Apparatus

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sensors Mode-S transponder

440A8D

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-IFK · BOEING 747-400

Hex
440A8D
Octal
21005215
Decimal
4,459,149
Country
AT
Tail
OE-IFK
Type
B744
No current signal · last broadcast Jul 26, 13:40 UTC
Flights observed
212
Distinct callsigns
20
Country
AT
Last broadcast
Jul 26, 13:40 UTC

Last known position

Most recent position reported by Mode-S 440A8D.

Country allocation

The ICAO 24-bit address 440A8D 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
TAY401 - 48 2026-07-18
TAY400 ASL Airlines Belgium 46 2026-07-19
TAY802 - 17 2026-07-04
TAY1842 - 15 2026-06-30
TAY1841 - 14 2026-06-29
TAY801 - 12 2026-07-03
TAY827 - 11 2026-07-11
TAY812 - 11 2026-07-07
TAY826 - 7 2026-07-09
TAY811 - 7 2026-07-05
TAY952 ASL Airlines Belgium 4 2026-05-05
TAY951 - 4 2026-05-05
TAY917E ASL Airlines Belgium 4 2026-07-24
TAY400D ASL Airlines Belgium 3 2026-04-13
TAY808 - 2 2026-07-24
TAY1846 ASL Airlines Belgium 2 2026-07-20
TAY1845 ASL Airlines Belgium 2 2026-07-20
TAY810 - 1 2026-07-25
TAY1005 - 1 2026-07-09
TAY1004 - 1 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 TAY810 - Jul 25, 20:50 UTCJul 26, 13:40 UTC16h 51m
2026-07-24 TAY808 - Jul 24, 23:40 UTCJul 25, 16:15 UTC16h 35m
2026-07-24 TAY917E HHN → LGG Jul 24, 20:30 UTCJul 24, 20:50 UTC20m
2026-07-20 TAY917E HHN → LGG Jul 20, 14:45 UTCJul 20, 15:10 UTC25m
2026-07-20 TAY1846 TLV → LGG Jul 20, 08:25 UTCJul 20, 12:35 UTC4h 10m
2026-07-20 TAY1845 LGG → TLV Jul 20, 01:20 UTCJul 20, 04:55 UTC3h 35m
2026-07-19 TAY400 ALA → LGG Jul 19, 07:30 UTCJul 19, 21:00 UTC13h 30m
2026-07-19 TAY400 ALA → LGG Jul 19, 05:20 UTCJul 19, 05:35 UTC15m
2026-07-18 TAY401 LGG → DWC Jul 18, 18:50 UTCJul 19, 02:50 UTC8h 0m
2026-07-18 TAY401 - Jul 18, 09:20 UTCJul 18, 15:25 UTC6h 5m
2026-07-17 TAY400 ALA → LGG Jul 17, 15:44 UTCJul 17, 22:35 UTC6h 50m
2026-07-17 TAY400 ALA → LGG Jul 17, 07:55 UTCJul 17, 11:10 UTC3h 15m
2026-07-17 TAY400 ALA → LGG Jul 17, 05:39 UTCJul 17, 05:55 UTC15m
2026-07-17 TAY401 - Jul 17, 02:20 UTCJul 17, 03:10 UTC50m
2026-07-16 TAY401 - Jul 16, 18:40 UTCJul 17, 00:30 UTC5h 50m
2026-07-16 TAY401 - Jul 16, 09:30 UTCJul 16, 16:25 UTC6h 55m
2026-07-15 TAY400 - Jul 15, 23:15 UTCJul 16, 05:40 UTC6h 25m
2026-07-15 TAY400 - Jul 15, 20:40 UTCJul 15, 21:10 UTC30m
2026-07-15 TAY400 - Jul 15, 16:30 UTCJul 15, 19:40 UTC3h 10m
