Apparatus

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sensors Mode-S transponder

44CDCA

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-SNJ · AIRBUS A-320

Hex
44CDCA
Octal
21146712
Decimal
4,509,130
Country
BE
Tail
OO-SNJ
Type
A320
No current signal · last broadcast 4h ago
Flights observed
458
Distinct callsigns
20
Country
BE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 44CDCA.

Country allocation

The ICAO 24-bit address 44CDCA 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
BEL5GT Brussels Airlines 9 2026-05-13
BEL5UC - 8 2026-07-10
BEL4GU Brussels Airlines 8 2026-05-13
BEL2HV - 8 2026-07-10
BEL8CZ Brussels Airlines 7 2026-06-11
BEL8CE - 7 2026-07-07
BEL6CT - 7 2026-07-11
BEL4NK - 7 2026-07-07
BEL92K Brussels Airlines 6 2026-07-06
BEL7JV Brussels Airlines 6 2026-06-24
BEL7FP - 6 2026-07-11
BEL6NY Brussels Airlines 6 2026-06-11
BEL1PA - 6 2026-06-24
BEL1EW - 6 2026-07-14
BEL7ZC - 5 2026-07-07
BEL7TA - 5 2026-07-14
BEL7AD - 5 2026-06-28
BEL5KF - 5 2026-06-22
BEL5EN - 5 2026-06-28
BEL5DP Brussels Airlines 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BEL1EW BRU → OSL Jul 14, 19:30 UTCJul 14, 21:10 UTC1h 40m
2026-07-14 BEL7TA - Jul 14, 16:35 UTCJul 14, 17:55 UTC1h 20m
2026-07-14 BEL4DQ BRU → GOT Jul 14, 14:20 UTCJul 14, 15:40 UTC1h 20m
2026-07-14 BEL56B - Jul 14, 09:10 UTCJul 14, 13:00 UTC3h 50m
2026-07-14 BEL46C - Jul 14, 04:20 UTCJul 14, 07:35 UTC3h 15m
2026-07-13 BEL8BJ ATH → BRU Jul 13, 18:05 UTCJul 13, 21:15 UTC3h 10m
2026-07-13 BEL4LH BRU → ATH Jul 13, 14:10 UTCJul 13, 16:50 UTC2h 40m
2026-07-13 BEL1EV - Jul 13, 11:35 UTCJul 13, 13:00 UTC1h 25m
2026-07-13 BEL6VP - Jul 13, 08:40 UTCJul 13, 09:55 UTC1h 15m
2026-07-13 BEL7HQ ARN → BRU Jul 13, 05:15 UTCJul 13, 07:15 UTC2h 0m
2026-07-12 BEL9FL BRU → ARN Jul 12, 19:50 UTCJul 12, 21:40 UTC1h 50m
2026-07-12 BEL9PY - Jul 12, 16:35 UTCJul 12, 18:25 UTC1h 50m
2026-07-12 BEL5XD BRU → WAW Jul 12, 13:45 UTCJul 12, 15:25 UTC1h 40m
2026-07-11 BEL1RA - Jul 11, 19:05 UTCJul 11, 22:05 UTC3h 0m
2026-07-11 BEL5VD - Jul 11, 14:40 UTCJul 11, 17:30 UTC2h 50m
2026-07-11 BEL6CT BCN → BRU Jul 11, 11:00 UTCJul 11, 12:40 UTC1h 40m
2026-07-11 BEL7FP BRU → BCN Jul 11, 08:01 UTCJul 11, 09:45 UTC1h 45m
2026-07-11 BEL5AU OSL → BRU Jul 11, 05:01 UTCJul 11, 06:50 UTC1h 50m
2026-07-10 BEL1EW BRU → OSL Jul 10, 19:35 UTCJul 10, 21:15 UTC1h 40m
2026-07-10 BEL3JZ - Jul 10, 17:10 UTCJul 10, 18:15 UTC1h 5m
