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
Broadcasting now · callsign MZY41A · 3,725 ft
Flights observed
104
Distinct callsigns
20
Country
FR
Last broadcast
16h ago

Current position

398C07 is currently broadcasting. Map zoomed to live position.

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 - 14 2026-05-24
MZY041B - 12 2026-05-23
MZY30B - 9 2026-05-29
MZY041D - 5 2026-05-23
MZY029B - 5 2026-05-25
MZY041E - 4 2026-05-23
MZY040B - 4 2026-05-20
MZY015B - 4 2026-04-17
MZY30A - 3 2026-04-29
MZY041C - 3 2026-05-22
MZY040A - 3 2026-05-25
MZY033A - 3 2026-05-21
MZY030B - 3 2026-05-25
MZY029A - 3 2026-05-27
MZY015A - 3 2026-04-17
FHDAH - 3 2026-04-23
MZY41B - 2 2026-05-17
MZY30D - 2 2026-05-28
MZY15A - 2 2026-04-13
MZY036B - 2 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 MZY30B - May 29, 16:05 UTCMay 29, 16:45 UTC40m
2026-05-29 MZY30B - May 29, 14:10 UTCMay 29, 15:25 UTC1h 15m
2026-05-29 MZY016C - May 29, 11:40 UTCMay 29, 12:40 UTC1h 0m
2026-05-29 MZY016B - May 29, 07:30 UTCMay 29, 08:55 UTC1h 25m
2026-05-28 MZY30D - May 28, 16:40 UTCMay 28, 17:15 UTC35m
2026-05-28 MZY30B - May 28, 14:30 UTCMay 28, 15:35 UTC1h 5m
2026-05-28 MZY30B FNI → FNI May 28, 08:55 UTCMay 28, 10:15 UTC1h 20m
2026-05-27 MZY30B FNI → FNI May 27, 10:20 UTCMay 27, 11:40 UTC1h 20m
2026-05-27 MZY029A - May 27, 07:05 UTCMay 27, 08:55 UTC1h 50m
2026-05-26 MZY30B - May 26, 17:35 UTCMay 26, 18:14 UTC40m
2026-05-26 MZY30B - May 26, 15:20 UTCMay 26, 16:45 UTC1h 25m
2026-05-26 MZY016A - May 26, 11:44 UTCMay 26, 13:40 UTC1h 55m
2026-05-26 MZY029A FNI → FNI May 26, 06:59 UTCMay 26, 08:15 UTC1h 15m
2026-05-25 MZY030B - May 25, 15:55 UTCMay 25, 16:40 UTC45m
2026-05-25 MZY030B FNI → FNI May 25, 13:55 UTCMay 25, 15:25 UTC1h 30m
2026-05-25 MZY040A FNI → FNI May 25, 11:00 UTCMay 25, 12:50 UTC1h 50m
2026-05-25 MZY029D - May 25, 08:35 UTCMay 25, 10:20 UTC1h 45m
2026-05-25 MZY029B - May 25, 06:50 UTCMay 25, 08:00 UTC1h 10m
2026-05-24 MZY041A FNI → FNI May 24, 13:20 UTCMay 24, 14:30 UTC1h 10m
2026-05-24 MZY041A FNI → FNI May 24, 10:45 UTCMay 24, 11:55 UTC1h 10m
2026-05-24 MZY041A FNI → FNI May 24, 09:05 UTCMay 24, 09:40 UTC35m
2026-05-23 MZY041E FNI → FNI May 23, 15:45 UTCMay 23, 16:30 UTC45m
2026-05-23 MZY041D - May 23, 12:30 UTCMay 23, 14:00 UTC1h 30m
2026-05-23 MZY041B - May 23, 08:35 UTCMay 23, 10:25 UTC1h 50m
2026-05-22 MZY041A FNI → FNI May 22, 13:20 UTCMay 22, 14:55 UTC1h 35m
2026-05-22 MZY041C FNI → FNI May 22, 10:15 UTCMay 22, 12:05 UTC1h 50m
2026-05-22 MZY041A - May 22, 07:35 UTCMay 22, 09:15 UTC1h 40m
2026-05-21 MZY041A - May 21, 13:01 UTCMay 21, 14:35 UTC1h 35m
2026-05-21 MZY033A FNI → FNI May 21, 11:05 UTCMay 21, 12:00 UTC55m
2026-05-21 MZY029B - May 21, 08:00 UTCMay 21, 09:15 UTC1h 15m
2026-05-20 MZY029B - May 20, 15:40 UTCMay 20, 17:00 UTC1h 20m
2026-05-20 MZY029B FNI → FNI May 20, 12:40 UTCMay 20, 14:00 UTC1h 20m
2026-05-20 MZY040B - May 20, 10:15 UTCMay 20, 11:05 UTC50m
2026-05-20 MZY040A - May 20, 09:15 UTCMay 20, 09:40 UTC25m
2026-05-20 MZY040B FNI → FNI May 20, 06:50 UTCMay 20, 08:35 UTC1h 45m
2026-05-19 MZY041A - May 19, 18:30 UTCMay 19, 19:55 UTC1h 25m
2026-05-19 MZY041A - May 19, 17:25 UTCMay 19, 17:40 UTC15m
2026-05-19 MZY041B FNI → FNI May 19, 15:20 UTCMay 19, 17:00 UTC1h 40m
2026-05-19 MZY033A FNI → FNI May 19, 13:50 UTCMay 19, 14:35 UTC45m
2026-05-19 MZY033A - May 19, 12:25 UTCMay 19, 13:05 UTC40m
2026-05-19 MZY40B FNI → FNI May 19, 09:20 UTCMay 19, 11:10 UTC1h 50m
2026-05-19 MZY040B FNI → FNI May 19, 06:15 UTCMay 19, 08:05 UTC1h 50m
2026-05-18 MZY041B FNI → FNI May 18, 15:45 UTCMay 18, 16:45 UTC1h 0m
2026-05-18 MZY041B - May 18, 13:00 UTCMay 18, 14:30 UTC1h 30m
2026-05-18 MZY040D - May 18, 08:25 UTCMay 18, 09:45 UTC1h 20m
2026-05-18 MZY040A - May 18, 06:25 UTCMay 18, 07:50 UTC1h 25m
2026-05-17 MZY036A FNI → FNI May 17, 17:35 UTCMay 17, 18:55 UTC1h 20m
2026-05-17 MZY041E FNI → FNI May 17, 15:55 UTCMay 17, 17:01 UTC1h 5m
2026-05-17 MZY041E - May 17, 13:10 UTCMay 17, 14:25 UTC1h 15m
2026-05-17 MZY41B FNI → FNI May 17, 09:05 UTCMay 17, 11:30 UTC2h 25m

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?
Yes. Mode-S 398C07 is currently airborne.
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, MZY041D, MZY029B.