Apparatus

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sensors Mode-S transponder

440039

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-LBD · AIRBUS A-321

Hex
440039
Octal
21000071
Decimal
4,456,505
Country
AT
Tail
OE-LBD
Type
A321
No current signal · last broadcast 1h ago
Flights observed
424
Distinct callsigns
20
Country
AT
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 440039.

Country allocation

The ICAO 24-bit address 440039 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 20 distinct

Callsign Airline Flights Last seen
AUA45SM Austrian Airlines 16 2026-06-25
AUA45M - 16 2026-06-25
AUA42B - 15 2026-07-09
AUA40Y - 14 2026-07-09
AUA62W - 11 2026-07-09
AUA61HK - 11 2026-07-09
AUA487 - 10 2026-07-05
AUA99J - 9 2026-07-11
AUA991B - 9 2026-07-11
AUA48M - 9 2026-07-05
AUA251 - 8 2026-07-13
AUA22FA - 8 2026-07-13
AUA57U - 6 2026-07-14
AUA57MP - 6 2026-07-14
AUA25Y - 6 2026-06-25
AUA25N - 6 2026-07-14
AUA25M - 6 2026-06-25
AUA25L - 6 2026-07-14
AUA911F - 5 2026-06-28
AUA68 Austrian Airlines 5 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AUA57U - Jul 14, 18:55 UTCJul 14, 20:10 UTC1h 15m
2026-07-14 AUA57MP - Jul 14, 16:50 UTCJul 14, 17:50 UTC1h 0m
2026-07-14 AUA25L HAM → VIE Jul 14, 14:10 UTCJul 14, 15:20 UTC1h 10m
2026-07-14 AUA25N VIE → HAM Jul 14, 10:55 UTCJul 14, 12:10 UTC1h 15m
2026-07-14 AUA872 RHO → VIE Jul 14, 07:15 UTCJul 14, 09:40 UTC2h 25m
2026-07-14 AUA871 VIE → RHO Jul 14, 04:00 UTCJul 14, 06:05 UTC2h 5m
2026-07-13 AUA826 SKG → VIE Jul 13, 18:25 UTCJul 13, 19:55 UTC1h 30m
2026-07-13 AUA825 VIE → SKG Jul 13, 16:00 UTCJul 13, 17:20 UTC1h 20m
2026-07-13 AUA580 - Jul 13, 13:00 UTCJul 13, 14:45 UTC1h 45m
2026-07-13 AUA579 - Jul 13, 10:15 UTCJul 13, 11:50 UTC1h 35m
2026-07-13 AUA22FA HAM → VIE Jul 13, 07:50 UTCJul 13, 09:05 UTC1h 15m
2026-07-13 AUA251 VIE → HAM Jul 13, 05:25 UTCJul 13, 06:40 UTC1h 15m
2026-07-12 AUA590 - Jul 12, 16:05 UTCJul 12, 17:30 UTC1h 25m
2026-07-12 AUA589 - Jul 12, 13:35 UTCJul 12, 15:01 UTC1h 25m
2026-07-12 AUA76PZ - Jul 12, 11:10 UTCJul 12, 12:20 UTC1h 10m
2026-07-12 AUA761M - Jul 12, 08:40 UTCJul 12, 09:35 UTC55m
2026-07-12 AUA90T CPH → VIE Jul 12, 05:15 UTCJul 12, 06:30 UTC1h 15m
2026-07-11 AUA989D VIE → CPH Jul 11, 19:10 UTCJul 11, 20:35 UTC1h 25m
2026-07-11 AUA796B LCA → VIE Jul 11, 14:30 UTCJul 11, 17:25 UTC2h 55m
2026-07-11 AUA79PA - Jul 11, 10:35 UTCJul 11, 13:15 UTC2h 40m
2026-07-11 AUA99J CPH → VIE Jul 11, 07:55 UTCJul 11, 09:10 UTC1h 15m