2026-07-10 BEL2HJ BRU → BER Jul 10, 14:45 UTCJul 10, 15:50 UTC1h 5m
2026-07-10 BEL5UC - Jul 10, 11:40 UTCJul 10, 13:35 UTC1h 55m
2026-07-10 BEL2HV - Jul 10, 08:15 UTCJul 10, 10:15 UTC2h 0m
2026-07-10 BEL76T TLS → BRU Jul 10, 05:10 UTCJul 10, 06:30 UTC1h 20m
2026-07-09 BEL29D BRU → TLS Jul 9, 19:40 UTCJul 9, 21:00 UTC1h 20m
2026-07-09 BEL3JZ - Jul 9, 17:20 UTCJul 9, 18:20 UTC1h 0m
2026-07-09 BEL2HJ BRU → BER Jul 9, 15:00 UTCJul 9, 16:05 UTC1h 5m
2026-07-09 BEL5UC - Jul 9, 11:50 UTCJul 9, 13:45 UTC1h 55m
2026-07-09 BEL2HV - Jul 9, 08:10 UTCJul 9, 09:55 UTC1h 45m
2026-07-09 BEL5AU - Jul 9, 05:00 UTCJul 9, 06:35 UTC1h 35m
2026-07-08 BEL1EW BRU → OSL Jul 8, 19:15 UTCJul 8, 20:55 UTC1h 40m
2026-07-08 BEL5UC - Jul 8, 11:15 UTCJul 8, 13:15 UTC2h 0m
2026-07-08 BEL2HV - Jul 8, 08:10 UTCJul 8, 09:50 UTC1h 40m
2026-07-08 BEL5AU - Jul 8, 05:00 UTCJul 8, 06:25 UTC1h 25m
2026-07-07 BEL1EW - Jul 7, 19:15 UTCJul 7, 20:55 UTC1h 40m
2026-07-07 BEL2ZH ARN → BRU Jul 7, 16:00 UTCJul 7, 17:50 UTC1h 50m
2026-07-07 BEL4BP BRU → ARN Jul 7, 13:00 UTCJul 7, 14:50 UTC1h 50m
2026-07-07 BEL4NK BER → BRU Jul 7, 09:50 UTCJul 7, 10:55 UTC1h 5m
2026-07-07 BEL8CE - Jul 7, 07:55 UTCJul 7, 08:55 UTC1h 0m
2026-07-07 BEL7ZC GVA → BRU Jul 7, 05:15 UTCJul 7, 06:10 UTC55m
2026-07-06 BEL92K BRU → GVA Jul 6, 19:00 UTCJul 6, 19:55 UTC55m
2026-07-06 BEL5DP BIO → BRU Jul 6, 15:15 UTCJul 6, 16:45 UTC1h 30m
2026-07-06 BEL4RE - Jul 6, 12:25 UTCJul 6, 13:40 UTC1h 15m
2026-07-06 BEL7DD - Jul 6, 07:20 UTCJul 6, 08:20 UTC1h 0m
2026-07-06 BEL7TC - Jul 6, 05:05 UTCJul 6, 06:00 UTC55m
2026-07-05 BEL7TA - Jul 5, 16:55 UTCJul 5, 18:15 UTC1h 20m
2026-07-05 BEL4DQ BRU → GOT Jul 5, 14:30 UTCJul 5, 15:50 UTC1h 20m
2026-07-05 BEL26H - Jul 5, 11:05 UTCJul 5, 13:15 UTC2h 10m
2026-07-05 BEL8GP BRU → ALC Jul 5, 07:15 UTCJul 5, 09:15 UTC2h 0m
2026-07-04 BEL2ET LIS → BRU Jul 4, 19:40 UTCJul 4, 22:00 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-SNJ page for operator, model, and routing details .

Mode-S 44CDCA frequently asked

What is Mode-S code 44CDCA?
44CDCA is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-SNJ.
Where is Mode-S 44CDCA registered?
Mode-S code 44CDCA is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CDCA broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44CDCA, octal 21146712, decimal 4,509,130.
What flights does 44CDCA operate?
Mode-S 44CDCA has broadcast 20 distinct callsigns, including BEL5GT, BEL5UC, BEL4GU, BEL2HV, BEL8CZ.