Apparatus

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sensors Mode-S transponder

44D071

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-TCQ · AIRBUS A-320

Hex
44D071
Octal
21150161
Decimal
4,509,809
Country
BE
Tail
OO-TCQ
Type
A320
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
449
Distinct callsigns
20
Country
BE
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 44D071.

Country allocation

The ICAO 24-bit address 44D071 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
BEL9EL - 7 2026-07-17
BEL8NY - 7 2026-07-17
BEL72R - 7 2026-07-17
BEL6VF - 7 2026-07-17
BEL4GV - 7 2026-07-17
BEL1YC - 7 2026-07-17
BEL6VP - 6 2026-07-10
BEL3KK - 6 2026-07-20
BEL2UE - 6 2026-07-20
BEL1EV - 6 2026-07-10
BEL92K Brussels Airlines 5 2026-06-29
BEL8LT - 5 2026-07-19
BEL8CZ Brussels Airlines 5 2026-07-18
BEL7NL - 5 2026-07-19
BEL76T - 5 2026-06-18
BEL75Y Brussels Airlines 5 2026-07-25
BEL6NY Brussels Airlines 5 2026-07-18
BEL5UC - 5 2026-07-07
BEL5DP Brussels Airlines 5 2026-07-25
BEL4RE Brussels Airlines 5 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BEL5PR FRA → BRU Jul 26, 20:35 UTCJul 26, 21:10 UTC35m
2026-07-26 BEL2LG BRU → FRA Jul 26, 18:20 UTCJul 26, 18:55 UTC35m
2026-07-26 BEL2YK AGP → BRU Jul 26, 14:40 UTCJul 26, 17:10 UTC2h 30m
2026-07-26 BEL6EP BRU → AGP Jul 26, 10:15 UTCJul 26, 12:35 UTC2h 20m
2026-07-26 BEL7YB CDG → BRU Jul 26, 07:25 UTCJul 26, 08:00 UTC35m
2026-07-26 BEL3BP BRU → CDG Jul 26, 05:30 UTCJul 26, 06:05 UTC35m
2026-07-25 BEL75Y KGS → BRU Jul 25, 18:05 UTCJul 25, 21:25 UTC3h 20m
2026-07-25 BEL1TE BRU → KGS Jul 25, 13:35 UTCJul 25, 16:35 UTC3h 0m
2026-07-25 BEL5DP BIO → BRU Jul 25, 10:35 UTCJul 25, 11:55 UTC1h 20m
2026-07-25 BEL4RE BRU → BIO Jul 25, 07:55 UTCJul 25, 09:15 UTC1h 20m
2026-07-23 BEL5GT AGP → BRU Jul 23, 19:00 UTCJul 23, 21:30 UTC2h 30m
2026-07-23 BEL4GU BRU → AGP Jul 23, 14:50 UTCJul 23, 17:05 UTC2h 15m
2026-07-23 BEL3HE LIS → BRU Jul 23, 11:25 UTCJul 23, 13:35 UTC2h 10m
2026-07-23 BEL2DY BRU → LIS Jul 23, 07:35 UTCJul 23, 10:00 UTC2h 25m
2026-07-23 BEL8DM BCN → BRU Jul 23, 03:50 UTCJul 23, 05:35 UTC1h 45m
2026-07-22 BEL2LZ - Jul 22, 19:35 UTCJul 22, 21:10 UTC1h 35m
2026-07-22 BEL4WF BUD → BRU Jul 22, 16:30 UTCJul 22, 18:10 UTC1h 40m
2026-07-22 BEL6PR BRU → BUD Jul 22, 13:45 UTCJul 22, 15:15 UTC1h 30m
2026-07-22 BEL75Y KGS → BRU Jul 22, 04:20 UTCJul 22, 12:15 UTC7h 55m
2026-07-21 BEL4MR MIR → BRU Jul 21, 18:45 UTCJul 21, 20:45 UTC2h 0m
2026-07-21 BEL5TR - Jul 21, 14:55 UTCJul 21, 17:00 UTC2h 5m
