Apparatus

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sensors Mode-S transponder

44CDCF

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-SNO · AIRBUS A-320

Hex
44CDCF
Octal
21146717
Decimal
4,509,135
Country
BE
Tail
OO-SNO
Type
A320
No current signal · last broadcast 3h ago
Flights observed
470
Distinct callsigns
20
Country
BE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 44CDCF.

Country allocation

The ICAO 24-bit address 44CDCF 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
BEL7AD - 10 2026-07-12
BEL5EN - 10 2026-07-12
BEL8CZ - 9 2026-07-09
BEL6NY - 9 2026-07-09
BEL2FR - 9 2026-07-13
BEL2FM - 9 2026-07-12
BEL5UC Brussels Airlines 8 2026-06-06
BEL3KK Brussels Airlines 8 2026-06-25
BEL2UE - 8 2026-06-25
BEL2HV Brussels Airlines 8 2026-06-06
BEL9HR - 6 2026-06-15
BEL76T Brussels Airlines 6 2026-06-12
BEL29D Brussels Airlines 6 2026-06-11
BEL1UF - 6 2026-06-15
BEL9FU - 5 2026-07-04
BEL8HW - 5 2026-06-23
BEL7TA - 5 2026-07-12
BEL7LW - 5 2026-07-01
BEL7FP - 5 2026-07-13
BEL5GR - 5 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BEL8EM - Jul 14, 20:00 UTCJul 14, 22:30 UTC2h 30m
2026-07-14 BEL5AL - Jul 14, 15:25 UTCJul 14, 18:25 UTC3h 0m
2026-07-14 BEL6QG RHO → BRU Jul 14, 10:00 UTCJul 14, 13:35 UTC3h 35m
2026-07-14 BEL6YD BRU → RHO Jul 14, 04:25 UTCJul 14, 07:20 UTC2h 55m
2026-07-13 BEL6CT - Jul 13, 11:55 UTCJul 13, 13:25 UTC1h 30m
2026-07-13 BEL7FP BRU → BCN Jul 13, 08:20 UTCJul 13, 10:05 UTC1h 45m
2026-07-13 BEL2FR - Jul 13, 04:40 UTCJul 13, 06:25 UTC1h 45m
2026-07-12 BEL2FM BRU → MAD Jul 12, 19:55 UTCJul 12, 22:05 UTC2h 10m
2026-07-12 BEL7TA - Jul 12, 17:10 UTCJul 12, 18:35 UTC1h 25m
2026-07-12 BEL4DQ BRU → GOT Jul 12, 14:50 UTCJul 12, 16:01 UTC1h 10m
2026-07-12 BEL7AD - Jul 12, 11:50 UTCJul 12, 13:30 UTC1h 40m
2026-07-12 BEL5EN BRU → MAD Jul 12, 08:25 UTCJul 12, 10:20 UTC1h 55m
2026-07-11 BEL36T - Jul 11, 19:05 UTCJul 11, 21:35 UTC2h 30m
2026-07-11 BEL6BM - Jul 11, 15:05 UTCJul 11, 17:25 UTC2h 20m
2026-07-11 BEL4UT FAO → BRU Jul 11, 11:30 UTCJul 11, 13:45 UTC2h 15m
2026-07-11 BEL5KF BRU → FAO Jul 11, 07:40 UTCJul 11, 10:20 UTC2h 40m
2026-07-10 BEL37L - Jul 10, 18:25 UTCJul 10, 21:45 UTC3h 20m
2026-07-10 BEL4EW - Jul 10, 12:45 UTCJul 10, 16:35 UTC3h 50m
2026-07-10 BEL4NK - Jul 10, 09:55 UTCJul 10, 10:55 UTC1h 0m
2026-07-10 BEL8CE BRU → BER Jul 10, 07:45 UTCJul 10, 08:50 UTC1h 5m
2026-07-10 BEL2FR - Jul 10, 04:35 UTCJul 10, 06:25 UTC1h 50m
