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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
Broadcasting now · callsign BEL37L · 34,000 ft
Flights observed
249
Distinct callsigns
20
Country
BE
Last broadcast
2h ago

Current position

44CDCA is currently broadcasting. Map zoomed to live position.

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
BEL4GU Brussels Airlines 8 2026-05-13
BEL8CZ Brussels Airlines 6 2026-05-26
BEL6CT Brussels Airlines 6 2026-05-11
BEL7FP Brussels Airlines 5 2026-05-11
BEL6NY Brussels Airlines 5 2026-05-26
BEL8KA Brussels Airlines 4 2026-05-27
BEL7LW Brussels Airlines 4 2026-04-28
BEL5UB Brussels Airlines 4 2026-04-28
BEL3SG Brussels Airlines 4 2026-05-27
BEL3KK Brussels Airlines 4 2026-05-12
BEL3CP Brussels Airlines 4 2026-04-28
BEL2UE Brussels Airlines 4 2026-05-12
BEL2SJ Brussels Airlines 4 2026-05-10
BEL2FM Brussels Airlines 4 2026-05-12
BEL19V Brussels Airlines 4 2026-05-11
BEL9VN Brussels Airlines 3 2026-05-27
BEL8MP Brussels Airlines 3 2026-04-28
BEL8CE Brussels Airlines 3 2026-05-30
BEL7TA Brussels Airlines 3 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BEL4EW BRU → LYS May 30, 14:05 UTCMay 30, 17:45 UTC3h 40m
2026-05-30 BEL4NK BER → BRU May 30, 11:25 UTCMay 30, 12:25 UTC1h 0m
2026-05-30 BEL8CE BRU → BER May 30, 09:05 UTCMay 30, 10:10 UTC1h 5m
2026-05-30 BEL1PD MRS → BRU May 30, 05:00 UTCMay 30, 06:25 UTC1h 25m
2026-05-29 BEL9WB BRU → MRS May 29, 20:00 UTCMay 29, 21:15 UTC1h 15m
2026-05-29 BEL3JZ BER → BRU May 29, 17:55 UTCMay 29, 19:00 UTC1h 5m
2026-05-29 BEL2HJ BRU → BER May 29, 14:45 UTCMay 29, 15:50 UTC1h 5m
2026-05-29 BEL1PA VLC → BRU May 29, 11:15 UTCMay 29, 13:10 UTC1h 55m
2026-05-29 BEL7JV BRU → VLC May 29, 07:55 UTCMay 29, 09:50 UTC1h 55m
2026-05-28 BEL5PR FRA → BRU May 28, 20:00 UTCMay 28, 20:40 UTC40m
2026-05-28 BEL2LG BRU → FRA May 28, 17:45 UTCMay 28, 18:20 UTC35m
2026-05-28 BEL2YK AGP → BRU May 28, 14:00 UTCMay 28, 16:25 UTC2h 25m
2026-05-28 BEL6EP BRU → AGP May 28, 10:30 UTCMay 28, 12:50 UTC2h 20m
2026-05-28 BEL1GH LIN → BRU May 28, 07:50 UTCMay 28, 09:05 UTC1h 15m
2026-05-28 BEL4CB BRU → LIN May 28, 05:30 UTCMay 28, 06:35 UTC1h 5m
2026-05-27 BEL3SG BRU → CDG May 27, 16:45 UTCMay 27, 18:45 UTC2h 0m
2026-05-27 BEL8KA BRU → FCO May 27, 13:20 UTCMay 27, 15:00 UTC1h 40m
2026-05-27 BEL9VN HER → BRU May 27, 08:40 UTCMay 27, 11:50 UTC3h 10m
