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 Jul 26, 22:15 UTC
Flights observed
489
Distinct callsigns
20
Country
AT
Last broadcast
Jul 26, 22:15 UTC

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 17 2026-07-22
AUA45M - 16 2026-06-25
AUA42B - 15 2026-07-09
AUA40Y - 14 2026-07-09
AUA99J Austrian Airlines 12 2026-07-25
AUA991B Austrian Airlines 12 2026-07-25
AUA62W - 11 2026-07-09
AUA61HK - 11 2026-07-09
AUA487 - 11 2026-07-19
AUA48M - 10 2026-07-19
AUA251 - 8 2026-07-13
AUA22FA - 8 2026-07-13
AUA79PA Austrian Airlines 7 2026-07-25
AUA796B Austrian Airlines 7 2026-07-25
AUA25Y Austrian Airlines 7 2026-07-22
AUA25M Austrian Airlines 7 2026-07-22
AUA826 Austrian Airlines 6 2026-07-21
AUA825 - 6 2026-07-21
AUA57U - 6 2026-07-14
AUA57MP - 6 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AUA76VB VIE → SKP Jul 26, 21:25 UTCJul 26, 22:15 UTC50m
2026-07-26 AUA428M PMI → VIE Jul 26, 17:35 UTCJul 26, 19:30 UTC1h 55m
2026-07-26 AUA423M VIE → PMI Jul 26, 09:00 UTCJul 26, 11:10 UTC2h 10m
2026-07-26 AUA616 AER → VIE Jul 26, 05:25 UTCJul 26, 06:05 UTC40m
2026-07-25 AUA615 VIE → AER Jul 25, 19:25 UTCJul 25, 20:00 UTC35m
2026-07-25 AUA796B LCA → VIE Jul 25, 14:25 UTCJul 25, 17:30 UTC3h 5m
2026-07-25 AUA79PA VIE → LCA Jul 25, 10:40 UTCJul 25, 13:10 UTC2h 30m
2026-07-25 AUA99J VIE → LYS Jul 25, 08:00 UTCJul 25, 09:15 UTC1h 15m
2026-07-25 AUA991B VIE → CPH Jul 25, 05:40 UTCJul 25, 07:00 UTC1h 20m
2026-07-25 AUA76K SKP → VIE Jul 25, 02:45 UTCJul 25, 03:55 UTC1h 10m
2026-07-24 AUA76VB VIE → SKP Jul 24, 21:10 UTCJul 24, 21:55 UTC45m
2026-07-24 AUA26Z BER → VIE Jul 24, 18:00 UTCJul 24, 18:50 UTC50m
2026-07-24 AUA235D VIE → BER Jul 24, 16:05 UTCJul 24, 17:00 UTC55m
2026-07-24 AUA9EX LCA → VIE Jul 24, 12:00 UTCJul 24, 14:50 UTC2h 50m
2026-07-24 AUA7HV VIE → LCA Jul 24, 08:00 UTCJul 24, 10:25 UTC2h 25m
2026-07-23 AUA912 EVN → VIE Jul 23, 21:00 UTCJul 24, 04:30 UTC7h 30m
2026-07-23 AUA428M - Jul 23, 17:15 UTCJul 23, 19:10 UTC1h 55m
2026-07-23 AUA42R VIE → PMI Jul 23, 14:05 UTCJul 23, 16:10 UTC2h 5m
2026-07-23 AUA768 VAR → VIE Jul 23, 11:10 UTCJul 23, 12:45 UTC1h 35m
2026-07-23 AUA767 VIE → PRN Jul 23, 08:25 UTCJul 23, 09:45 UTC1h 20m
2026-07-23 AUA78VE - Jul 23, 03:10 UTCJul 23, 04:20 UTC1h 10m
2026-07-22 AUA747C VIE → PRN Jul 22, 21:35 UTCJul 22, 22:25 UTC50m
2026-07-22 AUA25Y HAM → VIE Jul 22, 19:05 UTCJul 22, 20:10 UTC1h 5m
2026-07-22 AUA25M VIE → HAM Jul 22, 16:50 UTCJul 22, 18:00 UTC1h 10m
2026-07-22 AUA45SM AGP → VIE Jul 22, 12:15 UTCJul 22, 15:00 UTC2h 45m
2026-07-22 AUA78VE - Jul 22, 03:00 UTCJul 22, 04:10 UTC1h 10m
2026-07-21 AUA747C VIE → PRN Jul 21, 21:10 UTCJul 21, 22:05 UTC55m
2026-07-21 AUA826 SKG → VIE Jul 21, 18:20 UTCJul 21, 20:00 UTC1h 40m
2026-07-21 AUA825 VIE → SKG Jul 21, 16:05 UTCJul 21, 17:25 UTC1h 20m
2026-07-21 AUA590 OLB → VIE Jul 21, 13:40 UTCJul 21, 14:55 UTC1h 15m
2026-07-21 AUA589 VIE → OLB Jul 21, 10:40 UTCJul 21, 12:20 UTC1h 40m
2026-07-21 AUA80M AOK → VIE Jul 21, 07:05 UTCJul 21, 09:15 UTC2h 10m
2026-07-21 AUA89E - Jul 21, 03:45 UTCJul 21, 05:45 UTC2h 0m
2026-07-20 AUA826 SKG → VIE Jul 20, 19:00 UTCJul 20, 20:20 UTC1h 20m
2026-07-20 AUA825 VIE → SKG Jul 20, 16:25 UTCJul 20, 17:50 UTC1h 25m
2026-07-20 AUA746 PRN → VIE Jul 20, 14:05 UTCJul 20, 15:10 UTC1h 5m
2026-07-20 AUA745 VIE → SPU Jul 20, 11:35 UTCJul 20, 12:35 UTC1h 0m
2026-07-20 AUA86A CFU → VIE Jul 20, 08:40 UTCJul 20, 10:00 UTC1h 20m
2026-07-20 AUA81H VIE → CFU Jul 20, 05:35 UTCJul 20, 06:40 UTC1h 5m
2026-07-19 AUA48M FNC → VIE Jul 19, 15:55 UTCJul 19, 19:35 UTC3h 40m
2026-07-19 AUA487 VIE → FNC Jul 19, 10:20 UTCJul 19, 14:55 UTC4h 35m
2026-07-19 AUA16G DUS → VIE Jul 19, 08:00 UTCJul 19, 09:10 UTC1h 10m
2026-07-19 AUA16P VIE → DUS Jul 19, 05:25 UTCJul 19, 06:40 UTC1h 15m
2026-07-18 AUA448 IBZ → VIE Jul 18, 17:30 UTCJul 18, 19:45 UTC2h 15m
2026-07-18 AUA447 VIE → IBZ Jul 18, 13:40 UTCJul 18, 16:10 UTC2h 30m
2026-07-18 AUA76PZ - Jul 18, 11:25 UTCJul 18, 12:30 UTC1h 5m
2026-07-18 AUA761M - Jul 18, 09:15 UTCJul 18, 10:15 UTC1h 0m
2026-07-18 AUA90T - Jul 18, 05:05 UTCJul 18, 06:25 UTC1h 20m
2026-07-17 AUA989D VIE → CPH Jul 17, 19:35 UTCJul 17, 20:50 UTC1h 15m
2026-07-17 AUA796B - Jul 17, 14:24 UTCJul 17, 17:20 UTC2h 55m

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 Jul 26, 22:15 UTC.
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, AUA99J.