Apparatus

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sensors Mode-S transponder

440D90

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-IXN · BOEING 737-800

Hex
440D90
Octal
21006620
Decimal
4,459,920
Country
AT
Tail
OE-IXN
Type
B738
No current signal · last broadcast 4h ago
Flights observed
114
Distinct callsigns
20
Country
AT
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 440D90.

Country allocation

The ICAO 24-bit address 440D90 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
TAY6DN ASL Airlines Belgium 11 2026-05-21
TAY1VQ - 9 2026-05-28
TAY2MN ASL Airlines Belgium 8 2026-05-22
TAY1MN ASL Airlines Belgium 8 2026-05-22
TAY8SR - 7 2026-05-27
TAY6SL ASL Airlines Belgium 6 2026-04-15
TAY5TR ASL Airlines Belgium 6 2026-05-07
TAY5DN ASL Airlines Belgium 6 2026-05-21
TAY5AD ASL Airlines Belgium 5 2026-05-15
TAY7SR ASL Airlines Belgium 4 2026-05-27
TAY2VQ ASL Airlines Belgium 4 2026-05-28
TAY9VC - 3 2026-04-16
TAY7VC - 3 2026-04-22
TAY6TR ASL Airlines Belgium 3 2026-05-07
TAY6CA ASL Airlines Belgium 3 2026-04-23
TAY3WZ - 3 2026-05-17
TAY3EA - 3 2026-05-24
TAY9VX - 2 2026-04-22
TAY8VC - 2 2026-04-16
TAY8LL - 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TAY8LL - May 29, 20:20 UTCMay 29, 21:45 UTC1h 25m
2026-05-29 TAY8LL TLL → BLL May 29, 17:25 UTCMay 29, 18:50 UTC1h 25m
2026-05-29 TAY7LL HEL → TLL May 29, 05:35 UTCMay 29, 05:55 UTC20m
2026-05-29 TAY7LL CDG → HEL May 29, 01:55 UTCMay 29, 04:30 UTC2h 35m
2026-05-28 TAY2VQ VIT → CDG May 28, 20:20 UTCMay 28, 21:30 UTC1h 10m
2026-05-28 TAY2VQ VIT → CDG May 28, 18:10 UTCMay 28, 19:05 UTC55m
2026-05-28 TAY1VQ - May 28, 06:45 UTCMay 28, 07:30 UTC45m
2026-05-28 TAY1VQ - May 28, 02:10 UTCMay 28, 04:05 UTC1h 55m
2026-05-27 TAY8SR MUC → LGG May 27, 21:20 UTCMay 27, 22:20 UTC1h 0m
2026-05-27 TAY8SR - May 27, 18:50 UTCMay 27, 20:05 UTC1h 15m
2026-05-27 TAY7SR TSR → LGG May 27, 04:30 UTCMay 27, 05:29 UTC1h 0m
2026-05-27 TAY7SR TSR → LGG May 27, 01:59 UTCMay 27, 03:09 UTC1h 10m
2026-05-26 TAY2VQ VIT → CDG May 26, 20:29 UTCMay 26, 21:34 UTC1h 5m
2026-05-26 TAY2VQ VIT → CDG May 26, 18:14 UTCMay 26, 19:05 UTC50m
2026-05-26 TAY1VQ - May 26, 05:54 UTCMay 26, 06:44 UTC50m
2026-05-26 TAY1VQ - May 26, 02:15 UTCMay 26, 04:15 UTC2h 0m
2026-05-25 TAY8SR - May 25, 18:50 UTCMay 25, 20:45 UTC1h 54m
2026-05-24 TAY3EA - May 24, 18:05 UTCMay 24, 20:35 UTC2h 30m
2026-05-22 TAY2MN LIS → CMN May 22, 19:35 UTCMay 22, 21:35 UTC2h 0m
2026-05-22 TAY2MN LIS → CMN May 22, 17:25 UTCMay 22, 18:25 UTC1h 0m
