sensors Mode-S transponder

39BDB8

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HPNY · AIRBUS A220-300

Hex
39BDB8
Octal
16336670
Decimal
3,784,120
Country
FR
Tail
F-HPNY
Type
BCS3
No current signal · last broadcast 15h ago
Flights observed
13
Distinct callsigns
10
Country
FR
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 39BDB8.

Country allocation

The ICAO 24-bit address 39BDB8 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
AFR56QQ - 2 2026-04-13
AFR22KN - 2 2026-04-13
AFR1284 - 2 2026-04-14
AFR88LA - 1 2026-04-12
AFR78RM - 1 2026-04-13
AFR74MB - 1 2026-04-13
AFR52AK - 1 2026-04-14
AFR38SN - 1 2026-04-13
AFR25LD Air France 1 2026-04-12
AFR11QX - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 AFR1284 - Apr 14, 09:10 UTCApr 14, 09:25 UTC15m
2026-04-14 AFR1284 - Apr 14, 07:45 UTCApr 14, 09:05 UTC1h 20m
2026-04-14 AFR52AK - Apr 14, 05:15 UTCApr 14, 06:05 UTC50m
2026-04-13 AFR22KN - Apr 13, 19:50 UTCApr 13, 20:20 UTC30m
2026-04-13 AFR22KN - Apr 13, 17:45 UTCApr 13, 20:10 UTC2h 25m
2026-04-13 AFR56QQ - Apr 13, 14:05 UTCApr 13, 15:05 UTC1h 0m
2026-04-13 AFR56QQ - Apr 13, 12:20 UTCApr 13, 12:50 UTC30m
2026-04-13 AFR74MB - Apr 13, 11:45 UTCApr 13, 12:15 UTC30m
2026-04-13 AFR78RM - Apr 13, 09:10 UTCApr 13, 10:00 UTC50m
2026-04-13 AFR38SN - Apr 13, 07:05 UTCApr 13, 07:55 UTC50m
2026-04-13 AFR11QX - Apr 13, 04:20 UTCApr 13, 05:35 UTC1h 15m
2026-04-12 AFR25LD NAP → CDG Apr 12, 18:55 UTCApr 12, 20:15 UTC1h 20m
2026-04-12 AFR88LA - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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

Mode-S 39BDB8 frequently asked

What is Mode-S code 39BDB8?
39BDB8 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HPNY.
Where is Mode-S 39BDB8 registered?
Mode-S code 39BDB8 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39BDB8 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39BDB8, octal 16336670, decimal 3,784,120.
What flights does 39BDB8 operate?
Mode-S 39BDB8 has broadcast 10 distinct callsigns, including AFR56QQ, AFR22KN, AFR1284, AFR88LA, AFR78RM.