Apparatus

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sensors Mode-S transponder

440D8A

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-DDJ · DIAMOND DA-40 Club Star

Hex
440D8A
Octal
21006612
Decimal
4,459,914
Country
AT
Tail
OE-DDJ
Type
DA40
No current signal · last broadcast 15h ago
Flights observed
140
Distinct callsigns
1
Country
AT
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 440D8A.

Country allocation

The ICAO 24-bit address 440D8A 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
OEDDJ - 140 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 OEDDJ - Jul 13, 12:50 UTCJul 13, 15:35 UTC2h 45m
2026-07-13 OEDDJ - Jul 13, 10:00 UTCJul 13, 10:15 UTC15m
2026-07-13 OEDDJ - Jul 13, 07:40 UTCJul 13, 09:20 UTC1h 40m
2026-07-11 OEDDJ - Jul 11, 08:55 UTCJul 11, 10:35 UTC1h 40m
2026-07-10 OEDDJ - Jul 10, 10:45 UTCJul 10, 12:35 UTC1h 50m
2026-07-10 OEDDJ - Jul 10, 07:15 UTCJul 10, 08:00 UTC45m
2026-07-09 OEDDJ - Jul 9, 19:25 UTCJul 9, 19:50 UTC25m
2026-07-09 OEDDJ - Jul 9, 17:00 UTCJul 9, 18:15 UTC1h 15m
2026-07-09 OEDDJ - Jul 9, 10:05 UTCJul 9, 12:15 UTC2h 10m
2026-07-08 OEDDJ - Jul 8, 14:15 UTCJul 8, 15:05 UTC50m
2026-07-08 OEDDJ - Jul 8, 11:05 UTCJul 8, 13:15 UTC2h 10m
2026-07-08 OEDDJ - Jul 8, 07:05 UTCJul 8, 07:50 UTC45m
2026-07-07 OEDDJ - Jul 7, 19:30 UTCJul 7, 19:50 UTC20m
2026-07-07 OEDDJ - Jul 7, 17:05 UTCJul 7, 18:10 UTC1h 5m
2026-07-07 OEDDJ - Jul 7, 09:40 UTCJul 7, 12:35 UTC2h 55m
2026-07-07 OEDDJ - Jul 7, 06:50 UTCJul 7, 08:55 UTC2h 5m
2026-07-06 OEDDJ - Jul 6, 14:35 UTCJul 6, 16:15 UTC1h 40m
2026-07-04 OEDDJ - Jul 4, 12:55 UTCJul 4, 14:45 UTC1h 50m
2026-07-03 OEDDJ - Jul 3, 15:30 UTCJul 3, 17:20 UTC1h 50m
2026-07-03 OEDDJ - Jul 3, 10:05 UTCJul 3, 10:55 UTC50m
2026-07-02 OEDDJ - Jul 2, 13:15 UTCJul 2, 15:20 UTC2h 5m
2026-07-02 OEDDJ - Jul 2, 11:00 UTCJul 2, 12:20 UTC1h 20m
2026-07-02 OEDDJ - Jul 2, 06:15 UTCJul 2, 07:55 UTC1h 40m
2026-07-01 OEDDJ - Jul 1, 14:00 UTCJul 1, 16:50 UTC2h 50m
2026-07-01 OEDDJ - Jul 1, 09:45 UTCJul 1, 12:40 UTC2h 55m
2026-07-01 OEDDJ - Jul 1, 06:15 UTCJul 1, 08:35 UTC2h 20m
2026-06-30 OEDDJ - Jun 30, 15:20 UTCJun 30, 16:15 UTC55m
2026-06-30 OEDDJ - Jun 30, 11:40 UTCJun 30, 14:00 UTC2h 20m
2026-06-30 OEDDJ - Jun 30, 08:00 UTCJun 30, 11:05 UTC3h 5m
2026-06-29 OEDDJ - Jun 29, 08:39 UTCJun 29, 09:29 UTC50m
2026-06-27 OEDDJ - Jun 27, 13:04 UTCJun 27, 13:44 UTC40m
2026-06-27 OEDDJ - Jun 27, 10:00 UTCJun 27, 12:15 UTC2h 15m
2026-06-26 OEDDJ - Jun 26, 12:14 UTCJun 26, 12:55 UTC40m
2026-06-19 OEDDJ - Jun 19, 08:54 UTCJun 19, 10:50 UTC1h 55m
2026-06-19 OEDDJ - Jun 19, 06:20 UTCJun 19, 07:19 UTC1h 0m
2026-06-18 OEDDJ - Jun 18, 11:55 UTCJun 18, 13:50 UTC1h 55m
2026-06-16 OEDDJ - Jun 16, 07:55 UTCJun 16, 09:40 UTC1h 45m
2026-06-15 OEDDJ - Jun 15, 19:35 UTCJun 15, 19:55 UTC20m
2026-06-15 OEDDJ - Jun 15, 17:34 UTCJun 15, 18:50 UTC1h 15m
2026-06-12 OEDDJ - Jun 12, 09:40 UTCJun 12, 11:55 UTC2h 15m
2026-06-11 OEDDJ - Jun 11, 12:10 UTCJun 11, 13:00 UTC50m
2026-06-11 OEDDJ - Jun 11, 10:30 UTCJun 11, 11:30 UTC1h 0m
2026-06-11 OEDDJ - Jun 11, 08:40 UTCJun 11, 08:55 UTC15m
2026-06-11 OEDDJ - Jun 11, 06:15 UTCJun 11, 07:05 UTC50m
2026-06-10 OEDDJ - Jun 10, 14:25 UTCJun 10, 15:00 UTC35m
2026-06-10 OEDDJ - Jun 10, 11:15 UTCJun 10, 13:50 UTC2h 35m
2026-06-08 OEDDJ - Jun 8, 14:15 UTCJun 8, 15:25 UTC1h 10m
2026-06-08 OEDDJ - Jun 8, 12:35 UTCJun 8, 13:45 UTC1h 10m
2026-06-06 OEDDJ - Jun 6, 11:55 UTCJun 6, 13:30 UTC1h 35m
2026-06-06 OEDDJ - Jun 6, 07:10 UTCJun 6, 10:34 UTC3h 25m

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

Mode-S 440D8A frequently asked

What is Mode-S code 440D8A?
440D8A is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-DDJ.
Where is Mode-S 440D8A registered?
Mode-S code 440D8A is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440D8A broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440D8A, octal 21006612, decimal 4,459,914.
What flights does 440D8A operate?
Mode-S 440D8A has broadcast 1 distinct callsign, including OEDDJ.