sensors Mode-S transponder

39E68E

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HZUO · AIRBUS A220-300

Hex
39E68E
Octal
16363216
Decimal
3,794,574
Country
FR
Tail
F-HZUO
Type
BCS3
No current signal · last broadcast 14h ago
Flights observed
10
Distinct callsigns
8
Country
FR
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 39E68E.

Country allocation

The ICAO 24-bit address 39E68E 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 8 distinct

Callsign Airline Flights Last seen
AFR53FD - 2 2026-04-13
AFR14XY - 2 2026-04-14
AFR78HN - 1 2026-04-13
AFR64SD Air France 1 2026-04-13
AFR54HF Air France 1 2026-04-14
AFR51GN - 1 2026-04-13
AFR37FA - 1 2026-04-13
AFR1694 - 1 2026-04-12

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 AFR14XY - Apr 14, 09:10 UTCApr 14, 10:10 UTC1h 0m
2026-04-14 AFR14XY - Apr 14, 08:25 UTCApr 14, 09:05 UTC40m
2026-04-14 AFR54HF CDG → CPH Apr 14, 05:45 UTCApr 14, 07:10 UTC1h 25m
2026-04-13 AFR51GN BUD → CDG Apr 13, 17:10 UTCApr 13, 19:00 UTC1h 50m
2026-04-13 AFR53FD - Apr 13, 15:50 UTCApr 13, 16:10 UTC20m
2026-04-13 AFR53FD - Apr 13, 14:20 UTCApr 13, 16:10 UTC1h 50m
2026-04-13 AFR37FA - Apr 13, 10:45 UTCApr 13, 11:55 UTC1h 10m
2026-04-13 AFR78HN - Apr 13, 08:20 UTCApr 13, 09:35 UTC1h 15m
2026-04-13 AFR64SD BUD → CDG Apr 13, 04:25 UTCApr 13, 06:20 UTC1h 55m
2026-04-12 AFR1694 - Apr 12, 18:25 UTCApr 12, 20:05 UTC1h 40m

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

Mode-S 39E68E frequently asked

What is Mode-S code 39E68E?
39E68E is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HZUO.
Where is Mode-S 39E68E registered?
Mode-S code 39E68E is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39E68E broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39E68E, octal 16363216, decimal 3,794,574.
What flights does 39E68E operate?
Mode-S 39E68E has broadcast 8 distinct callsigns, including AFR53FD, AFR14XY, AFR78HN, AFR64SD, AFR54HF.