2026-05-22 TAY1MN CDG → LIS May 22, 06:50 UTCMay 22, 07:45 UTC55m
2026-05-22 TAY1MN CDG → LIS May 22, 03:20 UTCMay 22, 05:40 UTC2h 20m
2026-05-21 TAY6DN BLL → GDN May 21, 21:15 UTCMay 21, 22:30 UTC1h 15m
2026-05-21 TAY6DN BLL → GDN May 21, 18:40 UTCMay 21, 20:00 UTC1h 20m
2026-05-21 TAY5DN CDG → PRG May 21, 03:55 UTCMay 21, 05:00 UTC1h 5m
2026-05-21 TAY5DN CDG → PRG May 21, 01:50 UTCMay 21, 02:55 UTC1h 5m
2026-05-20 TAY6DN BLL → GDN May 20, 21:15 UTCMay 20, 22:30 UTC1h 15m
2026-05-20 TAY6DN BLL → GDN May 20, 18:40 UTCMay 20, 20:00 UTC1h 20m
2026-05-20 TAY5DN CDG → PRG May 20, 04:05 UTCMay 20, 05:00 UTC56m
2026-05-20 TAY5DN CDG → PRG May 20, 01:55 UTCMay 20, 02:55 UTC1h 0m
2026-05-19 TAY6DN BLL → GDN May 19, 21:15 UTCMay 19, 22:25 UTC1h 10m
2026-05-19 TAY6DN BLL → GDN May 19, 18:40 UTCMay 19, 19:55 UTC1h 15m
2026-05-19 TAY5DN CDG → PRG May 19, 04:05 UTCMay 19, 05:05 UTC1h 0m
2026-05-19 TAY5DN CDG → PRG May 19, 02:15 UTCMay 19, 03:20 UTC1h 5m
2026-05-18 TAY6DN BLL → GDN May 18, 21:20 UTCMay 18, 22:35 UTC1h 15m
2026-05-18 TAY6DN BLL → GDN May 18, 18:40 UTCMay 18, 20:00 UTC1h 20m
2026-05-17 TAY3WZ - May 17, 21:05 UTCMay 17, 21:40 UTC35m
2026-05-17 TAY3WZ - May 17, 18:15 UTCMay 17, 19:55 UTC1h 40m
2026-05-15 TAY5AD MAD → CDG May 15, 20:55 UTCMay 15, 22:45 UTC1h 50m
2026-05-15 TAY5AD MAD → CDG May 15, 18:15 UTCMay 15, 19:00 UTC45m
2026-05-15 TAY1VQ MAD → SVQ May 15, 06:00 UTCMay 15, 06:40 UTC40m
2026-05-15 TAY1VQ - May 15, 02:20 UTCMay 15, 04:20 UTC2h 0m
2026-05-13 TAY8XP - May 13, 21:35 UTCMay 13, 22:35 UTC1h 0m
2026-05-13 TAY7XP MXP → LGG May 13, 02:20 UTCMay 13, 03:20 UTC1h 0m
2026-05-12 TAY8SR - May 12, 21:30 UTCMay 12, 22:31 UTC1h 0m
2026-05-12 TAY8SR - May 12, 18:50 UTCMay 12, 20:05 UTC1h 15m
2026-05-12 TAY7SR TSR → LGG May 12, 04:30 UTCMay 12, 05:35 UTC1h 5m
2026-05-12 TAY7SR TSR → LGG May 12, 02:45 UTCMay 12, 03:20 UTC35m
2026-05-11 TAY8SR - May 11, 21:30 UTCMay 11, 22:35 UTC1h 4m
2026-05-11 TAY8SR - May 11, 18:45 UTCMay 11, 20:00 UTC1h 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-IXN page for operator, model, and routing details .

Mode-S 440D90 frequently asked

What is Mode-S code 440D90?
440D90 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-IXN.
Where is Mode-S 440D90 registered?
Mode-S code 440D90 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440D90 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440D90, octal 21006620, decimal 4,459,920.
What flights does 440D90 operate?
Mode-S 440D90 has broadcast 20 distinct callsigns, including TAY6DN, TAY1VQ, TAY2MN, TAY1MN, TAY8SR.