Apparatus

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sensors Mode-S transponder

447850

ICAO 24-bit transponder address · allocated to Austria

Hex
447850
Octal
21074120
Decimal
4,487,248
Country
AT
No current signal · last broadcast 3d ago
Flights observed
49
Distinct callsigns
1
Country
AT
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 447850.

Country allocation

The ICAO 24-bit address 447850 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
SEG15 - 48 2026-07-24

Recent flights last 49

DateFlightRouteTakeoffLandingDuration
2026-07-24 SEG15 - Jul 24, 07:15 UTCJul 24, 09:20 UTC2h 5m
2026-07-23 SEG15 - Jul 23, 07:25 UTCJul 23, 12:20 UTC4h 55m
2026-07-17 SEG15 - Jul 17, 07:20 UTCJul 17, 12:30 UTC5h 10m
2026-07-14 SEG15 - Jul 14, 07:15 UTCJul 14, 12:20 UTC5h 5m
2026-07-13 SEG15 - Jul 13, 07:01 UTCJul 13, 12:00 UTC5h 0m
2026-07-12 SEG15 - Jul 12, 11:35 UTCJul 12, 15:01 UTC3h 25m
2026-07-12 SEG15 - Jul 12, 10:05 UTCJul 12, 11:05 UTC1h 0m
2026-07-11 SEG15 - Jul 11, 07:15 UTCJul 11, 12:15 UTC5h 0m
2026-07-09 SEG15 - Jul 9, 21:10 UTCJul 10, 02:15 UTC5h 5m
2026-07-08 SEG15 - Jul 8, 13:15 UTCJul 8, 18:15 UTC5h 0m
2026-07-07 SEG15 - Jul 7, 18:15 UTCJul 7, 18:45 UTC30m
2026-07-07 SEG15 - Jul 7, 14:10 UTCJul 7, 17:35 UTC3h 25m
2026-07-06 SEG15 - Jul 6, 15:35 UTCJul 6, 15:55 UTC20m
2026-07-06 SEG15 - Jul 6, 13:00 UTCJul 6, 15:00 UTC2h 0m
2026-07-05 SEG15 - Jul 5, 07:05 UTCJul 5, 12:00 UTC4h 55m
2026-07-04 SEG15 - Jul 4, 07:10 UTCJul 4, 12:05 UTC4h 55m
2026-07-03 SEG15 - Jul 3, 07:10 UTCJul 3, 12:05 UTC4h 55m
2026-07-01 SEG15 - Jul 1, 07:20 UTCJul 1, 12:00 UTC4h 40m
2026-06-30 SEG15 - Jun 30, 06:15 UTCJun 30, 11:10 UTC4h 55m
2026-06-29 SEG15 - Jun 29, 06:09 UTCJun 29, 11:04 UTC4h 55m
2026-06-26 SEG15 - Jun 26, 06:00 UTCJun 26, 10:55 UTC4h 55m
2026-06-24 SEG15 - Jun 24, 06:45 UTCJun 24, 11:39 UTC4h 55m
2026-06-23 SEG15 - Jun 23, 06:04 UTCJun 23, 11:10 UTC5h 5m
2026-06-19 SEG15 - Jun 19, 14:44 UTCJun 19, 14:59 UTC15m
2026-06-04 SEG15 - Jun 4, 06:15 UTCJun 4, 10:25 UTC4h 10m
2026-06-03 SEG15 - Jun 3, 05:10 UTCJun 3, 10:05 UTC4h 55m
2026-06-02 SEG15 - Jun 2, 06:10 UTCJun 2, 11:05 UTC4h 55m
2026-06-01 SEG15 - Jun 1, 09:25 UTCJun 1, 10:00 UTC35m
2026-06-01 SEG15 - Jun 1, 06:25 UTCJun 1, 08:50 UTC2h 25m
2026-05-30 SEG15 - May 30, 07:35 UTCMay 30, 09:35 UTC2h 0m
2026-05-30 SEG15 - May 30, 04:40 UTCMay 30, 05:25 UTC45m
2026-05-29 SEG15 - May 29, 07:00 UTCMay 29, 12:00 UTC5h 0m
2026-05-28 SEG15 - May 28, 07:05 UTCMay 28, 12:00 UTC4h 55m
2026-05-27 SEG15 - May 27, 07:10 UTCMay 27, 12:10 UTC5h 0m
2026-05-20 SEG15 - May 20, 06:45 UTCMay 20, 11:10 UTC4h 25m
2026-05-15 SEG15 - May 15, 09:55 UTCMay 15, 10:05 UTC10m
2026-05-15 - - May 15, 08:40 UTCMay 15, 09:00 UTC20m
2026-05-11 SEG15 - May 11, 06:05 UTCMay 11, 07:00 UTC55m
2026-05-08 SEG15 - May 8, 05:59 UTCMay 8, 11:05 UTC5h 5m
2026-05-07 SEG15 - May 7, 07:35 UTCMay 7, 10:55 UTC3h 20m
2026-05-06 SEG15 - May 6, 06:10 UTCMay 6, 11:00 UTC4h 50m
2026-05-05 SEG15 - May 5, 06:20 UTCMay 5, 11:10 UTC4h 50m
2026-05-04 SEG15 - May 4, 06:45 UTCMay 4, 11:40 UTC4h 55m
2026-05-01 SEG15 - May 1, 06:05 UTCMay 1, 10:55 UTC4h 50m
2026-04-28 SEG15 - Apr 28, 08:05 UTCApr 28, 09:50 UTC1h 45m
2026-04-28 SEG15 - Apr 28, 06:05 UTCApr 28, 07:25 UTC1h 20m
2026-04-27 SEG15 - Apr 27, 06:30 UTCApr 27, 11:20 UTC4h 50m
2026-04-22 SEG15 - Apr 22, 07:35 UTCApr 22, 11:10 UTC3h 35m
2026-04-21 SEG15 - Apr 21, 07:10 UTCApr 21, 12:01 UTC4h 50m

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.

Mode-S 447850 frequently asked

What is Mode-S code 447850?
447850 is an ICAO 24-bit transponder address. Allocated to Austria.
Where is Mode-S 447850 registered?
Mode-S code 447850 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 447850 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 447850, octal 21074120, decimal 4,487,248.
What flights does 447850 operate?
Mode-S 447850 has broadcast 1 distinct callsign, including SEG15.