Apparatus

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sensors Mode-S transponder

44D2B6

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-TUV · BOEING 737-800

Hex
44D2B6
Octal
21151266
Decimal
4,510,390
Country
BE
Tail
OO-TUV
Type
B738
No current signal · last broadcast Jul 26, 19:55 UTC
Flights observed
319
Distinct callsigns
20
Country
BE
Last broadcast
Jul 26, 19:55 UTC

Last known position

Most recent position reported by Mode-S 44D2B6.

Country allocation

The ICAO 24-bit address 44D2B6 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
TFL69C - 7 2026-05-25
JAF3VE - 7 2026-07-22
JAF35D - 7 2026-07-20
JAF1YV Jetairfly 7 2026-07-22
TFL27K - 6 2026-05-25
TFL15D - 6 2026-05-30
JAF9XK - 6 2026-07-26
JAF7JV - 6 2026-06-28
JAF66H Jetairfly 6 2026-07-20
JAF4JK - 6 2026-07-21
TFL7BN - 5 2026-05-31
TFL70K - 5 2026-05-31
JAF9FB - 5 2026-06-26
JAF88H Jetairfly 5 2026-07-22
JAF83B Jetairfly 5 2026-04-17
JAF7AK - 5 2026-07-26
JAF6LD - 5 2026-06-26
JAF68V - 5 2026-06-29
JAF63N - 5 2026-06-29
JAF54D - 5 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAF7AK - Jul 26, 16:50 UTCJul 26, 19:50 UTC3h 0m
2026-07-26 JAF9XK - Jul 26, 12:10 UTCJul 26, 15:10 UTC3h 0m
2026-07-26 JAF7PN - Jul 26, 08:15 UTCJul 26, 10:40 UTC2h 25m
2026-07-26 JAF2YX - Jul 26, 04:50 UTCJul 26, 06:55 UTC2h 6m
2026-07-25 JAF11G RHO → BRU Jul 25, 16:35 UTCJul 25, 20:05 UTC3h 30m
2026-07-25 JAF4AB BRU → RHO Jul 25, 12:10 UTCJul 25, 15:10 UTC3h 0m
2026-07-25 JAF99Y FAO → BRU Jul 25, 08:20 UTCJul 25, 10:45 UTC2h 25m
2026-07-25 JAF28Y - Jul 25, 04:25 UTCJul 25, 06:55 UTC2h 30m
2026-07-24 JAF5PC PRN → BRU Jul 24, 17:15 UTCJul 24, 19:35 UTC2h 20m
2026-07-24 JAF6NT BRU → PRN Jul 24, 13:50 UTCJul 24, 15:35 UTC1h 45m
2026-07-24 JAF9XK - Jul 24, 04:35 UTCJul 24, 12:00 UTC7h 25m
2026-07-23 JAF1PB AHU → BRU Jul 23, 17:15 UTCJul 23, 19:50 UTC2h 35m
2026-07-23 JAF42D BRU → AHU Jul 23, 13:45 UTCJul 23, 16:15 UTC2h 30m
2026-07-23 JAF29J CHQ → BRU Jul 23, 08:50 UTCJul 23, 12:10 UTC3h 20m
2026-07-23 JAF14K BRU → CHQ Jul 23, 04:20 UTCJul 23, 07:10 UTC2h 50m
2026-07-22 JAF1YV HER → BRU Jul 22, 16:20 UTCJul 22, 19:40 UTC3h 20m
2026-07-22 JAF3VE - Jul 22, 12:10 UTCJul 22, 14:55 UTC2h 45m
2026-07-22 JAF88H BRU → AGP Jul 22, 04:15 UTCJul 22, 05:25 UTC1h 10m
2026-07-21 JAF4JK - Jul 21, 17:40 UTCJul 21, 20:05 UTC2h 25m
2026-07-21 JAF4JK - Jul 21, 15:50 UTCJul 21, 16:25 UTC35m
2026-07-21 JAF4JK BRU → LEI Jul 21, 12:40 UTCJul 21, 14:55 UTC2h 15m
