Apparatus

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sensors Mode-S transponder

44CDD0

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-SNP · AIRBUS A-320

Hex
44CDD0
Octal
21146720
Decimal
4,509,136
Country
BE
Tail
OO-SNP
Type
A320
No current signal · last broadcast 1h ago
Flights observed
433
Distinct callsigns
20
Country
BE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 44CDD0.

Country allocation

The ICAO 24-bit address 44CDD0 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
BEL7LW - 9 2026-06-25
BEL3CP Brussels Airlines 9 2026-06-25
BEL9FU - 8 2026-06-22
BEL5GR - 8 2026-06-22
BEL3SG - 8 2026-06-22
BEL8KA - 6 2026-06-22
BEL3WF Brussels Airlines 6 2026-06-08
BEL1VC Brussels Airlines 6 2026-06-08
BEL9DN - 5 2026-07-10
BEL8WD - 5 2026-06-30
BEL8QB - 5 2026-07-10
BEL8HW - 5 2026-07-11
BEL8CZ - 5 2026-06-15
BEL6VP Brussels Airlines 5 2026-06-03
BEL6TC - 5 2026-07-14
BEL5DP Brussels Airlines 5 2026-06-28
BEL4UG - 5 2026-06-30
BEL4RE - 5 2026-06-28
BEL3UC - 5 2026-07-10
BEL1UF - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BEL3DQ BRU → FRA Jul 14, 09:00 UTCJul 14, 09:30 UTC30m
2026-07-14 BEL6TC - Jul 14, 06:50 UTCJul 14, 07:20 UTC30m
2026-07-14 BEL3ZY BRU → CDG Jul 14, 05:05 UTCJul 14, 05:50 UTC45m
2026-07-13 BEL4XD - Jul 13, 16:35 UTCJul 13, 18:50 UTC2h 15m
2026-07-13 BEL5GW BRU → AHU Jul 13, 13:00 UTCJul 13, 15:35 UTC2h 35m
2026-07-13 BEL6HF - Jul 13, 08:55 UTCJul 13, 10:15 UTC1h 20m
2026-07-13 BEL5CG BRU → NCE Jul 13, 05:50 UTCJul 13, 07:25 UTC1h 35m
2026-07-12 BEL5WC - Jul 12, 20:20 UTCJul 12, 22:50 UTC2h 30m
2026-07-12 BEL3KH - Jul 12, 16:50 UTCJul 12, 19:01 UTC2h 10m
2026-07-12 BEL37L - Jul 12, 11:20 UTCJul 12, 14:35 UTC3h 15m
2026-07-12 BEL4EW - Jul 12, 05:35 UTCJul 12, 09:20 UTC3h 45m
2026-07-11 OOSNP BRU → BRU Jul 11, 08:40 UTCJul 11, 08:45 UTC5m
2026-07-11 BEL8HW - Jul 11, 05:15 UTCJul 11, 06:45 UTC1h 30m
2026-07-10 BEL3UC BRU → GOT Jul 10, 19:40 UTCJul 10, 21:00 UTC1h 20m
2026-07-10 BEL9CJ FRA → BRU Jul 10, 17:50 UTCJul 10, 18:35 UTC45m
2026-07-10 BEL8UK BRU → FRA Jul 10, 15:45 UTCJul 10, 16:20 UTC35m
2026-07-10 BEL5VA - Jul 10, 12:10 UTCJul 10, 14:05 UTC1h 55m
2026-07-10 BEL7VB - Jul 10, 09:05 UTCJul 10, 10:55 UTC1h 50m
2026-07-10 BEL9DN FRA → BRU Jul 10, 06:45 UTCJul 10, 07:25 UTC40m
2026-07-10 BEL8QB BRU → FRA Jul 10, 04:45 UTCJul 10, 05:20 UTC35m
