sensors Mode-S transponder

3949E6

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GSPG · BOEING 777-200

Hex
3949E6
Octal
16244746
Decimal
3,754,470
Country
FR
Tail
F-GSPG
Type
B772
Broadcasting now · callsign AFR805 · 38,000 ft
Flights observed
110
Distinct callsigns
20
Country
FR
Last broadcast
37m ago

Current position

3949E6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3949E6 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
AFR218 Air France 18 2026-05-15
AFR217 Air France 16 2026-05-15
AFR828 Air France 7 2026-05-23
AFR33J Air France 5 2026-05-01
AFR32J Air France 5 2026-04-30
AFR923 Air France 4 2026-05-28
AFR829 Air France 4 2026-05-24
AFR327 - 4 2026-04-13
AFR940 Air France 3 2026-05-27
AFR902 Air France 3 2026-05-07
AFR651 Air France 3 2026-05-09
AFR378E Air France 3 2026-05-17
AFR377 Air France 3 2026-05-18
AFR111 Air France 3 2026-05-26
AFR836 Air France 2 2026-04-21
AFR719 Air France 2 2026-05-15
AFR345M Air France 2 2026-05-02
AFR344 Air France 2 2026-05-02
AFR132 Air France 2 2026-05-10
AFR116 Air France 2 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFR804 CDG → COO May 29, 14:55 UTCMay 30, 03:30 UTC12h 35m
2026-05-28 AFR923 LBV → CDG May 28, 10:15 UTCMay 29, 03:50 UTC17h 35m
2026-05-27 AFR940 CDG → COO May 27, 11:35 UTCMay 28, 07:00 UTC19h 25m
2026-05-27 AFR940 CDG → COO May 27, 09:35 UTCMay 28, 07:00 UTC21h 25m
2026-05-27 AFR940 CDG → COO May 27, 09:20 UTCMay 28, 07:00 UTC21h 40m
2026-05-26 AFR111 PVG → CDG May 26, 15:20 UTCMay 27, 03:50 UTC12h 30m
2026-05-26 AFR111 PVG → CDG May 26, 07:45 UTCMay 27, 03:50 UTC20h 5m
2026-05-26 AFR111 PVG → CDG May 26, 01:34 UTCMay 27, 01:29 UTC23h 55m
2026-05-25 AFR116 CDG → PVG May 25, 23:35 UTCMay 26, 23:29 UTC23h 55m
2026-05-25 AFR116 CDG → PVG May 25, 21:45 UTCMay 26, 15:35 UTC17h 50m
2026-05-25 AFR093 MIA → CDG May 25, 03:25 UTCMay 25, 12:00 UTC8h 35m
2026-05-24 AFR092 CDG → MIA May 24, 15:15 UTCMay 24, 23:46 UTC8h 31m
2026-05-24 AFR829 COF → COF May 24, 01:35 UTCMay 24, 04:45 UTC3h 10m
2026-05-23 AFR828 CDG → NBO May 23, 17:35 UTCMay 23, 17:50 UTC15m
2026-05-23 AFR828 CDG → NBO May 23, 09:55 UTCMay 23, 13:20 UTC3h 25m
2026-05-23 AFR829 COF → COF May 23, 01:10 UTCMay 23, 05:00 UTC3h 49m
2026-05-22 AFR828 CDG → NBO May 22, 17:20 UTCMay 22, 17:40 UTC20m
2026-05-22 AFR828 CDG → NBO May 22, 09:30 UTCMay 22, 12:25 UTC2h 55m
2026-05-21 AFR093 MIA → CDG May 21, 04:00 UTCMay 21, 12:10 UTC8h 10m
2026-05-20 AFR092 CDG → MIA May 20, 15:05 UTCMay 21, 00:10 UTC9h 5m
2026-05-19 AFR705 ABJ → CDG May 19, 16:50 UTCMay 20, 07:50 UTC15h 1m
