Apparatus

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sensors Mode-S transponder

44B9E5

ICAO 24-bit transponder address · allocated to Belgium

Hex
44B9E5
Octal
21134745
Decimal
4,504,037
Country
BE
No current signal · last broadcast Jul 25, 08:30 UTC
Flights observed
64
Distinct callsigns
1
Country
BE
Last broadcast
Jul 25, 08:30 UTC

Last known position

Most recent position reported by Mode-S 44B9E5.

Country allocation

The ICAO 24-bit address 44B9E5 falls within the block assigned to Belgium (BE) by ICAO Annex 10, Volume III. Every aircraft registered in Belgium 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 1 distinct

Callsign Airline Flights Last seen
OONOE - 64 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 OONOE ANR → ANR Jul 25, 07:20 UTCJul 25, 08:25 UTC1h 5m
2026-07-24 OONOE ANR → ANR Jul 24, 07:30 UTCJul 24, 08:25 UTC55m
2026-07-22 OONOE ANR → ANR Jul 22, 14:45 UTCJul 22, 15:15 UTC30m
2026-07-22 OONOE ANR → ANR Jul 22, 14:15 UTCJul 22, 14:30 UTC15m
2026-07-19 OONOE - Jul 19, 17:00 UTCJul 19, 17:45 UTC45m
2026-07-19 OONOE - Jul 19, 07:10 UTCJul 19, 07:55 UTC45m
2026-07-18 OONOE - Jul 18, 08:45 UTCJul 18, 09:10 UTC25m
2026-07-18 OONOE ANR → ANR Jul 18, 08:05 UTCJul 18, 08:20 UTC15m
2026-07-17 OONOE ANR → ANR Jul 17, 15:25 UTCJul 17, 16:24 UTC1h 0m
2026-07-17 OONOE ANR → ANR Jul 17, 09:15 UTCJul 17, 10:00 UTC45m
2026-07-16 OONOE ANR → ANR Jul 16, 09:55 UTCJul 16, 11:10 UTC1h 15m
2026-07-16 OONOE ANR → ANR Jul 16, 07:30 UTCJul 16, 08:35 UTC1h 5m
2026-07-15 OONOE - Jul 15, 17:50 UTCJul 15, 18:10 UTC20m
2026-07-15 OONOE - Jul 15, 15:50 UTCJul 15, 16:20 UTC30m
2026-07-15 OONOE ANR → ANR Jul 15, 11:10 UTCJul 15, 12:20 UTC1h 10m
2026-07-15 OONOE - Jul 15, 08:25 UTCJul 15, 08:50 UTC25m
2026-07-15 OONOE - Jul 15, 06:40 UTCJul 15, 07:50 UTC1h 10m
2026-07-14 OONOE ANR → ANR Jul 14, 16:45 UTCJul 14, 17:45 UTC1h 0m
2026-07-14 OONOE ANR → ANR Jul 14, 14:30 UTCJul 14, 15:40 UTC1h 10m
2026-07-14 OONOE ANR → ANR Jul 14, 11:55 UTCJul 14, 12:35 UTC40m
2026-07-13 OONOE ANR → ANR Jul 13, 10:05 UTCJul 13, 11:15 UTC1h 10m
2026-07-13 OONOE ANR → ANR Jul 13, 07:05 UTCJul 13, 08:05 UTC1h 0m
2026-07-12 OONOE ANR → ANR Jul 12, 10:15 UTCJul 12, 11:50 UTC1h 35m
2026-07-11 OONOE ANR → ANR Jul 11, 13:15 UTCJul 11, 14:30 UTC1h 15m
2026-07-09 OONOE ANR → ANR Jul 9, 15:45 UTCJul 9, 16:50 UTC1h 5m
2026-07-09 OONOE ANR → ANR Jul 9, 08:05 UTCJul 9, 09:20 UTC1h 15m
2026-07-08 OONOE ANR → ANR Jul 8, 14:40 UTCJul 8, 15:35 UTC55m
2026-07-08 OONOE ANR → ANR Jul 8, 11:45 UTCJul 8, 12:45 UTC1h 0m
2026-07-08 OONOE ANR → ANR Jul 8, 09:50 UTCJul 8, 10:55 UTC1h 5m
2026-07-07 OONOE - Jul 7, 11:10 UTCJul 7, 12:45 UTC1h 35m
2026-07-07 OONOE - Jul 7, 08:20 UTCJul 7, 09:20 UTC1h 0m
2026-07-06 OONOE ANR → ANR Jul 6, 17:25 UTCJul 6, 18:10 UTC45m
2026-07-06 OONOE ANR → ANR Jul 6, 14:30 UTCJul 6, 15:40 UTC1h 10m
2026-07-04 OONOE ANR → ANR Jul 4, 14:10 UTCJul 4, 15:20 UTC1h 10m
2026-07-04 OONOE ANR → ANR Jul 4, 11:10 UTCJul 4, 12:55 UTC1h 45m
2026-07-04 OONOE ANR → ANR Jul 4, 07:30 UTCJul 4, 08:15 UTC45m
2026-07-03 OONOE ANR → ANR Jul 3, 14:35 UTCJul 3, 15:45 UTC1h 10m
2026-07-03 OONOE ANR → ANR Jul 3, 11:50 UTCJul 3, 13:05 UTC1h 15m
2026-07-03 OONOE ANR → ANR Jul 3, 08:45 UTCJul 3, 10:05 UTC1h 20m
2026-07-03 OONOE ANR → ANR Jul 3, 06:55 UTCJul 3, 07:55 UTC1h 0m
2026-07-02 OONOE ANR → ANR Jul 2, 16:30 UTCJul 2, 17:30 UTC1h 0m
2026-07-02 OONOE ANR → ANR Jul 2, 14:20 UTCJul 2, 15:15 UTC55m
2026-07-02 OONOE ANR → ANR Jul 2, 09:25 UTCJul 2, 10:25 UTC1h 0m
2026-07-02 OONOE ANR → ANR Jul 2, 07:40 UTCJul 2, 08:30 UTC50m
2026-07-01 OONOE ANR → ANR Jul 1, 11:50 UTCJul 1, 12:55 UTC1h 5m
2026-07-01 OONOE ANR → ANR Jul 1, 09:55 UTCJul 1, 10:20 UTC25m
2026-07-01 OONOE ANR → ANR Jul 1, 07:20 UTCJul 1, 08:05 UTC45m
2026-06-30 OONOE ANR → ANR Jun 30, 18:20 UTCJun 30, 19:50 UTC1h 30m
2026-06-30 OONOE ANR → ANR Jun 30, 16:40 UTCJun 30, 17:25 UTC45m
2026-06-30 OONOE ANR → ANR Jun 30, 12:50 UTCJun 30, 13:20 UTC30m

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.

Mode-S 44B9E5 frequently asked

What is Mode-S code 44B9E5?
44B9E5 is an ICAO 24-bit transponder address. Allocated to Belgium.
Where is Mode-S 44B9E5 registered?
Mode-S code 44B9E5 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44B9E5 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 08:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44B9E5, octal 21134745, decimal 4,504,037.
What flights does 44B9E5 operate?
Mode-S 44B9E5 has broadcast 1 distinct callsign, including OONOE.