Apparatus

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sensors Mode-S transponder

3950CF

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-GUGP · AIRBUS A-318

Hex
3950CF
Octal
16250317
Decimal
3,756,239
Country
FR
Tail
F-GUGP
Type
A318
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
515
Distinct callsigns
20
Country
FR
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S 3950CF.

Country allocation

The ICAO 24-bit address 3950CF 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
AFR67RZ - 17 2026-07-20
AFR29AT Air France 16 2026-07-20
AFR87GN - 15 2026-07-01
AFR76VN - 15 2026-07-01
AFR16MC Air France 8 2026-07-26
AFR77JJ - 7 2026-07-01
AFR62HP - 7 2026-07-01
AFR37HA - 7 2026-07-14
AFR18DQ Air France 7 2026-07-25
AFR11AM - 7 2026-07-01
AFR1047 - 7 2026-07-01
AFR98LR Air France 6 2026-06-11
AFR91CF Air France 6 2026-07-26
AFR88WE Air France 6 2026-07-26
AFR76SP - 6 2026-06-15
AFR52VY Air France 6 2026-07-26
AFR41WP - 6 2026-06-15
AFR32ZQ - 6 2026-06-27
AFR15NA Air France 6 2026-07-19
AFR87LQ Air France 5 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFR52VY CDG → OPO Jul 26, 19:10 UTCJul 26, 20:55 UTC1h 45m
2026-07-26 AFR31LY HAM → CDG Jul 26, 16:25 UTCJul 26, 17:40 UTC1h 15m
2026-07-26 AFR31UA CDG → BCN Jul 26, 13:55 UTCJul 26, 15:10 UTC1h 15m
2026-07-26 AFR91CF MRS → CDG Jul 26, 10:30 UTCJul 26, 11:45 UTC1h 15m
2026-07-26 AFR88WE NUE → CDG Jul 26, 08:00 UTCJul 26, 09:05 UTC1h 5m
2026-07-26 AFR16MC MRS → CDG Jul 26, 05:05 UTCJul 26, 06:15 UTC1h 10m
2026-07-25 AFR18DQ CDG → MRS Jul 25, 19:45 UTCJul 25, 21:00 UTC1h 15m
2026-07-25 AFR88LA NCE → CDG Jul 25, 17:20 UTCJul 25, 18:30 UTC1h 10m
2026-07-25 AFR99WR CDG → NCE Jul 25, 15:05 UTCJul 25, 16:15 UTC1h 10m
2026-07-25 AFR42XW FLR → CDG Jul 25, 12:10 UTCJul 25, 13:30 UTC1h 20m
2026-07-25 AFR81FB CDG → FLR Jul 25, 09:00 UTCJul 25, 10:35 UTC1h 35m
2026-07-25 AFR49LA NCE → CDG Jul 25, 04:30 UTCJul 25, 05:50 UTC1h 20m
2026-07-24 AFR27QN CDG → NCE Jul 24, 18:20 UTCJul 24, 19:30 UTC1h 10m
2026-07-24 AFR1601 MAD → CDG Jul 24, 15:20 UTCJul 24, 16:40 UTC1h 20m
2026-07-24 AFR56JV - Jul 24, 12:05 UTCJul 24, 13:40 UTC1h 35m
2026-07-24 AFR14SR CDG → FCO Jul 24, 08:45 UTCJul 24, 10:30 UTC1h 45m
2026-07-24 AFR62PQ CDG → FCO Jul 24, 05:10 UTCJul 24, 06:40 UTC1h 30m
2026-07-23 AFR72KQ TLS → CDG Jul 23, 21:05 UTCJul 23, 22:05 UTC1h 0m
2026-07-23 AFR69FW CDG → TLS Jul 23, 19:15 UTCJul 23, 20:10 UTC55m
2026-07-23 AFR31LY HAM → CDG Jul 23, 16:20 UTCJul 23, 17:30 UTC1h 10m
2026-07-23 AFR31UA CDG → BCN Jul 23, 13:55 UTCJul 23, 15:10 UTC1h 15m
