
2026-06-06 FHYHY - Jun 6, 13:05 UTCJun 6, 14:00 UTC55m
2026-06-04 FHYHY - Jun 4, 13:05 UTCJun 4, 13:30 UTC25m
2026-06-02 FHYHY - Jun 2, 09:35 UTCJun 2, 10:20 UTC45m
2026-06-01 FHYHY - Jun 1, 14:15 UTCJun 1, 14:25 UTC10m
2026-05-29 FHYHY - May 29, 18:20 UTCMay 29, 18:35 UTC15m
2026-05-29 FHYHY - May 29, 06:45 UTCMay 29, 06:55 UTC10m
2026-05-29 FHYHY - May 29, 05:55 UTCMay 29, 06:15 UTC20m
2026-05-23 FHYHY - May 23, 17:15 UTCMay 23, 17:45 UTC30m
2026-05-23 FHYHY - May 23, 09:00 UTCMay 23, 09:15 UTC15m
2026-05-16 FHYHY - May 16, 15:10 UTCMay 16, 15:50 UTC40m
2026-05-16 FHYHY - May 16, 09:06 UTCMay 16, 09:45 UTC40m
2026-05-16 FHYHY - May 16, 08:11 UTCMay 16, 08:20 UTC10m
2026-05-01 FHYHY - May 1, 14:25 UTCMay 1, 14:40 UTC15m
2026-05-01 FHYHY - May 1, 08:40 UTCMay 1, 09:05 UTC25m
2026-04-30 FHYHY - Apr 30, 13:00 UTCApr 30, 13:20 UTC20m
2026-04-30 FHYHY - Apr 30, 09:30 UTCApr 30, 09:45 UTC15m
2026-04-29 FHYHY - Apr 29, 13:30 UTCApr 29, 14:25 UTC55m
2026-04-29 FHYHY - Apr 29, 10:30 UTCApr 29, 10:45 UTC15m
2026-04-19 FHYHY - Apr 19, 08:25 UTCApr 19, 08:35 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 F-HYHY page for operator, model, and routing details .

Mode-S 39E0F8 frequently asked

What is Mode-S code 39E0F8?
39E0F8 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HYHY.
Where is Mode-S 39E0F8 registered?
Mode-S code 39E0F8 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39E0F8 broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39E0F8, octal 16360370, decimal 3,793,144.
What flights does 39E0F8 operate?
Mode-S 39E0F8 has broadcast 1 distinct callsign, including FHYHY.