Apparatus

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sensors Mode-S transponder

44CE86

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-STF · ROBINSON R-44 Raven

Hex
44CE86
Octal
21147206
Decimal
4,509,318
Country
BE
Tail
OO-STF
Type
R44
No current signal · last broadcast 3d ago
Flights observed
89
Distinct callsigns
1
Country
BE
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 44CE86.

Country allocation

The ICAO 24-bit address 44CE86 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
OOSTF - 89 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OOSTF - Jul 14, 19:50 UTCJul 14, 20:05 UTC15m
2026-07-14 OOSTF - Jul 14, 16:05 UTCJul 14, 16:15 UTC10m
2026-07-13 OOSTF - Jul 13, 14:10 UTCJul 13, 15:25 UTC1h 15m
2026-07-12 OOSTF - Jul 12, 10:40 UTCJul 12, 11:01 UTC20m
2026-07-12 OOSTF - Jul 12, 09:30 UTCJul 12, 09:45 UTC15m
2026-07-11 OOSTF - Jul 11, 14:55 UTCJul 11, 15:40 UTC45m
2026-07-11 OOSTF - Jul 11, 12:40 UTCJul 11, 13:10 UTC30m
2026-07-10 OOSTF - Jul 10, 15:50 UTCJul 10, 16:05 UTC15m
2026-07-10 OOSTF - Jul 10, 13:50 UTCJul 10, 14:10 UTC20m
2026-07-10 OOSTF - Jul 10, 12:20 UTCJul 10, 12:40 UTC20m
2026-07-10 OOSTF - Jul 10, 10:20 UTCJul 10, 10:30 UTC10m
2026-07-10 OOSTF - Jul 10, 09:30 UTCJul 10, 09:45 UTC15m
2026-07-10 OOSTF - Jul 10, 08:15 UTCJul 10, 08:35 UTC20m
2026-07-05 OOSTF - Jul 5, 14:55 UTCJul 5, 15:40 UTC45m
2026-07-05 OOSTF - Jul 5, 08:15 UTCJul 5, 09:00 UTC45m
2026-07-04 OOSTF - Jul 4, 17:10 UTCJul 4, 19:00 UTC1h 50m
2026-07-04 OOSTF - Jul 4, 15:25 UTCJul 4, 16:00 UTC35m
2026-07-01 OOSTF - Jul 1, 11:35 UTCJul 1, 11:45 UTC10m
2026-07-01 OOSTF - Jul 1, 09:20 UTCJul 1, 11:00 UTC1h 40m
2026-06-29 OOSTF - Jun 29, 08:09 UTCJun 29, 09:29 UTC1h 20m
2026-06-29 OOSTF - Jun 29, 07:09 UTCJun 29, 07:25 UTC15m
2026-06-28 OOSTF - Jun 28, 09:25 UTCJun 28, 09:50 UTC25m
2026-06-26 OOSTF - Jun 26, 09:30 UTCJun 26, 10:35 UTC1h 5m
2026-06-23 OOSTF - Jun 23, 16:24 UTCJun 23, 18:14 UTC1h 50m
2026-06-23 OOSTF - Jun 23, 10:24 UTCJun 23, 11:04 UTC40m
2026-06-23 OOSTF - Jun 23, 08:39 UTCJun 23, 09:29 UTC50m
2026-06-23 OOSTF - Jun 23, 07:09 UTCJun 23, 07:55 UTC45m
2026-06-22 OOSTF - Jun 22, 11:30 UTCJun 22, 12:19 UTC50m
2026-06-22 OOSTF - Jun 22, 08:54 UTCJun 22, 09:30 UTC35m
2026-06-22 OOSTF - Jun 22, 06:29 UTCJun 22, 07:45 UTC1h 15m
2026-06-20 OOSTF - Jun 20, 12:09 UTCJun 20, 12:30 UTC20m
2026-06-20 OOSTF - Jun 20, 10:49 UTCJun 20, 11:25 UTC35m
2026-06-20 OOSTF - Jun 20, 09:09 UTCJun 20, 09:29 UTC20m
2026-06-20 OOSTF - Jun 20, 05:14 UTCJun 20, 07:19 UTC2h 5m
2026-06-19 OOSTF - Jun 19, 15:44 UTCJun 19, 16:59 UTC1h 15m
2026-06-19 OOSTF - Jun 19, 11:20 UTCJun 19, 11:45 UTC25m
2026-06-19 OOSTF - Jun 19, 05:05 UTCJun 19, 07:45 UTC2h 40m
2026-06-18 OOSTF - Jun 18, 15:10 UTCJun 18, 16:50 UTC1h 40m
2026-06-18 OOSTF - Jun 18, 04:55 UTCJun 18, 07:05 UTC2h 10m
2026-06-17 OOSTF - Jun 17, 18:45 UTCJun 17, 19:10 UTC25m
2026-06-17 OOSTF - Jun 17, 16:10 UTCJun 17, 16:45 UTC35m
2026-06-16 OOSTF - Jun 16, 08:44 UTCJun 16, 12:00 UTC3h 15m
2026-06-15 OOSTF - Jun 15, 11:39 UTCJun 15, 12:49 UTC1h 10m
2026-06-15 OOSTF - Jun 15, 07:40 UTCJun 15, 08:40 UTC1h 0m
2026-06-12 OOSTF - Jun 12, 15:05 UTCJun 12, 16:05 UTC1h 0m
2026-06-12 OOSTF - Jun 12, 09:40 UTCJun 12, 10:15 UTC35m
2026-06-11 OOSTF - Jun 11, 08:35 UTCJun 11, 09:45 UTC1h 10m
2026-06-10 OOSTF - Jun 10, 15:50 UTCJun 10, 16:20 UTC30m
2026-05-18 OOSTF - May 18, 08:05 UTCMay 18, 08:45 UTC40m
2026-05-17 OOSTF - May 17, 13:35 UTCMay 17, 13:55 UTC20m

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-STF page for operator, model, and routing details .

Mode-S 44CE86 frequently asked

What is Mode-S code 44CE86?
44CE86 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-STF.
Where is Mode-S 44CE86 registered?
Mode-S code 44CE86 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CE86 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44CE86, octal 21147206, decimal 4,509,318.
What flights does 44CE86 operate?
Mode-S 44CE86 has broadcast 1 distinct callsign, including OOSTF.