Apparatus

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sensors Mode-S transponder

39ADA0

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HLNA · AIRBUS HELICOPTERS EC-135/635

Hex
39ADA0
Octal
16326640
Decimal
3,780,000
Country
FR
Tail
F-HLNA
Type
EC35
No current signal · last broadcast 18d ago
Flights observed
129
Distinct callsigns
1
Country
FR
Last broadcast
18d ago

Last known position

Most recent position reported by Mode-S 39ADA0.

Country allocation

The ICAO 24-bit address 39ADA0 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
SAMU24 - 129 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAMU24 - Jul 26, 20:35 UTCJul 26, 21:00 UTC25m
2026-07-26 SAMU24 - Jul 26, 20:00 UTCJul 26, 20:15 UTC15m
2026-07-20 SAMU24 - Jul 20, 19:35 UTCJul 20, 20:10 UTC35m
2026-07-20 SAMU24 - Jul 20, 18:45 UTCJul 20, 19:05 UTC20m
2026-07-15 SAMU24 - Jul 15, 20:25 UTCJul 15, 20:35 UTC10m
2026-07-14 SAMU24 - Jul 14, 19:45 UTCJul 14, 20:40 UTC55m
2026-07-14 SAMU24 - Jul 14, 19:00 UTCJul 14, 19:15 UTC15m
2026-07-13 SAMU24 - Jul 13, 22:55 UTCJul 13, 23:25 UTC30m
2026-07-13 SAMU24 - Jul 13, 22:05 UTCJul 13, 22:25 UTC20m
2026-07-11 SAMU24 - Jul 11, 23:45 UTCJul 12, 00:15 UTC30m
2026-07-11 SAMU24 - Jul 11, 22:55 UTCJul 11, 23:15 UTC20m
2026-07-11 SAMU24 - Jul 11, 08:30 UTCJul 11, 08:40 UTC10m
2026-07-09 SAMU24 - Jul 9, 12:55 UTCJul 9, 13:25 UTC30m
2026-07-09 SAMU24 - Jul 9, 12:05 UTCJul 9, 12:30 UTC25m
2026-07-09 SAMU24 - Jul 9, 08:45 UTCJul 9, 09:25 UTC40m
2026-07-07 SAMU24 - Jul 7, 21:00 UTCJul 7, 21:10 UTC10m
2026-07-06 SAMU24 - Jul 6, 14:30 UTCJul 6, 14:50 UTC20m
2026-07-06 SAMU24 - Jul 6, 13:40 UTCJul 6, 14:00 UTC20m
2026-07-06 SAMU24 - Jul 6, 11:55 UTCJul 6, 12:25 UTC30m
2026-07-05 SAMU24 - Jul 5, 00:20 UTCJul 5, 00:50 UTC30m
2026-07-04 SAMU24 - Jul 4, 23:20 UTCJul 4, 23:35 UTC15m
2026-07-03 SAMU24 - Jul 3, 21:05 UTCJul 3, 21:30 UTC25m
2026-07-03 SAMU24 - Jul 3, 20:10 UTCJul 3, 20:30 UTC20m
2026-07-03 SAMU24 - Jul 3, 17:35 UTCJul 3, 18:00 UTC25m
2026-07-03 SAMU24 - Jul 3, 16:45 UTCJul 3, 17:05 UTC20m
2026-07-01 SAMU24 - Jul 1, 00:10 UTCJul 1, 00:35 UTC25m
2026-06-30 SAMU24 - Jun 30, 23:20 UTCJun 30, 23:45 UTC25m
2026-06-30 SAMU24 - Jun 30, 15:45 UTCJun 30, 16:05 UTC20m
2026-06-30 SAMU24 - Jun 30, 14:30 UTCJun 30, 15:00 UTC30m
2026-06-30 SAMU24 - Jun 30, 12:55 UTCJun 30, 13:15 UTC20m
2026-06-30 SAMU24 - Jun 30, 12:00 UTCJun 30, 12:20 UTC20m
2026-06-29 SAMU24 - Jun 29, 20:59 UTCJun 29, 21:30 UTC30m
2026-06-29 SAMU24 - Jun 29, 20:19 UTCJun 29, 20:40 UTC20m
2026-06-27 SAMU24 - Jun 27, 02:35 UTCJun 27, 02:45 UTC10m
2026-06-26 SAMU24 - Jun 26, 22:25 UTCJun 26, 22:55 UTC30m
2026-06-26 SAMU24 - Jun 26, 21:24 UTCJun 26, 21:55 UTC30m
2026-06-26 SAMU24 - Jun 26, 15:39 UTCJun 26, 16:00 UTC20m
2026-06-26 SAMU24 - Jun 26, 14:44 UTCJun 26, 15:05 UTC20m
2026-06-26 SAMU24 - Jun 26, 08:50 UTCJun 26, 09:10 UTC20m
2026-06-26 SAMU24 - Jun 26, 07:50 UTCJun 26, 08:15 UTC25m
2026-06-24 SAMU24 - Jun 24, 13:10 UTCJun 24, 13:40 UTC30m
2026-06-24 SAMU24 - Jun 24, 11:50 UTCJun 24, 12:14 UTC25m
2026-06-23 SAMU24 - Jun 23, 21:45 UTCJun 23, 22:15 UTC30m
2026-06-23 SAMU24 - Jun 23, 20:49 UTCJun 23, 21:05 UTC15m
2026-06-23 SAMU24 - Jun 23, 14:29 UTCJun 23, 14:59 UTC30m
2026-06-23 SAMU24 - Jun 23, 12:09 UTCJun 23, 12:29 UTC20m
2026-06-23 SAMU24 - Jun 23, 00:09 UTCJun 23, 00:45 UTC35m
2026-06-21 SAMU24 - Jun 21, 13:15 UTCJun 21, 13:50 UTC35m
2026-06-21 SAMU24 - Jun 21, 12:35 UTCJun 21, 12:55 UTC20m
2026-06-20 SAMU24 - Jun 20, 20:40 UTCJun 20, 21:10 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 F-HLNA page for operator, model, and routing details .

Mode-S 39ADA0 frequently asked

What is Mode-S code 39ADA0?
39ADA0 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HLNA.
Where is Mode-S 39ADA0 registered?
Mode-S code 39ADA0 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39ADA0 broadcasting right now?
No active broadcast right now. Last signal was 18d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39ADA0, octal 16326640, decimal 3,780,000.
What flights does 39ADA0 operate?
Mode-S 39ADA0 has broadcast 1 distinct callsign, including SAMU24.