Apparatus

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sensors Mode-S transponder

4400BE

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-IAM · BOEING 737-400

Hex
4400BE
Octal
21000276
Decimal
4,456,638
Country
AT
Tail
OE-IAM
Type
B734
Broadcasting now · callsign TAY2MN · 21,850 ft
Flights observed
133
Distinct callsigns
10
Country
AT
Last broadcast
1h ago

Current position

4400BE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4400BE 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 10 distinct

Callsign Airline Flights Last seen
TAY2DI ASL Airlines Belgium 31 2026-05-27
TAY1DI ASL Airlines Belgium 29 2026-05-27
TAY8LL - 25 2026-06-01
TAY7LL - 25 2026-05-31
TAY1MN ASL Airlines Belgium 8 2026-06-02
TAY2MN ASL Airlines Belgium 7 2026-06-02
TAY5KW ASL Airlines Belgium 3 2026-05-08
TAY4KW ASL Airlines Belgium 3 2026-05-08
TAY4998 - 1 2026-04-13
FDX4678 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 TAY2MN LIS → CMN Jun 2, 16:50 UTCJun 2, 17:30 UTC40m
2026-06-02 TAY1MN CDG → LIS Jun 2, 07:00 UTCJun 2, 07:50 UTC50m
2026-06-02 TAY1MN CDG → LIS Jun 2, 03:25 UTCJun 2, 05:35 UTC2h 10m
2026-06-01 TAY8LL ARN → CDG Jun 1, 19:35 UTCJun 1, 22:00 UTC2h 25m
2026-06-01 TAY8LL TLL → ARN Jun 1, 17:30 UTCJun 1, 18:15 UTC45m
2026-05-31 TAY7LL HEL → TLL May 31, 18:30 UTCMay 31, 18:50 UTC20m
2026-05-31 TAY7LL CSF → HEL May 31, 15:05 UTCMay 31, 17:35 UTC2h 30m
2026-05-29 TAY2MN LIS → CMN May 29, 19:40 UTCMay 29, 21:45 UTC2h 5m
2026-05-29 TAY2MN LIS → CMN May 29, 17:00 UTCMay 29, 18:00 UTC1h 0m
2026-05-29 TAY1MN CDG → LIS May 29, 07:05 UTCMay 29, 08:10 UTC1h 5m
2026-05-29 TAY1MN CDG → LIS May 29, 03:25 UTCMay 29, 05:45 UTC2h 20m
2026-05-28 TAY2MN LIS → CMN May 28, 19:15 UTCMay 28, 21:20 UTC2h 5m
2026-05-28 TAY2MN LIS → CMN May 28, 16:45 UTCMay 28, 18:10 UTC1h 25m
2026-05-28 TAY1MN CDG → LIS May 28, 07:00 UTCMay 28, 08:00 UTC1h 0m
2026-05-28 TAY1MN CDG → LIS May 28, 03:20 UTCMay 28, 05:40 UTC2h 20m
2026-05-27 TAY2DI CDG → EMA May 27, 20:50 UTCMay 27, 22:00 UTC1h 10m
2026-05-27 TAY2DI CDG → EMA May 27, 19:15 UTCMay 27, 19:50 UTC35m
2026-05-27 TAY1DI EDI → NCL May 27, 04:45 UTCMay 27, 05:14 UTC30m
2026-05-27 TAY1DI EDI → NCL May 27, 02:24 UTCMay 27, 03:29 UTC1h 5m
2026-05-26 TAY2DI CDG → EMA May 26, 20:40 UTCMay 26, 21:49 UTC1h 10m
2026-05-26 TAY2DI CDG → EMA May 26, 19:20 UTCMay 26, 19:45 UTC25m
2026-05-26 TAY1DI EDI → NCL May 26, 04:30 UTCMay 26, 05:00 UTC30m
2026-05-26 TAY1DI EDI → NCL May 26, 02:29 UTCMay 26, 03:35 UTC1h 5m