2026-07-15 TAY400 - Jul 15, 14:15 UTCJul 15, 14:30 UTC15m
2026-07-15 TAY401 - Jul 15, 02:30 UTCJul 15, 08:05 UTC5h 35m
2026-07-14 TAY401 - Jul 14, 17:45 UTCJul 15, 00:40 UTC6h 54m
2026-07-14 TAY400 - Jul 14, 08:00 UTCJul 14, 14:50 UTC6h 50m
2026-07-14 TAY400 - Jul 14, 06:20 UTCJul 14, 06:35 UTC15m
2026-07-14 TAY400 - Jul 14, 01:40 UTCJul 14, 05:10 UTC3h 30m
2026-07-13 TAY400 - Jul 13, 23:35 UTCJul 13, 23:50 UTC15m
2026-07-13 TAY401 - Jul 13, 02:15 UTCJul 13, 13:40 UTC11h 25m
2026-07-12 TAY400 - Jul 12, 17:01 UTCJul 12, 23:40 UTC6h 40m
2026-07-12 TAY400 - Jul 12, 10:45 UTCJul 12, 15:30 UTC4h 45m
2026-07-12 TAY400 - Jul 12, 08:40 UTCJul 12, 08:55 UTC15m
2026-07-11 TAY401 - Jul 11, 22:30 UTCJul 12, 06:20 UTC7h 50m
2026-07-11 TAY401 - Jul 11, 12:20 UTCJul 11, 19:20 UTC7h 0m
2026-07-11 TAY827 - Jul 11, 00:00 UTCJul 11, 06:45 UTC6h 45m
2026-07-10 TAY827 - Jul 10, 01:20 UTCJul 10, 22:15 UTC20h 55m
2026-07-09 TAY827 - Jul 9, 23:20 UTCJul 10, 22:15 UTC22h 55m
2026-07-09 TAY826 - Jul 9, 23:00 UTCJul 10, 18:55 UTC19h 55m
2026-07-09 TAY1005 - Jul 9, 09:55 UTCJul 9, 20:55 UTC11h 0m
2026-07-08 TAY1004 - Jul 8, 01:55 UTCJul 8, 15:15 UTC13h 20m
2026-07-07 TAY812 - Jul 7, 18:00 UTCJul 7, 22:10 UTC4h 10m
2026-07-07 TAY812 - Jul 7, 15:25 UTCJul 7, 17:50 UTC2h 25m
2026-07-07 TAY812 - Jul 7, 06:15 UTCJul 7, 06:30 UTC15m
2026-07-07 TAY812 - Jul 7, 01:35 UTCJul 7, 05:05 UTC3h 30m
2026-07-06 TAY812 - Jul 6, 04:05 UTCJul 7, 03:10 UTC23h 5m
2026-07-05 TAY811 - Jul 5, 18:25 UTCJul 6, 04:35 UTC10h 10m
2026-07-05 TAY1846 TLV → AMM Jul 5, 09:25 UTCJul 5, 13:35 UTC4h 10m
2026-07-05 TAY1845 - Jul 5, 02:55 UTCJul 5, 06:30 UTC3h 35m
2026-07-04 TAY802 - Jul 4, 11:50 UTCJul 4, 18:50 UTC7h 0m
2026-07-04 TAY802 - Jul 4, 09:55 UTCJul 4, 10:20 UTC25m
2026-07-03 TAY801 - Jul 3, 11:20 UTCJul 4, 07:00 UTC19h 40m
2026-07-03 TAY801 - Jul 3, 09:55 UTCJul 4, 07:00 UTC21h 5m

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

Mode-S 440A8D frequently asked

What is Mode-S code 440A8D?
440A8D is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-IFK.
Where is Mode-S 440A8D registered?
Mode-S code 440A8D is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440A8D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440A8D, octal 21005215, decimal 4,459,149.
What flights does 440A8D operate?
Mode-S 440A8D has broadcast 20 distinct callsigns, including TAY401, TAY400, TAY802, TAY1842, TAY1841.