2026-07-11 AUA991B VIE → CPH Jul 11, 05:20 UTCJul 11, 06:45 UTC1h 25m
2026-07-10 AUA868 JKL → VIE Jul 10, 18:55 UTCJul 10, 21:00 UTC2h 5m
2026-07-10 AUA867 VIE → KGS Jul 10, 15:45 UTCJul 10, 17:45 UTC2h 0m
2026-07-10 AUA25L - Jul 10, 13:30 UTCJul 10, 14:35 UTC1h 5m
2026-07-10 AUA25N VIE → HAM Jul 10, 11:00 UTCJul 10, 12:15 UTC1h 15m
2026-07-10 AUA204 FRA → VIE Jul 10, 08:40 UTCJul 10, 09:35 UTC55m
2026-07-10 AUA203 VIE → FRA Jul 10, 06:10 UTCJul 10, 07:15 UTC1h 5m
2026-07-09 AUA96P ARN → VIE Jul 9, 18:30 UTCJul 9, 20:05 UTC1h 35m
2026-07-09 AUA96Y VIE → ARN Jul 9, 15:25 UTCJul 9, 17:25 UTC2h 0m
2026-07-09 AUA62W - Jul 9, 13:25 UTCJul 9, 14:15 UTC50m
2026-07-09 AUA61HK - Jul 9, 11:15 UTCJul 9, 12:05 UTC50m
2026-07-09 AUA42B BCN → VIE Jul 9, 08:15 UTCJul 9, 10:10 UTC1h 55m
2026-07-09 AUA40Y VIE → BCN Jul 9, 05:10 UTCJul 9, 07:10 UTC2h 0m
2026-07-08 AUA99B CPH → VIE Jul 8, 18:30 UTCJul 8, 19:35 UTC1h 5m
2026-07-08 AUA99HC VIE → CPH Jul 8, 15:50 UTCJul 8, 17:15 UTC1h 25m
2026-07-08 AUA62W - Jul 8, 13:15 UTCJul 8, 13:55 UTC40m
2026-07-08 AUA61HK - Jul 8, 11:20 UTCJul 8, 12:00 UTC40m
2026-07-08 AUA42B BCN → VIE Jul 8, 08:10 UTCJul 8, 10:10 UTC2h 0m
2026-07-08 AUA40Y VIE → BCN Jul 8, 05:05 UTCJul 8, 07:00 UTC1h 55m
2026-07-07 AUA842 - Jul 7, 18:45 UTCJul 7, 20:50 UTC2h 5m
2026-07-07 AUA84G - Jul 7, 15:50 UTCJul 7, 17:40 UTC1h 50m
2026-07-07 AUA9EX - Jul 7, 11:40 UTCJul 7, 14:40 UTC3h 0m
2026-07-07 AUA79V - Jul 7, 07:45 UTCJul 7, 10:20 UTC2h 35m
2026-07-07 AUA90T - Jul 7, 05:15 UTCJul 7, 06:30 UTC1h 15m
2026-07-06 AUA989D VIE → CPH Jul 6, 19:15 UTCJul 6, 20:45 UTC1h 30m
2026-07-06 AUA796B - Jul 6, 14:40 UTCJul 6, 17:35 UTC2h 55m
2026-07-06 AUA79PA VIE → LCA Jul 6, 10:40 UTCJul 6, 13:20 UTC2h 40m
2026-07-06 AUA99J - Jul 6, 07:55 UTCJul 6, 09:10 UTC1h 15m
2026-07-06 AUA991B VIE → CPH Jul 6, 05:30 UTCJul 6, 06:55 UTC1h 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-LBD page for operator, model, and routing details .

Mode-S 440039 frequently asked

What is Mode-S code 440039?
440039 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-LBD.
Where is Mode-S 440039 registered?
Mode-S code 440039 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440039 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440039, octal 21000071, decimal 4,456,505.
What flights does 440039 operate?
Mode-S 440039 has broadcast 20 distinct callsigns, including AUA45SM, AUA45M, AUA42B, AUA40Y, AUA62W.