2026-07-09 BEL75Y - Jul 9, 08:45 UTCJul 9, 12:20 UTC3h 35m
2026-07-09 BEL1TE - Jul 9, 04:15 UTCJul 9, 07:15 UTC3h 0m
2026-07-08 BEL4VL - Jul 8, 19:05 UTCJul 8, 20:55 UTC1h 50m
2026-07-08 BEL9KT - Jul 8, 15:50 UTCJul 8, 17:40 UTC1h 50m
2026-07-08 BEL9UR - Jul 8, 12:10 UTCJul 8, 13:35 UTC1h 25m
2026-07-08 BEL9KU - Jul 8, 09:25 UTCJul 8, 10:55 UTC1h 30m
2026-07-08 BEL7YB - Jul 8, 07:15 UTCJul 8, 07:50 UTC35m
2026-07-08 BEL3BP - Jul 8, 05:30 UTCJul 8, 06:05 UTC35m
2026-07-07 BEL3LI - Jul 7, 18:10 UTCJul 7, 22:00 UTC3h 50m
2026-07-07 BEL7NO - Jul 7, 16:45 UTCJul 7, 17:00 UTC15m
2026-07-07 BEL7NO - Jul 7, 13:10 UTCJul 7, 15:55 UTC2h 45m
2026-07-07 BEL4KY FRA → BRU Jul 7, 10:40 UTCJul 7, 11:15 UTC35m
2026-07-07 BEL3DQ - Jul 7, 08:50 UTCJul 7, 09:30 UTC40m
2026-07-07 BEL6TC - Jul 7, 06:55 UTCJul 7, 07:30 UTC35m
2026-07-07 BEL3ZY BRU → CDG Jul 7, 05:00 UTCJul 7, 05:35 UTC35m
2026-07-06 BEL72R GVA → BRU Jul 6, 19:30 UTCJul 6, 20:30 UTC1h 0m
2026-07-06 BEL4GV - Jul 6, 17:35 UTCJul 6, 18:35 UTC1h 0m
2026-07-06 BEL6VF NCE → BRU Jul 6, 15:00 UTCJul 6, 16:20 UTC1h 20m
2026-07-06 BEL8NY - Jul 6, 12:15 UTCJul 6, 13:50 UTC1h 35m
2026-07-06 BEL9HR - Jul 6, 09:40 UTCJul 6, 10:35 UTC55m
2026-07-06 BEL1UF - Jul 6, 07:45 UTCJul 6, 08:40 UTC55m
2026-07-05 BEL9LT BRU → PRG Jul 5, 21:00 UTCJul 5, 22:20 UTC1h 20m
2026-07-05 BEL1YL BRU → NCE Jul 5, 18:10 UTCJul 5, 19:35 UTC1h 25m
2026-07-05 BEL2YK - Jul 5, 14:10 UTCJul 5, 16:35 UTC2h 25m
2026-07-05 BEL6EP - Jul 5, 10:45 UTCJul 5, 13:00 UTC2h 15m
2026-07-05 BEL7YB CDG → BRU Jul 5, 08:20 UTCJul 5, 08:50 UTC30m
2026-07-05 BEL3BP BRU → CDG Jul 5, 06:10 UTCJul 5, 06:40 UTC30m
2026-07-04 BEL6AK MUC → BRU Jul 4, 19:55 UTCJul 4, 21:00 UTC1h 5m
2026-07-04 BEL4HU - Jul 4, 17:45 UTCJul 4, 18:45 UTC1h 0m
2026-07-04 BEL4AA - Jul 4, 13:15 UTCJul 4, 16:30 UTC3h 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-SNP page for operator, model, and routing details .

Mode-S 44CDD0 frequently asked

What is Mode-S code 44CDD0?
44CDD0 is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-SNP.
Where is Mode-S 44CDD0 registered?
Mode-S code 44CDD0 is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44CDD0 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 44CDD0, octal 21146720, decimal 4,509,136.
What flights does 44CDD0 operate?
Mode-S 44CDD0 has broadcast 20 distinct callsigns, including BEL7LW, BEL3CP, BEL9FU, BEL5GR, BEL3SG.