Apparatus

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sensors Mode-S transponder

3949E9

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GSPJ · BOEING 777-200

Hex
3949E9
Octal
16244751
Decimal
3,754,473
Country
FR
Tail
F-GSPJ
Type
B772
Broadcasting now · callsign AFR218 · 35,000 ft
Flights observed
175
Distinct callsigns
20
Country
FR
Last broadcast
1d ago

Current position

3949E9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3949E9 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
AFR902 Air France 11 2026-05-18
AFR874 - 9 2026-07-07
AFR829 - 8 2026-07-04
AFR59N - 8 2026-07-12
AFR58P - 8 2026-07-11
AFR378E - 7 2026-07-12
AFR377 - 7 2026-07-13
AFR111 Air France 7 2026-05-10
AFR828 - 6 2026-07-03
AFR804 Air France 5 2026-05-24
AFR328K Air France 5 2026-05-12
AFR283 - 5 2026-06-12
AFR837 - 4 2026-06-13
AFR345M - 4 2026-07-10
AFR344 - 4 2026-07-10
AFR327 Air France 4 2026-05-12
AFR284 Air France 4 2026-06-12
AFR093 Air France 4 2026-05-28
AFR092 Air France 4 2026-05-27
AFR357E Air France 3 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AFR377 - Jul 13, 01:40 UTCJul 13, 09:50 UTC8h 10m
2026-07-12 AFR378E - Jul 12, 14:55 UTCJul 12, 23:10 UTC8h 15m
2026-07-12 AFR59N - Jul 12, 02:55 UTCJul 12, 12:01 UTC9h 5m
2026-07-11 AFR58P - Jul 11, 14:35 UTCJul 12, 00:15 UTC9h 40m
2026-07-10 AFR345M YUL → CDG Jul 10, 23:55 UTCJul 11, 07:15 UTC7h 20m
2026-07-10 AFR344 - Jul 10, 12:45 UTCJul 10, 20:10 UTC7h 25m
2026-07-10 AFR345M YUL → CDG Jul 10, 03:35 UTCJul 10, 09:35 UTC6h 0m
2026-07-09 AFR344 - Jul 9, 13:25 UTCJul 9, 20:50 UTC7h 25m
2026-07-09 AFR59N DEN → CDG Jul 9, 00:20 UTCJul 9, 09:40 UTC9h 20m
2026-07-08 AFR58P - Jul 8, 12:10 UTCJul 8, 21:35 UTC9h 25m
2026-07-07 AFR874 - Jul 7, 16:50 UTCJul 8, 06:45 UTC13h 55m
2026-07-07 AFR874 - Jul 7, 10:20 UTCJul 8, 06:45 UTC20h 25m
2026-07-07 AFR874 - Jul 7, 09:10 UTCJul 8, 06:45 UTC21h 35m
2026-07-06 AFR343 YUL → CDG Jul 6, 21:15 UTCJul 7, 03:25 UTC6h 10m
2026-07-06 AFR342T - Jul 6, 10:10 UTCJul 6, 17:05 UTC6h 55m
2026-07-04 AFR099 - Jul 4, 22:30 UTCJul 5, 07:15 UTC8h 45m
2026-07-04 AFR98G - Jul 4, 10:00 UTCJul 4, 19:55 UTC9h 55m
2026-07-04 AFR829 - Jul 4, 01:45 UTCJul 4, 05:05 UTC3h 20m
2026-07-03 AFR828 - Jul 3, 18:00 UTCJul 3, 18:10 UTC10m
2026-07-03 AFR828 - Jul 3, 10:05 UTCJul 3, 14:00 UTC3h 55m
2026-07-02 AFR149 - Jul 2, 14:45 UTCJul 3, 05:45 UTC15h 0m
2026-07-01 AFR59N - Jul 1, 23:55 UTCJul 2, 08:10 UTC8h 15m