2026-05-27 BEL1WH BRU → HER May 27, 04:04 UTCMay 27, 06:55 UTC2h 51m
2026-05-26 BEL37L LPA → BRU May 26, 17:39 UTCMay 26, 21:25 UTC3h 45m
2026-05-26 BEL4EW BRU → LYS May 26, 12:14 UTCMay 26, 16:05 UTC3h 50m
2026-05-26 BEL8CZ AGP → BRU May 26, 08:24 UTCMay 26, 10:39 UTC2h 15m
2026-05-26 BEL6NY BRU → AGP May 26, 04:15 UTCMay 26, 06:44 UTC2h 30m
2026-05-25 BEL5LC BRU → MXP May 25, 19:35 UTCMay 25, 21:24 UTC1h 50m
2026-05-25 BEL3WD BRU → FCO May 25, 16:40 UTCMay 25, 18:15 UTC1h 35m
2026-05-25 BEL4UT FAO → BRU May 25, 11:40 UTCMay 25, 14:10 UTC2h 30m
2026-05-25 BEL5KF BRU → FAO May 25, 07:40 UTCMay 25, 10:15 UTC2h 35m
2026-05-25 BEL7ZC GVA → BRU May 25, 05:15 UTCMay 25, 06:05 UTC50m
2026-05-24 BEL92K BRU → GVA May 24, 19:20 UTCMay 24, 20:15 UTC55m
2026-05-24 BEL2ZH ARN → BRU May 24, 15:45 UTCMay 24, 17:40 UTC1h 55m
2026-05-24 BEL4BP BRU → ARN May 24, 12:55 UTCMay 24, 14:35 UTC1h 40m
2026-05-24 BEL9AJ BRU → MAN May 24, 08:55 UTCMay 24, 11:15 UTC2h 20m
2026-05-24 BEL1UD BRU → CFU May 24, 05:15 UTCMay 24, 07:25 UTC2h 10m
2026-05-23 BEL3LI ACE → BRU May 23, 18:10 UTCMay 23, 22:00 UTC3h 50m
2026-05-23 BEL7NO BRU → ACE May 23, 13:00 UTCMay 23, 17:05 UTC4h 5m
2026-05-23 BEL4NK BER → BRU May 23, 10:05 UTCMay 23, 11:00 UTC55m
2026-05-23 BEL8CE BRU → BER May 23, 07:50 UTCMay 23, 08:55 UTC1h 5m
2026-05-21 BEL1BT IAD → BRU May 21, 17:05 UTCMay 21, 18:15 UTC1h 10m
2026-05-21 BEL6ZH BRU → LIN May 21, 14:50 UTCMay 21, 15:55 UTC1h 5m
2026-05-21 BEL7AD MAD → BRU May 21, 11:30 UTCMay 21, 13:15 UTC1h 45m
2026-05-21 BEL5EN BRU → MAD May 21, 07:45 UTCMay 21, 09:55 UTC2h 10m
2026-05-20 BEL8KG ZRH → BRU May 20, 19:05 UTCMay 20, 20:00 UTC55m
2026-05-20 BEL5LY BRU → ZRH May 20, 17:05 UTCMay 20, 18:05 UTC1h 0m
2026-05-20 BEL74C BCN → BRU May 20, 13:50 UTCMay 20, 15:45 UTC1h 55m
2026-05-20 BEL9QH BRU → BCN May 20, 10:45 UTCMay 20, 12:20 UTC1h 35m
2026-05-20 BEL1GH LIN → BRU May 20, 07:35 UTCMay 20, 08:50 UTC1h 15m
2026-05-20 BEL4CB BRU → LIN May 20, 05:30 UTCMay 20, 06:35 UTC1h 5m
2026-05-19 BEL9WV VIE → BRU May 19, 19:40 UTCMay 19, 21:05 UTC1h 25m
2026-05-19 BEL7VN BRU → VIE May 19, 16:45 UTCMay 19, 18:05 UTC1h 20m
2026-05-19 BEL74C BCN → BRU May 19, 13:40 UTCMay 19, 15:25 UTC1h 45m

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?
Yes. Mode-S 44CDCA is currently airborne.
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, BEL4GU, BEL8CZ, BEL6CT, BEL7FP.