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sensors Mode-S transponder

394A12

ICAO 24-bit transponder address · allocated to France

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

Hex
394A12
Octal
16245022
Decimal
3,754,514
Country
FR
Tail
F-GSQS
Type
B77W
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
152
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 394A12.

Country allocation

The ICAO 24-bit address 394A12 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
AFR809 Air France 12 2026-07-26
AFR816 Air France 11 2026-07-25
AFR643 - 9 2026-07-19
AFR673 - 8 2026-06-13
AFR473 - 8 2026-07-10
AFR771 - 7 2026-07-17
AFR763 Air France 7 2026-07-24
AFR647 - 7 2026-07-20
AFR672 Air France 6 2026-06-11
AFR504 - 6 2026-07-08
AFR501 Air France 5 2026-06-03
AFR500 Air France 5 2026-06-02
AFR841 - 4 2026-07-13
AFR705 Air France 4 2026-04-16
AFR654 - 4 2026-07-18
AFR651 - 4 2026-06-19
AFR828 - 3 2026-06-15
AFR706 Air France 3 2026-06-13
AFR505 - 3 2026-07-08
AFR470 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR346 CDG → YUL Jul 26, 15:20 UTCJul 26, 22:10 UTC6h 50m
2026-07-26 AFR809 FDF → CDG Jul 26, 07:10 UTCJul 26, 08:40 UTC1h 30m
2026-07-26 AFR809 FDF → CDG Jul 26, 00:50 UTCJul 26, 01:00 UTC10m
2026-07-25 AFR816 CDG → HAV Jul 25, 21:55 UTCJul 25, 22:20 UTC25m
2026-07-25 AFR816 CDG → HAV Jul 25, 14:25 UTCJul 25, 15:40 UTC1h 15m
2026-07-24 AFR763 PTP → CDG Jul 24, 14:35 UTCJul 25, 09:00 UTC18h 25m
2026-07-23 AFR763 PTP → CDG Jul 23, 14:35 UTCJul 24, 08:45 UTC18h 10m
2026-07-23 AFR763 PTP → CDG Jul 23, 14:25 UTCJul 24, 08:45 UTC18h 20m
2026-07-23 AFR809 FDF → CDG Jul 23, 06:35 UTCJul 23, 08:25 UTC1h 50m
2026-07-23 AFR809 FDF → CDG Jul 23, 00:45 UTCJul 23, 00:55 UTC10m
2026-07-22 AFR816 CDG → HAV Jul 22, 21:35 UTCJul 22, 21:55 UTC20m
2026-07-22 AFR816 CDG → HAV Jul 22, 14:20 UTCJul 22, 15:40 UTC1h 20m
2026-07-20 AFR647 - Jul 20, 12:45 UTCJul 20, 16:10 UTC3h 25m
2026-07-19 AFR647 - Jul 19, 16:35 UTCJul 20, 16:10 UTC23h 35m
2026-07-19 AFR652 - Jul 19, 15:55 UTCJul 20, 14:30 UTC22h 35m
2026-07-19 AFR643 - Jul 19, 04:35 UTCJul 19, 07:50 UTC3h 15m
2026-07-18 AFR643 - Jul 18, 08:35 UTCJul 19, 07:50 UTC23h 15m
2026-07-18 AFR654 - Jul 18, 07:50 UTCJul 19, 06:30 UTC22h 40m
2026-07-17 AFR771 - Jul 17, 09:50 UTCJul 18, 03:55 UTC18h 6m
2026-07-17 AFR771 - Jul 17, 03:25 UTCJul 17, 06:35 UTC3h 10m
2026-07-16 AFR771 - Jul 16, 10:35 UTCJul 17, 06:35 UTC20h 0m
2026-07-16 AFR771 - Jul 16, 10:15 UTCJul 17, 06:35 UTC20h 20m
2026-07-15 AFR771 - Jul 15, 11:00 UTCJul 16, 05:10 UTC18h 10m
2026-07-15 AFR643 - Jul 15, 03:30 UTCJul 15, 07:30 UTC4h 0m
2026-07-14 AFR643 - Jul 14, 10:45 UTCJul 15, 07:30 UTC20h 44m
2026-07-14 AFR643 - Jul 14, 08:35 UTCJul 15, 07:30 UTC22h 54m
2026-07-14 AFR654 - Jul 14, 07:10 UTCJul 15, 06:30 UTC23h 19m
2026-07-13 AFR841 - Jul 13, 08:35 UTCJul 14, 03:30 UTC18h 55m
2026-07-13 AFR841 - Jul 13, 08:15 UTCJul 14, 03:30 UTC19h 15m
2026-07-12 AFR841 - Jul 12, 08:35 UTCJul 13, 03:30 UTC18h 55m
2026-07-11 AFR841 - Jul 11, 08:35 UTCJul 12, 03:30 UTC18h 55m
2026-07-10 AFR473 - Jul 10, 14:10 UTCJul 10, 17:50 UTC3h 40m
2026-07-09 AFR473 - Jul 9, 20:35 UTCJul 10, 17:50 UTC21h 15m
2026-07-09 AFR473 - Jul 9, 18:35 UTCJul 10, 17:50 UTC23h 15m
2026-07-09 AFR470 - Jul 9, 17:20 UTCJul 10, 16:30 UTC23h 10m
2026-07-08 AFR505 - Jul 8, 21:15 UTCJul 9, 14:00 UTC16h 45m
2026-07-08 AFR504 - Jul 8, 12:35 UTCJul 9, 12:30 UTC23h 55m
2026-07-08 AFR504 - Jul 8, 11:20 UTCJul 9, 03:45 UTC16h 25m
2026-07-08 AFR643 - Jul 8, 04:35 UTCJul 8, 07:45 UTC3h 10m
2026-07-07 AFR643 - Jul 7, 08:35 UTCJul 8, 07:45 UTC23h 10m
2026-07-07 AFR654 - Jul 7, 07:40 UTCJul 8, 06:30 UTC22h 50m
2026-07-06 AFR771 - Jul 6, 09:50 UTCJul 7, 04:10 UTC18h 20m
2026-07-05 AFR345M YUL → CDG Jul 5, 23:55 UTCJul 6, 05:55 UTC6h 0m
2026-07-05 AFR344 - Jul 5, 12:15 UTCJul 5, 19:25 UTC7h 10m
2026-07-04 AFR809 - Jul 4, 14:35 UTCJul 5, 08:40 UTC18h 5m
2026-07-04 AFR816 - Jul 4, 13:25 UTCJul 5, 08:40 UTC19h 15m
2026-07-04 AFR809 - Jul 4, 07:30 UTCJul 4, 08:50 UTC1h 20m
2026-07-03 AFR816 - Jul 3, 13:50 UTCJul 3, 15:20 UTC1h 30m
2026-07-01 AFR473 - Jul 1, 13:35 UTCJul 1, 17:40 UTC4h 5m
2026-06-30 AFR473 - Jun 30, 20:35 UTCJul 1, 17:40 UTC21h 5m

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

Mode-S 394A12 frequently asked

What is Mode-S code 394A12?
394A12 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GSQS.
Where is Mode-S 394A12 registered?
Mode-S code 394A12 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 394A12 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 394A12, octal 16245022, decimal 3,754,514.
What flights does 394A12 operate?
Mode-S 394A12 has broadcast 20 distinct callsigns, including AFR809, AFR816, AFR643, AFR673, AFR473.