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sensors Mode-S transponder

390018

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GAAY · CESSNA 150

Hex
390018
Octal
16200030
Decimal
3,735,576
Country
FR
Tail
F-GAAY
Type
C150
No current signal · last broadcast 17h ago
Flights observed
87
Distinct callsigns
1
Country
FR
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 390018.

Country allocation

The ICAO 24-bit address 390018 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
FGAAY - 86 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 FGAAY - Jul 17, 09:10 UTCJul 17, 09:35 UTC25m
2026-07-17 FGAAY - Jul 17, 07:40 UTCJul 17, 07:55 UTC15m
2026-07-16 FGAAY - Jul 16, 13:10 UTCJul 16, 13:20 UTC10m
2026-07-12 - - Jul 12, 07:15 UTCJul 12, 07:40 UTC25m
2026-07-05 FGAAY - Jul 5, 11:40 UTCJul 5, 12:20 UTC40m
2026-07-05 FGAAY - Jul 5, 09:15 UTCJul 5, 09:55 UTC40m
2026-07-04 FGAAY - Jul 4, 16:00 UTCJul 4, 16:40 UTC40m
2026-07-04 FGAAY - Jul 4, 13:25 UTCJul 4, 14:15 UTC50m
2026-07-03 FGAAY - Jul 3, 15:45 UTCJul 3, 16:15 UTC30m
2026-07-03 FGAAY - Jul 3, 13:40 UTCJul 3, 14:10 UTC30m
2026-07-03 FGAAY - Jul 3, 07:15 UTCJul 3, 08:05 UTC50m
2026-07-02 FGAAY - Jul 2, 15:05 UTCJul 2, 16:00 UTC55m
2026-07-02 FGAAY - Jul 2, 11:50 UTCJul 2, 12:45 UTC55m
2026-07-02 FGAAY - Jul 2, 08:40 UTCJul 2, 08:50 UTC10m
2026-07-01 FGAAY - Jul 1, 17:00 UTCJul 1, 17:50 UTC50m
2026-07-01 FGAAY - Jul 1, 11:40 UTCJul 1, 12:25 UTC45m
2026-06-27 FGAAY - Jun 27, 05:49 UTCJun 27, 08:10 UTC2h 20m
2026-06-24 FGAAY - Jun 24, 06:20 UTCJun 24, 07:15 UTC55m
2026-06-23 FGAAY - Jun 23, 07:15 UTCJun 23, 07:45 UTC30m
2026-06-23 FGAAY - Jun 23, 06:04 UTCJun 23, 06:24 UTC20m
2026-06-22 FGAAY - Jun 22, 08:10 UTCJun 22, 08:54 UTC45m
2026-06-21 FGAAY - Jun 21, 12:19 UTCJun 21, 12:55 UTC35m
2026-06-21 FGAAY - Jun 21, 08:20 UTCJun 21, 09:24 UTC1h 5m
2026-06-20 FGAAY - Jun 20, 17:10 UTCJun 20, 17:49 UTC40m
2026-06-20 FGAAY - Jun 20, 14:35 UTCJun 20, 15:44 UTC1h 10m
2026-06-20 FGAAY - Jun 20, 09:34 UTCJun 20, 10:29 UTC55m
2026-06-20 FGAAY - Jun 20, 07:49 UTCJun 20, 08:44 UTC55m
2026-06-19 FGAAY - Jun 19, 18:05 UTCJun 19, 18:25 UTC20m
2026-06-19 FGAAY - Jun 19, 08:34 UTCJun 19, 09:09 UTC35m
2026-06-18 FGAAY - Jun 18, 14:05 UTCJun 18, 14:25 UTC20m
2026-06-18 FGAAY - Jun 18, 12:30 UTCJun 18, 13:05 UTC35m
2026-06-18 FGAAY - Jun 18, 09:30 UTCJun 18, 10:00 UTC30m
2026-06-18 FGAAY - Jun 18, 07:45 UTCJun 18, 08:20 UTC35m
2026-06-17 FGAAY - Jun 17, 08:55 UTCJun 17, 09:40 UTC45m
2026-06-16 FGAAY - Jun 16, 10:15 UTCJun 16, 11:20 UTC1h 5m
2026-06-15 FGAAY - Jun 15, 14:24 UTCJun 15, 14:34 UTC10m
2026-06-15 FGAAY - Jun 15, 09:15 UTCJun 15, 09:25 UTC10m
2026-06-13 FGAAY - Jun 13, 11:45 UTCJun 13, 13:10 UTC1h 25m
2026-06-13 FGAAY - Jun 13, 09:10 UTCJun 13, 10:30 UTC1h 20m
2026-06-12 FGAAY - Jun 12, 13:05 UTCJun 12, 13:35 UTC30m
2026-06-11 FGAAY - Jun 11, 14:10 UTCJun 11, 14:35 UTC25m
2026-06-11 FGAAY - Jun 11, 12:30 UTCJun 11, 13:00 UTC30m
2026-06-10 FGAAY - Jun 10, 15:10 UTCJun 10, 15:50 UTC40m
2026-06-10 FGAAY - Jun 10, 14:10 UTCJun 10, 14:25 UTC15m
2026-06-09 FGAAY - Jun 9, 12:30 UTCJun 9, 13:15 UTC45m
2026-06-08 FGAAY - Jun 8, 13:00 UTCJun 8, 14:20 UTC1h 20m
2026-06-07 FGAAY - Jun 7, 15:45 UTCJun 7, 17:20 UTC1h 35m
2026-06-07 FGAAY - Jun 7, 12:30 UTCJun 7, 13:10 UTC40m
2026-06-07 FGAAY - Jun 7, 08:50 UTCJun 7, 09:45 UTC55m
2026-06-06 FGAAY - Jun 6, 12:40 UTCJun 6, 13:00 UTC20m

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

Mode-S 390018 frequently asked

What is Mode-S code 390018?
390018 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GAAY.
Where is Mode-S 390018 registered?
Mode-S code 390018 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 390018 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 390018, octal 16200030, decimal 3,735,576.
What flights does 390018 operate?
Mode-S 390018 has broadcast 1 distinct callsign, including FGAAY.