2026-07-21 BEL7AD MAD → BRU Jul 21, 11:50 UTCJul 21, 13:40 UTC1h 50m
2026-07-21 BEL5EN BRU → MAD Jul 21, 08:05 UTCJul 21, 09:55 UTC1h 50m
2026-07-21 BEL2FR MAD → BRU Jul 21, 04:45 UTCJul 21, 06:35 UTC1h 50m
2026-07-20 BEL2FM BRU → MAD Jul 20, 19:15 UTCJul 20, 21:15 UTC2h 0m
2026-07-20 BEL2UE - Jul 20, 16:00 UTCJul 20, 17:55 UTC1h 55m
2026-07-20 BEL3KK - Jul 20, 12:45 UTCJul 20, 14:40 UTC1h 55m
2026-07-20 BEL8PZ CDG → BRU Jul 20, 08:30 UTCJul 20, 09:00 UTC30m
2026-07-20 BEL8KV BRU → CDG Jul 20, 06:20 UTCJul 20, 07:05 UTC45m
2026-07-19 BEL9LT NCE → BRU Jul 19, 21:05 UTCJul 19, 22:20 UTC1h 15m
2026-07-19 BEL1YL BRU → NCE Jul 19, 18:15 UTCJul 19, 19:45 UTC1h 30m
2026-07-19 BEL6KU ZTH → BRU Jul 19, 13:15 UTCJul 19, 16:05 UTC2h 50m
2026-07-19 BEL4VB WAW → BRU Jul 19, 09:25 UTCJul 19, 11:45 UTC2h 20m
2026-07-19 BEL7NL - Jul 19, 06:50 UTCJul 19, 07:40 UTC50m
2026-07-19 BEL8LT BRU → GVA Jul 19, 04:40 UTCJul 19, 05:30 UTC50m
2026-07-18 BEL6HB - Jul 18, 17:55 UTCJul 18, 21:25 UTC3h 30m
2026-07-18 BEL7QJ - Jul 18, 12:15 UTCJul 18, 16:25 UTC4h 10m
2026-07-18 BEL8CZ AGP → BRU Jul 18, 08:30 UTCJul 18, 10:50 UTC2h 20m
2026-07-18 BEL6NY BRU → AGP Jul 18, 04:35 UTCJul 18, 07:00 UTC2h 25m
2026-07-17 BEL72R GVA → BRU Jul 17, 20:29 UTCJul 17, 21:25 UTC55m
2026-07-17 BEL4GV - Jul 17, 18:29 UTCJul 17, 19:25 UTC55m
2026-07-17 BEL6VF NCE → BRU Jul 17, 15:55 UTCJul 17, 17:09 UTC1h 15m
2026-07-17 BEL8NY - Jul 17, 12:50 UTCJul 17, 14:20 UTC1h 30m
2026-07-17 BEL9EL - Jul 17, 09:15 UTCJul 17, 11:00 UTC1h 45m
2026-07-17 BEL1YC - Jul 17, 05:30 UTCJul 17, 07:05 UTC1h 35m
2026-07-16 BEL6CT - Jul 16, 12:40 UTCJul 16, 14:20 UTC1h 40m
2026-07-16 BEL7FP BRU → BCN Jul 16, 08:35 UTCJul 16, 10:29 UTC1h 55m
2026-07-16 BEL5AU OSL → BRU Jul 16, 05:00 UTCJul 16, 06:40 UTC1h 40m
2026-07-15 BEL1EW BRU → OSL Jul 15, 19:35 UTCJul 15, 21:15 UTC1h 40m
2026-07-15 BEL5ZF - Jul 15, 16:00 UTCJul 15, 18:20 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-TCQ page for operator, model, and routing details .

Mode-S 44D071 frequently asked

What is Mode-S code 44D071?
44D071 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-TCQ.
Where is Mode-S 44D071 registered?
Mode-S code 44D071 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D071 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D071, octal 21150161, decimal 4,509,809.
What flights does 44D071 operate?
Mode-S 44D071 has broadcast 20 distinct callsigns, including BEL9EL, BEL8NY, BEL72R, BEL6VF, BEL4GV.