sensors Mode-S transponder

44D1A6

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-TMF · BOEING 737 MAX 8

Hex
44D1A6
Octal
21150646
Decimal
4,510,118
Country
BE
Tail
OO-TMF
Type
B38M
No current signal · last broadcast 12h ago
Flights observed
9
Distinct callsigns
4
Country
BE
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 44D1A6.

Country allocation

The ICAO 24-bit address 44D1A6 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 4 distinct

Callsign Airline Flights Last seen
JAF95N - 3 2026-04-13
JAF8HC Jetairfly 3 2026-04-13
JAF9WL - 2 2026-04-14
JAF59L Jetairfly 1 2026-04-14

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 JAF9WL - Apr 14, 09:10 UTCApr 14, 10:25 UTC1h 15m
2026-04-14 JAF9WL - Apr 14, 08:10 UTCApr 14, 09:05 UTC55m
2026-04-14 JAF59L OST → ALC Apr 14, 05:15 UTCApr 14, 05:50 UTC35m
2026-04-13 JAF8HC BRU → AGA Apr 13, 19:50 UTCApr 13, 21:30 UTC1h 40m
2026-04-13 JAF8HC BRU → AGA Apr 13, 17:30 UTCApr 13, 20:10 UTC2h 40m
2026-04-13 JAF95N - Apr 13, 12:20 UTCApr 13, 15:40 UTC3h 20m
2026-04-13 JAF95N - Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-12 JAF8HC BRU → AGA Apr 12, 19:15 UTCApr 12, 20:15 UTC1h 0m
2026-04-12 JAF95N - Apr 12, 17:15 UTCApr 12, 17:25 UTC10m

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

Mode-S 44D1A6 frequently asked

What is Mode-S code 44D1A6?
44D1A6 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-TMF.
Where is Mode-S 44D1A6 registered?
Mode-S code 44D1A6 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D1A6 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D1A6, octal 21150646, decimal 4,510,118.
What flights does 44D1A6 operate?
Mode-S 44D1A6 has broadcast 4 distinct callsigns, including JAF95N, JAF8HC, JAF9WL, JAF59L.