2026-07-23 AFR18SQ - Jul 23, 10:30 UTCJul 23, 11:35 UTC1h 5m
2026-07-23 AFR94QB CDG → BIQ Jul 23, 08:00 UTCJul 23, 09:00 UTC1h 0m
2026-07-23 AFR86YY AGP → CDG Jul 23, 04:20 UTCJul 23, 06:30 UTC2h 10m
2026-07-22 AFR32RG CDG → AGP Jul 22, 19:30 UTCJul 22, 21:35 UTC2h 5m
2026-07-22 AFR14BM TLS → CDG Jul 22, 15:40 UTCJul 22, 16:45 UTC1h 5m
2026-07-22 AFR7412 CDG → TLS Jul 22, 13:45 UTCJul 22, 14:40 UTC55m
2026-07-22 AFR18LZ LIS → CDG Jul 22, 04:40 UTCJul 22, 11:55 UTC7h 15m
2026-07-21 AFR64PQ CDG → LIS Jul 21, 19:20 UTCJul 21, 21:35 UTC2h 15m
2026-07-21 AFR42DT NCE → CDG Jul 21, 13:05 UTCJul 21, 14:20 UTC1h 15m
2026-07-21 AFR34EY - Jul 21, 10:35 UTCJul 21, 11:35 UTC1h 0m
2026-07-21 AFR1241 AMS → CDG Jul 21, 07:55 UTCJul 21, 08:40 UTC45m
2026-07-21 AFR79RD CDG → AMS Jul 21, 05:40 UTCJul 21, 06:20 UTC40m
2026-07-20 AFR67RZ - Jul 20, 18:15 UTCJul 20, 20:15 UTC2h 0m
2026-07-20 AFR29AT CDG → AGP Jul 20, 14:40 UTCJul 20, 16:50 UTC2h 10m
2026-07-20 AFR42XW - Jul 20, 11:30 UTCJul 20, 13:00 UTC1h 30m
2026-07-20 AFR81FB - Jul 20, 08:50 UTCJul 20, 10:15 UTC1h 25m
2026-07-20 AFR18LZ LIS → CDG Jul 20, 05:10 UTCJul 20, 07:05 UTC1h 55m
2026-07-19 AFR64PQ CDG → LIS Jul 19, 19:05 UTCJul 19, 21:30 UTC2h 25m
2026-07-19 AFR89QA VLC → CDG Jul 19, 16:00 UTCJul 19, 17:35 UTC1h 35m
2026-07-19 AFR64SV CDG → VLC Jul 19, 13:00 UTCJul 19, 14:40 UTC1h 40m
2026-07-19 AFR13VP - Jul 19, 10:20 UTCJul 19, 11:20 UTC1h 0m
2026-07-19 AFR29FN - Jul 19, 07:45 UTCJul 19, 08:40 UTC55m
2026-07-19 AFR15NA MRS → CDG Jul 19, 04:10 UTCJul 19, 05:25 UTC1h 15m
2026-07-18 AFR18DQ - Jul 18, 18:55 UTCJul 18, 20:00 UTC1h 5m
2026-07-18 AFR98FV - Jul 18, 15:45 UTCJul 18, 16:50 UTC1h 5m
2026-07-18 AFR83HE - Jul 18, 13:35 UTCJul 18, 14:35 UTC1h 0m
2026-07-18 AFR91CF - Jul 18, 10:20 UTCJul 18, 11:25 UTC1h 5m
2026-07-18 AFR88WE - Jul 18, 08:10 UTCJul 18, 09:20 UTC1h 10m
2026-07-18 AFR16MC MRS → CDG Jul 18, 05:25 UTCJul 18, 06:40 UTC1h 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-GUGP page for operator, model, and routing details .

Mode-S 3950CF frequently asked

What is Mode-S code 3950CF?
3950CF is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-GUGP.
Where is Mode-S 3950CF registered?
Mode-S code 3950CF is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3950CF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3950CF, octal 16250317, decimal 3,756,239.
What flights does 3950CF operate?
Mode-S 3950CF has broadcast 20 distinct callsigns, including AFR67RZ, AFR29AT, AFR87GN, AFR76VN, AFR16MC.