Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

394F09

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GTYJ · SOCATA TB-20 Trinidad

Hex
394F09
Octal
16247411
Decimal
3,755,785
Country
FR
Tail
F-GTYJ
Type
TB20
No current signal · last broadcast 12h ago
Flights observed
97
Distinct callsigns
20
Country
FR
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 394F09.

Country allocation

The ICAO 24-bit address 394F09 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
FGTYJ - 50 2026-07-17
NAK790 - 7 2026-07-16
NAK729 - 6 2026-07-14
NAK790Y - 5 2026-07-16
NAK777N - 4 2026-06-12
NAK706B - 3 2026-04-17
NAK706A - 3 2026-04-17
NAK777J - 2 2026-06-10
NAK777G - 2 2026-06-12
NAK701 - 2 2026-06-25
NAK794D - 1 2026-05-26
NAK794B - 1 2026-05-26
NAK790B - 1 2026-07-17
NAK777C - 1 2026-06-11
NAK777A - 1 2026-06-08
NAK730D - 1 2026-06-16
NAK730C - 1 2026-06-16
NAK730A - 1 2026-06-16
NAK729S - 1 2026-07-02
NAK729A - 1 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 NAK790B - Jul 17, 15:29 UTCJul 17, 16:40 UTC1h 10m
2026-07-17 FGTYJ - Jul 17, 08:59 UTCJul 17, 09:30 UTC30m
2026-07-17 FGTYJ - Jul 17, 07:35 UTCJul 17, 08:00 UTC25m
2026-07-16 NAK790Y - Jul 16, 10:00 UTCJul 16, 11:05 UTC1h 5m
2026-07-16 NAK790Y - Jul 16, 08:05 UTCJul 16, 09:15 UTC1h 10m
2026-07-16 NAK790 - Jul 16, 07:10 UTCJul 16, 07:20 UTC10m
2026-07-16 NAK790 - Jul 16, 06:30 UTCJul 16, 06:40 UTC10m
2026-07-15 FGTYJ - Jul 15, 15:15 UTCJul 15, 16:05 UTC50m
2026-07-15 FGTYJ - Jul 15, 13:35 UTCJul 15, 13:50 UTC15m
2026-07-15 FGTYJ - Jul 15, 07:05 UTCJul 15, 09:30 UTC2h 25m
2026-07-14 NAK729 - Jul 14, 14:00 UTCJul 14, 16:20 UTC2h 20m
2026-07-10 NAK729 - Jul 10, 14:00 UTCJul 10, 16:15 UTC2h 15m
2026-07-10 FGTYJ - Jul 10, 07:40 UTCJul 10, 07:55 UTC15m
2026-07-10 FGTYJ - Jul 10, 06:45 UTCJul 10, 07:00 UTC15m
2026-07-09 FGTYJ - Jul 9, 15:25 UTCJul 9, 15:40 UTC15m
2026-07-09 FGTYJ - Jul 9, 10:55 UTCJul 9, 11:50 UTC55m
2026-07-09 FGTYJ - Jul 9, 08:30 UTCJul 9, 09:00 UTC30m
2026-07-09 FGTYJ - Jul 9, 07:20 UTCJul 9, 07:50 UTC30m
2026-07-03 FGTYJ - Jul 3, 09:00 UTCJul 3, 10:10 UTC1h 10m
2026-07-03 FGTYJ - Jul 3, 08:10 UTCJul 3, 08:25 UTC15m
2026-07-03 FGTYJ - Jul 3, 06:25 UTCJul 3, 07:40 UTC1h 15m
2026-07-02 FGTYJ - Jul 2, 14:10 UTCJul 2, 15:55 UTC1h 45m
2026-07-02 NAK729 - Jul 2, 11:45 UTCJul 2, 12:25 UTC40m
2026-07-02 NAK729S - Jul 2, 09:00 UTCJul 2, 09:30 UTC30m
2026-07-02 NAK729 - Jul 2, 07:35 UTCJul 2, 07:50 UTC15m
2026-07-02 NAK729 - Jul 2, 06:15 UTCJul 2, 06:35 UTC20m
2026-07-01 FGTYJ - Jul 1, 20:25 UTCJul 1, 21:20 UTC55m
2026-07-01 FGTYJ - Jul 1, 09:55 UTCJul 1, 10:50 UTC55m
2026-06-30 FGTYJ - Jun 30, 23:45 UTCJul 1, 00:25 UTC40m
2026-06-30 FGTYJ LYN → LPY Jun 30, 22:05 UTCJun 30, 22:35 UTC30m
2026-06-30 FGTYJ - Jun 30, 21:00 UTCJun 30, 21:30 UTC30m
2026-06-30 FGTYJ - Jun 30, 18:05 UTCJun 30, 18:15 UTC10m
2026-06-30 FGTYJ - Jun 30, 16:25 UTCJun 30, 17:25 UTC1h 0m
2026-06-30 NAK790Y - Jun 30, 07:45 UTCJun 30, 08:35 UTC50m
2026-06-30 NAK790 - Jun 30, 05:35 UTCJun 30, 06:05 UTC30m
2026-06-29 FGTYJ - Jun 29, 18:30 UTCJun 29, 18:39 UTC10m
2026-06-29 FGTYJ - Jun 29, 16:55 UTCJun 29, 17:59 UTC1h 5m
2026-06-29 NAK729 - Jun 29, 14:19 UTCJun 29, 14:34 UTC15m
2026-06-29 NAK729A - Jun 29, 12:34 UTCJun 29, 12:55 UTC20m
2026-06-29 NAK790Y - Jun 29, 08:04 UTCJun 29, 08:35 UTC30m
2026-06-29 NAK790 - Jun 29, 05:40 UTCJun 29, 06:24 UTC45m
2026-06-26 NAK727N - Jun 26, 07:50 UTCJun 26, 08:54 UTC1h 5m
2026-06-26 FGTYJ - Jun 26, 05:44 UTCJun 26, 06:54 UTC1h 10m
2026-06-25 FGTYJ - Jun 25, 09:29 UTCJun 25, 11:04 UTC1h 35m
2026-06-25 NAK701 - Jun 25, 07:54 UTCJun 25, 08:34 UTC40m
2026-06-25 FGTYJ - Jun 25, 06:44 UTCJun 25, 07:19 UTC35m
2026-06-25 FGTYJ - Jun 25, 01:04 UTCJun 25, 01:50 UTC45m
2026-06-24 FGTYJ - Jun 24, 20:40 UTCJun 24, 21:04 UTC25m
2026-06-24 FGTYJ VAF → SYT Jun 24, 02:15 UTCJun 24, 03:15 UTC1h 0m
2026-06-24 FGTYJ - Jun 24, 00:55 UTCJun 24, 01:55 UTC1h 0m

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

Mode-S 394F09 frequently asked

What is Mode-S code 394F09?
394F09 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GTYJ.
Where is Mode-S 394F09 registered?
Mode-S code 394F09 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 394F09 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 394F09, octal 16247411, decimal 3,755,785.
What flights does 394F09 operate?
Mode-S 394F09 has broadcast 20 distinct callsigns, including FGTYJ, NAK790, NAK729, NAK790Y, NAK777N.