Apparatus

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sensors Mode-S transponder

394A17

ICAO 24-bit transponder address · allocated to France

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

Hex
394A17
Octal
16245027
Decimal
3,754,519
Country
FR
Tail
F-GSQX
Type
B77W
No current signal · last broadcast 21h ago
Flights observed
142
Distinct callsigns
20
Country
FR
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 394A17.

Country allocation

The ICAO 24-bit address 394A17 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 - 13 2026-07-09
AFR647 - 9 2026-06-26
AFR771 - 7 2026-07-05
AFR763 - 7 2026-07-07
AFR345M - 7 2026-07-03
AFR344 - 7 2026-07-02
AFR758 Air France 6 2026-06-11
AFR673 - 6 2026-06-20
AFR651 - 6 2026-06-14
AFR816 - 5 2026-07-08
AFR650 Air France 5 2026-06-14
AFR643 - 5 2026-07-12
AFR501 - 5 2026-06-21
AFR500 - 5 2026-06-21
AFR770 - 4 2026-07-03
AFR672 Air France 4 2026-06-18
AFR473 Air France 4 2026-05-15
AFR327 - 4 2026-07-12
AFR705 - 3 2026-06-27
AFR359P - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 AFR327 - Jul 12, 22:05 UTCJul 13, 04:40 UTC6h 35m
2026-07-12 AFR328K - Jul 12, 11:55 UTCJul 12, 18:50 UTC6h 55m
2026-07-12 AFR643 - Jul 12, 04:30 UTCJul 12, 07:45 UTC3h 15m
2026-07-11 AFR643 - Jul 11, 09:50 UTCJul 12, 07:45 UTC21h 55m
2026-07-11 AFR643 - Jul 11, 07:50 UTCJul 12, 07:45 UTC23h 55m
2026-07-10 AFR359P - Jul 10, 09:20 UTCJul 10, 11:05 UTC1h 45m
2026-07-10 AFR359P - Jul 10, 04:25 UTCJul 10, 05:55 UTC1h 30m
2026-07-09 AFR358P - Jul 9, 17:35 UTCJul 10, 01:15 UTC7h 40m
2026-07-09 AFR809 - Jul 9, 07:05 UTCJul 9, 08:35 UTC1h 30m
2026-07-08 AFR816 - Jul 8, 14:15 UTCJul 8, 17:10 UTC2h 55m
2026-07-07 AFR763 - Jul 7, 14:10 UTCJul 8, 09:00 UTC18h 50m
2026-07-07 AFR643 - Jul 7, 05:35 UTCJul 7, 08:40 UTC3h 5m
2026-07-06 AFR643 - Jul 6, 09:50 UTCJul 7, 08:40 UTC22h 50m
2026-07-06 AFR654 - Jul 6, 08:25 UTCJul 7, 07:45 UTC23h 20m
2026-07-05 AFR771 - Jul 5, 09:25 UTCJul 6, 03:45 UTC18h 20m
2026-07-04 AFR37VG - Jul 4, 19:00 UTCJul 4, 20:05 UTC1h 5m
2026-07-04 AFR95SK - Jul 4, 16:05 UTCJul 4, 17:05 UTC1h 0m
2026-07-04 AFR37FA - Jul 4, 12:20 UTCJul 4, 13:30 UTC1h 10m
2026-07-04 AFR78HN - Jul 4, 09:10 UTCJul 4, 10:25 UTC1h 15m
2026-07-03 AFR770 - Jul 3, 10:35 UTCJul 4, 05:05 UTC18h 30m
2026-07-03 AFR345M YUL → CDG Jul 3, 00:35 UTCJul 3, 06:40 UTC6h 5m
2026-07-02 AFR344 - Jul 2, 12:15 UTCJul 2, 19:30 UTC7h 15m
2026-07-01 AFR841 - Jul 1, 09:15 UTCJul 2, 03:35 UTC18h 20m
2026-06-30 AFR770 - Jun 30, 09:55 UTCJul 1, 05:15 UTC19h 20m
2026-06-29 AFR770 - Jun 29, 09:34 UTCJun 30, 03:40 UTC18h 6m
2026-06-29 AFR345M YUL → CDG Jun 29, 00:05 UTCJun 29, 06:19 UTC6h 15m
2026-06-28 AFR344 - Jun 28, 12:29 UTCJun 28, 19:25 UTC6h 55m
2026-06-27 AFR705 - Jun 27, 17:09 UTCJun 28, 08:55 UTC15h 45m
2026-06-27 AFR353 - Jun 27, 05:35 UTCJun 27, 06:25 UTC50m
2026-06-26 AFR352 - Jun 26, 20:04 UTCJun 27, 02:35 UTC6h 30m
2026-06-26 AFR647 - Jun 26, 13:10 UTCJun 26, 17:04 UTC3h 55m
2026-06-25 AFR647 - Jun 25, 19:59 UTCJun 26, 17:04 UTC21h 5m
2026-06-25 AFR647 - Jun 25, 17:49 UTCJun 26, 17:04 UTC23h 15m
2026-06-25 AFR652 - Jun 25, 17:05 UTCJun 26, 15:45 UTC22h 40m
2026-06-24 AFR763 - Jun 24, 14:34 UTCJun 25, 09:14 UTC18h 40m
2026-06-24 AFR359P - Jun 24, 04:20 UTCJun 24, 10:45 UTC6h 25m
2026-06-23 AFR358P - Jun 23, 17:20 UTCJun 24, 00:55 UTC7h 35m
2026-06-22 AFR706 - Jun 22, 17:34 UTCJun 23, 08:15 UTC14h 40m
2026-06-21 AFR501 - Jun 21, 18:44 UTCJun 22, 11:04 UTC16h 20m
2026-06-21 AFR500 - Jun 21, 09:49 UTCJun 22, 09:45 UTC23h 55m
2026-06-21 AFR500 - Jun 21, 08:49 UTCJun 22, 03:10 UTC18h 20m
2026-06-20 AFR673 - Jun 20, 00:39 UTCJun 20, 03:39 UTC3h 0m
2026-06-19 AFR673 - Jun 19, 01:50 UTCJun 20, 01:44 UTC23h 55m
2026-06-18 AFR672 MEX → CDG Jun 18, 23:45 UTCJun 19, 02:29 UTC2h 44m
2026-06-17 AFR647 - Jun 17, 13:05 UTCJun 17, 16:50 UTC3h 45m
2026-06-16 AFR647 - Jun 16, 20:00 UTCJun 17, 16:50 UTC20h 50m
2026-06-16 AFR647 - Jun 16, 17:49 UTCJun 17, 16:50 UTC23h 1m
2026-06-16 AFR652 - Jun 16, 16:35 UTCJun 17, 15:46 UTC23h 11m
2026-06-15 AFR763 - Jun 15, 15:50 UTCJun 16, 09:50 UTC18h 0m
2026-06-15 AFR763 - Jun 15, 14:50 UTCJun 16, 09:50 UTC19h 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-GSQX page for operator, model, and routing details .

Mode-S 394A17 frequently asked

What is Mode-S code 394A17?
394A17 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GSQX.
Where is Mode-S 394A17 registered?
Mode-S code 394A17 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 394A17 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 394A17, octal 16245027, decimal 3,754,519.
What flights does 394A17 operate?
Mode-S 394A17 has broadcast 20 distinct callsigns, including AFR809, AFR647, AFR771, AFR763, AFR345M.