Apparatus

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sensors Mode-S transponder

44003F

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-LAZ · BOEING 767-300

Hex
44003F
Octal
21000077
Decimal
4,456,511
Country
AT
Tail
OE-LAZ
Type
B763
Transponder active on ground
Flights observed
89
Distinct callsigns
6
Country
AT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 44003F.

Country allocation

The ICAO 24-bit address 44003F 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 6 distinct

Callsign Airline Flights Last seen
AUA41 Austrian Airlines 20 2026-05-28
AUA42 Austrian Airlines 19 2026-05-28
AUA56 Austrian Airlines 16 2026-05-27
AUA55 Austrian Airlines 16 2026-05-27
AUA32X Austrian Airlines 9 2026-05-26
AUA31X Austrian Airlines 9 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 AUA42 IAD → VIE May 28, 21:40 UTCMay 29, 06:00 UTC8h 20m
2026-05-28 AUA41 VIE → IAD May 28, 16:15 UTCMay 28, 18:05 UTC1h 50m
2026-05-28 AUA41 VIE → IAD May 28, 09:05 UTCMay 28, 16:05 UTC7h 0m
2026-05-27 AUA56 YUL → VIE May 27, 22:40 UTCMay 28, 06:15 UTC7h 35m
2026-05-27 AUA55 VIE → YUL May 27, 09:20 UTCMay 27, 17:25 UTC8h 5m
2026-05-26 AUA32X AMS → VIE May 26, 21:44 UTCMay 27, 05:19 UTC7h 35m
2026-05-25 AUA31X VIE → BOS May 25, 08:55 UTCMay 25, 17:25 UTC8h 30m
2026-05-24 AUA56 YUL → VIE May 24, 23:10 UTCMay 25, 06:40 UTC7h 30m
2026-05-24 AUA55 VIE → YUL May 24, 09:20 UTCMay 24, 17:50 UTC8h 30m
2026-05-23 AUA42 IAD → VIE May 23, 21:40 UTCMay 24, 05:45 UTC8h 5m
2026-05-23 AUA41 VIE → IAD May 23, 09:05 UTCMay 23, 18:30 UTC9h 26m
2026-05-22 AUA42 IAD → VIE May 22, 21:50 UTCMay 23, 05:40 UTC7h 49m
2026-05-22 AUA41 VIE → IAD May 22, 09:20 UTCMay 22, 18:30 UTC9h 10m
2026-05-21 AUA32X AMS → VIE May 21, 21:35 UTCMay 22, 04:45 UTC7h 10m
2026-05-20 AUA31X VIE → BOS May 20, 09:00 UTCMay 20, 17:40 UTC8h 40m
2026-05-19 AUA42 IAD → VIE May 19, 22:05 UTCMay 20, 06:15 UTC8h 11m
2026-05-19 AUA41 VIE → IAD May 19, 09:10 UTCMay 19, 18:30 UTC9h 20m
2026-05-18 AUA56 YUL → VIE May 18, 23:05 UTCMay 19, 06:40 UTC7h 35m
2026-05-18 AUA55 VIE → YUL May 18, 09:15 UTCMay 18, 17:30 UTC8h 15m
2026-05-16 AUA42 IAD → VIE May 16, 21:35 UTCMay 17, 05:50 UTC8h 15m
2026-05-16 AUA41 VIE → IAD May 16, 09:01 UTCMay 16, 18:25 UTC9h 25m
2026-05-15 AUA42 IAD → VIE May 15, 21:45 UTCMay 16, 06:01 UTC8h 16m
2026-05-15 AUA41 VIE → IAD May 15, 09:00 UTCMay 15, 18:20 UTC9h 19m
2026-05-14 AUA42 IAD → VIE May 14, 21:45 UTCMay 15, 06:00 UTC8h 15m
2026-05-14 AUA41 VIE → IAD May 14, 09:05 UTCMay 14, 18:50 UTC9h 45m
2026-05-13 AUA42 IAD → VIE May 13, 21:45 UTCMay 14, 05:50 UTC8h 5m
2026-05-13 AUA41 VIE → IAD May 13, 09:10 UTCMay 13, 18:40 UTC9h 30m
2026-05-12 AUA32X AMS → VIE May 12, 21:45 UTCMay 13, 05:15 UTC7h 30m
2026-05-11 AUA31X VIE → BOS May 11, 08:50 UTCMay 11, 17:30 UTC8h 40m
2026-05-10 AUA42 IAD → VIE May 10, 21:59 UTCMay 11, 06:15 UTC8h 15m
2026-05-10 AUA41 VIE → IAD May 10, 09:00 UTCMay 10, 18:29 UTC9h 30m
2026-05-09 AUA56 YUL → VIE May 9, 23:09 UTCMay 10, 06:30 UTC7h 20m
2026-05-09 AUA55 VIE → YUL May 9, 09:25 UTCMay 9, 17:40 UTC8h 15m
2026-05-07 AUA56 YUL → VIE May 7, 22:50 UTCMay 8, 06:25 UTC7h 35m
2026-05-07 AUA55 VIE → YUL May 7, 09:10 UTCMay 7, 17:40 UTC8h 30m
2026-05-06 AUA42 IAD → VIE May 6, 21:50 UTCMay 7, 06:05 UTC8h 15m
2026-05-06 AUA41 VIE → IAD May 6, 09:10 UTCMay 6, 18:45 UTC9h 34m
2026-05-05 AUA32X AMS → VIE May 5, 21:25 UTCMay 6, 05:05 UTC7h 40m
2026-05-04 AUA31X VIE → BOS May 4, 08:55 UTCMay 4, 17:30 UTC8h 35m
2026-05-03 AUA56 YUL → VIE May 3, 23:04 UTCMay 4, 06:35 UTC7h 30m
2026-05-03 AUA55 VIE → YUL May 3, 09:15 UTCMay 3, 17:29 UTC8h 15m
2026-05-02 AUA32X AMS → VIE May 2, 21:40 UTCMay 3, 05:20 UTC7h 39m
2026-05-01 AUA31X VIE → BOS May 1, 09:00 UTCMay 1, 17:15 UTC8h 15m
2026-04-30 AUA56 YUL → VIE Apr 30, 22:55 UTCMay 1, 06:35 UTC7h 40m
2026-04-30 AUA55 VIE → YUL Apr 30, 09:15 UTCApr 30, 17:10 UTC7h 55m
2026-04-29 AUA42 IAD → VIE Apr 29, 22:15 UTCApr 30, 06:40 UTC8h 24m
2026-04-29 AUA41 VIE → IAD Apr 29, 09:05 UTCApr 29, 18:10 UTC9h 5m
2026-04-28 AUA42 IAD → VIE Apr 28, 21:35 UTCApr 29, 06:15 UTC8h 40m
2026-04-28 AUA41 VIE → IAD Apr 28, 09:15 UTCApr 28, 18:30 UTC9h 15m
2026-04-27 AUA56 YUL → VIE Apr 27, 23:00 UTCApr 28, 06:40 UTC7h 40m

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

Mode-S 44003F frequently asked

What is Mode-S code 44003F?
44003F is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-LAZ.
Where is Mode-S 44003F registered?
Mode-S code 44003F is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44003F broadcasting right now?
Mode-S 44003F is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44003F, octal 21000077, decimal 4,456,511.
What flights does 44003F operate?
Mode-S 44003F has broadcast 6 distinct callsigns, including AUA41, AUA42, AUA56, AUA55, AUA32X.