sensors Mode-S transponder

4409D3

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-XVJ · AIRBUS HELICOPTERS EC-135/635

Hex
4409D3
Octal
21004723
Decimal
4,458,963
Country
AT
Tail
OE-XVJ
Type
EC35
No current signal · last broadcast 1d ago
Flights observed
70
Distinct callsigns
2
Country
AT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4409D3.

Country allocation

The ICAO 24-bit address 4409D3 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 2 distinct

Callsign Airline Flights Last seen
C14 - 66 2026-06-01
CX - 4 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 C14 - Jun 1, 18:10 UTCJun 1, 18:25 UTC15m
2026-06-01 C14 - Jun 1, 17:35 UTCJun 1, 17:45 UTC10m
2026-05-31 C14 - May 31, 08:30 UTCMay 31, 08:40 UTC10m
2026-05-30 C14 - May 30, 12:35 UTCMay 30, 12:50 UTC15m
2026-05-30 C14 - May 30, 11:20 UTCMay 30, 11:55 UTC35m
2026-05-29 C14 - May 29, 12:50 UTCMay 29, 13:20 UTC30m
2026-05-29 C14 - May 29, 12:15 UTCMay 29, 12:25 UTC10m
2026-05-27 C14 - May 27, 12:40 UTCMay 27, 12:55 UTC15m
2026-05-27 C14 - May 27, 11:25 UTCMay 27, 11:50 UTC25m
2026-05-27 C14 - May 27, 10:15 UTCMay 27, 10:25 UTC10m
2026-05-27 C14 - May 27, 00:25 UTCMay 27, 00:34 UTC10m
2026-05-26 C14 - May 26, 15:14 UTCMay 26, 16:00 UTC45m
2026-05-26 C14 - May 26, 08:34 UTCMay 26, 08:59 UTC25m
2026-05-26 C14 - May 26, 08:10 UTCMay 26, 08:24 UTC15m
2026-05-26 C14 - May 26, 04:35 UTCMay 26, 04:50 UTC15m
2026-05-26 C14 - May 26, 03:50 UTCMay 26, 04:04 UTC15m
2026-05-25 C14 - May 25, 22:40 UTCMay 25, 22:55 UTC15m
2026-05-25 C14 - May 25, 21:30 UTCMay 25, 22:00 UTC30m
2026-05-25 C14 - May 25, 20:19 UTCMay 25, 20:45 UTC25m
2026-05-25 C14 - May 25, 13:20 UTCMay 25, 13:35 UTC15m
2026-05-25 C14 - May 25, 12:55 UTCMay 25, 13:00 UTC5m
2026-05-24 C14 - May 24, 18:10 UTCMay 24, 18:25 UTC15m
2026-05-24 C14 - May 24, 17:50 UTCMay 24, 18:00 UTC10m
2026-05-24 C14 - May 24, 08:10 UTCMay 24, 08:25 UTC15m
2026-05-24 C14 - May 24, 07:45 UTCMay 24, 08:00 UTC15m
2026-05-22 C14 - May 22, 10:15 UTCMay 22, 10:25 UTC10m
2026-05-18 C14 - May 18, 22:05 UTCMay 18, 22:20 UTC15m
2026-05-18 C14 - May 18, 21:15 UTCMay 18, 21:30 UTC15m
2026-05-18 C14 - May 18, 18:50 UTCMay 18, 19:10 UTC20m
2026-05-17 C14 - May 17, 17:05 UTCMay 17, 17:20 UTC15m
2026-05-17 C14 - May 17, 16:30 UTCMay 17, 16:40 UTC10m
2026-05-10 C14 - May 10, 22:20 UTCMay 10, 23:35 UTC1h 15m
2026-05-10 C14 - May 10, 14:14 UTCMay 10, 14:45 UTC30m
2026-05-10 C14 - May 10, 13:44 UTCMay 10, 14:00 UTC15m
2026-05-10 C14 - May 10, 10:15 UTCMay 10, 10:24 UTC10m
2026-05-09 C14 - May 9, 14:40 UTCMay 9, 14:55 UTC15m
2026-05-08 C14 - May 8, 23:10 UTCMay 8, 23:30 UTC20m
2026-05-08 C14 - May 8, 22:25 UTCMay 8, 22:40 UTC15m
2026-05-08 C14 - May 8, 10:54 UTCMay 8, 11:25 UTC30m
2026-05-06 C14 - May 6, 10:35 UTCMay 6, 10:50 UTC15m
2026-05-06 C14 - May 6, 10:01 UTCMay 6, 10:15 UTC15m
2026-05-05 C14 - May 5, 06:05 UTCMay 5, 06:20 UTC15m
2026-05-05 C14 - May 5, 05:30 UTCMay 5, 05:45 UTC15m
2026-05-04 C14 - May 4, 23:00 UTCMay 4, 23:20 UTC20m
2026-05-04 C14 - May 4, 22:10 UTCMay 4, 22:30 UTC20m
2026-05-04 C14 - May 4, 20:25 UTCMay 4, 20:55 UTC30m
2026-05-04 C14 - May 4, 12:10 UTCMay 4, 12:50 UTC40m
2026-05-04 C14 - May 4, 11:55 UTCMay 4, 12:05 UTC10m
2026-05-04 C14 - May 4, 10:45 UTCMay 4, 11:30 UTC45m
2026-05-04 C14 - May 4, 10:05 UTCMay 4, 10:15 UTC10m

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

Mode-S 4409D3 frequently asked

What is Mode-S code 4409D3?
4409D3 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-XVJ.
Where is Mode-S 4409D3 registered?
Mode-S code 4409D3 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4409D3 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 4409D3, octal 21004723, decimal 4,458,963.
What flights does 4409D3 operate?
Mode-S 4409D3 has broadcast 2 distinct callsigns, including C14, CX.