Apparatus

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sensors Mode-S transponder

398C07

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HDAH · DIAMOND DA-42 Guardian

Hex
398C07
Octal
16306007
Decimal
3,771,399
Country
FR
Tail
F-HDAH
Type
DA42
No current signal · last broadcast 11d ago
Flights observed
178
Distinct callsigns
20
Country
FR
Last broadcast
11d ago

Last known position

Most recent position reported by Mode-S 398C07.

Country allocation

The ICAO 24-bit address 398C07 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 20 distinct

Callsign Airline Flights Last seen
MZY041A - 18 2026-06-16
MZY041B - 17 2026-06-20
MZY30B - 16 2026-06-16
MZY029B - 11 2026-07-02
MZY30A - 8 2026-07-01
MZY41A - 6 2026-06-20
MZY040B - 6 2026-06-23
MZY029A - 6 2026-06-11
MZY41B - 5 2026-06-20
MZY041D - 5 2026-05-23
MZY036B - 5 2026-06-07
MZY016A - 5 2026-06-05
MZY015B - 5 2026-06-17
MZY041E - 4 2026-05-23
MZY033A - 4 2026-07-01
MZY030B - 4 2026-06-22
MZY016B - 4 2026-06-22
FHDAH - 4 2026-07-03
MZY43B - 3 2026-07-01
MZY41C - 3 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-03 FHDAH - Jul 3, 05:35 UTCJul 3, 07:45 UTC2h 10m
2026-07-02 MZY029B - Jul 2, 08:20 UTCJul 2, 09:35 UTC1h 15m
2026-07-01 MZY30A - Jul 1, 11:35 UTCJul 1, 12:25 UTC50m
2026-07-01 MZY033A - Jul 1, 09:40 UTCJul 1, 10:25 UTC45m
2026-07-01 MZY43B - Jul 1, 07:15 UTCJul 1, 08:40 UTC1h 25m
2026-06-30 MZY43B LDE → FNI Jun 30, 09:50 UTCJun 30, 11:20 UTC1h 30m
2026-06-30 MZY43A - Jun 30, 07:30 UTCJun 30, 08:55 UTC1h 25m
2026-06-29 MZY43B - Jun 29, 09:10 UTCJun 29, 10:34 UTC1h 25m
2026-06-29 MZY43A - Jun 29, 07:05 UTCJun 29, 08:09 UTC1h 5m
2026-06-25 MZY30A - Jun 25, 07:59 UTCJun 25, 08:45 UTC45m
2026-06-24 MZY029B - Jun 24, 07:24 UTCJun 24, 09:09 UTC1h 45m
2026-06-23 MZY040B - Jun 23, 09:34 UTCJun 23, 10:35 UTC1h 0m
2026-06-22 MZY016B - Jun 22, 09:00 UTCJun 22, 10:49 UTC1h 50m
2026-06-22 MZY030B - Jun 22, 06:39 UTCJun 22, 08:10 UTC1h 30m
2026-06-20 MZY41B - Jun 20, 14:29 UTCJun 20, 15:49 UTC1h 20m
2026-06-20 MZY41A - Jun 20, 12:09 UTCJun 20, 13:29 UTC1h 20m
2026-06-20 MZY041B - Jun 20, 08:14 UTCJun 20, 09:34 UTC1h 20m
2026-06-19 MZY41B - Jun 19, 16:04 UTCJun 19, 16:59 UTC55m
2026-06-19 MZY41A - Jun 19, 14:24 UTCJun 19, 15:14 UTC50m
2026-06-18 MZY029B - Jun 18, 12:20 UTCJun 18, 14:05 UTC1h 45m
2026-06-17 MZY015B - Jun 17, 16:30 UTCJun 17, 18:10 UTC1h 40m
2026-06-17 MZY041B - Jun 17, 14:55 UTCJun 17, 15:40 UTC45m
2026-06-16 MZY041B - Jun 16, 17:49 UTCJun 16, 19:35 UTC1h 45m
2026-06-16 MZY041A - Jun 16, 15:35 UTCJun 16, 17:05 UTC1h 30m
2026-06-16 MZY30B - Jun 16, 12:55 UTCJun 16, 14:25 UTC1h 30m
2026-06-16 MZY30B - Jun 16, 08:55 UTCJun 16, 10:09 UTC1h 15m
2026-06-15 MZY15B - Jun 15, 15:04 UTCJun 15, 16:40 UTC1h 35m
2026-06-15 MZY15B - Jun 15, 11:54 UTCJun 15, 13:45 UTC1h 50m
2026-06-15 MZY030A - Jun 15, 09:49 UTCJun 15, 10:15 UTC25m
2026-06-13 MZY041B - Jun 13, 14:25 UTCJun 13, 15:55 UTC1h 30m
2026-06-12 MZY043A - Jun 12, 17:50 UTCJun 12, 19:35 UTC1h 45m
2026-06-12 MZY30B - Jun 12, 14:50 UTCJun 12, 15:20 UTC30m
2026-06-12 MZY30B - Jun 12, 13:05 UTCJun 12, 13:35 UTC30m
2026-06-12 MZY30A - Jun 12, 11:55 UTCJun 12, 12:30 UTC35m
2026-06-11 MZY41C - Jun 11, 17:30 UTCJun 11, 19:00 UTC1h 30m
2026-06-11 MZY041A - Jun 11, 14:30 UTCJun 11, 16:05 UTC1h 35m
2026-06-11 MZY029B - Jun 11, 13:00 UTCJun 11, 13:45 UTC45m
2026-06-11 MZY029A - Jun 11, 11:50 UTCJun 11, 12:10 UTC20m
2026-06-11 MZY029B - Jun 11, 07:10 UTCJun 11, 08:15 UTC1h 5m
2026-06-10 MZY040B - Jun 10, 14:30 UTCJun 10, 16:10 UTC1h 40m
2026-06-10 MZY029B - Jun 10, 10:30 UTCJun 10, 12:50 UTC2h 20m
2026-06-10 MZY30A - Jun 10, 08:35 UTCJun 10, 09:35 UTC1h 0m
2026-06-09 MZY30B - Jun 9, 12:50 UTCJun 9, 13:55 UTC1h 5m
2026-06-09 MZY016B - Jun 9, 08:15 UTCJun 9, 09:35 UTC1h 20m
2026-06-08 MZY41D - Jun 8, 19:05 UTCJun 8, 20:45 UTC1h 40m
2026-06-08 MZY41A - Jun 8, 16:30 UTCJun 8, 18:20 UTC1h 50m
2026-06-08 MZY016B - Jun 8, 13:05 UTCJun 8, 14:50 UTC1h 45m
2026-06-08 MZY029A - Jun 8, 08:25 UTCJun 8, 10:00 UTC1h 35m
2026-06-07 MZY036B - Jun 7, 16:15 UTCJun 7, 17:55 UTC1h 40m
2026-06-07 MZY036A - Jun 7, 13:45 UTCJun 7, 14:50 UTC1h 5m

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-HDAH page for operator, model, and routing details .

Mode-S 398C07 frequently asked

What is Mode-S code 398C07?
398C07 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HDAH.
Where is Mode-S 398C07 registered?
Mode-S code 398C07 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 398C07 broadcasting right now?
No active broadcast right now. Last signal was 11d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 398C07, octal 16306007, decimal 3,771,399.
What flights does 398C07 operate?
Mode-S 398C07 has broadcast 20 distinct callsigns, including MZY041A, MZY041B, MZY30B, MZY029B, MZY30A.