sensors Mode-S transponder

3B75EE

ICAO 24-bit transponder address · allocated to France

Currently assigned to 709FS · PILATUS PC-21

Hex
3B75EE
Octal
16672756
Decimal
3,896,814
Country
FR
Tail
709FS
Type
PC21
No current signal · last broadcast 12h ago
Flights observed
6
Distinct callsigns
4
Country
FR
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 3B75EE.

Country allocation

The ICAO 24-bit address 3B75EE 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
FAF6527 - 2 2026-04-13
FAF6526 - 2 2026-04-13
MUSTN25 - 1 2026-04-13
MAF31 - 1 2026-04-14

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 MAF31 - Apr 14, 09:50 UTCApr 14, 10:50 UTC1h 0m
2026-04-13 FAF6527 - Apr 13, 15:20 UTCApr 13, 15:40 UTC20m
2026-04-13 FAF6527 - Apr 13, 14:35 UTCApr 13, 14:45 UTC10m
2026-04-13 MUSTN25 - Apr 13, 09:30 UTCApr 13, 10:35 UTC1h 5m
2026-04-13 FAF6526 - Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 FAF6526 - Apr 13, 07:10 UTCApr 13, 08:05 UTC55m

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 709FS page for operator, model, and routing details .

Mode-S 3B75EE frequently asked

What is Mode-S code 3B75EE?
3B75EE is an ICAO 24-bit transponder address. Allocated to France. Assigned to 709FS.
Where is Mode-S 3B75EE registered?
Mode-S code 3B75EE is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3B75EE broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3B75EE, octal 16672756, decimal 3,896,814.
What flights does 3B75EE operate?
Mode-S 3B75EE has broadcast 4 distinct callsigns, including FAF6527, FAF6526, MUSTN25, MAF31.