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
No current signal · last broadcast 1d ago
Flights observed
252
Distinct callsigns
15
Country
AT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4400BE.

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 15 distinct

Callsign Airline Flights Last seen
TAY2DI - 53 2026-07-16
TAY1DI - 51 2026-07-17
TAY7LL - 45 2026-07-14
TAY8LL - 43 2026-07-14
TAY2MN - 22 2026-07-10
TAY1MN - 22 2026-07-10
TAY5KW ASL Airlines Belgium 3 2026-05-08
TAY4KW ASL Airlines Belgium 3 2026-05-08
TAY5VA - 2 2026-07-13
TAY4PO - 2 2026-07-03
TAY4998 - 2 2026-07-13
TAY4999 - 1 2026-07-11
TAY4717 - 1 2026-06-15
TAY3PO - 1 2026-07-03
FDX4678 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 TAY1DI CDG → MME Jul 17, 02:45 UTCJul 17, 03:50 UTC1h 5m
2026-07-16 TAY2DI - Jul 16, 20:49 UTCJul 16, 22:05 UTC1h 15m
2026-07-16 TAY2DI EDI → MME Jul 16, 19:14 UTCJul 16, 19:45 UTC30m
2026-07-16 TAY1DI MME → EDI Jul 16, 04:35 UTCJul 16, 05:00 UTC25m
2026-07-16 TAY1DI CDG → MME Jul 16, 02:35 UTCJul 16, 03:40 UTC1h 5m
2026-07-15 TAY2DI - Jul 15, 20:45 UTCJul 15, 22:05 UTC1h 20m
2026-07-15 TAY2DI EDI → MME Jul 15, 19:20 UTCJul 15, 19:50 UTC30m
2026-07-15 TAY1DI MME → EDI Jul 15, 04:30 UTCJul 15, 04:55 UTC25m
2026-07-15 TAY1DI CDG → MME Jul 15, 02:35 UTCJul 15, 03:35 UTC1h 0m
2026-07-14 TAY8LL - Jul 14, 19:30 UTCJul 14, 21:40 UTC2h 10m
2026-07-14 TAY8LL TLL → ARN Jul 14, 17:35 UTCJul 14, 18:25 UTC50m
2026-07-14 TAY7LL HEL → TLL Jul 14, 05:30 UTCJul 14, 05:50 UTC20m
2026-07-14 TAY7LL - Jul 14, 01:45 UTCJul 14, 04:20 UTC2h 35m
2026-07-13 TAY5VA - Jul 13, 22:00 UTCJul 13, 22:50 UTC50m
2026-07-13 TAY5VA - Jul 13, 20:30 UTCJul 13, 20:45 UTC15m
2026-07-13 TAY4998 - Jul 13, 18:25 UTCJul 13, 19:20 UTC55m
2026-07-11 TAY4999 - Jul 11, 00:15 UTCJul 11, 00:50 UTC35m
2026-07-10 TAY2MN LIS → CDG Jul 10, 19:40 UTCJul 10, 21:45 UTC2h 5m
2026-07-10 TAY2MN - Jul 10, 17:20 UTCJul 10, 18:05 UTC45m
2026-07-10 TAY1MN - Jul 10, 06:55 UTCJul 10, 07:50 UTC55m
2026-07-10 TAY1MN - Jul 10, 03:30 UTCJul 10, 05:40 UTC2h 10m
2026-07-09 TAY8LL ARN → CDG Jul 9, 19:30 UTCJul 9, 21:45 UTC2h 15m
2026-07-09 TAY8LL TLL → ARN Jul 9, 17:35 UTCJul 9, 18:15 UTC40m
2026-07-09 TAY7LL HEL → TLL Jul 9, 05:30 UTCJul 9, 05:50 UTC20m
2026-07-09 TAY7LL - Jul 9, 01:45 UTCJul 9, 04:25 UTC2h 40m
2026-07-08 TAY2DI CDG → EMA Jul 8, 21:00 UTCJul 8, 22:15 UTC1h 15m
2026-07-08 TAY2DI CDG → EMA Jul 8, 19:10 UTCJul 8, 19:45 UTC35m
2026-07-08 TAY1DI - Jul 8, 04:45 UTCJul 8, 05:20 UTC35m
2026-07-08 TAY1DI - Jul 8, 02:40 UTCJul 8, 03:50 UTC1h 10m
2026-07-07 TAY2DI CDG → EMA Jul 7, 20:35 UTCJul 7, 21:45 UTC1h 10m
2026-07-07 TAY2DI CDG → EMA Jul 7, 19:10 UTCJul 7, 19:35 UTC25m
2026-07-07 TAY1DI - Jul 7, 04:30 UTCJul 7, 05:00 UTC30m
2026-07-07 TAY1DI - Jul 7, 02:25 UTCJul 7, 03:40 UTC1h 15m
2026-07-06 TAY2MN LIS → CDG Jul 6, 19:45 UTCJul 6, 21:55 UTC2h 10m
2026-07-06 TAY2MN - Jul 6, 17:35 UTCJul 6, 18:35 UTC1h 0m
2026-07-06 TAY1MN LIS → CMN Jul 6, 05:15 UTCJul 6, 06:15 UTC1h 0m
2026-07-06 TAY1MN - Jul 6, 01:45 UTCJul 6, 03:50 UTC2h 5m
2026-07-03 TAY4PO - Jul 3, 22:40 UTCJul 4, 00:05 UTC1h 25m
2026-07-03 TAY4PO - Jul 3, 20:30 UTCJul 3, 21:15 UTC45m
2026-07-03 TAY3PO CDG → OPO Jul 3, 03:30 UTCJul 3, 05:20 UTC1h 50m
2026-07-02 TAY8LL ARN → CDG Jul 2, 19:25 UTCJul 2, 21:50 UTC2h 25m
2026-07-02 TAY8LL TLL → ARN Jul 2, 17:30 UTCJul 2, 18:15 UTC45m
2026-07-02 TAY7LL HEL → TLL Jul 2, 05:55 UTCJul 2, 06:15 UTC20m
2026-07-02 TAY7LL CDG → HEL Jul 2, 02:15 UTCJul 2, 04:45 UTC2h 30m
2026-07-01 TAY8LL ARN → CDG Jul 1, 19:25 UTCJul 1, 21:35 UTC2h 10m
2026-07-01 TAY8LL TLL → ARN Jul 1, 17:35 UTCJul 1, 18:20 UTC45m
2026-07-01 TAY7LL HEL → TLL Jul 1, 05:30 UTCJul 1, 05:45 UTC15m
2026-07-01 TAY7LL CDG → HEL Jul 1, 01:45 UTCJul 1, 04:05 UTC2h 20m
2026-06-30 TAY8LL ARN → CDG Jun 30, 19:25 UTCJun 30, 22:00 UTC2h 35m
2026-06-30 TAY8LL TLL → ARN Jun 30, 17:30 UTCJun 30, 18:10 UTC40m

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?
No active broadcast right now. Last signal was 1d ago.
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 15 distinct callsigns, including TAY2DI, TAY1DI, TAY7LL, TAY8LL, TAY2MN.