2026-05-19 AFR009 - May 19, 05:40 UTCMay 19, 12:20 UTC6h 40m
2026-05-18 AFR010 CDG → JFK May 18, 17:10 UTCMay 19, 00:25 UTC7h 14m
2026-05-18 AFR377 DTW → CDG May 18, 01:05 UTCMay 18, 08:15 UTC7h 10m
2026-05-17 AFR378E CDG → DTW May 17, 14:20 UTCMay 17, 22:15 UTC7h 55m
2026-05-17 AFR377 DTW → CDG May 17, 01:10 UTCMay 17, 08:15 UTC7h 5m
2026-05-16 AFR378E CDG → DTW May 16, 14:11 UTCMay 16, 22:15 UTC8h 4m
2026-05-15 AFR217 BOM → CDG May 15, 20:20 UTCMay 16, 05:35 UTC9h 15m
2026-05-15 AFR218 CDG → BOM May 15, 09:10 UTCMay 15, 17:40 UTC8h 29m
2026-05-15 AFR719 DSS → CDG May 15, 01:25 UTCMay 15, 03:55 UTC2h 30m
2026-05-14 AFR719 DSS → CDG May 14, 23:10 UTCMay 14, 23:30 UTC20m
2026-05-14 AFR718 CDG → DSS May 14, 15:35 UTCMay 14, 20:55 UTC5h 20m
2026-05-14 AFR377 DTW → CDG May 14, 01:10 UTCMay 14, 08:35 UTC7h 25m
2026-05-13 AFR378E CDG → DTW May 13, 14:05 UTCMay 13, 22:00 UTC7h 55m
2026-05-12 AFR923 LBV → CDG May 12, 09:40 UTCMay 13, 03:25 UTC17h 45m
2026-05-10 AFR132 CDG → DFW May 10, 14:25 UTCMay 11, 07:40 UTC17h 15m
2026-05-09 AFR651 CUN → CDG May 9, 21:00 UTCMay 10, 10:49 UTC13h 50m
2026-05-09 AFR651 CUN → CDG May 9, 13:35 UTCMay 10, 10:49 UTC21h 15m
2026-05-09 AFR651 CUN → CDG May 9, 12:25 UTCMay 10, 10:49 UTC22h 25m
2026-05-08 AFR923 LBV → CDG May 8, 08:59 UTCMay 9, 03:30 UTC18h 30m
2026-05-08 AFR923 LBV → CDG May 8, 01:04 UTCMay 8, 03:24 UTC2h 20m
2026-05-07 AFR926 CDG → LBV May 7, 08:55 UTCMay 7, 15:45 UTC6h 50m
2026-05-07 AFR902 CDG → NSI May 7, 03:00 UTCMay 7, 05:25 UTC2h 25m
2026-05-06 AFR902 CDG → NSI May 6, 22:20 UTCMay 6, 22:35 UTC15m
2026-05-06 AFR902 CDG → NSI May 6, 11:25 UTCMay 6, 19:55 UTC8h 29m
2026-05-05 AFR217 BOM → CDG May 5, 12:00 UTCMay 6, 06:35 UTC18h 35m
2026-05-05 AFR218 CDG → BOM May 5, 10:00 UTCMay 5, 11:55 UTC1h 55m
2026-05-04 AFR217 BOM → CDG May 4, 22:35 UTCMay 5, 07:00 UTC8h 25m
2026-05-04 AFR218 CDG → BOM May 4, 17:30 UTCMay 4, 18:05 UTC35m
2026-05-04 AFR218 CDG → BOM May 4, 09:30 UTCMay 4, 16:50 UTC7h 20m

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

Mode-S 3949E6 frequently asked

What is Mode-S code 3949E6?
3949E6 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GSPG.
Where is Mode-S 3949E6 registered?
Mode-S code 3949E6 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3949E6 broadcasting right now?
Yes. Mode-S 3949E6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3949E6, octal 16244746, decimal 3,754,470.
What flights does 3949E6 operate?
Mode-S 3949E6 has broadcast 20 distinct callsigns, including AFR218, AFR217, AFR828, AFR33J, AFR32J.