Apparatus

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sensors Mode-S transponder

44CE6F

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-SSO · AIRBUS A-319

Hex
44CE6F
Octal
21147157
Decimal
4,509,295
Country
BE
Tail
OO-SSO
Type
A319
No current signal · last broadcast 1h ago
Flights observed
525
Distinct callsigns
20
Country
BE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 44CE6F.

Country allocation

The ICAO 24-bit address 44CE6F 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
BEL9HZ - 10 2026-07-04
BEL9CJ - 10 2026-07-03
BEL8UK - 10 2026-07-03
BEL5BJ - 10 2026-07-03
BEL8MP - 8 2026-07-11
BEL6WA - 8 2026-07-14
BEL5UB - 8 2026-07-11
BEL4CR - 8 2026-06-24
BEL9UR - 7 2026-07-07
BEL9SW Brussels Airlines 7 2026-07-03
BEL9KU - 7 2026-07-07
BEL8YE - 7 2026-06-26
BEL7TA Brussels Airlines 7 2026-05-25
BEL7LF - 7 2026-07-03
BEL7JU - 7 2026-07-13
BEL6UA Brussels Airlines 7 2026-06-11
BEL4DQ Brussels Airlines 7 2026-05-25
BEL2JZ Brussels Airlines 7 2026-06-11
BEL9PY - 6 2026-07-13
BEL8ZB - 6 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BEL4WF - Jul 14, 17:15 UTCJul 14, 17:45 UTC30m
2026-07-14 BEL6PR BRU → BUD Jul 14, 14:10 UTCJul 14, 15:35 UTC1h 25m
2026-07-14 BEL1EV - Jul 14, 11:10 UTCJul 14, 12:45 UTC1h 35m
2026-07-14 BEL6VP BRU → VCE Jul 14, 08:55 UTCJul 14, 10:10 UTC1h 15m
2026-07-14 BEL6WA BUD → BRU Jul 14, 05:00 UTCJul 14, 06:45 UTC1h 45m
2026-07-13 BEL7JU - Jul 13, 19:20 UTCJul 13, 20:50 UTC1h 30m
2026-07-13 BEL9PY - Jul 13, 16:10 UTCJul 13, 17:55 UTC1h 45m
2026-07-13 BEL5XD BRU → WAW Jul 13, 13:30 UTCJul 13, 15:00 UTC1h 30m
2026-07-13 BEL4NK - Jul 13, 10:15 UTCJul 13, 11:25 UTC1h 10m
2026-07-13 BEL8CE BRU → BER Jul 13, 08:01 UTCJul 13, 09:00 UTC1h 0m
2026-07-13 BEL1PD - Jul 13, 04:50 UTCJul 13, 06:15 UTC1h 25m
2026-07-12 BEL9WB - Jul 12, 19:50 UTCJul 12, 21:10 UTC1h 20m
2026-07-12 BEL3SG - Jul 12, 16:25 UTCJul 12, 18:15 UTC1h 50m
2026-07-12 BEL8KA - Jul 12, 13:25 UTCJul 12, 14:55 UTC1h 30m
2026-07-12 BEL1EV - Jul 12, 10:55 UTCJul 12, 12:10 UTC1h 15m
2026-07-12 BEL6VP - Jul 12, 08:15 UTCJul 12, 09:30 UTC1h 15m
2026-07-12 BEL7ZC - Jul 12, 05:20 UTCJul 12, 06:10 UTC50m
2026-07-11 BEL92K BRU → GVA Jul 11, 18:55 UTCJul 11, 19:50 UTC55m
2026-07-11 BEL2CA GVA → BRU Jul 11, 16:00 UTCJul 11, 16:50 UTC50m
2026-07-11 BEL9SE BRU → GVA Jul 11, 13:25 UTCJul 11, 14:55 UTC1h 30m
2026-07-11 BEL8MP MAN → BRU Jul 11, 10:45 UTCJul 11, 11:40 UTC55m
