Apparatus

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sensors Mode-S transponder

394A0A

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GSQK · BOEING 777-300ER

Hex
394A0A
Octal
16245012
Decimal
3,754,506
Country
FR
Tail
F-GSQK
Type
B77W
No current signal · last broadcast 2h ago
Flights observed
153
Distinct callsigns
20
Country
FR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 394A0A.

Country allocation

The ICAO 24-bit address 394A0A 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
AFR274 - 17 2026-07-09
AFR279 - 13 2026-07-10
AFR090 Air France 11 2026-06-11
AFR24X - 10 2026-07-11
AFR23G - 10 2026-06-23
AFR22J Air France 10 2026-06-23
AFR025 - 9 2026-07-12
AFR5U Air France 8 2026-06-04
AFR091 - 8 2026-06-12
AFR006 - 8 2026-06-04
AFR007 - 6 2026-07-13
AFR8F - 5 2026-07-12
AFR3T - 5 2026-07-04
AFR004 - 5 2026-07-04
AFR021 - 4 2026-07-08
AFR020 - 4 2026-07-08
AFR003 - 3 2026-04-13
AFR293 - 2 2026-06-21
AFR257 Air France 2 2026-06-18
AFR256 Air France 2 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AFR702 - Jul 13, 13:00 UTCJul 14, 04:50 UTC15h 50m
2026-07-13 AFR007 JFK → CDG Jul 13, 02:01 UTCJul 13, 08:40 UTC6h 40m
2026-07-12 AFR8F - Jul 12, 15:05 UTCJul 12, 22:10 UTC7h 5m
2026-07-12 AFR025 - Jul 12, 01:40 UTCJul 12, 11:50 UTC10h 10m
2026-07-11 AFR24X - Jul 11, 12:15 UTCJul 11, 23:05 UTC10h 50m
2026-07-10 AFR279 - Jul 10, 13:15 UTCJul 11, 03:50 UTC14h 35m
2026-07-09 AFR274 - Jul 9, 21:20 UTCJul 10, 09:55 UTC12h 35m
2026-07-08 AFR021 - Jul 8, 21:10 UTCJul 9, 07:20 UTC10h 10m
2026-07-08 AFR020 - Jul 8, 07:45 UTCJul 8, 18:25 UTC10h 40m
2026-07-07 AFR279 HND → CDG Jul 7, 13:40 UTCJul 8, 03:20 UTC13h 40m
2026-07-06 AFR274 CDG → HND Jul 6, 21:25 UTCJul 7, 10:00 UTC12h 35m
2026-07-06 AFR007 - Jul 6, 04:25 UTCJul 6, 10:35 UTC6h 10m
2026-07-05 AFR8F - Jul 5, 15:40 UTCJul 5, 23:05 UTC7h 25m
2026-07-04 AFR3T JFK → CDG Jul 4, 22:15 UTCJul 5, 04:45 UTC6h 30m
2026-07-04 AFR004 - Jul 4, 09:00 UTCJul 4, 16:30 UTC7h 30m
2026-07-03 AFR3T JFK → CDG Jul 3, 22:10 UTCJul 4, 04:30 UTC6h 20m
2026-07-03 AFR004 - Jul 3, 09:10 UTCJul 3, 16:35 UTC7h 25m
2026-07-02 AFR3T JFK → CDG Jul 2, 22:20 UTCJul 3, 04:40 UTC6h 20m
2026-07-02 AFR004 - Jul 2, 08:50 UTCJul 2, 16:20 UTC7h 30m
2026-07-01 AFR279 HND → CDG Jul 1, 13:30 UTCJul 2, 03:35 UTC14h 5m
2026-06-30 AFR274 CDG → HND Jun 30, 22:00 UTCJul 1, 10:45 UTC12h 45m
2026-06-30 AFR007 JFK → CDG Jun 30, 02:25 UTCJun 30, 08:45 UTC6h 20m
