sensors Mode-S transponder

44D1A2

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-TMB · BOEING 737 MAX 8

Hex
44D1A2
Octal
21150642
Decimal
4,510,114
Country
BE
Tail
OO-TMB
Type
B38M
Transponder active on ground
Flights observed
164
Distinct callsigns
20
Country
BE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 44D1A2.

Country allocation

The ICAO 24-bit address 44D1A2 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
JAF2EV Jetairfly 6 2026-05-03
TFL5PV - 5 2026-05-22
JAF88H Jetairfly 5 2026-05-03
JAF6JG Jetairfly 5 2026-04-16
JAF3EX Jetairfly 4 2026-04-17
JAF1KW Jetairfly 4 2026-04-28
TFL6BH Arkefly 3 2026-05-12
TFL65L Arkefly 3 2026-05-22
JAF97T Jetairfly 3 2026-05-29
JAF91M - 3 2026-04-23
JAF7JV Jetairfly 3 2026-05-28
JAF7DE - 3 2026-04-22
JAF40W - 3 2026-04-17
JAF3NE Jetairfly 3 2026-05-03
TFL9LN Arkefly 2 2026-05-22
TFL9LE Arkefly 2 2026-05-25
TFL9GT Arkefly 2 2026-05-24
TFL98E - 2 2026-05-21
TFL95X - 2 2026-05-07
TFL8WL Arkefly 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JAF92H - May 30, 09:50 UTCMay 30, 12:25 UTC2h 35m
2026-05-30 JAF7VD - May 30, 06:25 UTCMay 30, 08:45 UTC2h 20m
2026-05-29 JAF8WB - May 29, 18:10 UTCMay 29, 20:30 UTC2h 20m
2026-05-29 JAF8WB BRU → GPA May 29, 12:35 UTCMay 29, 15:10 UTC2h 35m
2026-05-29 JAF97T BRU → SPU May 29, 08:20 UTCMay 29, 10:20 UTC2h 0m
2026-05-29 JAF97T BRU → SPU May 29, 07:05 UTCMay 29, 07:20 UTC15m
2026-05-29 JAF97T BRU → SPU May 29, 04:25 UTCMay 29, 05:55 UTC1h 30m
2026-05-28 JAF7JV BRU → MAH May 28, 18:20 UTCMay 28, 20:15 UTC1h 55m
2026-05-28 JAF7JV BRU → MAH May 28, 16:20 UTCMay 28, 16:35 UTC15m
2026-05-28 JAF7JV BRU → MAH May 28, 13:30 UTCMay 28, 15:15 UTC1h 45m
2026-05-28 JAF5KH KGS → BRU May 28, 08:40 UTCMay 28, 12:00 UTC3h 20m
2026-05-28 JAF62J BRU → KGS May 28, 04:30 UTCMay 28, 07:25 UTC2h 55m
2026-05-27 JAF55M BRU → BRU May 27, 13:05 UTCMay 27, 23:10 UTC10h 5m
2026-05-27 JAF6YV OUD → BRU May 27, 08:15 UTCMay 27, 10:50 UTC2h 35m
2026-05-27 JAF2PK - May 27, 04:45 UTCMay 27, 07:10 UTC2h 25m
2026-05-26 JAF2XD CMN → LIL May 26, 05:59 UTCMay 26, 16:35 UTC10h 35m
2026-05-25 JAF3BW - May 25, 21:54 UTCMay 26, 00:24 UTC2h 30m
2026-05-25 JAF87A - May 25, 18:00 UTCMay 25, 20:40 UTC2h 40m
2026-05-25 JAF66H LPA → BRU May 25, 10:30 UTCMay 25, 14:15 UTC3h 45m
2026-05-25 TFL9LE AMS → LPA May 25, 04:20 UTCMay 25, 08:15 UTC3h 55m
2026-05-24 TFL13K DLM → AMS May 24, 18:40 UTCMay 24, 21:45 UTC3h 5m
2026-05-24 TFL9GT AMS → DLM May 24, 13:55 UTCMay 24, 17:05 UTC3h 10m
