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sensors Mode-S transponder

44D2AA

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-TUJ · BOEING 737-800

Hex
44D2AA
Octal
21151252
Decimal
4,510,378
Country
BE
Tail
OO-TUJ
Type
B738
Broadcasting now · callsign JAF7PN · 18,525 ft
Flights observed
357
Distinct callsigns
20
Country
BE
Last broadcast
Jul 26, 20:30 UTC

Current position

44D2AA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 44D2AA 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
JAF5JB - 15 2026-07-26
JAF43J - 14 2026-07-23
JAF6AD Jetairfly 10 2026-07-26
TFL69C - 9 2026-07-15
TFL27K - 9 2026-07-22
TFL15D - 9 2026-07-25
JAF4YA Jetairfly 9 2026-07-25
JAF3FD - 9 2026-05-25
TFL6CK Arkefly 8 2026-07-18
TFL6CH - 8 2026-07-23
TFL40T - 8 2026-07-23
JAF9LD Jetairfly 8 2026-05-25
TFL9ED - 7 2026-07-21
TFL61C - 7 2026-07-20
TFL4KV - 7 2026-07-20
TFL1XC - 7 2026-07-21
JAF4AB Jetairfly 7 2026-05-26
JAF2LG Jetairfly 7 2026-05-13
JAF11G Jetairfly 7 2026-05-26
TFL7BN - 6 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JAF5JB - Jul 26, 18:00 UTCJul 26, 20:30 UTC2h 30m
2026-07-26 TFL7BN - Jul 26, 13:10 UTCJul 26, 16:35 UTC3h 25m
2026-07-26 TFL70K - Jul 26, 08:50 UTCJul 26, 11:40 UTC2h 50m
2026-07-26 JAF6AD NDR → EIN Jul 26, 04:30 UTCJul 26, 07:10 UTC2h 41m
2026-07-25 JAF4YA EIN → NDR Jul 25, 18:10 UTCJul 25, 20:40 UTC2h 30m
2026-07-25 TFL15D - Jul 25, 06:30 UTCJul 25, 15:55 UTC9h 25m
2026-07-24 TFL2CM - Jul 24, 07:10 UTCJul 24, 18:05 UTC10h 55m
2026-07-23 TFL6CH - Jul 23, 15:30 UTCJul 23, 18:45 UTC3h 15m
2026-07-23 TFL40T - Jul 23, 11:15 UTCJul 23, 14:10 UTC2h 55m
2026-07-23 JAF43J - Jul 23, 06:40 UTCJul 23, 09:25 UTC2h 45m
2026-07-22 JAF5JB - Jul 22, 17:40 UTCJul 22, 20:20 UTC2h 40m
2026-07-22 TFL27K - Jul 22, 10:20 UTCJul 22, 15:55 UTC5h 35m
2026-07-21 TFL1XC - Jul 21, 15:50 UTCJul 21, 19:30 UTC3h 40m
2026-07-21 TFL9ED - Jul 21, 11:10 UTCJul 21, 14:20 UTC3h 10m
2026-07-21 JAF1NL AHU → EIN Jul 21, 06:40 UTCJul 21, 09:25 UTC2h 45m
2026-07-20 JAF52C - Jul 20, 19:05 UTCJul 20, 21:50 UTC2h 45m
2026-07-20 TFL4KV RHO → EIN Jul 20, 14:05 UTCJul 20, 17:35 UTC3h 30m
2026-07-20 TFL61C - Jul 20, 09:35 UTCJul 20, 12:40 UTC3h 5m
2026-07-20 JAF43J - Jul 20, 04:45 UTCJul 20, 07:25 UTC2h 40m
2026-07-19 JAF5JB - Jul 19, 18:00 UTCJul 19, 20:45 UTC2h 45m
2026-07-19 TFL7BN - Jul 19, 13:20 UTCJul 19, 16:40 UTC3h 20m
