sensors Mode-S transponder

39BDA4

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HPNE · AIRBUS A220-300

Hex
39BDA4
Octal
16336644
Decimal
3,784,100
Country
FR
Tail
F-HPNE
Type
BCS3
No current signal · last broadcast 18h ago
Flights observed
15
Distinct callsigns
10
Country
FR
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 39BDA4.

Country allocation

The ICAO 24-bit address 39BDA4 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 10 distinct

Callsign Airline Flights Last seen
AFR52AK - 3 2026-04-13
AFR65JZ - 2 2026-04-13
AFR54YT - 2 2026-04-13
AFR42VQ - 2 2026-04-13
AFR94QB - 1 2026-04-14
AFR87JD - 1 2026-04-14
AFR51PD - 1 2026-04-13
AFR24SY - 1 2026-04-13
AFR22KN - 1 2026-04-12
AFR18SQ - 1 2026-04-14

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 AFR18SQ - Apr 14, 10:15 UTCApr 14, 11:05 UTC50m
2026-04-14 AFR94QB - Apr 14, 08:05 UTCApr 14, 09:05 UTC1h 0m
2026-04-14 AFR87JD - Apr 14, 05:15 UTCApr 14, 06:35 UTC1h 20m
2026-04-13 AFR65JZ - Apr 13, 19:50 UTCApr 13, 20:00 UTC10m
2026-04-13 AFR65JZ - Apr 13, 18:05 UTCApr 13, 20:00 UTC1h 55m
2026-04-13 AFR42VQ - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 AFR42VQ - Apr 13, 14:55 UTCApr 13, 16:00 UTC1h 5m
2026-04-13 AFR51PD - Apr 13, 12:35 UTCApr 13, 13:45 UTC1h 10m
2026-04-13 AFR24SY - Apr 13, 09:25 UTCApr 13, 10:15 UTC50m
2026-04-13 AFR54YT - Apr 13, 07:55 UTCApr 13, 08:15 UTC20m
2026-04-13 AFR54YT - Apr 13, 07:40 UTCApr 13, 08:15 UTC35m
2026-04-13 AFR52AK - Apr 13, 04:20 UTCApr 13, 05:55 UTC1h 35m
2026-04-13 AFR52AK - Apr 13, 03:55 UTCApr 13, 05:55 UTC2h 0m
2026-04-13 AFR52AK - Apr 13, 03:10 UTCApr 13, 04:15 UTC1h 5m
2026-04-12 AFR22KN - Apr 12, 18:00 UTCApr 12, 20:15 UTC2h 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-HPNE page for operator, model, and routing details .

Mode-S 39BDA4 frequently asked

What is Mode-S code 39BDA4?
39BDA4 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HPNE.
Where is Mode-S 39BDA4 registered?
Mode-S code 39BDA4 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39BDA4 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39BDA4, octal 16336644, decimal 3,784,100.
What flights does 39BDA4 operate?
Mode-S 39BDA4 has broadcast 10 distinct callsigns, including AFR52AK, AFR65JZ, AFR54YT, AFR42VQ, AFR94QB.