Apparatus

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sensors Mode-S transponder

44CE78

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-SSX · AIRBUS A-319

Hex
44CE78
Octal
21147170
Decimal
4,509,304
Country
BE
Tail
OO-SSX
Type
A319
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
390
Distinct callsigns
20
Country
BE
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 44CE78.

Country allocation

The ICAO 24-bit address 44CE78 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
BEL9UR - 10 2026-07-13
BEL9KU - 9 2026-07-13
BEL8YE - 8 2026-07-12
BEL1ZK - 8 2026-07-11
BEL8NY Brussels Airlines 6 2026-07-25
BEL8CE Brussels Airlines 6 2026-07-25
BEL6VF Brussels Airlines 6 2026-07-25
BEL4NK Brussels Airlines 6 2026-07-25
BEL9EV - 5 2026-07-16
BEL8RD - 5 2026-06-16
BEL8LT - 5 2026-07-16
BEL8DM - 5 2026-06-26
BEL7NL - 5 2026-07-16
BEL7JU Brussels Airlines 5 2026-07-26
BEL6ZH - 5 2026-07-21
BEL6NQ - 5 2026-07-17
BEL5WE - 5 2026-07-17
BEL5EP - 5 2026-07-16
BEL56L - 5 2026-06-16
BEL3CQ - 5 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BEL7JU BRU → BUD Jul 26, 19:35 UTCJul 26, 21:05 UTC1h 30m
2026-07-26 BEL7AM VIE → BRU Jul 26, 16:35 UTCJul 26, 18:00 UTC1h 25m
2026-07-26 BEL3XW BRU → VIE Jul 26, 14:35 UTCJul 26, 15:50 UTC1h 15m
2026-07-26 BEL7AD MAD → BRU Jul 26, 11:25 UTCJul 26, 13:25 UTC2h 0m
2026-07-26 BEL5EN BRU → MAD Jul 26, 07:45 UTCJul 26, 09:30 UTC1h 45m
2026-07-26 BEL7ZC - Jul 26, 05:15 UTCJul 26, 06:10 UTC55m
2026-07-25 BEL92K BRU → GVA Jul 25, 18:55 UTCJul 25, 19:45 UTC50m
2026-07-25 BEL6VF NCE → BRU Jul 25, 14:40 UTCJul 25, 16:15 UTC1h 35m
2026-07-25 BEL8NY BRU → NCE Jul 25, 12:00 UTCJul 25, 13:30 UTC1h 30m
2026-07-25 BEL4NK BER → BRU Jul 25, 09:50 UTCJul 25, 10:50 UTC1h 0m
2026-07-25 BEL8CE BRU → BER Jul 25, 07:45 UTCJul 25, 08:45 UTC1h 0m
2026-07-25 BEL7ZC GVA → BRU Jul 25, 05:25 UTCJul 25, 06:20 UTC55m
2026-07-24 BEL92K BRU → GVA Jul 24, 18:55 UTCJul 24, 19:50 UTC55m
2026-07-24 BEL6VF NCE → BRU Jul 24, 15:00 UTCJul 24, 16:15 UTC1h 15m
2026-07-24 BEL8NY BRU → NCE Jul 24, 12:15 UTCJul 24, 13:45 UTC1h 30m
2026-07-24 BEL9904 MAD → BRU Jul 24, 10:30 UTCJul 24, 11:05 UTC35m
2026-07-24 BEL1635 BRU → CDG Jul 24, 09:05 UTCJul 24, 09:45 UTC40m
2026-07-24 BEL8HW GOT → BRU Jul 24, 05:15 UTCJul 24, 06:30 UTC1h 15m
2026-07-23 BEL3UC BRU → GOT Jul 23, 19:40 UTCJul 23, 21:05 UTC1h 25m
2026-07-23 BEL9PY WAW → BRU Jul 23, 17:05 UTCJul 23, 18:30 UTC1h 25m
2026-07-23 BEL5XD BRU → WAW Jul 23, 13:45 UTCJul 23, 15:25 UTC1h 40m
