Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

394A01

ICAO 24-bit transponder address · allocated to France

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

Hex
394A01
Octal
16245001
Decimal
3,754,497
Country
FR
Tail
F-GSQB
Type
B77W
No current signal · last broadcast 2h ago
Flights observed
135
Distinct callsigns
20
Country
FR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 394A01.

Country allocation

The ICAO 24-bit address 394A01 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
AFR1U - 15 2026-06-30
AFR2N - 14 2026-06-30
AFR84E Air France 12 2026-07-04
AFR83K - 12 2026-07-04
AFR031 - 10 2026-07-13
AFR030 - 9 2026-07-13
AFR51N - 6 2026-07-10
AFR50N - 6 2026-07-09
AFR454 Air France 5 2026-06-21
AFR453 Air France 5 2026-06-22
AFR703 Air France 4 2026-06-08
AFR093 Air France 4 2026-06-04
AFR092 Air France 4 2026-06-03
AFR702 Air France 3 2026-05-13
AFR98G - 2 2026-07-10
AFR099 - 2 2026-07-10
AFR966 - 1 2026-07-03
AFR963 - 1 2026-07-03
AFR947 - 1 2026-06-26
AFR946 - 1 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AFR031 - Jul 13, 21:30 UTCJul 14, 00:30 UTC3h 0m
2026-07-13 AFR030 - Jul 13, 09:35 UTCJul 13, 18:10 UTC8h 35m
2026-07-12 AFR031 - Jul 12, 20:55 UTCJul 13, 04:50 UTC7h 55m
2026-07-12 AFR030 - Jul 12, 09:10 UTCJul 12, 17:40 UTC8h 30m
2026-07-11 AFR655 - Jul 11, 22:01 UTCJul 12, 04:55 UTC6h 55m
2026-07-11 AFR662 - Jul 11, 12:35 UTCJul 11, 19:45 UTC7h 10m
2026-07-10 AFR099 - Jul 10, 23:10 UTCJul 11, 07:45 UTC8h 35m
2026-07-10 AFR98G - Jul 10, 10:15 UTCJul 10, 20:10 UTC9h 55m
2026-07-10 AFR51N IAD → CDG Jul 10, 00:05 UTCJul 10, 07:15 UTC7h 10m
2026-07-09 AFR50N - Jul 9, 12:20 UTCJul 9, 20:45 UTC8h 25m
2026-07-08 AFR099 - Jul 8, 22:40 UTCJul 9, 07:50 UTC9h 10m
2026-07-08 AFR98G - Jul 8, 09:40 UTCJul 8, 19:20 UTC9h 40m
2026-07-07 AFR51N IAD → CDG Jul 7, 22:45 UTCJul 8, 05:40 UTC6h 55m
2026-07-07 AFR50N CDG → IAD Jul 7, 12:05 UTCJul 7, 19:40 UTC7h 35m
2026-07-06 AFR51N - Jul 6, 00:20 UTCJul 6, 07:00 UTC6h 40m
2026-07-05 AFR50N CDG → IAD Jul 5, 11:50 UTCJul 5, 19:50 UTC8h 0m
2026-07-04 AFR83K - Jul 4, 22:40 UTCJul 5, 08:45 UTC10h 5m
2026-07-04 AFR84E CDG → SFO Jul 4, 08:50 UTCJul 4, 19:55 UTC11h 5m
2026-07-03 AFR963 - Jul 3, 13:55 UTCJul 3, 18:10 UTC4h 15m
2026-07-03 AFR966 - Jul 3, 08:05 UTCJul 3, 11:50 UTC3h 45m
2026-07-02 AFR386V - Jul 2, 21:50 UTCJul 3, 03:30 UTC5h 40m
2026-07-01 AFR328K - Jul 1, 11:55 UTCJul 1, 19:55 UTC8h 0m
