Apparatus

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sensors Mode-S transponder

44CE61

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-SSA · AIRBUS A-319

Hex
44CE61
Octal
21147141
Decimal
4,509,281
Country
BE
Tail
OO-SSA
Type
A319
No current signal · last broadcast 1h ago
Flights observed
528
Distinct callsigns
20
Country
BE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 44CE61.

Country allocation

The ICAO 24-bit address 44CE61 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
BEL7GZ - 10 2026-07-02
BEL5MQ - 10 2026-07-02
BEL2WM Brussels Airlines 10 2026-06-29
BEL4KY - 9 2026-06-20
BEL3DQ - 9 2026-06-20
BEL9BP - 8 2026-07-02
BEL8ZB - 8 2026-06-26
BEL5NZ - 8 2026-06-29
BEL4LZ - 8 2026-06-26
BEL2PN - 8 2026-07-02
BEL9UR - 7 2026-06-14
BEL9KU - 7 2026-06-14
BEL9CJ - 7 2026-06-21
BEL8UK - 7 2026-06-21
BEL8LT - 7 2026-06-20
BEL8KG - 7 2026-07-10
BEL5LY - 7 2026-07-10
BEL9PY - 6 2026-06-18
BEL9EU Brussels Airlines 6 2026-06-08
BEL8YE - 6 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BEL2SJ - Jul 14, 19:35 UTCJul 14, 20:15 UTC40m
2026-07-14 BEL3SG - Jul 14, 16:35 UTCJul 14, 18:25 UTC1h 50m
2026-07-14 BEL8KA - Jul 14, 13:15 UTCJul 14, 14:55 UTC1h 40m
2026-07-14 BEL8MP - Jul 14, 10:30 UTCJul 14, 11:25 UTC55m
2026-07-14 BEL5UB BRU → MAN Jul 14, 08:30 UTCJul 14, 09:25 UTC55m
2026-07-14 BEL8YE BER → BRU Jul 14, 05:15 UTCJul 14, 06:25 UTC1h 10m
2026-07-13 BEL1ZK - Jul 13, 19:05 UTCJul 13, 20:00 UTC55m
2026-07-13 BEL3CQ - Jul 13, 16:55 UTCJul 13, 18:00 UTC1h 5m
2026-07-13 BEL9EV BRU → MUC Jul 13, 14:45 UTCJul 13, 15:40 UTC55m
2026-07-13 BEL8MP MAN → BRU Jul 13, 11:05 UTCJul 13, 12:05 UTC1h 0m
2026-07-13 BEL5UB BRU → MAN Jul 13, 08:45 UTCJul 13, 09:45 UTC1h 0m
2026-07-13 BEL6WA BUD → BRU Jul 13, 05:05 UTCJul 13, 06:50 UTC1h 45m
2026-07-12 BEL7JU - Jul 12, 19:30 UTCJul 12, 21:10 UTC1h 40m
2026-07-12 BEL7AM VIE → BRU Jul 12, 16:30 UTCJul 12, 17:55 UTC1h 25m
2026-07-12 BEL3XW BRU → VIE Jul 12, 14:10 UTCJul 12, 15:30 UTC1h 20m
2026-07-12 BEL26H - Jul 12, 10:55 UTCJul 12, 12:50 UTC1h 55m
2026-07-12 BEL26H ALC → ALC Jul 12, 10:20 UTCJul 12, 10:40 UTC20m
2026-07-12 BEL8GP BRU → ALC Jul 12, 07:05 UTCJul 12, 09:25 UTC2h 20m
2026-07-11 BEL5GT - Jul 11, 19:00 UTCJul 11, 21:15 UTC2h 15m
2026-07-11 BEL4GU - Jul 11, 15:30 UTCJul 11, 17:55 UTC2h 25m
2026-07-11 BEL23U EDI → BRU Jul 11, 13:10 UTCJul 11, 14:20 UTC1h 10m
