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 Jul 26, 22:30 UTC
Flights observed
170
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 22:30 UTC

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
AFR23G Air France 13 2026-07-25
AFR22J Air France 13 2026-07-25
AFR090 - 12 2026-07-15
AFR24X - 11 2026-07-18
AFR025 Air France 10 2026-07-19
AFR5U Air France 9 2026-07-24
AFR091 - 9 2026-07-16
AFR006 - 9 2026-07-24
AFR007 - 6 2026-07-13
AFR8F - 5 2026-07-12
AFR3T - 5 2026-07-04
AFR004 - 5 2026-07-04
AFR256 Air France 4 2026-07-26
AFR021 - 4 2026-07-08
AFR020 - 4 2026-07-08
AFR257 - 3 2026-07-20
AFR010 - 3 2026-07-16
AFR009 - 3 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR256 CDG → SIN Jul 26, 21:55 UTCJul 26, 22:30 UTC35m
2026-07-25 AFR23G LAX → CDG Jul 25, 22:35 UTCJul 26, 08:20 UTC9h 46m
2026-07-25 AFR22J CDG → LAX Jul 25, 08:55 UTCJul 25, 19:50 UTC10h 55m
2026-07-24 AFR5U JFK → CDG Jul 24, 23:25 UTCJul 25, 05:40 UTC6h 15m
2026-07-24 AFR006 - Jul 24, 12:20 UTCJul 24, 19:25 UTC7h 5m
2026-07-21 AFR23G LAX → CDG Jul 21, 22:30 UTCJul 22, 01:40 UTC3h 10m
2026-07-21 AFR22J - Jul 21, 09:10 UTCJul 21, 20:00 UTC10h 50m
2026-07-20 AFR257 - Jul 20, 15:10 UTCJul 21, 03:55 UTC12h 45m
2026-07-19 AFR256 - Jul 19, 21:45 UTCJul 20, 10:05 UTC12h 20m
2026-07-19 AFR025 LAX → CDG Jul 19, 01:35 UTCJul 19, 11:40 UTC10h 5m
2026-07-18 AFR24X - Jul 18, 12:00 UTCJul 18, 22:45 UTC10h 45m
2026-07-17 AFR009 - Jul 17, 04:04 UTCJul 17, 10:44 UTC6h 40m
2026-07-16 AFR010 - Jul 16, 16:55 UTCJul 17, 00:14 UTC7h 20m
2026-07-16 AFR091 - Jul 16, 00:20 UTCJul 16, 08:30 UTC8h 10m
2026-07-15 AFR090 - Jul 15, 12:30 UTCJul 15, 21:15 UTC8h 45m
2026-07-14 AFR23G - Jul 14, 22:20 UTCJul 15, 08:40 UTC10h 19m
2026-07-14 AFR22J - Jul 14, 08:15 UTCJul 14, 18:55 UTC10h 40m
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

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 Jul 26, 22:30 UTC.
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, AFR23G, AFR22J, AFR090.