2026-07-21 JAF3LV - Jul 21, 08:20 UTCJul 21, 10:50 UTC2h 30m
2026-07-21 JAF61W - Jul 21, 04:10 UTCJul 21, 06:30 UTC2h 20m
2026-07-20 JAF66H LPA → BRU Jul 20, 18:15 UTCJul 20, 20:55 UTC2h 40m
2026-07-20 JAF66H LPA → BRU Jul 20, 17:20 UTCJul 20, 18:10 UTC50m
2026-07-20 JAF35D - Jul 20, 15:20 UTCJul 20, 15:40 UTC20m
2026-07-20 JAF35D - Jul 20, 11:45 UTCJul 20, 14:45 UTC3h 0m
2026-07-19 JAF1YV - Jul 19, 18:05 UTCJul 19, 21:15 UTC3h 10m
2026-07-19 JAF3VE - Jul 19, 13:50 UTCJul 19, 16:45 UTC2h 55m
2026-07-19 JAF2WA JTR → BRU Jul 19, 08:40 UTCJul 19, 11:50 UTC3h 10m
2026-07-19 JAF63G BRU → JTR Jul 19, 04:25 UTCJul 19, 07:10 UTC2h 45m
2026-07-18 JAF11G RHO → BRU Jul 18, 16:50 UTCJul 18, 20:20 UTC3h 30m
2026-07-18 JAF4AB BRU → RHO Jul 18, 12:20 UTCJul 18, 15:35 UTC3h 15m
2026-07-18 JAF99Y FAO → BRU Jul 18, 08:25 UTCJul 18, 10:45 UTC2h 20m
2026-07-18 JAF28Y - Jul 18, 04:45 UTCJul 18, 07:20 UTC2h 35m
2026-07-17 JAF6YV - Jul 17, 18:55 UTCJul 17, 21:25 UTC2h 30m
2026-07-17 JAF2PK - Jul 17, 15:00 UTCJul 17, 17:40 UTC2h 40m
2026-07-17 JAF7AK - Jul 17, 09:40 UTCJul 17, 12:40 UTC3h 0m
2026-07-17 JAF9XK - Jul 17, 04:54 UTCJul 17, 07:55 UTC3h 0m
2026-07-16 JAF1PB - Jul 16, 18:15 UTCJul 16, 20:39 UTC2h 25m
2026-07-16 JAF42D - Jul 16, 14:00 UTCJul 16, 16:40 UTC2h 40m
2026-07-16 JAF29J - Jul 16, 08:40 UTCJul 16, 12:05 UTC3h 25m
2026-07-16 JAF14K - Jul 16, 04:30 UTCJul 16, 07:25 UTC2h 55m
2026-07-15 JAF1PB - Jul 15, 19:40 UTCJul 15, 22:10 UTC2h 30m
2026-07-15 JAF42D - Jul 15, 15:55 UTCJul 15, 18:40 UTC2h 45m
2026-07-15 JAF8EC - Jul 15, 09:10 UTCJul 15, 12:30 UTC3h 20m
2026-07-15 JAF8WY - Jul 15, 04:50 UTCJul 15, 07:35 UTC2h 45m
2026-07-14 JAF1DE - Jul 14, 17:25 UTCJul 15, 01:35 UTC8h 9m
2026-07-14 JAF12M - Jul 14, 10:30 UTCJul 14, 13:50 UTC3h 20m
2026-07-14 JAF7HW - Jul 14, 04:15 UTCJul 14, 08:35 UTC4h 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-TUV page for operator, model, and routing details .

Mode-S 44D2B6 frequently asked

What is Mode-S code 44D2B6?
44D2B6 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-TUV.
Where is Mode-S 44D2B6 registered?
Mode-S code 44D2B6 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D2B6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D2B6, octal 21151266, decimal 4,510,390.
What flights does 44D2B6 operate?
Mode-S 44D2B6 has broadcast 20 distinct callsigns, including TFL69C, JAF3VE, JAF35D, JAF1YV, TFL27K.