2026-07-09 BEL2FM - Jul 9, 19:15 UTCJul 9, 21:10 UTC1h 55m
2026-07-09 BEL5DP - Jul 9, 15:25 UTCJul 9, 16:40 UTC1h 15m
2026-07-09 BEL4RE - Jul 9, 12:25 UTCJul 9, 14:10 UTC1h 45m
2026-07-09 BEL8CZ - Jul 9, 08:15 UTCJul 9, 10:30 UTC2h 15m
2026-07-09 BEL6NY - Jul 9, 04:30 UTCJul 9, 06:50 UTC2h 20m
2026-07-08 BEL6DN - Jul 8, 17:50 UTCJul 8, 20:10 UTC2h 20m
2026-07-08 BEL4AR BRU → ALC Jul 8, 14:35 UTCJul 8, 16:35 UTC2h 0m
2026-07-08 BEL6CT BCN → BRU Jul 8, 11:10 UTCJul 8, 12:50 UTC1h 40m
2026-07-08 BEL7FP - Jul 8, 08:15 UTCJul 8, 09:45 UTC1h 30m
2026-07-08 BEL2FR - Jul 8, 04:40 UTCJul 8, 06:40 UTC2h 0m
2026-07-07 BEL2FM BRU → MAD Jul 7, 20:15 UTCJul 7, 22:10 UTC1h 55m
2026-07-07 BEL9CJ FRA → BRU Jul 7, 17:50 UTCJul 7, 18:25 UTC35m
2026-07-07 BEL8UK BRU → FRA Jul 7, 15:40 UTCJul 7, 16:15 UTC35m
2026-07-07 BEL9SW MUC → BRU Jul 7, 13:15 UTCJul 7, 14:15 UTC1h 0m
2026-07-07 BEL7LF BRU → MUC Jul 7, 11:00 UTCJul 7, 12:00 UTC1h 0m
2026-07-07 BEL1PA VLC → BRU Jul 7, 07:35 UTCJul 7, 09:40 UTC2h 5m
2026-07-07 BEL7JV BRU → VLC Jul 7, 04:45 UTCJul 7, 06:30 UTC1h 45m
2026-07-06 BEL6DN ALC → BRU Jul 6, 18:05 UTCJul 6, 20:15 UTC2h 10m
2026-07-06 BEL4AR - Jul 6, 14:40 UTCJul 6, 16:40 UTC2h 0m
2026-07-06 BEL23U EDI → BRU Jul 6, 12:05 UTCJul 6, 13:10 UTC1h 5m
2026-07-06 BEL4OZ BRU → EDI Jul 6, 09:40 UTCJul 6, 10:55 UTC1h 15m
2026-07-06 BEL4TQ ZRH → BRU Jul 6, 07:10 UTCJul 6, 08:05 UTC55m
2026-07-06 BEL8HQ - Jul 6, 05:25 UTCJul 6, 06:10 UTC45m
2026-07-05 BEL74C BCN → BRU Jul 5, 13:40 UTCJul 5, 15:30 UTC1h 50m
2026-07-05 BEL9QH - Jul 5, 10:45 UTCJul 5, 12:15 UTC1h 30m
2026-07-04 BEL4JF DBV → BRU Jul 4, 16:35 UTCJul 4, 18:45 UTC2h 10m
2026-07-04 BEL8AM - Jul 4, 13:55 UTCJul 4, 15:35 UTC1h 40m
2026-07-04 BEL9FU - Jul 4, 10:45 UTCJul 4, 11:55 UTC1h 10m
2026-07-04 BEL5GR - Jul 4, 08:05 UTCJul 4, 09:05 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-SNO page for operator, model, and routing details .

Mode-S 44CDCF frequently asked

What is Mode-S code 44CDCF?
44CDCF is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-SNO.
Where is Mode-S 44CDCF registered?
Mode-S code 44CDCF is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CDCF broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44CDCF, octal 21146717, decimal 4,509,135.
What flights does 44CDCF operate?
Mode-S 44CDCF has broadcast 20 distinct callsigns, including BEL7AD, BEL5EN, BEL8CZ, BEL6NY, BEL2FR.