2026-07-11 BEL5UB BRU → MAN Jul 11, 08:30 UTCJul 11, 09:25 UTC55m
2026-07-10 BEL2WM - Jul 10, 16:00 UTCJul 10, 17:25 UTC1h 25m
2026-07-10 BEL5NZ BRU → BLQ Jul 10, 12:25 UTCJul 10, 13:50 UTC1h 25m
2026-07-10 BEL5MQ HAM → BRU Jul 10, 10:15 UTCJul 10, 11:15 UTC1h 0m
2026-07-10 BEL7GZ BRU → HAM Jul 10, 08:05 UTCJul 10, 08:50 UTC45m
2026-07-10 BEL6WA - Jul 10, 04:45 UTCJul 10, 06:40 UTC1h 55m
2026-07-09 BEL7JU BRU → BUD Jul 9, 19:20 UTCJul 9, 20:55 UTC1h 35m
2026-07-09 BEL9PY WAW → BRU Jul 9, 16:25 UTCJul 9, 18:10 UTC1h 45m
2026-07-09 BEL5XD BRU → WAW Jul 9, 13:45 UTCJul 9, 15:15 UTC1h 30m
2026-07-09 BEL4UG - Jul 9, 10:25 UTCJul 9, 11:45 UTC1h 20m
2026-07-09 BEL8WD BRU → TLS Jul 9, 08:05 UTCJul 9, 09:25 UTC1h 20m
2026-07-09 BEL8HW GOT → BRU Jul 9, 05:10 UTCJul 9, 06:35 UTC1h 25m
2026-07-08 BEL3UC - Jul 8, 19:10 UTCJul 8, 20:35 UTC1h 25m
2026-07-08 BEL5VA OLB → BRU Jul 8, 15:30 UTCJul 8, 17:20 UTC1h 50m
2026-07-08 BEL7VB - Jul 8, 12:45 UTCJul 8, 14:30 UTC1h 45m
2026-07-08 BEL4LZ FRA → BRU Jul 8, 09:20 UTCJul 8, 09:55 UTC35m
2026-07-08 BEL8ZB BRU → FRA Jul 8, 07:00 UTCJul 8, 07:40 UTC40m
2026-07-08 BEL8DM BCN → BRU Jul 8, 03:40 UTCJul 8, 05:30 UTC1h 50m
2026-07-07 BEL2LZ - Jul 7, 19:35 UTCJul 7, 21:20 UTC1h 45m
2026-07-07 BEL1BT LIN → BRU Jul 7, 17:20 UTCJul 7, 18:30 UTC1h 10m
2026-07-07 BEL6ZH BRU → LIN Jul 7, 14:40 UTCJul 7, 15:40 UTC1h 0m
2026-07-07 BEL9UR - Jul 7, 11:30 UTCJul 7, 12:55 UTC1h 25m
2026-07-07 BEL9KU - Jul 7, 09:10 UTCJul 7, 10:25 UTC1h 15m
2026-07-07 BEL7NL - Jul 7, 06:25 UTCJul 7, 07:25 UTC1h 0m
2026-07-07 BEL8LT - Jul 7, 04:35 UTCJul 7, 05:35 UTC1h 0m
2026-07-06 BEL5PR FRA → BRU Jul 6, 20:10 UTCJul 6, 20:45 UTC35m
2026-07-06 BEL2LG BRU → FRA Jul 6, 17:50 UTCJul 6, 18:45 UTC55m
2026-07-06 BEL2WM BLQ → BRU Jul 6, 14:20 UTCJul 6, 15:50 UTC1h 30m
2026-07-06 BEL5NZ - Jul 6, 11:50 UTCJul 6, 13:05 UTC1h 15m

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

Mode-S 44CE6F frequently asked

What is Mode-S code 44CE6F?
44CE6F is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-SSO.
Where is Mode-S 44CE6F registered?
Mode-S code 44CE6F is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CE6F broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44CE6F, octal 21147157, decimal 4,509,295.
What flights does 44CE6F operate?
Mode-S 44CE6F has broadcast 20 distinct callsigns, including BEL9HZ, BEL9CJ, BEL8UK, BEL5BJ, BEL8MP.