Apparatus

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sensors Mode-S transponder

3949EB

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GSPL · BOEING 777-200

Hex
3949EB
Octal
16244753
Decimal
3,754,475
Country
FR
Tail
F-GSPL
Type
B772
Broadcasting now · callsign AFR829 · 38,000 ft
Flights observed
197
Distinct callsigns
20
Country
FR
Last broadcast
52m ago

Current position

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

Country allocation

The ICAO 24-bit address 3949EB 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
AFR828 - 12 2026-07-13
AFR357E Air France 10 2026-05-26
AFR356G Air France 10 2026-05-26
AFR217 - 10 2026-07-11
AFR218 - 9 2026-07-10
AFR874 - 8 2026-07-05
AFR989 - 6 2026-07-05
AFR988 - 6 2026-07-04
AFR829 - 6 2026-07-14
AFR284 Air France 6 2026-04-22
AFR431 - 5 2026-07-07
AFR430 - 5 2026-07-06
AFR377 Air France 5 2026-06-04
AFR283 Air France 5 2026-04-22
AFR89U Air France 4 2026-07-03
AFR465 Air France 4 2026-05-27
AFR378E Air France 4 2026-06-03
AFR149 - 4 2026-07-03
AFR088 Air France 4 2026-07-02
AFR902 Air France 3 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFR829 - Jul 14, 00:20 UTCJul 14, 02:45 UTC2h 25m
2026-07-13 AFR828 - Jul 13, 17:30 UTCJul 13, 17:50 UTC20m
2026-07-13 AFR828 - Jul 13, 09:45 UTCJul 13, 13:10 UTC3h 25m
2026-07-12 AFR345M - Jul 12, 23:30 UTCJul 13, 06:01 UTC6h 30m
2026-07-12 AFR344 - Jul 12, 12:40 UTCJul 12, 19:30 UTC6h 50m
2026-07-11 AFR837 - Jul 11, 08:50 UTCJul 12, 03:55 UTC19h 5m
2026-07-11 AFR837 - Jul 11, 08:25 UTCJul 12, 03:55 UTC19h 30m
2026-07-11 AFR217 - Jul 11, 01:40 UTCJul 11, 05:10 UTC3h 30m
2026-07-10 AFR217 - Jul 10, 20:10 UTCJul 11, 01:35 UTC5h 25m
2026-07-10 AFR218 - Jul 10, 09:25 UTCJul 10, 17:30 UTC8h 5m
2026-07-10 AFR829 - Jul 10, 02:55 UTCJul 10, 06:10 UTC3h 15m
2026-07-09 AFR828 - Jul 9, 19:25 UTCJul 9, 19:35 UTC10m
2026-07-09 AFR828 - Jul 9, 11:40 UTCJul 9, 14:25 UTC2h 45m
2026-07-09 AFR829A - Jul 9, 05:05 UTCJul 9, 08:25 UTC3h 20m
2026-07-08 AFR828 - Jul 8, 21:30 UTCJul 8, 21:40 UTC10m
2026-07-08 AFR828 - Jul 8, 13:50 UTCJul 8, 17:30 UTC3h 40m
2026-07-07 AFR837A - Jul 7, 15:25 UTCJul 8, 10:25 UTC19h 0m
2026-07-07 AFR431 - Jul 7, 02:10 UTCJul 7, 12:00 UTC9h 50m
2026-07-06 AFR430 - Jul 6, 11:55 UTCJul 6, 22:10 UTC10h 15m
2026-07-05 AFR874 - Jul 5, 16:55 UTCJul 6, 07:25 UTC14h 30m
2026-07-05 AFR874 - Jul 5, 10:50 UTCJul 6, 07:25 UTC20h 35m
2026-07-05 AFR874 - Jul 5, 09:15 UTCJul 6, 07:25 UTC22h 10m
2026-07-05 AFR989 - Jul 5, 01:30 UTCJul 5, 03:25 UTC1h 55m
2026-07-04 AFR989 - Jul 4, 20:30 UTCJul 4, 20:45 UTC15m
2026-07-04 AFR988 - Jul 4, 16:45 UTCJul 4, 17:00 UTC15m
2026-07-04 AFR988 - Jul 4, 10:20 UTCJul 4, 12:25 UTC2h 5m
2026-07-03 AFR149 - Jul 3, 14:20 UTCJul 4, 05:20 UTC15h 0m
2026-07-03 AFR89U MSP → CDG Jul 3, 02:00 UTCJul 3, 09:20 UTC7h 20m
2026-07-02 AFR088 CDG → SFO Jul 2, 14:35 UTCJul 2, 23:35 UTC9h 0m
2026-07-02 AFR89U MSP → CDG Jul 2, 02:50 UTCJul 2, 10:05 UTC7h 15m
2026-07-01 AFR088 CDG → SFO Jul 1, 15:30 UTCJul 2, 00:20 UTC8h 50m
2026-07-01 AFR431 - Jul 1, 02:40 UTCJul 1, 12:25 UTC9h 45m
2026-06-30 AFR430 - Jun 30, 12:55 UTCJun 30, 23:30 UTC10h 35m
2026-06-29 AFR099 - Jun 29, 23:19 UTCJun 30, 07:55 UTC8h 36m
2026-06-29 AFR98G - Jun 29, 10:29 UTCJun 29, 20:35 UTC10h 5m
2026-06-28 AFR132 - Jun 28, 14:14 UTCJun 29, 06:44 UTC16h 30m
2026-06-28 AFR53X IAD → CDG Jun 28, 02:05 UTCJun 28, 08:44 UTC6h 40m
2026-06-27 AFR52X - Jun 27, 16:20 UTCJun 28, 00:00 UTC7h 40m
2026-06-27 AFR33J - Jun 27, 00:20 UTCJun 27, 08:10 UTC7h 50m
2026-06-26 AFR32J CDG → ATL Jun 26, 12:50 UTCJun 26, 21:45 UTC8h 55m
2026-06-26 AFR829 - Jun 26, 02:05 UTCJun 26, 04:34 UTC2h 30m
2026-06-25 AFR828 - Jun 25, 09:45 UTCJun 25, 13:20 UTC3h 35m
2026-06-24 AFR805 - Jun 24, 14:55 UTCJun 25, 05:44 UTC14h 50m
2026-06-24 AFR35T ATL → CDG Jun 24, 02:54 UTCJun 24, 10:35 UTC7h 40m
2026-06-23 AFR34N CDG → ATL Jun 23, 14:44 UTCJun 23, 23:55 UTC9h 10m
2026-06-22 AFR501 - Jun 22, 18:35 UTCJun 23, 11:10 UTC16h 35m
2026-06-22 AFR500 - Jun 22, 08:50 UTCJun 23, 00:50 UTC16h 0m
2026-06-21 AFR132 - Jun 21, 14:19 UTCJun 22, 05:24 UTC15h 5m
2026-06-21 AFR345M YUL → CDG Jun 21, 02:45 UTCJun 21, 09:04 UTC6h 20m
2026-06-20 AFR344 - Jun 20, 11:59 UTCJun 20, 18:54 UTC6h 55m

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

Mode-S 3949EB frequently asked

What is Mode-S code 3949EB?
3949EB is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GSPL.
Where is Mode-S 3949EB registered?
Mode-S code 3949EB is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3949EB broadcasting right now?
Yes. Mode-S 3949EB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3949EB, octal 16244753, decimal 3,754,475.
What flights does 3949EB operate?
Mode-S 3949EB has broadcast 20 distinct callsigns, including AFR828, AFR357E, AFR356G, AFR217, AFR218.