2026-07-23 BEL6HF NCE → BRU Jul 23, 09:50 UTCJul 23, 11:10 UTC1h 20m
2026-07-23 BEL5CG BRU → NCE Jul 23, 06:20 UTCJul 23, 07:45 UTC1h 25m
2026-07-22 BEL5PR FRA → BRU Jul 22, 19:55 UTCJul 22, 20:35 UTC40m
2026-07-22 BEL2LG - Jul 22, 17:50 UTCJul 22, 18:25 UTC35m
2026-07-22 BEL1EV VCE → BRU Jul 22, 11:15 UTCJul 22, 12:20 UTC1h 5m
2026-07-22 BEL7HQ ARN → BRU Jul 22, 04:55 UTCJul 22, 05:25 UTC30m
2026-07-21 BEL9FL BRU → ARN Jul 21, 21:20 UTCJul 21, 23:05 UTC1h 45m
2026-07-21 BEL1BT IAD → BRU Jul 21, 17:25 UTCJul 21, 18:30 UTC1h 5m
2026-07-21 BEL6ZH - Jul 21, 15:10 UTCJul 21, 16:20 UTC1h 10m
2026-07-21 BEL23U EDI → BRU Jul 21, 11:55 UTCJul 21, 13:00 UTC1h 5m
2026-07-21 BEL4OZ BRU → EDI Jul 21, 09:30 UTCJul 21, 10:50 UTC1h 20m
2026-07-21 BEL7DD MUC → BRU Jul 21, 07:20 UTCJul 21, 08:15 UTC55m
2026-07-21 BEL7TC BRU → MUC Jul 21, 05:05 UTCJul 21, 05:55 UTC50m
2026-07-20 BEL8KG ZRH → BRU Jul 20, 18:25 UTCJul 20, 19:20 UTC55m
2026-07-20 BEL5LY BRU → ZRH Jul 20, 16:20 UTCJul 20, 17:10 UTC50m
2026-07-20 BEL74C BCN → BRU Jul 20, 13:25 UTCJul 20, 15:10 UTC1h 45m
2026-07-20 BEL9QH BRU → BCN Jul 20, 10:40 UTCJul 20, 12:20 UTC1h 40m
2026-07-20 BEL7DD MUC → BRU Jul 20, 07:10 UTCJul 20, 08:15 UTC1h 5m
2026-07-20 BEL7TC BRU → MUC Jul 20, 05:00 UTCJul 20, 05:55 UTC55m
2026-07-19 BEL5PR FRA → BRU Jul 19, 20:05 UTCJul 19, 20:40 UTC35m
2026-07-19 BEL2LG - Jul 19, 18:05 UTCJul 19, 18:40 UTC35m
2026-07-19 BEL9SW - Jul 19, 13:30 UTCJul 19, 14:30 UTC1h 0m
2026-07-19 BEL7LF BRU → MUC Jul 19, 11:10 UTCJul 19, 12:10 UTC1h 0m
2026-07-19 BEL7DD - Jul 19, 07:15 UTCJul 19, 08:15 UTC1h 0m
2026-07-19 BEL7TC - Jul 19, 05:10 UTCJul 19, 06:05 UTC55m
2026-07-18 BEL5VA SPU → BRU Jul 18, 16:00 UTCJul 18, 17:45 UTC1h 45m
2026-07-18 BEL7VB BRU → OLB Jul 18, 13:05 UTCJul 18, 14:45 UTC1h 40m
2026-07-18 BEL9EL FCO → BRU Jul 18, 09:55 UTCJul 18, 11:45 UTC1h 50m
2026-07-18 BEL1YC BRU → FCO Jul 18, 07:10 UTCJul 18, 08:40 UTC1h 30m

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

Mode-S 44CE78 frequently asked

What is Mode-S code 44CE78?
44CE78 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-SSX.
Where is Mode-S 44CE78 registered?
Mode-S code 44CE78 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CE78 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44CE78, octal 21147170, decimal 4,509,304.
What flights does 44CE78 operate?
Mode-S 44CE78 has broadcast 20 distinct callsigns, including BEL9UR, BEL9KU, BEL8YE, BEL1ZK, BEL8NY.