Apparatus

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sensors Mode-S transponder

398540

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HBKA · AIRBUS HELICOPTERS EC-120

Hex
398540
Octal
16302500
Decimal
3,769,664
Country
FR
Tail
F-HBKA
Type
EC20
No current signal · last broadcast 6d ago
Flights observed
73
Distinct callsigns
8
Country
FR
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 398540.

Country allocation

The ICAO 24-bit address 398540 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 8 distinct

Callsign Airline Flights Last seen
FHBKA - 43 2026-07-16
FMY86R1 - 20 2026-06-19
FMY8741 - 2 2026-04-23
FMY8730 - 2 2026-05-11
FMY8720 - 2 2026-06-01
FMY8797 - 1 2026-06-10
FMY8791 - 1 2026-06-10
FMY8732 - 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 FHBKA - Jul 16, 08:10 UTCJul 16, 09:05 UTC55m
2026-07-07 FHBKA - Jul 7, 10:05 UTCJul 7, 10:20 UTC15m
2026-07-07 FHBKA - Jul 7, 08:40 UTCJul 7, 09:30 UTC50m
2026-07-01 FHBKA - Jul 1, 06:55 UTCJul 1, 07:30 UTC35m
2026-06-30 FHBKA - Jun 30, 13:25 UTCJun 30, 14:10 UTC45m
2026-06-30 FHBKA - Jun 30, 11:55 UTCJun 30, 12:25 UTC30m
2026-06-30 FHBKA - Jun 30, 11:05 UTCJun 30, 11:20 UTC15m
2026-06-29 FHBKA - Jun 29, 12:34 UTCJun 29, 13:49 UTC1h 15m
2026-06-29 FHBKA - Jun 29, 09:50 UTCJun 29, 10:55 UTC1h 5m
2026-06-22 FHBKA - Jun 22, 11:54 UTCJun 22, 12:25 UTC30m
2026-06-22 FHBKA - Jun 22, 07:49 UTCJun 22, 09:10 UTC1h 20m
2026-06-19 FMY86R1 - Jun 19, 06:20 UTCJun 19, 07:25 UTC1h 5m
2026-06-18 FMY86R1 - Jun 18, 17:00 UTCJun 18, 17:15 UTC15m
2026-06-18 FMY86R1 - Jun 18, 15:15 UTCJun 18, 15:35 UTC20m
2026-06-18 FMY86R1 - Jun 18, 11:00 UTCJun 18, 12:35 UTC1h 35m
2026-06-18 FMY86R1 - Jun 18, 08:25 UTCJun 18, 08:35 UTC10m
2026-06-18 FMY86R1 - Jun 18, 06:15 UTCJun 18, 07:35 UTC1h 20m
2026-06-17 FMY86R1 - Jun 17, 19:00 UTCJun 17, 19:20 UTC20m
2026-06-17 FMY86R1 - Jun 17, 17:25 UTCJun 17, 18:10 UTC45m
2026-06-17 FMY86R1 - Jun 17, 15:46 UTCJun 17, 16:35 UTC50m
2026-06-17 FMY86R1 - Jun 17, 12:30 UTCJun 17, 14:10 UTC1h 40m
2026-06-17 FMY86R1 - Jun 17, 10:15 UTCJun 17, 11:05 UTC50m
2026-06-16 FMY86R1 - Jun 16, 19:40 UTCJun 16, 20:40 UTC1h 1m
2026-06-16 FMY86R1 - Jun 16, 18:50 UTCJun 16, 19:00 UTC10m
2026-06-16 FMY86R1 - Jun 16, 17:10 UTCJun 16, 18:05 UTC55m
2026-06-16 FMY86R1 - Jun 16, 15:20 UTCJun 16, 15:30 UTC10m
2026-06-16 FMY86R1 - Jun 16, 11:30 UTCJun 16, 11:49 UTC20m
2026-06-16 FMY86R1 - Jun 16, 08:10 UTCJun 16, 08:25 UTC15m
2026-06-15 FMY86R1 - Jun 15, 15:30 UTCJun 15, 15:45 UTC15m
2026-06-15 FMY86R1 - Jun 15, 10:55 UTCJun 15, 12:45 UTC1h 50m
2026-06-15 FMY86R1 - Jun 15, 08:10 UTCJun 15, 09:49 UTC1h 40m
2026-06-11 FHBKA - Jun 11, 13:50 UTCJun 11, 14:15 UTC25m
2026-06-11 FHBKA - Jun 11, 12:20 UTCJun 11, 13:05 UTC45m
2026-06-10 FHBKA - Jun 10, 21:30 UTCJun 10, 22:10 UTC40m
2026-06-10 FHBKA - Jun 10, 14:45 UTCJun 10, 15:35 UTC50m
2026-06-10 FMY8797 - Jun 10, 12:15 UTCJun 10, 13:30 UTC1h 15m
2026-06-10 FMY8791 - Jun 10, 10:10 UTCJun 10, 10:30 UTC20m
2026-06-08 FHBKA - Jun 8, 14:20 UTCJun 8, 14:50 UTC30m
2026-06-08 FHBKA - Jun 8, 13:30 UTCJun 8, 13:45 UTC15m
2026-06-08 FHBKA - Jun 8, 11:10 UTCJun 8, 12:30 UTC1h 20m
2026-06-08 FHBKA - Jun 8, 08:20 UTCJun 8, 09:40 UTC1h 20m
2026-06-05 FHBKA - Jun 5, 07:25 UTCJun 5, 07:35 UTC10m
2026-06-03 FHBKA - Jun 3, 14:00 UTCJun 3, 14:40 UTC40m
2026-06-03 FHBKA - Jun 3, 12:55 UTCJun 3, 13:05 UTC10m
2026-06-02 FHBKA - Jun 2, 22:40 UTCJun 2, 23:10 UTC30m
2026-06-01 FHBKA - Jun 1, 14:00 UTCJun 1, 14:20 UTC20m
2026-06-01 FHBKA - Jun 1, 12:50 UTCJun 1, 13:20 UTC30m
2026-06-01 FMY8720 - Jun 1, 08:15 UTCJun 1, 08:45 UTC30m
2026-05-30 FMY8720 - May 30, 08:40 UTCMay 30, 09:00 UTC20m
2026-05-27 FHBKA - May 27, 11:00 UTCMay 27, 12:15 UTC1h 15m

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

Mode-S 398540 frequently asked

What is Mode-S code 398540?
398540 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HBKA.
Where is Mode-S 398540 registered?
Mode-S code 398540 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 398540 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 398540, octal 16302500, decimal 3,769,664.
What flights does 398540 operate?
Mode-S 398540 has broadcast 8 distinct callsigns, including FHBKA, FMY86R1, FMY8741, FMY8730, FMY8720.