2026-07-01 AFR58P - Jul 1, 11:55 UTCJul 1, 21:30 UTC9h 35m
2026-07-01 AFR33J - Jul 1, 00:15 UTCJul 1, 08:10 UTC7h 55m
2026-06-30 AFR32J CDG → ATL Jun 30, 12:25 UTCJun 30, 21:05 UTC8h 40m
2026-06-30 AFR59N - Jun 30, 00:04 UTCJun 30, 08:45 UTC8h 40m
2026-06-29 AFR58P - Jun 29, 11:55 UTCJun 29, 21:30 UTC9h 35m
2026-06-29 AFR89U MSP → CDG Jun 29, 01:14 UTCJun 29, 08:54 UTC7h 40m
2026-06-28 AFR088 CDG → SFO Jun 28, 14:50 UTCJun 28, 22:55 UTC8h 5m
2026-06-28 AFR345M YUL → CDG Jun 28, 00:20 UTCJun 28, 06:40 UTC6h 20m
2026-06-27 AFR344 - Jun 27, 11:59 UTCJun 27, 18:35 UTC6h 35m
2026-06-26 AFR132 - Jun 26, 16:20 UTCJun 27, 07:15 UTC14h 55m
2026-06-26 AFR377 - Jun 26, 01:10 UTCJun 26, 08:24 UTC7h 15m
2026-06-25 AFR378E - Jun 25, 14:29 UTCJun 25, 22:20 UTC7h 50m
2026-06-25 AFR59N - Jun 25, 01:09 UTCJun 25, 09:55 UTC8h 45m
2026-06-24 AFR58P - Jun 24, 12:40 UTCJun 24, 22:35 UTC9h 55m
2026-06-24 AFR829 - Jun 24, 01:24 UTCJun 24, 04:34 UTC3h 10m
2026-06-23 AFR828 - Jun 23, 17:39 UTCJun 23, 17:50 UTC10m
2026-06-23 AFR828 - Jun 23, 09:49 UTCJun 23, 13:15 UTC3h 25m
2026-06-22 AFR836 - Jun 22, 08:19 UTCJun 23, 03:49 UTC19h 30m
2026-06-22 AFR829 - Jun 22, 01:49 UTCJun 22, 04:44 UTC2h 55m
2026-06-21 AFR828 - Jun 21, 17:20 UTCJun 21, 17:29 UTC10m
2026-06-21 AFR828 - Jun 21, 09:24 UTCJun 21, 13:15 UTC3h 50m
2026-06-20 AFR149 - Jun 20, 14:24 UTCJun 21, 05:30 UTC15h 5m
2026-06-19 AFR59N DEN → CDG Jun 19, 23:59 UTCJun 20, 08:44 UTC8h 45m
2026-06-19 AFR58P - Jun 19, 11:59 UTCJun 19, 21:19 UTC9h 20m
2026-06-18 AFR874 CDG → ZNZ Jun 18, 16:25 UTCJun 19, 06:49 UTC14h 24m
2026-06-18 AFR874 CDG → ZNZ Jun 18, 10:20 UTCJun 19, 06:49 UTC20h 29m
2026-06-18 AFR874 CDG → ZNZ Jun 18, 08:30 UTCJun 19, 06:49 UTC22h 19m
2026-06-17 AFR1U - Jun 17, 21:40 UTCJun 18, 03:55 UTC6h 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-GSPJ page for operator, model, and routing details .

Mode-S 3949E9 frequently asked

What is Mode-S code 3949E9?
3949E9 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GSPJ.
Where is Mode-S 3949E9 registered?
Mode-S code 3949E9 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3949E9 broadcasting right now?
Yes. Mode-S 3949E9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3949E9, octal 16244751, decimal 3,754,473.
What flights does 3949E9 operate?
Mode-S 3949E9 has broadcast 20 distinct callsigns, including AFR902, AFR874, AFR829, AFR59N, AFR58P.