2026-07-19 TFL70K - Jul 19, 09:05 UTCJul 19, 11:50 UTC2h 45m
2026-07-19 JAF6AD NDR → EIN Jul 19, 04:15 UTCJul 19, 06:50 UTC2h 35m
2026-07-18 JAF4YA EIN → NDR Jul 18, 18:00 UTCJul 18, 20:40 UTC2h 40m
2026-07-18 TFL6CK RTM → AYT Jul 18, 12:10 UTCJul 18, 15:55 UTC3h 45m
2026-07-18 TFL15D - Jul 18, 06:35 UTCJul 18, 10:35 UTC4h 0m
2026-07-17 TFL2CM - Jul 17, 07:05 UTCJul 17, 17:55 UTC10h 50m
2026-07-16 TFL6CH KGS → EIN Jul 16, 15:30 UTCJul 16, 18:55 UTC3h 25m
2026-07-16 TFL40T - Jul 16, 11:25 UTCJul 16, 14:20 UTC2h 55m
2026-07-16 JAF43J - Jul 16, 06:40 UTCJul 16, 09:15 UTC2h 35m
2026-07-15 JAF5JB - Jul 15, 18:10 UTCJul 15, 20:50 UTC2h 40m
2026-07-15 TFL27K - Jul 15, 12:40 UTCJul 15, 16:30 UTC3h 50m
2026-07-15 TFL69C - Jul 15, 06:40 UTCJul 15, 11:00 UTC4h 20m
2026-07-14 JAF1NL AHU → EIN Jul 14, 06:50 UTCJul 14, 09:25 UTC2h 35m
2026-07-13 JAF52C - Jul 13, 19:25 UTCJul 13, 22:15 UTC2h 50m
2026-07-13 TFL4KV RHO → EIN Jul 13, 14:10 UTCJul 13, 17:45 UTC3h 35m
2026-07-13 TFL61C - Jul 13, 09:15 UTCJul 13, 12:30 UTC3h 15m
2026-07-13 JAF43J - Jul 13, 04:35 UTCJul 13, 07:15 UTC2h 40m
2026-07-12 JAF5JB - Jul 12, 17:50 UTCJul 12, 20:35 UTC2h 45m
2026-07-12 TFL7BN - Jul 12, 12:55 UTCJul 12, 16:15 UTC3h 20m
2026-07-12 TFL70K - Jul 12, 08:40 UTCJul 12, 11:35 UTC2h 55m
2026-07-12 JAF6AD - Jul 12, 04:20 UTCJul 12, 07:05 UTC2h 45m
2026-07-11 JAF4YA - Jul 11, 18:30 UTCJul 11, 21:05 UTC2h 35m
2026-07-11 TFL6CK RTM → AYT Jul 11, 12:20 UTCJul 11, 15:55 UTC3h 35m
2026-07-11 TFL15D - Jul 11, 06:35 UTCJul 11, 10:30 UTC3h 55m
2026-07-10 TFL2CM - Jul 10, 07:05 UTCJul 10, 17:20 UTC10h 15m
2026-07-09 TFL6CH - Jul 9, 15:25 UTCJul 9, 18:50 UTC3h 25m
2026-07-09 TFL40T - Jul 9, 11:05 UTCJul 9, 14:00 UTC2h 55m
2026-07-09 JAF43J - Jul 9, 06:45 UTCJul 9, 09:25 UTC2h 40m
2026-07-08 JAF5JB - Jul 8, 18:00 UTCJul 8, 20:40 UTC2h 40m

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

Mode-S 44D2AA frequently asked

What is Mode-S code 44D2AA?
44D2AA is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-TUJ.
Where is Mode-S 44D2AA registered?
Mode-S code 44D2AA is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D2AA broadcasting right now?
Yes. Mode-S 44D2AA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D2AA, octal 21151252, decimal 4,510,378.
What flights does 44D2AA operate?
Mode-S 44D2AA has broadcast 20 distinct callsigns, including JAF5JB, JAF43J, JAF6AD, TFL69C, TFL27K.