Apparatus

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sensors Mode-S transponder

44B8B9

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-NEY · EMBRAER EMB545 Praetor 500

Hex
44B8B9
Octal
21134271
Decimal
4,503,737
Country
BE
Tail
OO-NEY
Type
E545
No current signal · last broadcast 9h ago
Flights observed
82
Distinct callsigns
1
Country
BE
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 44B8B9.

Country allocation

The ICAO 24-bit address 44B8B9 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
OONEY - 82 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 OONEY - Jul 17, 14:50 UTCJul 17, 15:40 UTC50m
2026-07-15 OONEY - Jul 15, 10:35 UTCJul 15, 11:35 UTC1h 0m
2026-07-15 OONEY RTM → LTT Jul 15, 05:55 UTCJul 15, 07:35 UTC1h 40m
2026-07-13 OONEY OPO → RTM Jul 13, 06:35 UTCJul 13, 08:30 UTC1h 55m
2026-07-12 OONEY - Jul 12, 11:55 UTCJul 12, 14:55 UTC3h 0m
2026-07-11 OONEY - Jul 11, 11:00 UTCJul 11, 12:35 UTC1h 35m
2026-07-10 OONEY RTM → TLS Jul 10, 16:25 UTCJul 10, 17:45 UTC1h 20m
2026-07-08 OONEY - Jul 8, 20:15 UTCJul 8, 21:45 UTC1h 30m
2026-07-08 OONEY - Jul 8, 16:20 UTCJul 8, 19:15 UTC2h 55m
2026-07-08 OONEY - Jul 8, 14:05 UTCJul 8, 15:20 UTC1h 15m
2026-07-06 OONEY - Jul 6, 10:45 UTCJul 6, 12:15 UTC1h 30m
2026-07-06 OONEY BRU → TLN Jul 6, 08:25 UTCJul 6, 09:55 UTC1h 30m
2026-07-05 OONEY NCE → BRU Jul 5, 11:50 UTCJul 5, 13:20 UTC1h 30m
2026-07-05 OONEY BQH → NCE Jul 5, 09:20 UTCJul 5, 10:55 UTC1h 35m
2026-07-05 OONEY RTM → BQH Jul 5, 06:40 UTCJul 5, 07:20 UTC40m
2026-07-04 OONEY - Jul 4, 09:45 UTCJul 4, 11:35 UTC1h 50m
2026-07-03 OONEY - Jul 3, 17:05 UTCJul 3, 18:40 UTC1h 35m
2026-07-03 OONEY - Jul 3, 11:30 UTCJul 3, 13:05 UTC1h 35m
2026-07-03 OONEY BRU → LTT Jul 3, 09:30 UTCJul 3, 10:45 UTC1h 15m
2026-06-30 OONEY - Jun 30, 10:15 UTCJun 30, 19:55 UTC9h 40m
2026-06-30 OONEY - Jun 30, 07:55 UTCJun 30, 09:15 UTC1h 20m
2026-06-29 OONEY NCE → LTT Jun 29, 17:30 UTCJun 29, 17:45 UTC15m
2026-06-28 OONEY - Jun 28, 17:50 UTCJun 29, 01:10 UTC7h 20m
2026-06-28 OONEY BRU → LBG Jun 28, 16:09 UTCJun 28, 16:49 UTC40m
2026-06-27 OONEY - Jun 27, 15:24 UTCJun 27, 16:04 UTC40m
2026-06-27 OONEY ARN → LTN Jun 27, 12:45 UTCJun 27, 14:54 UTC2h 10m
2026-06-25 OONEY HAM → ARN Jun 25, 15:24 UTCJun 25, 16:35 UTC1h 10m
2026-06-24 OONEY - Jun 24, 14:04 UTCJun 24, 14:39 UTC35m
2026-06-24 OONEY LIN → DUS Jun 24, 08:04 UTCJun 24, 09:05 UTC1h 0m
2026-06-22 OONEY - Jun 22, 18:09 UTCJun 22, 19:40 UTC1h 30m
2026-06-22 OONEY - Jun 22, 13:39 UTCJun 22, 17:15 UTC3h 35m
2026-06-18 OONEY - Jun 18, 10:50 UTCJun 18, 14:35 UTC3h 45m
2026-06-18 OONEY - Jun 18, 07:15 UTCJun 18, 08:05 UTC50m
2026-06-17 OONEY - Jun 17, 16:15 UTCJun 17, 17:10 UTC55m
2026-06-15 OONEY - Jun 15, 08:40 UTCJun 15, 09:20 UTC40m
2026-06-11 OONEY - Jun 11, 11:25 UTCJun 11, 12:50 UTC1h 25m
2026-06-11 OONEY - Jun 11, 08:40 UTCJun 11, 10:10 UTC1h 30m
2026-06-11 OONEY BRU → LBG Jun 11, 06:30 UTCJun 11, 07:00 UTC30m
2026-06-08 OONEY - Jun 8, 13:30 UTCJun 8, 15:40 UTC2h 10m
2026-06-08 OONEY - Jun 8, 10:45 UTCJun 8, 12:45 UTC2h 0m
2026-06-08 OONEY BRU → LBG Jun 8, 08:55 UTCJun 8, 09:35 UTC40m
2026-06-05 OONEY - Jun 5, 15:10 UTCJun 5, 18:35 UTC3h 25m
2026-06-05 OONEY - Jun 5, 13:20 UTCJun 5, 13:55 UTC35m
2026-05-31 OONEY NCE → BRE May 31, 11:00 UTCMay 31, 12:35 UTC1h 35m
2026-05-31 OONEY - May 31, 08:40 UTCMay 31, 10:05 UTC1h 25m
2026-05-30 OONEY - May 30, 13:00 UTCMay 30, 15:05 UTC2h 5m
2026-05-29 OONEY - May 29, 15:45 UTCMay 29, 16:30 UTC45m
2026-05-29 OONEY - May 29, 12:35 UTCMay 29, 14:25 UTC1h 50m
2026-05-29 OONEY - May 29, 10:40 UTCMay 29, 11:30 UTC50m
2026-05-28 OONEY - May 28, 13:30 UTCMay 28, 14:05 UTC35m

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 OO-NEY page for operator, model, and routing details .

Mode-S 44B8B9 frequently asked

What is Mode-S code 44B8B9?
44B8B9 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-NEY.
Where is Mode-S 44B8B9 registered?
Mode-S code 44B8B9 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44B8B9 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44B8B9, octal 21134271, decimal 4,503,737.
What flights does 44B8B9 operate?
Mode-S 44B8B9 has broadcast 1 distinct callsign, including OONEY.