Apparatus

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sensors Mode-S transponder

44D1A1

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-TMA · BOEING 737 MAX 8

Hex
44D1A1
Octal
21150641
Decimal
4,510,113
Country
BE
Tail
OO-TMA
Type
B38M
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
350
Distinct callsigns
20
Country
BE
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 44D1A1.

Country allocation

The ICAO 24-bit address 44D1A1 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 20 distinct

Callsign Airline Flights Last seen
JAF66L - 15 2026-07-14
JAF3HX - 15 2026-07-14
JAF88H Jetairfly 11 2026-07-20
JAF62J Jetairfly 11 2026-07-26
JAF5KH Jetairfly 11 2026-07-26
JAF40W - 11 2026-07-06
JAF3NE Jetairfly 11 2026-07-20
JAF1KW Jetairfly 11 2026-06-09
JAF7JV Jetairfly 9 2026-07-23
JAF55M - 9 2026-06-24
JAF3EX - 9 2026-07-06
JAF61K - 7 2026-07-20
JAF5HJ - 7 2026-07-20
JAF3VE Jetairfly 7 2026-07-25
JAF9LD - 6 2026-07-10
JAF7HW Jetairfly 6 2026-07-21
JAF3FD - 6 2026-07-10
JAF35D Jetairfly 6 2026-07-24
JAF2XD - 6 2026-07-18
JAF12M - 6 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAF5KH KGS → BRU Jul 26, 18:50 UTCJul 26, 22:15 UTC3h 25m
2026-07-26 TFL7MV AMS → KGS Jul 26, 13:50 UTCJul 26, 16:50 UTC3h 0m
2026-07-26 TFL7XG AYT → AMS Jul 26, 08:50 UTCJul 26, 12:20 UTC3h 30m
2026-07-26 JAF62J BRU → KGS Jul 26, 04:40 UTCJul 26, 07:25 UTC2h 46m
2026-07-25 JAF1YV HER → BRU Jul 25, 20:05 UTCJul 25, 23:20 UTC3h 15m
2026-07-25 TFL48J AMS → HER Jul 25, 15:45 UTCJul 25, 18:35 UTC2h 50m
2026-07-25 TFL79A HER → AMS Jul 25, 08:55 UTCJul 25, 12:25 UTC3h 30m
2026-07-25 JAF3VE BRU → HER Jul 25, 04:40 UTCJul 25, 07:20 UTC2h 40m
2026-07-24 JAF66H LPA → BRU Jul 24, 16:55 UTCJul 24, 20:15 UTC3h 20m
2026-07-24 JAF35D BRU → LPA Jul 24, 11:10 UTCJul 24, 15:00 UTC3h 50m
2026-07-24 JAF63N LPA → OST Jul 24, 07:40 UTCJul 24, 09:35 UTC1h 55m
2026-07-24 JAF68V - Jul 24, 04:35 UTCJul 24, 06:25 UTC1h 50m
2026-07-23 JAF7JV BRU → MAH Jul 23, 18:55 UTCJul 23, 20:50 UTC1h 55m
2026-07-23 JAF7JV BRU → MAH Jul 23, 16:50 UTCJul 23, 17:10 UTC20m
2026-07-23 JAF7JV BRU → MAH Jul 23, 14:00 UTCJul 23, 15:45 UTC1h 45m
2026-07-23 JAF5PC PRN → BRU Jul 23, 09:35 UTCJul 23, 11:50 UTC2h 15m
2026-07-23 JAF6NT BRU → PRN Jul 23, 05:55 UTCJul 23, 07:45 UTC1h 50m
2026-07-22 JAF3WG CMN → BRU Jul 22, 18:20 UTCJul 22, 21:20 UTC3h 0m
2026-07-22 JAF2LG BRU → CMN Jul 22, 14:10 UTCJul 22, 17:10 UTC3h 0m
2026-07-22 JAF1DY BRU → BRU Jul 22, 04:30 UTCJul 22, 12:25 UTC7h 55m