2026-05-24 TFL4KA TFS → EIN May 24, 08:50 UTCMay 24, 12:15 UTC3h 25m
2026-05-24 TFL32N AMS → AOK May 24, 04:00 UTCMay 24, 07:10 UTC3h 10m
2026-05-23 TFL1BT AMS → AMS May 23, 10:55 UTCMay 23, 22:15 UTC11h 21m
2026-05-22 TFL65L LPA → AMS May 22, 21:20 UTCMay 23, 01:00 UTC3h 40m
2026-05-22 TFL5PV - May 22, 15:10 UTCMay 22, 19:20 UTC4h 10m
2026-05-22 TFL5PV AMS → GRQ May 22, 13:35 UTCMay 22, 13:55 UTC20m
2026-05-22 TFL8WL BDS → AMS May 22, 09:20 UTCMay 22, 11:45 UTC2h 25m
2026-05-22 TFL9LN AMS → BDS May 22, 05:55 UTCMay 22, 08:05 UTC2h 10m
2026-05-21 TFL70G - May 21, 16:05 UTCMay 21, 19:40 UTC3h 35m
2026-05-21 TFL98E - May 21, 10:40 UTCMay 21, 14:45 UTC4h 5m
2026-05-20 TFL1BT - May 20, 11:15 UTCMay 20, 22:35 UTC11h 20m
2026-05-19 TFL70V AMS → LPA May 19, 13:15 UTCMay 19, 22:55 UTC9h 40m
2026-05-19 TFL7XC TIA → AMS May 19, 09:00 UTCMay 19, 11:15 UTC2h 15m
2026-05-19 TFL8WM AMS → TIA May 19, 05:30 UTCMay 19, 07:30 UTC2h 0m
2026-05-18 TFL4YE AMS → PDL May 18, 16:35 UTCMay 18, 20:40 UTC4h 4m
2026-05-18 TFL4YE AMS → PDL May 18, 05:45 UTCMay 18, 09:40 UTC3h 55m
2026-05-17 TFL13K DLM → AMS May 17, 18:45 UTCMay 17, 22:20 UTC3h 35m
2026-05-17 TFL9GT AMS → DLM May 17, 13:55 UTCMay 17, 17:01 UTC3h 5m
2026-05-17 TFL4KA TFS → EIN May 17, 08:35 UTCMay 17, 12:01 UTC3h 25m
2026-05-17 TFL32N AMS → AOK May 17, 03:55 UTCMay 17, 06:50 UTC2h 55m
2026-05-16 TFL3GA - May 16, 21:10 UTCMay 17, 00:50 UTC3h 40m
2026-05-16 TFL1DH AMS → AYT May 16, 16:40 UTCMay 16, 19:55 UTC3h 15m
2026-05-16 TFL7XG AYT → AMS May 16, 10:20 UTCMay 16, 13:41 UTC3h 20m
2026-05-16 TFL7MV AMS → KGS May 16, 05:20 UTCMay 16, 08:16 UTC2h 56m
2026-05-15 TFL65L LPA → AMS May 15, 20:20 UTCMay 16, 00:20 UTC4h 0m
2026-05-15 TFL5PV - May 15, 14:35 UTCMay 15, 18:20 UTC3h 44m
2026-05-15 TFL5PV - May 15, 12:50 UTCMay 15, 13:10 UTC20m
2026-05-15 TFL8WL BDS → AMS May 15, 09:10 UTCMay 15, 11:30 UTC2h 20m

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

Mode-S 44D1A2 frequently asked

What is Mode-S code 44D1A2?
44D1A2 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-TMB.
Where is Mode-S 44D1A2 registered?
Mode-S code 44D1A2 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D1A2 broadcasting right now?
Mode-S 44D1A2 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D1A2, octal 21150642, decimal 4,510,114.
What flights does 44D1A2 operate?
Mode-S 44D1A2 has broadcast 20 distinct callsigns, including JAF2EV, TFL5PV, JAF88H, JAF6JG, JAF3EX.