Apparatus

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sensors Mode-S transponder

44D145

ICAO 24-bit transponder address · allocated to Belgium

Hex
44D145
Octal
21150505
Decimal
4,510,021
Country
BE
No current signal · last broadcast 1h ago
Flights observed
87
Distinct callsigns
1
Country
BE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 44D145.

Country allocation

The ICAO 24-bit address 44D145 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
OOTJE - 87 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OOTJE - Jul 14, 08:05 UTCJul 14, 08:25 UTC20m
2026-07-13 OOTJE - Jul 13, 15:00 UTCJul 13, 16:15 UTC1h 15m
2026-07-13 OOTJE KJK → KJK Jul 13, 11:30 UTCJul 13, 12:35 UTC1h 5m
2026-07-12 OOTJE - Jul 12, 07:01 UTCJul 12, 07:55 UTC55m
2026-07-09 OOTJE KJK → KJK Jul 9, 14:25 UTCJul 9, 15:25 UTC1h 0m
2026-07-09 OOTJE - Jul 9, 12:05 UTCJul 9, 12:45 UTC40m
2026-07-09 OOTJE - Jul 9, 09:50 UTCJul 9, 10:35 UTC45m
2026-07-09 OOTJE KJK → KJK Jul 9, 08:05 UTCJul 9, 08:25 UTC20m
2026-07-08 OOTJE - Jul 8, 12:00 UTCJul 8, 12:40 UTC40m
2026-07-08 OOTJE KJK → KJK Jul 8, 09:35 UTCJul 8, 10:15 UTC40m
2026-07-08 OOTJE KJK → KJK Jul 8, 07:45 UTCJul 8, 08:15 UTC30m
2026-07-07 OOTJE KJK → KJK Jul 7, 08:20 UTCJul 7, 08:55 UTC35m
2026-07-06 OOTJE - Jul 6, 14:50 UTCJul 6, 15:35 UTC45m
2026-07-06 OOTJE - Jul 6, 13:15 UTCJul 6, 13:55 UTC40m
2026-07-02 OOTJE - Jul 2, 15:55 UTCJul 2, 16:20 UTC25m
2026-07-01 OOTJE - Jul 1, 13:10 UTCJul 1, 13:50 UTC40m
2026-07-01 OOTJE KJK → KJK Jul 1, 10:50 UTCJul 1, 12:15 UTC1h 25m
2026-07-01 OOTJE - Jul 1, 09:20 UTCJul 1, 09:50 UTC30m
2026-06-30 OOTJE - Jun 30, 15:30 UTCJun 30, 16:55 UTC1h 25m
2026-06-30 OOTJE - Jun 30, 07:20 UTCJun 30, 07:50 UTC30m
2026-06-29 OOTJE - Jun 29, 16:50 UTCJun 29, 17:30 UTC40m
2026-06-28 OOTJE - Jun 28, 10:35 UTCJun 28, 11:00 UTC25m
2026-06-27 OOTJE - Jun 27, 15:19 UTCJun 27, 16:04 UTC45m
2026-06-27 OOTJE - Jun 27, 10:00 UTCJun 27, 10:25 UTC25m
2026-06-26 OOTJE - Jun 26, 13:04 UTCJun 26, 13:59 UTC55m
2026-06-25 OOTJE - Jun 25, 11:39 UTCJun 25, 12:30 UTC50m
2026-06-24 OOTJE KJK → KJK Jun 24, 15:09 UTCJun 24, 15:59 UTC50m
2026-06-24 OOTJE KJK → KJK Jun 24, 12:44 UTCJun 24, 13:10 UTC25m
2026-06-24 OOTJE - Jun 24, 08:39 UTCJun 24, 09:29 UTC50m
2026-06-23 OOTJE - Jun 23, 14:10 UTCJun 23, 14:55 UTC45m
2026-06-23 OOTJE - Jun 23, 10:35 UTCJun 23, 11:19 UTC45m
2026-06-22 OOTJE KJK → KJK Jun 22, 13:19 UTCJun 22, 13:59 UTC40m
2026-06-20 OOTJE - Jun 20, 16:05 UTCJun 20, 16:55 UTC50m
2026-06-20 OOTJE KJK → KJK Jun 20, 10:25 UTCJun 20, 11:05 UTC40m
2026-06-20 OOTJE - Jun 20, 08:44 UTCJun 20, 08:59 UTC15m
2026-06-20 OOTJE - Jun 20, 07:54 UTCJun 20, 08:09 UTC15m
2026-06-19 OOTJE - Jun 19, 15:04 UTCJun 19, 16:04 UTC1h 0m
2026-06-17 OOTJE - Jun 17, 18:40 UTCJun 17, 18:56 UTC15m
2026-06-17 OOTJE - Jun 17, 14:40 UTCJun 17, 15:05 UTC25m
2026-06-17 OOTJE KJK → KJK Jun 17, 10:35 UTCJun 17, 11:30 UTC55m
2026-06-17 OOTJE - Jun 17, 07:55 UTCJun 17, 08:15 UTC20m
2026-06-15 OOTJE - Jun 15, 16:49 UTCJun 15, 17:34 UTC45m
2026-06-15 OOTJE - Jun 15, 12:35 UTCJun 15, 13:20 UTC45m
2026-06-15 OOTJE - Jun 15, 08:54 UTCJun 15, 09:49 UTC55m
2026-06-14 OOTJE KJK → KJK Jun 14, 08:55 UTCJun 14, 09:35 UTC40m
2026-06-14 OOTJE - Jun 14, 06:50 UTCJun 14, 07:30 UTC40m
2026-06-13 OOTJE KJK → KJK Jun 13, 07:20 UTCJun 13, 08:10 UTC50m
2026-06-10 OOTJE KJK → KJK Jun 10, 15:00 UTCJun 10, 15:55 UTC55m
2026-06-10 OOTJE - Jun 10, 09:20 UTCJun 10, 09:40 UTC20m
2026-06-09 OOTJE - Jun 9, 08:55 UTCJun 9, 09:45 UTC50m

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 44D145 frequently asked

What is Mode-S code 44D145?
44D145 is an ICAO 24-bit transponder address. Allocated to Belgium.
Where is Mode-S 44D145 registered?
Mode-S code 44D145 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D145 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D145, octal 21150505, decimal 4,510,021.
What flights does 44D145 operate?
Mode-S 44D145 has broadcast 1 distinct callsign, including OOTJE.