sensors Mode-S transponder

39BDAB

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HPNL · AIRBUS A220-300

Hex
39BDAB
Octal
16336653
Decimal
3,784,107
Country
FR
Tail
F-HPNL
Type
BCS3
No current signal · last broadcast 13h ago
Flights observed
14
Distinct callsigns
9
Country
FR
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 39BDAB.

Country allocation

The ICAO 24-bit address 39BDAB 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 9 distinct

Callsign Airline Flights Last seen
AFR74KH - 3 2026-04-13
AFR65AR - 2 2026-04-14
AFR1858 - 2 2026-04-13
AFR1274 Air France 2 2026-04-13
AFR71GF - 1 2026-04-14
AFR52RQ Air France 1 2026-04-12
AFR31UA - 1 2026-04-13
AFR31LY - 1 2026-04-13
AFR12DD - 1 2026-04-14

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 AFR12DD - Apr 14, 11:00 UTCApr 14, 11:05 UTC5m
2026-04-14 AFR65AR - Apr 14, 09:10 UTCApr 14, 09:40 UTC30m
2026-04-14 AFR65AR - Apr 14, 08:25 UTCApr 14, 09:05 UTC40m
2026-04-14 AFR71GF - Apr 14, 05:15 UTCApr 14, 06:50 UTC1h 35m
2026-04-13 AFR1274 CDG → OSL Apr 13, 19:50 UTCApr 13, 21:05 UTC1h 15m
2026-04-13 AFR1274 CDG → OSL Apr 13, 19:15 UTCApr 13, 20:10 UTC55m
2026-04-13 AFR31LY - Apr 13, 16:20 UTCApr 13, 17:35 UTC1h 15m
2026-04-13 AFR31UA - Apr 13, 14:10 UTCApr 13, 15:15 UTC1h 5m
2026-04-13 AFR74KH - Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 AFR74KH - Apr 13, 11:55 UTCApr 13, 12:35 UTC40m
2026-04-13 AFR74KH - Apr 13, 09:50 UTCApr 13, 12:15 UTC2h 25m
2026-04-13 AFR1858 - Apr 13, 07:55 UTCApr 13, 08:20 UTC25m
2026-04-13 AFR1858 - Apr 13, 06:05 UTCApr 13, 08:15 UTC2h 10m
2026-04-12 AFR52RQ FCO → CDG Apr 12, 18:35 UTCApr 12, 20:10 UTC1h 35m

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

Mode-S 39BDAB frequently asked

What is Mode-S code 39BDAB?
39BDAB is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HPNL.
Where is Mode-S 39BDAB registered?
Mode-S code 39BDAB is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39BDAB broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39BDAB, octal 16336653, decimal 3,784,107.
What flights does 39BDAB operate?
Mode-S 39BDAB has broadcast 9 distinct callsigns, including AFR74KH, AFR65AR, AFR1858, AFR1274, AFR71GF.