sensors Mode-S transponder

39BDB2

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HPNS · AIRBUS A220-300

Hex
39BDB2
Octal
16336662
Decimal
3,784,114
Country
FR
Tail
F-HPNS
Type
BCS3
No current signal · last broadcast 20h ago
Flights observed
4
Distinct callsigns
4
Country
FR
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 39BDB2.

Country allocation

The ICAO 24-bit address 39BDB2 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 4 distinct

Callsign Airline Flights Last seen
AFR92KE Air France 1 2026-04-12
AFR44VX Air France 1 2026-04-14
AFR19QA - 1 2026-04-14
AFR17GJ - 1 2026-04-14

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 AFR17GJ - Apr 14, 10:10 UTCApr 14, 11:05 UTC55m
2026-04-14 AFR19QA - Apr 14, 07:20 UTCApr 14, 08:40 UTC1h 20m
2026-04-14 AFR44VX CDG → NCE Apr 14, 05:15 UTCApr 14, 06:10 UTC55m
2026-04-12 AFR92KE CDG → NCE Apr 12, 17:50 UTCApr 12, 19:15 UTC1h 25m

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

Mode-S 39BDB2 frequently asked

What is Mode-S code 39BDB2?
39BDB2 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HPNS.
Where is Mode-S 39BDB2 registered?
Mode-S code 39BDB2 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39BDB2 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39BDB2, octal 16336662, decimal 3,784,114.
What flights does 39BDB2 operate?
Mode-S 39BDB2 has broadcast 4 distinct callsigns, including AFR92KE, AFR44VX, AFR19QA, AFR17GJ.