sensors Mode-S transponder

3AAC3A

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-MJAA · AIRBUS HELICOPTERS EC-145

Hex
3AAC3A
Octal
16526072
Decimal
3,845,178
Country
FR
Tail
F-MJAA
Type
EC45
Broadcasting now · callsign FGN9377 · 4,525 ft
Flights observed
136
Distinct callsigns
5
Country
FR
Last broadcast
Jul 24, 15:55 UTC

Current position

3AAC3A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3AAC3A 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 5 distinct

Callsign Airline Flights Last seen
FMJAA - 61 2026-05-29
FGN9377 - 59 2026-07-24
FGN9376 - 14 2026-07-09
FGN1405 - 1 2026-07-09
CHOUCA2 - 1 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 FGN9377 - Jul 24, 15:25 UTCJul 24, 15:55 UTC30m
2026-07-24 FGN9377 - Jul 24, 11:15 UTCJul 24, 11:25 UTC10m
2026-07-23 FGN9377 - Jul 23, 13:55 UTCJul 23, 14:25 UTC30m
2026-07-23 FGN9377 - Jul 23, 11:40 UTCJul 23, 12:30 UTC50m
2026-07-23 CHOUCA2 - Jul 23, 08:35 UTCJul 23, 09:30 UTC55m
2026-07-23 FGN9377 - Jul 23, 06:55 UTCJul 23, 07:20 UTC25m
2026-07-22 FGN9377 - Jul 22, 14:40 UTCJul 22, 15:00 UTC20m
2026-07-22 FGN9377 - Jul 22, 12:20 UTCJul 22, 13:20 UTC1h 0m
2026-07-21 FGN9377 - Jul 21, 14:50 UTCJul 21, 15:10 UTC20m
2026-07-21 FGN9377 - Jul 21, 12:30 UTCJul 21, 13:40 UTC1h 10m
2026-07-21 FGN9377 - Jul 21, 08:50 UTCJul 21, 09:50 UTC1h 0m
2026-07-21 FGN9377 - Jul 21, 06:45 UTCJul 21, 07:10 UTC25m
2026-07-20 FGN9377 - Jul 20, 16:55 UTCJul 20, 17:10 UTC15m
2026-07-20 FGN9377 - Jul 20, 08:25 UTCJul 20, 08:45 UTC20m
2026-07-20 FGN9377 - Jul 20, 07:40 UTCJul 20, 07:55 UTC15m
2026-07-17 FGN9377 - Jul 17, 09:25 UTCJul 17, 10:30 UTC1h 5m
2026-07-17 FGN9377 - Jul 17, 08:35 UTCJul 17, 08:54 UTC20m
2026-07-16 FGN9377 - Jul 16, 13:40 UTCJul 16, 13:54 UTC15m
2026-07-16 FGN9377 - Jul 16, 06:40 UTCJul 16, 07:05 UTC25m
2026-07-15 FGN9377 - Jul 15, 11:10 UTCJul 15, 11:25 UTC15m
2026-07-15 FGN9377 - Jul 15, 07:25 UTCJul 15, 08:15 UTC50m
2026-07-14 FGN9377 - Jul 14, 17:10 UTCJul 14, 17:35 UTC25m
2026-07-14 FGN9377 - Jul 14, 13:55 UTCJul 14, 15:20 UTC1h 25m
2026-07-14 FGN9377 - Jul 14, 11:50 UTCJul 14, 13:05 UTC1h 15m
2026-07-14 FGN9377 - Jul 14, 08:55 UTCJul 14, 09:40 UTC45m
2026-07-14 FGN9377 - Jul 14, 06:35 UTCJul 14, 07:05 UTC30m
2026-07-13 FGN9377 - Jul 13, 12:15 UTCJul 13, 13:05 UTC50m
2026-07-11 FGN9377 - Jul 11, 18:40 UTCJul 11, 18:55 UTC15m
2026-07-11 FGN9377 - Jul 11, 06:55 UTCJul 11, 07:10 UTC15m
2026-07-10 FGN9377 - Jul 10, 16:40 UTCJul 10, 16:50 UTC10m
2026-07-10 FGN9377 - Jul 10, 12:20 UTCJul 10, 12:35 UTC15m
2026-07-09 FGN9376 - Jul 9, 23:35 UTCJul 10, 00:15 UTC40m
2026-07-09 FGN9376 - Jul 9, 20:55 UTCJul 9, 22:45 UTC1h 50m
2026-07-09 FGN9376 - Jul 9, 15:20 UTCJul 9, 16:00 UTC40m
2026-07-09 FGN1405 - Jul 9, 13:30 UTCJul 9, 14:15 UTC45m
2026-07-08 FGN9376 - Jul 8, 13:15 UTCJul 8, 13:50 UTC35m
2026-07-08 FGN9377 - Jul 8, 12:20 UTCJul 8, 12:40 UTC20m
2026-07-08 FGN9377 - Jul 8, 08:30 UTCJul 8, 08:50 UTC20m
2026-07-07 FGN9377 - Jul 7, 07:05 UTCJul 7, 07:15 UTC10m
2026-07-07 FGN9377 - Jul 7, 05:25 UTCJul 7, 05:35 UTC10m
2026-07-06 FGN9377 - Jul 6, 16:25 UTCJul 6, 16:40 UTC15m
2026-07-06 FGN9377 - Jul 6, 14:55 UTCJul 6, 15:15 UTC20m
2026-07-06 FGN9377 - Jul 6, 13:10 UTCJul 6, 14:00 UTC50m
2026-07-04 FGN9377 - Jul 4, 16:25 UTCJul 4, 17:40 UTC1h 15m
2026-07-04 FGN9377 - Jul 4, 15:25 UTCJul 4, 15:45 UTC20m
2026-07-03 FGN9377 - Jul 3, 12:00 UTCJul 3, 12:10 UTC10m
2026-07-03 FGN9377 - Jul 3, 08:05 UTCJul 3, 08:30 UTC25m
2026-07-02 FGN9377 - Jul 2, 14:20 UTCJul 2, 15:00 UTC40m
2026-07-02 FGN9377 - Jul 2, 13:20 UTCJul 2, 13:50 UTC30m
2026-07-01 FGN9377 - Jul 1, 15:35 UTCJul 1, 15:50 UTC15m

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

Mode-S 3AAC3A frequently asked

What is Mode-S code 3AAC3A?
3AAC3A is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-MJAA.
Where is Mode-S 3AAC3A registered?
Mode-S code 3AAC3A is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3AAC3A broadcasting right now?
Yes. Mode-S 3AAC3A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3AAC3A, octal 16526072, decimal 3,845,178.
What flights does 3AAC3A operate?
Mode-S 3AAC3A has broadcast 5 distinct callsigns, including FMJAA, FGN9377, FGN9376, FGN1405, CHOUCA2.