2026-05-25 TAY2MN LIS → CMN May 25, 19:40 UTCMay 25, 21:40 UTC2h 0m
2026-05-25 TAY2MN LIS → CMN May 25, 17:40 UTCMay 25, 18:35 UTC55m
2026-05-25 TAY1MN CDG → LIS May 25, 05:10 UTCMay 25, 06:00 UTC50m
2026-05-25 TAY1MN CDG → LIS May 25, 01:55 UTCMay 25, 03:40 UTC1h 45m
2026-05-22 TAY2DI CDG → EMA May 22, 06:00 UTCMay 22, 07:30 UTC1h 30m
2026-05-22 TAY1DI EDI → NCL May 22, 04:30 UTCMay 22, 05:00 UTC30m
2026-05-22 TAY1DI EDI → NCL May 22, 02:30 UTCMay 22, 03:40 UTC1h 10m
2026-05-21 TAY2DI CDG → EMA May 21, 20:40 UTCMay 21, 21:50 UTC1h 10m
2026-05-21 TAY2DI CDG → EMA May 21, 19:05 UTCMay 21, 19:35 UTC30m
2026-05-21 TAY1DI EDI → NCL May 21, 04:35 UTCMay 21, 05:10 UTC35m
2026-05-21 TAY1DI EDI → NCL May 21, 02:30 UTCMay 21, 03:40 UTC1h 10m
2026-05-20 TAY2DI CDG → EMA May 20, 20:45 UTCMay 20, 22:00 UTC1h 15m
2026-05-20 TAY2DI CDG → EMA May 20, 19:15 UTCMay 20, 19:45 UTC30m
2026-05-20 TAY1DI EDI → NCL May 20, 04:35 UTCMay 20, 05:05 UTC31m
2026-05-20 TAY1DI EDI → NCL May 20, 02:30 UTCMay 20, 03:40 UTC1h 10m
2026-05-19 TAY2DI CDG → EMA May 19, 20:45 UTCMay 19, 22:05 UTC1h 20m
2026-05-19 TAY2DI CDG → EMA May 19, 19:10 UTCMay 19, 19:40 UTC30m
2026-05-19 TAY1DI EDI → NCL May 19, 04:30 UTCMay 19, 04:55 UTC25m
2026-05-19 TAY1DI EDI → NCL May 19, 02:30 UTCMay 19, 03:35 UTC1h 5m
2026-05-18 TAY2DI CDG → EMA May 18, 20:40 UTCMay 18, 21:55 UTC1h 15m
2026-05-18 TAY2DI CDG → EMA May 18, 19:20 UTCMay 18, 19:50 UTC30m
2026-05-15 TAY1DI EDI → NCL May 15, 04:40 UTCMay 15, 05:10 UTC30m
2026-05-15 TAY1DI EDI → NCL May 15, 02:50 UTCMay 15, 04:00 UTC1h 10m
2026-05-14 TAY2DI CDG → EMA May 14, 20:45 UTCMay 14, 21:55 UTC1h 10m
2026-05-14 TAY2DI CDG → EMA May 14, 19:15 UTCMay 14, 19:45 UTC30m
2026-05-14 TAY1DI EDI → NCL May 14, 04:25 UTCMay 14, 04:55 UTC30m
2026-05-14 TAY1DI EDI → NCL May 14, 02:25 UTCMay 14, 03:30 UTC1h 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-IAM page for operator, model, and routing details .

Mode-S 4400BE frequently asked

What is Mode-S code 4400BE?
4400BE is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-IAM.
Where is Mode-S 4400BE registered?
Mode-S code 4400BE is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4400BE broadcasting right now?
Yes. Mode-S 4400BE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4400BE, octal 21000276, decimal 4,456,638.
What flights does 4400BE operate?
Mode-S 4400BE has broadcast 10 distinct callsigns, including TAY2DI, TAY1DI, TAY8LL, TAY7LL, TAY1MN.