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
No current signal · last broadcast 15h ago
Flights observed
156
Distinct callsigns
8
Country
AT
Last broadcast
15h 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 8 distinct

Callsign Airline Flights Last seen
AUA41 - 36 2026-07-12
AUA42 - 34 2026-07-12
AUA55 - 23 2026-07-11
AUA56 - 22 2026-07-11
AUA31X - 17 2026-07-13
AUA32X Austrian Airlines 16 2026-07-07
AUA3VG - 4 2026-06-15
AUA38 - 4 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AUA31X VIE → BOS Jul 13, 12:10 UTCJul 13, 20:20 UTC8h 10m
2026-07-12 AUA42 IAD → VIE Jul 12, 21:35 UTCJul 13, 06:15 UTC8h 40m
2026-07-12 AUA41 VIE → IAD Jul 12, 09:25 UTCJul 12, 18:30 UTC9h 5m
2026-07-11 AUA56 YUL → VIE Jul 11, 23:20 UTCJul 12, 06:50 UTC7h 30m
2026-07-11 AUA55 VIE → YUL Jul 11, 09:20 UTCJul 11, 17:40 UTC8h 20m
2026-07-09 AUA42 IAD → VIE Jul 9, 22:10 UTCJul 10, 06:20 UTC8h 10m
2026-07-09 AUA41 VIE → IAD Jul 9, 09:05 UTCJul 9, 19:05 UTC10h 0m
2026-07-08 AUA56 YUL → VIE Jul 8, 23:00 UTCJul 9, 06:30 UTC7h 30m
2026-07-08 AUA55 VIE → YUL Jul 8, 09:20 UTCJul 8, 17:45 UTC8h 25m
2026-07-07 AUA32X AMS → VIE Jul 7, 21:30 UTCJul 8, 05:00 UTC7h 30m
2026-07-06 AUA31X VIE → BOS Jul 6, 08:55 UTCJul 6, 17:35 UTC8h 40m
2026-07-05 AUA56 YUL → VIE Jul 5, 23:05 UTCJul 6, 06:20 UTC7h 15m
2026-07-05 AUA55 VIE → YUL Jul 5, 09:20 UTCJul 5, 17:45 UTC8h 25m
2026-07-04 AUA32X AMS → VIE Jul 4, 21:35 UTCJul 5, 04:50 UTC7h 15m
2026-07-03 AUA31X VIE → BOS Jul 3, 12:15 UTCJul 3, 21:05 UTC8h 50m
2026-07-02 AUA32X AMS → VIE Jul 2, 21:55 UTCJul 3, 05:05 UTC7h 10m
2026-07-01 AUA31X VIE → BOS Jul 1, 09:20 UTCJul 1, 17:50 UTC8h 30m
2026-06-30 AUA42 IAD → VIE Jun 30, 21:50 UTCJul 1, 06:10 UTC8h 20m
2026-06-30 AUA41 VIE → IAD Jun 30, 09:45 UTCJun 30, 18:35 UTC8h 50m
2026-06-29 AUA56 YUL → VIE Jun 29, 23:25 UTCJun 30, 06:50 UTC7h 26m
2026-06-29 AUA55 VIE → YUL Jun 29, 09:25 UTCJun 29, 17:30 UTC8h 5m
2026-06-27 AUA42 IAD → VIE Jun 27, 21:40 UTCJun 28, 05:34 UTC7h 55m
2026-06-27 AUA41 VIE → IAD Jun 27, 09:55 UTCJun 27, 18:45 UTC8h 50m
2026-06-26 AUA42 IAD → VIE Jun 26, 21:39 UTCJun 27, 05:39 UTC8h 0m
2026-06-26 AUA41 VIE → IAD Jun 26, 09:10 UTCJun 26, 18:29 UTC9h 20m
2026-06-25 AUA32X AMS → VIE Jun 25, 21:50 UTCJun 26, 05:05 UTC7h 15m
2026-06-24 AUA31X VIE → BOS Jun 24, 09:05 UTCJun 24, 17:55 UTC8h 50m
2026-06-23 AUA56 YUL → VIE Jun 23, 23:44 UTCJun 24, 06:59 UTC7h 15m
2026-06-23 AUA55 VIE → YUL Jun 23, 10:49 UTCJun 23, 17:59 UTC7h 10m
2026-06-23 AUA55 VIE → YUL Jun 23, 09:29 UTCJun 23, 10:44 UTC1h 15m
2026-06-22 AUA42 IAD → VIE Jun 22, 22:19 UTCJun 23, 06:19 UTC8h 0m
2026-06-22 AUA41 VIE → IAD Jun 22, 09:14 UTCJun 22, 18:40 UTC9h 25m
2026-06-21 AUA42 IAD → VIE Jun 21, 21:44 UTCJun 22, 05:44 UTC8h 0m
2026-06-21 AUA41 VIE → IAD Jun 21, 09:35 UTCJun 21, 18:50 UTC9h 15m
2026-06-20 AUA42 IAD → VIE Jun 20, 22:14 UTCJun 21, 06:10 UTC7h 55m
2026-06-20 AUA41 VIE → IAD Jun 20, 09:09 UTCJun 20, 18:19 UTC9h 10m
2026-06-18 AUA32X AMS → VIE Jun 18, 21:30 UTCJun 19, 05:00 UTC7h 29m
2026-06-17 AUA31X VIE → BOS Jun 17, 08:55 UTCJun 17, 17:20 UTC8h 25m
2026-06-16 AUA42 IAD → VIE Jun 16, 21:50 UTCJun 17, 05:45 UTC7h 55m
2026-06-16 AUA41 VIE → IAD Jun 16, 09:10 UTCJun 16, 18:29 UTC9h 20m
2026-06-15 AUA38 EWR → VIE Jun 15, 22:05 UTCJun 16, 05:50 UTC7h 45m
2026-06-15 AUA3VG VIE → EWR Jun 15, 08:45 UTCJun 15, 17:40 UTC8h 55m
2026-06-14 AUA38 EWR → VIE Jun 14, 21:35 UTCJun 15, 05:15 UTC7h 40m
2026-06-14 AUA3VG VIE → EWR Jun 14, 08:45 UTCJun 14, 17:50 UTC9h 5m
2026-06-13 AUA32X AMS → VIE Jun 13, 21:40 UTCJun 14, 04:50 UTC7h 10m
2026-06-12 AUA31X VIE → BOS Jun 12, 10:30 UTCJun 12, 18:50 UTC8h 20m
2026-06-11 AUA38 EWR → VIE Jun 11, 23:05 UTCJun 12, 07:00 UTC7h 56m
2026-06-11 AUA3VG VIE → EWR Jun 11, 09:10 UTCJun 11, 17:55 UTC8h 45m
2026-06-10 AUA42 IAD → VIE Jun 10, 22:05 UTCJun 11, 06:20 UTC8h 15m
2026-06-10 AUA41 VIE → IAD Jun 10, 09:00 UTCJun 10, 18:15 UTC9h 15m

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?
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 44003F, octal 21000077, decimal 4,456,511.
What flights does 44003F operate?
Mode-S 44003F has broadcast 8 distinct callsigns, including AUA41, AUA42, AUA55, AUA56, AUA31X.