2026-07-21 JAF2536 CMN → BRU Jul 21, 19:35 UTCJul 21, 22:30 UTC2h 55m
2026-07-21 JAF2535 BRU → CMN Jul 21, 15:15 UTCJul 21, 18:15 UTC3h 0m
2026-07-21 JAF12M - Jul 21, 10:00 UTCJul 21, 13:40 UTC3h 40m
2026-07-21 JAF7HW BRU → TFS Jul 21, 04:15 UTCJul 21, 08:10 UTC3h 55m
2026-07-20 JAF61K - Jul 20, 18:40 UTCJul 20, 22:20 UTC3h 40m
2026-07-20 JAF5HJ - Jul 20, 13:05 UTCJul 20, 17:10 UTC4h 5m
2026-07-20 JAF3NE AGP → BRU Jul 20, 08:20 UTCJul 20, 10:40 UTC2h 20m
2026-07-20 JAF88H BRU → AGP Jul 20, 04:20 UTCJul 20, 06:55 UTC2h 35m
2026-07-19 JAF9FB - Jul 19, 17:10 UTCJul 19, 19:05 UTC1h 55m
2026-07-19 JAF6LD OST → ALC Jul 19, 13:50 UTCJul 19, 15:55 UTC2h 5m
2026-07-19 JAF3LV - Jul 19, 08:40 UTCJul 19, 11:10 UTC2h 30m
2026-07-19 JAF61W - Jul 19, 04:40 UTCJul 19, 07:00 UTC2h 20m
2026-07-18 JAF2XD - Jul 18, 11:50 UTCJul 18, 22:55 UTC11h 5m
2026-07-17 JAF4PT - Jul 17, 20:04 UTCJul 17, 23:20 UTC3h 15m
2026-07-17 JAF4NW - Jul 17, 16:15 UTCJul 17, 19:00 UTC2h 45m
2026-07-17 JAF12M - Jul 17, 10:40 UTCJul 17, 14:15 UTC3h 35m
2026-07-17 JAF7HW - Jul 17, 04:29 UTCJul 17, 08:35 UTC4h 5m
2026-07-16 JAF7JV - Jul 16, 18:25 UTCJul 16, 20:19 UTC1h 55m
2026-07-16 JAF7JV - Jul 16, 16:44 UTCJul 16, 17:10 UTC25m
2026-07-16 JAF7JV BRU → MAH Jul 16, 13:54 UTCJul 16, 15:49 UTC1h 55m
2026-07-16 JAF1DY NBE → BRU Jul 16, 09:45 UTCJul 16, 12:14 UTC2h 30m
2026-07-16 JAF1DY - Jul 16, 08:05 UTCJul 16, 08:30 UTC25m
2026-07-16 JAF1DY BRU → DJE Jul 16, 04:25 UTCJul 16, 07:00 UTC2h 35m
2026-07-15 JAF38Y - Jul 15, 17:45 UTCJul 15, 20:15 UTC2h 30m
2026-07-15 JAF1BH - Jul 15, 12:20 UTCJul 15, 15:50 UTC3h 30m
2026-07-15 JAF5PC - Jul 15, 08:20 UTCJul 15, 10:40 UTC2h 20m
2026-07-15 JAF6NT - Jul 15, 05:00 UTCJul 15, 06:55 UTC1h 55m
2026-07-14 JAF45T - Jul 14, 21:40 UTCJul 15, 00:00 UTC2h 19m
2026-07-14 JAF8JW - Jul 14, 17:50 UTCJul 14, 20:45 UTC2h 55m
2026-07-14 JAF66L ALC → BRU Jul 14, 14:35 UTCJul 14, 16:35 UTC2h 0m

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

Mode-S 44D1A1 frequently asked

What is Mode-S code 44D1A1?
44D1A1 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-TMA.
Where is Mode-S 44D1A1 registered?
Mode-S code 44D1A1 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D1A1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D1A1, octal 21150641, decimal 4,510,113.
What flights does 44D1A1 operate?
Mode-S 44D1A1 has broadcast 20 distinct callsigns, including JAF66L, JAF3HX, JAF88H, JAF62J, JAF5KH.