2026-06-29 AFR8F - Jun 29, 15:19 UTCJun 29, 22:39 UTC7h 20m
2026-06-29 AFR009 - Jun 29, 03:49 UTCJun 29, 10:15 UTC6h 25m
2026-06-28 AFR010 - Jun 28, 16:49 UTCJun 29, 00:14 UTC7h 25m
2026-06-28 AFR025 - Jun 28, 01:34 UTCJun 28, 11:39 UTC10h 5m
2026-06-27 AFR24X CDG → LAX Jun 27, 12:25 UTCJun 27, 23:14 UTC10h 50m
2026-06-26 AFR453 GRU → CDG Jun 26, 21:45 UTCJun 27, 08:20 UTC10h 35m
2026-06-26 AFR454A - Jun 26, 08:00 UTCJun 26, 18:39 UTC10h 40m
2026-06-23 AFR23G - Jun 23, 22:29 UTCJun 24, 08:35 UTC10h 5m
2026-06-23 AFR22J CDG → LAX Jun 23, 08:59 UTCJun 23, 19:50 UTC10h 50m
2026-06-22 AFR3T - Jun 22, 21:49 UTCJun 23, 04:14 UTC6h 25m
2026-06-22 AFR004 - Jun 22, 10:49 UTCJun 22, 18:15 UTC7h 25m
2026-06-21 AFR293 - Jun 21, 15:34 UTCJun 22, 06:19 UTC14h 45m
2026-06-20 AFR274 CDG → HND Jun 20, 21:30 UTCJun 21, 09:49 UTC12h 20m
2026-06-19 AFR23G - Jun 19, 22:34 UTCJun 20, 08:39 UTC10h 5m
2026-06-19 AFR22J CDG → LAX Jun 19, 08:50 UTCJun 19, 19:39 UTC10h 50m
2026-06-18 AFR257 SIN → CDG Jun 18, 14:50 UTCJun 19, 03:39 UTC12h 49m
2026-06-17 AFR256 CDG → SIN Jun 17, 21:45 UTCJun 18, 09:55 UTC12h 10m
2026-06-17 AFR025 - Jun 17, 01:40 UTCJun 17, 12:05 UTC10h 25m
2026-06-16 AFR24X CDG → LAX Jun 16, 11:55 UTCJun 16, 22:25 UTC10h 31m
2026-06-15 AFR279 HND → CDG Jun 15, 13:25 UTCJun 16, 04:05 UTC14h 40m
2026-06-14 AFR274 CDG → HND Jun 14, 21:25 UTCJun 15, 09:49 UTC12h 24m
2026-06-13 AFR279 HND → CDG Jun 13, 13:10 UTCJun 14, 02:55 UTC13h 45m
2026-06-12 AFR274 CDG → HND Jun 12, 21:20 UTCJun 13, 10:20 UTC12h 59m
2026-06-12 AFR091 - Jun 12, 00:30 UTCJun 12, 08:55 UTC8h 25m
2026-06-11 AFR090 CDG → MIA Jun 11, 12:15 UTCJun 11, 21:20 UTC9h 5m
2026-06-11 AFR091 MIA → CDG Jun 11, 00:35 UTCJun 11, 09:00 UTC8h 25m
2026-06-10 AFR090 CDG → MIA Jun 10, 12:20 UTCJun 10, 21:25 UTC9h 5m
2026-06-10 AFR007 JFK → CDG Jun 10, 02:05 UTCJun 10, 08:35 UTC6h 30m

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

Mode-S 394A0A frequently asked

What is Mode-S code 394A0A?
394A0A is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GSQK.
Where is Mode-S 394A0A registered?
Mode-S code 394A0A is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 394A0A broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 394A0A, octal 16245012, decimal 3,754,506.
What flights does 394A0A operate?
Mode-S 394A0A has broadcast 20 distinct callsigns, including AFR274, AFR279, AFR090, AFR24X, AFR23G.