Apparatus

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sensors Mode-S transponder

440D39

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-GSF · CESSNA 525B Citation CJ3

Hex
440D39
Octal
21006471
Decimal
4,459,833
Country
AT
Tail
OE-GSF
Type
C25B
No current signal · last broadcast 26d ago
Flights observed
89
Distinct callsigns
1
Country
AT
Last broadcast
26d ago

Last known position

Most recent position reported by Mode-S 440D39.

Country allocation

The ICAO 24-bit address 440D39 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
JVW224 - 89 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 JVW224 IBZ → MST Jul 25, 16:05 UTCJul 25, 18:20 UTC2h 15m
2026-07-25 JVW224 RTM → IBZ Jul 25, 12:20 UTCJul 25, 14:50 UTC2h 30m
2026-07-25 JVW224 CEQ → RTM Jul 25, 09:10 UTCJul 25, 10:50 UTC1h 40m
2026-07-24 JVW224 - Jul 24, 14:35 UTCJul 24, 15:50 UTC1h 15m
2026-07-24 JVW224 - Jul 24, 12:15 UTCJul 24, 13:20 UTC1h 5m
2026-07-24 JVW224 - Jul 24, 09:30 UTCJul 24, 11:15 UTC1h 45m
2026-07-23 JVW224 - Jul 23, 18:45 UTCJul 23, 19:35 UTC50m
2026-07-23 JVW224 RKV → BHX Jul 23, 15:00 UTCJul 23, 17:35 UTC2h 35m
2026-07-23 JVW224 - Jul 23, 09:55 UTCJul 23, 13:10 UTC3h 15m
2026-07-22 JVW224 - Jul 22, 14:55 UTCJul 22, 15:20 UTC25m
2026-07-22 JVW224 - Jul 22, 13:20 UTCJul 22, 14:25 UTC1h 5m
2026-07-22 JVW224 - Jul 22, 05:05 UTCJul 22, 05:25 UTC20m
2026-07-20 JVW224 - Jul 20, 16:35 UTCJul 20, 17:40 UTC1h 5m
2026-07-20 JVW224 - Jul 20, 14:05 UTCJul 20, 15:15 UTC1h 10m
2026-07-20 JVW224 - Jul 20, 11:05 UTCJul 20, 11:55 UTC50m
2026-07-20 JVW224 - Jul 20, 06:00 UTCJul 20, 07:00 UTC1h 0m
2026-07-18 JVW224 LPL → AMS Jul 18, 18:15 UTCJul 18, 19:10 UTC55m
2026-07-18 JVW224 - Jul 18, 06:10 UTCJul 18, 07:15 UTC1h 5m
2026-07-17 JVW224 RKV → AMS Jul 17, 13:45 UTCJul 17, 16:40 UTC2h 55m
2026-07-17 JVW224 BHX → RKV Jul 17, 09:45 UTCJul 17, 12:30 UTC2h 45m
2026-07-17 JVW224 - Jul 17, 06:54 UTCJul 17, 07:50 UTC55m
2026-07-16 JVW224 - Jul 16, 14:00 UTCJul 16, 14:40 UTC40m
2026-07-16 JVW224 IBZ → LCY Jul 16, 10:25 UTCJul 16, 12:44 UTC2h 20m
2026-07-15 JVW224 - Jul 15, 17:00 UTCJul 15, 19:05 UTC2h 5m
2026-07-15 JVW224 - Jul 15, 14:30 UTCJul 15, 15:25 UTC55m
2026-07-13 JVW224 VLC → AMS Jul 13, 10:45 UTCJul 13, 13:00 UTC2h 15m
2026-07-13 JVW224 - Jul 13, 08:50 UTCJul 13, 09:30 UTC40m
2026-07-12 JVW224 IBZ → ZAZ Jul 12, 18:30 UTCJul 12, 19:30 UTC1h 0m
2026-07-11 JVW224 LCY → IBZ Jul 11, 06:40 UTCJul 11, 08:55 UTC2h 15m
2026-07-11 JVW224 RTM → LCY Jul 11, 05:01 UTCJul 11, 05:40 UTC40m
2026-07-08 JVW224 LCY → RTM Jul 8, 15:55 UTCJul 8, 16:35 UTC40m
2026-07-08 JVW224 - Jul 8, 13:45 UTCJul 8, 15:00 UTC1h 15m
2026-07-08 JVW224 - Jul 8, 11:10 UTCJul 8, 12:45 UTC1h 35m
2026-07-06 JVW224 - Jul 6, 15:40 UTCJul 6, 16:25 UTC45m
2026-07-06 JVW224 STR → LCY Jul 6, 13:45 UTCJul 6, 15:10 UTC1h 25m
2026-07-06 JVW224 LCY → STR Jul 6, 09:25 UTCJul 6, 10:40 UTC1h 15m
2026-07-06 JVW224 - Jul 6, 07:20 UTCJul 6, 08:05 UTC45m
2026-07-05 JVW224 - Jul 5, 16:05 UTCJul 5, 18:25 UTC2h 20m
2026-07-03 JVW224 - Jul 3, 12:55 UTCJul 3, 14:55 UTC2h 0m
2026-07-02 JVW224 BOH → AMS Jul 2, 08:45 UTCJul 2, 09:40 UTC55m
2026-07-02 JVW224 - Jul 2, 06:30 UTCJul 2, 07:30 UTC1h 0m
2026-07-01 JVW224 - Jul 1, 17:10 UTCJul 1, 19:35 UTC2h 25m
2026-06-30 JVW224 AMS → IBZ Jun 30, 08:25 UTCJun 30, 10:55 UTC2h 30m
2026-06-28 JVW224 BRN → AMS Jun 28, 14:50 UTCJun 28, 16:00 UTC1h 10m
2026-06-28 JVW224 LCY → BRN Jun 28, 12:39 UTCJun 28, 14:04 UTC1h 25m
2026-06-28 JVW224 - Jun 28, 11:09 UTCJun 28, 11:55 UTC45m
2026-06-26 JVW224 - Jun 26, 15:45 UTCJun 26, 16:05 UTC20m
2026-06-26 JVW224 - Jun 26, 14:39 UTCJun 26, 15:20 UTC40m
2026-06-26 JVW224 - Jun 26, 13:15 UTCJun 26, 14:05 UTC50m
2026-06-26 JVW224 AMS → STN Jun 26, 10:39 UTCJun 26, 11:24 UTC45m

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

Mode-S 440D39 frequently asked

What is Mode-S code 440D39?
440D39 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-GSF.
Where is Mode-S 440D39 registered?
Mode-S code 440D39 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440D39 broadcasting right now?
No active broadcast right now. Last signal was 26d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440D39, octal 21006471, decimal 4,459,833.
What flights does 440D39 operate?
Mode-S 440D39 has broadcast 1 distinct callsign, including JVW224.