Apparatus

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sensors Mode-S transponder

393643

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GNSD · BEECH 58 Baron

Hex
393643
Octal
16233103
Decimal
3,749,443
Country
FR
Tail
F-GNSD
Type
BE58
No current signal · last broadcast 2d ago
Flights observed
102
Distinct callsigns
20
Country
FR
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 393643.

Country allocation

The ICAO 24-bit address 393643 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
FGNSD - 20 2026-07-06
NAK762 - 4 2026-06-26
NAK721 - 4 2026-07-15
NAK609A - 4 2026-05-29
NAK601 - 4 2026-06-09
NAK790 - 3 2026-04-20
NAK784 - 3 2026-04-28
NAK741 - 3 2026-04-27
NAK721R - 3 2026-04-27
NAK721L - 3 2026-07-15
NAK784C - 2 2026-04-28
NAK784A - 2 2026-05-19
NAK747 - 2 2026-05-21
NAK741N - 2 2026-05-22
NAK741C - 2 2026-04-27
NAK741B - 2 2026-04-29
NAK736 - 2 2026-06-30
NAK734C - 2 2026-07-02
NAK721H - 2 2026-04-23
NAK625 - 2 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 NAK762A - Jul 15, 13:50 UTCJul 15, 16:15 UTC2h 25m
2026-07-15 NAK721L - Jul 15, 11:00 UTCJul 15, 11:10 UTC10m
2026-07-15 NAK721 - Jul 15, 09:10 UTCJul 15, 09:55 UTC45m
2026-07-07 NAK721B - Jul 7, 08:15 UTCJul 7, 08:40 UTC25m
2026-07-07 NAK721L - Jul 7, 07:00 UTCJul 7, 07:35 UTC35m
2026-07-07 NAK721T - Jul 7, 05:30 UTCJul 7, 06:15 UTC45m
2026-07-06 NAK744B - Jul 6, 14:25 UTCJul 6, 15:10 UTC45m
2026-07-06 NAK744A - Jul 6, 13:05 UTCJul 6, 13:50 UTC45m
2026-07-06 FGNSD - Jul 6, 08:40 UTCJul 6, 09:15 UTC35m
2026-07-06 FGNSD - Jul 6, 06:55 UTCJul 6, 07:35 UTC40m
2026-07-03 NAK721L - Jul 3, 13:50 UTCJul 3, 14:10 UTC20m
2026-07-03 NAK721Y - Jul 3, 12:30 UTCJul 3, 13:10 UTC40m
2026-07-03 NAK706B - Jul 3, 09:15 UTCJul 3, 09:35 UTC20m
2026-07-03 NAK706 - Jul 3, 07:00 UTCJul 3, 07:15 UTC15m
2026-07-02 NAK734F - Jul 2, 09:15 UTCJul 2, 10:10 UTC55m
2026-07-02 NAK734C - Jul 2, 06:55 UTCJul 2, 08:20 UTC1h 25m
2026-07-01 NAK733N - Jul 1, 07:30 UTCJul 1, 08:30 UTC1h 0m
2026-07-01 NAK733A - Jul 1, 05:35 UTCJul 1, 06:45 UTC1h 10m
2026-06-30 FGNSD - Jun 30, 21:30 UTCJun 30, 22:00 UTC30m
2026-06-30 FGNSD - Jun 30, 20:25 UTCJun 30, 20:50 UTC25m
2026-06-30 NAK721 - Jun 30, 18:20 UTCJun 30, 18:55 UTC35m
2026-06-30 NAK736J - Jun 30, 12:15 UTCJun 30, 13:30 UTC1h 15m
2026-06-30 NAK736I - Jun 30, 09:00 UTCJun 30, 10:05 UTC1h 5m
2026-06-30 NAK736 - Jun 30, 07:05 UTCJun 30, 07:35 UTC30m
2026-06-29 FGNSD - Jun 29, 22:30 UTCJun 29, 23:14 UTC45m
2026-06-29 FGNSD - Jun 29, 21:30 UTCJun 29, 21:50 UTC20m
2026-06-29 FGNSD - Jun 29, 20:19 UTCJun 29, 21:24 UTC1h 5m
2026-06-29 NAK721 - Jun 29, 16:50 UTCJun 29, 17:24 UTC35m
2026-06-29 NAK721 - Jun 29, 15:24 UTCJun 29, 16:00 UTC35m
2026-06-26 NAK762 - Jun 26, 10:39 UTCJun 26, 11:45 UTC1h 5m
2026-06-23 NAK707 - Jun 23, 11:54 UTCJun 23, 13:05 UTC1h 10m
2026-06-23 NAK736H - Jun 23, 07:19 UTCJun 23, 08:20 UTC1h 0m
2026-06-23 NAK736E - Jun 23, 05:39 UTCJun 23, 06:44 UTC1h 5m
2026-06-22 FGNSD - Jun 22, 16:10 UTCJun 22, 17:29 UTC1h 20m
2026-06-22 FGNSD - Jun 22, 07:30 UTCJun 22, 08:04 UTC35m
2026-06-22 NAK736 - Jun 22, 05:44 UTCJun 22, 06:49 UTC1h 5m
2026-06-19 NAK733 - Jun 19, 06:39 UTCJun 19, 07:04 UTC25m
2026-06-17 NAK706A - Jun 17, 11:35 UTCJun 17, 12:35 UTC1h 0m
2026-06-09 NAK601 - Jun 9, 09:10 UTCJun 9, 10:05 UTC55m
2026-06-09 FGNSD - Jun 9, 07:40 UTCJun 9, 08:05 UTC25m
2026-06-08 NAK625 - Jun 8, 12:35 UTCJun 8, 13:45 UTC1h 10m
2026-06-08 NAK622 - Jun 8, 08:45 UTCJun 8, 10:05 UTC1h 20m
2026-06-05 NAK625 - Jun 5, 11:45 UTCJun 5, 12:30 UTC45m
2026-06-05 NAK625C - Jun 5, 07:45 UTCJun 5, 10:05 UTC2h 20m
2026-06-04 NAK622 - Jun 4, 12:15 UTCJun 4, 12:55 UTC40m
2026-06-04 NAK622B - Jun 4, 08:05 UTCJun 4, 10:20 UTC2h 15m
2026-06-03 NAK601 - Jun 3, 14:30 UTCJun 3, 15:15 UTC45m
2026-06-02 NAK601 - Jun 2, 06:45 UTCJun 2, 07:40 UTC55m
2026-05-29 NAK609C - May 29, 12:20 UTCMay 29, 13:05 UTC45m
2026-05-29 NAK609A - May 29, 09:10 UTCMay 29, 10:00 UTC50m

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

Mode-S 393643 frequently asked

What is Mode-S code 393643?
393643 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GNSD.
Where is Mode-S 393643 registered?
Mode-S code 393643 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 393643 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 393643, octal 16233103, decimal 3,749,443.
What flights does 393643 operate?
Mode-S 393643 has broadcast 20 distinct callsigns, including FGNSD, NAK762, NAK721, NAK609A, NAK601.