2026-06-30 AFR1U JFK → CDG Jun 30, 20:50 UTCJul 1, 03:15 UTC6h 25m
2026-06-30 AFR2N - Jun 30, 06:55 UTCJun 30, 14:20 UTC7h 25m
2026-06-29 AFR1U - Jun 29, 21:09 UTCJun 30, 03:25 UTC6h 16m
2026-06-29 AFR2N - Jun 29, 07:25 UTCJun 29, 14:54 UTC7h 30m
2026-06-27 AFR1U JFK → CDG Jun 27, 21:10 UTCJun 28, 03:25 UTC6h 15m
2026-06-27 AFR2N - Jun 27, 07:04 UTCJun 27, 14:25 UTC7h 20m
2026-06-26 AFR947 - Jun 26, 19:00 UTCJun 26, 21:15 UTC2h 15m
2026-06-25 AFR946 - Jun 25, 11:10 UTCJun 25, 12:44 UTC1h 35m
2026-06-25 AFR51N IAD → CDG Jun 25, 00:19 UTCJun 25, 06:55 UTC6h 35m
2026-06-24 AFR50N CDG → IAD Jun 24, 13:44 UTCJun 24, 22:00 UTC8h 15m
2026-06-23 AFR83K - Jun 23, 22:55 UTCJun 24, 08:49 UTC9h 55m
2026-06-23 AFR84E CDG → SFO Jun 23, 09:24 UTCJun 23, 20:10 UTC10h 45m
2026-06-22 AFR453 GRU → CDG Jun 22, 17:55 UTCJun 23, 04:39 UTC10h 45m
2026-06-21 AFR454 CDG → GRU Jun 21, 23:10 UTCJun 22, 10:05 UTC10h 55m
2026-06-20 AFR83K SFO → CDG Jun 20, 22:39 UTCJun 21, 09:00 UTC10h 20m
2026-06-20 AFR84E CDG → SFO Jun 20, 08:39 UTCJun 20, 19:19 UTC10h 40m
2026-06-19 AFR453 GRU → CDG Jun 19, 17:59 UTCJun 20, 05:09 UTC11h 10m
2026-06-18 AFR454 CDG → GRU Jun 18, 22:20 UTCJun 19, 09:19 UTC10h 59m
2026-06-16 AFR1U - Jun 16, 21:00 UTCJun 17, 03:15 UTC6h 15m
2026-06-16 AFR2N - Jun 16, 07:05 UTCJun 16, 14:30 UTC7h 25m
2026-06-15 AFR1U JFK → CDG Jun 15, 21:09 UTCJun 16, 03:35 UTC6h 25m
2026-06-15 AFR2N - Jun 15, 07:00 UTCJun 15, 14:24 UTC7h 25m
2026-06-13 AFR51N IAD → CDG Jun 13, 22:35 UTCJun 14, 05:25 UTC6h 50m
2026-06-13 AFR50N CDG → IAD Jun 13, 11:55 UTCJun 13, 19:50 UTC7h 55m
2026-06-12 AFR1U JFK → CDG Jun 12, 21:15 UTCJun 13, 03:45 UTC6h 30m
2026-06-12 AFR2N - Jun 12, 07:50 UTCJun 12, 15:00 UTC7h 10m
2026-06-11 AFR453 GRU → CDG Jun 11, 18:00 UTCJun 12, 04:40 UTC10h 41m
2026-06-10 AFR454 CDG → GRU Jun 10, 22:05 UTCJun 11, 09:20 UTC11h 15m

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

Mode-S 394A01 frequently asked

What is Mode-S code 394A01?
394A01 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GSQB.
Where is Mode-S 394A01 registered?
Mode-S code 394A01 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 394A01 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 394A01, octal 16245001, decimal 3,754,497.
What flights does 394A01 operate?
Mode-S 394A01 has broadcast 20 distinct callsigns, including AFR1U, AFR2N, AFR84E, AFR83K, AFR031.