sensors Mode-S transponder

4408F2

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-XLV · ROBINSON R-22 Mariner

Hex
4408F2
Octal
21004362
Decimal
4,458,738
Country
AT
Tail
OE-XLV
Type
R22
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
1
Country
AT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4408F2.

Country allocation

The ICAO 24-bit address 4408F2 falls within the block assigned to Austria (AT) by ICAO Annex 10, Volume III. Every aircraft registered in Austria 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 1 distinct

Callsign Airline Flights Last seen
OEXLV - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 OEXLV LNZ → LNZ Apr 13, 12:35 UTCApr 13, 13:35 UTC1h 0m
2026-04-13 OEXLV - Apr 13, 08:35 UTCApr 13, 09:30 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 OE-XLV page for operator, model, and routing details .

Mode-S 4408F2 frequently asked

What is Mode-S code 4408F2?
4408F2 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-XLV.
Where is Mode-S 4408F2 registered?
Mode-S code 4408F2 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4408F2 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4408F2, octal 21004362, decimal 4,458,738.
What flights does 4408F2 operate?
Mode-S 4408F2 has broadcast 1 distinct callsign, including OEXLV.