Apparatus

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sensors Mode-S transponder

44036A

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-EPR · PILATUS PC-12

Hex
44036A
Octal
21001552
Decimal
4,457,322
Country
AT
Tail
OE-EPR
Type
PC12
No current signal · last broadcast 1d ago
Flights observed
80
Distinct callsigns
2
Country
AT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 44036A.

Country allocation

The ICAO 24-bit address 44036A 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
GDK56R - 69 2026-07-14
OEEPR - 11 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 OEEPR - Jul 16, 07:35 UTCJul 16, 08:55 UTC1h 20m
2026-07-14 OEEPR - Jul 14, 16:20 UTCJul 14, 16:55 UTC35m
2026-07-14 GDK56R - Jul 14, 14:15 UTCJul 14, 14:50 UTC35m
2026-07-14 GDK56R - Jul 14, 10:15 UTCJul 14, 10:45 UTC30m
2026-07-14 OEEPR - Jul 14, 08:05 UTCJul 14, 08:35 UTC30m
2026-07-13 GDK56R - Jul 13, 08:35 UTCJul 13, 10:15 UTC1h 40m
2026-07-13 GDK56R - Jul 13, 06:10 UTCJul 13, 07:40 UTC1h 30m
2026-07-13 GDK56R - Jul 13, 04:50 UTCJul 13, 05:31 UTC40m
2026-07-02 OEEPR - Jul 2, 15:45 UTCJul 2, 16:30 UTC45m
2026-07-02 OEEPR - Jul 2, 09:25 UTCJul 2, 10:10 UTC45m
2026-06-30 GDK56R - Jun 30, 10:10 UTCJun 30, 11:05 UTC55m
2026-06-30 GDK56R - Jun 30, 07:15 UTCJun 30, 09:00 UTC1h 45m
2026-06-30 GDK56R - Jun 30, 04:55 UTCJun 30, 06:05 UTC1h 10m
2026-06-29 GDK56R - Jun 29, 12:49 UTCJun 29, 13:30 UTC40m
2026-06-29 OEEPR - Jun 29, 10:29 UTCJun 29, 11:04 UTC35m
2026-06-28 GDK56R - Jun 28, 14:09 UTCJun 28, 15:09 UTC1h 0m
2026-06-27 GDK56R - Jun 27, 07:15 UTCJun 27, 08:14 UTC1h 0m
2026-06-25 GDK56R - Jun 25, 13:20 UTCJun 25, 14:14 UTC55m
2026-06-23 GDK56R - Jun 23, 09:14 UTCJun 23, 10:24 UTC1h 10m
2026-06-17 GDK56R - Jun 17, 14:05 UTCJun 17, 14:10 UTC5m
2026-06-17 GDK56R - Jun 17, 12:00 UTCJun 17, 13:15 UTC1h 15m
2026-06-16 GDK56R - Jun 16, 15:09 UTCJun 16, 16:30 UTC1h 20m
2026-06-15 GDK56R - Jun 15, 14:30 UTCJun 15, 15:25 UTC55m
2026-06-15 GDK56R - Jun 15, 13:15 UTCJun 15, 13:54 UTC40m
2026-06-15 GDK56R - Jun 15, 12:10 UTCJun 15, 12:35 UTC25m
2026-06-14 GDK56R - Jun 14, 11:00 UTCJun 14, 12:15 UTC1h 15m
2026-06-13 GDK56R - Jun 13, 08:45 UTCJun 13, 10:15 UTC1h 30m
2026-06-12 GDK56R - Jun 12, 13:00 UTCJun 12, 13:30 UTC30m
2026-06-12 GDK56R - Jun 12, 12:00 UTCJun 12, 12:25 UTC25m
2026-06-12 GDK56R - Jun 12, 09:15 UTCJun 12, 10:55 UTC1h 40m
2026-06-09 GDK56R - Jun 9, 14:35 UTCJun 9, 15:05 UTC30m
2026-06-09 OEEPR - Jun 9, 10:30 UTCJun 9, 11:05 UTC35m
2026-06-09 GDK56R - Jun 9, 08:25 UTCJun 9, 09:15 UTC50m
2026-06-03 GDK56R - Jun 3, 11:15 UTCJun 3, 11:45 UTC30m
2026-06-03 OEEPR - Jun 3, 09:25 UTCJun 3, 10:35 UTC1h 10m
2026-06-03 OEEPR - Jun 3, 06:50 UTCJun 3, 08:35 UTC1h 45m
2026-06-01 GDK56R - Jun 1, 15:30 UTCJun 1, 16:00 UTC30m
2026-06-01 GDK56R - Jun 1, 14:20 UTCJun 1, 14:45 UTC25m
2026-06-01 GDK56R - Jun 1, 12:20 UTCJun 1, 13:30 UTC1h 10m
2026-06-01 GDK56R - Jun 1, 06:30 UTCJun 1, 07:35 UTC1h 5m
2026-05-31 GDK56R - May 31, 09:15 UTCMay 31, 09:45 UTC30m
2026-05-29 OEEPR - May 29, 12:00 UTCMay 29, 15:15 UTC3h 15m
2026-05-29 GDK56R - May 29, 08:40 UTCMay 29, 09:05 UTC25m
2026-05-19 GDK56R - May 19, 07:15 UTCMay 19, 07:45 UTC30m
2026-05-18 GDK56R - May 18, 13:55 UTCMay 18, 14:35 UTC40m
2026-05-16 GDK56R - May 16, 08:26 UTCMay 16, 09:56 UTC1h 30m
2026-05-16 GDK56R - May 16, 07:11 UTCMay 16, 07:35 UTC25m
2026-05-13 GDK56R - May 13, 13:00 UTCMay 13, 13:55 UTC55m
2026-05-13 GDK56R - May 13, 11:05 UTCMay 13, 12:00 UTC55m
2026-05-13 GDK56R - May 13, 08:50 UTCMay 13, 09:45 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-EPR page for operator, model, and routing details .

Mode-S 44036A frequently asked

What is Mode-S code 44036A?
44036A is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-EPR.
Where is Mode-S 44036A registered?
Mode-S code 44036A is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44036A 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 44036A, octal 21001552, decimal 4,457,322.
What flights does 44036A operate?
Mode-S 44036A has broadcast 2 distinct callsigns, including GDK56R, OEEPR.