sensors Mode-S transponder

39BDB3

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HPNT · AIRBUS A220-300

Hex
39BDB3
Octal
16336663
Decimal
3,784,115
Country
FR
Tail
F-HPNT
Type
BCS3
No current signal · last broadcast 17h ago
Flights observed
12
Distinct callsigns
11
Country
FR
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 39BDB3.

Country allocation

The ICAO 24-bit address 39BDB3 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 11 distinct

Callsign Airline Flights Last seen
AFR54EF - 2 2026-04-13
AFR91HE - 1 2026-04-13
AFR89YX - 1 2026-04-13
AFR79CJ - 1 2026-04-14
AFR7527 - 1 2026-04-13
AFR7526 - 1 2026-04-12
AFR59NM Air France 1 2026-04-14
AFR43MU - 1 2026-04-13
AFR34MZ - 1 2026-04-13
AFR1605 Air France 1 2026-04-12
AFR1180 - 1 2026-04-13

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 AFR79CJ - Apr 14, 08:10 UTCApr 14, 08:50 UTC40m
2026-04-14 AFR59NM CDG → LHR Apr 14, 06:00 UTCApr 14, 06:50 UTC50m
2026-04-13 AFR54EF - Apr 13, 19:50 UTCApr 13, 20:00 UTC10m
2026-04-13 AFR54EF - Apr 13, 19:15 UTCApr 13, 20:00 UTC45m
2026-04-13 AFR1180 - Apr 13, 16:50 UTCApr 13, 17:40 UTC50m
2026-04-13 AFR89YX - Apr 13, 13:10 UTCApr 13, 14:00 UTC50m
2026-04-13 AFR34MZ - Apr 13, 11:00 UTCApr 13, 11:50 UTC50m
2026-04-13 AFR43MU - Apr 13, 09:00 UTCApr 13, 09:40 UTC40m
2026-04-13 AFR91HE - Apr 13, 07:15 UTCApr 13, 08:00 UTC45m
2026-04-13 AFR7527 MXN → CDG Apr 13, 04:20 UTCApr 13, 05:10 UTC50m
2026-04-12 AFR7526 - Apr 12, 19:55 UTCApr 12, 20:15 UTC20m
2026-04-12 AFR1605 FCO → CDG Apr 12, 17:15 UTCApr 12, 18:25 UTC1h 10m

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

Mode-S 39BDB3 frequently asked

What is Mode-S code 39BDB3?
39BDB3 is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HPNT.
Where is Mode-S 39BDB3 registered?
Mode-S code 39BDB3 is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39BDB3 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39BDB3, octal 16336663, decimal 3,784,115.
What flights does 39BDB3 operate?
Mode-S 39BDB3 has broadcast 11 distinct callsigns, including AFR54EF, AFR91HE, AFR89YX, AFR79CJ, AFR7527.