2026-07-11 BEL4OZ BRU → EDI Jul 11, 09:25 UTCJul 11, 10:35 UTC1h 10m
2026-07-11 BEL7DD MUC → BRU Jul 11, 07:15 UTCJul 11, 08:15 UTC1h 0m
2026-07-11 BEL7TC BRU → MUC Jul 11, 05:05 UTCJul 11, 06:01 UTC55m
2026-07-10 BEL8KG ZRH → BRU Jul 10, 18:30 UTCJul 10, 19:35 UTC1h 5m
2026-07-10 BEL5LY BRU → ZRH Jul 10, 16:20 UTCJul 10, 17:15 UTC55m
2026-07-10 BEL74C BCN → BRU Jul 10, 13:45 UTCJul 10, 15:25 UTC1h 40m
2026-07-10 BEL9QH BRU → BCN Jul 10, 10:45 UTCJul 10, 12:40 UTC1h 55m
2026-07-10 BEL1GH - Jul 10, 07:30 UTCJul 10, 08:45 UTC1h 15m
2026-07-10 BEL4CB BRU → LIN Jul 10, 05:25 UTCJul 10, 06:35 UTC1h 10m
2026-07-09 BEL9LT NCE → BRU Jul 9, 20:35 UTCJul 9, 22:00 UTC1h 25m
2026-07-09 BEL1YL BRU → NCE Jul 9, 18:05 UTCJul 9, 19:35 UTC1h 30m
2026-07-09 BEL2CA - Jul 9, 15:35 UTCJul 9, 16:35 UTC1h 0m
2026-07-09 BEL9SE BRU → GVA Jul 9, 13:35 UTCJul 9, 14:30 UTC55m
2026-07-09 BEL4QA VIE → BRU Jul 9, 10:50 UTCJul 9, 12:25 UTC1h 35m
2026-07-09 BEL5RA BRU → VIE Jul 9, 08:30 UTCJul 9, 09:45 UTC1h 15m
2026-07-08 BEL23U EDI → BRU Jul 8, 12:15 UTCJul 8, 13:40 UTC1h 25m
2026-07-08 BEL4OZ - Jul 8, 09:40 UTCJul 8, 10:55 UTC1h 15m
2026-07-08 BEL7DD - Jul 8, 07:25 UTCJul 8, 08:25 UTC1h 0m
2026-07-08 BEL7TC - Jul 8, 05:05 UTCJul 8, 06:00 UTC55m
2026-07-07 BEL8KG - Jul 7, 19:15 UTCJul 7, 20:05 UTC50m
2026-07-07 BEL5LY BRU → ZRH Jul 7, 17:15 UTCJul 7, 18:10 UTC55m
2026-07-07 BEL74C BCN → BRU Jul 7, 14:30 UTCJul 7, 16:15 UTC1h 45m
2026-07-07 BEL9QH - Jul 7, 10:40 UTCJul 7, 12:20 UTC1h 40m
2026-07-07 BEL1GH LIN → BRU Jul 7, 08:10 UTCJul 7, 09:25 UTC1h 15m
2026-07-07 BEL4CB - Jul 7, 06:15 UTCJul 7, 07:15 UTC1h 0m
2026-07-05 BEL1EV - Jul 5, 12:15 UTCJul 5, 13:35 UTC1h 20m
2026-07-05 BEL6VP BRU → VCE Jul 5, 08:30 UTCJul 5, 09:45 UTC1h 15m
2026-07-05 BEL8YE - Jul 5, 05:15 UTCJul 5, 06:20 UTC1h 5m
2026-07-04 BEL1ZK BRU → BER Jul 4, 19:05 UTCJul 4, 20:05 UTC1h 0m

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

Mode-S 44CE61 frequently asked

What is Mode-S code 44CE61?
44CE61 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-SSA.
Where is Mode-S 44CE61 registered?
Mode-S code 44CE61 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CE61 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 44CE61, octal 21147141, decimal 4,509,281.
What flights does 44CE61 operate?
Mode-S 44CE61 has broadcast 20 distinct callsigns, including BEL7GZ, BEL5MQ, BEL2WM, BEL4KY, BEL3DQ.