Apparatus

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sensors Mode-S transponder

45CAB9

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-RUY · AIRBUS A-320

Hex
45CAB9
Octal
21345271
Decimal
4,573,881
Country
DK
Tail
OY-RUY
Type
A320
No current signal · last broadcast 1h ago
Flights observed
223
Distinct callsigns
20
Country
DK
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 45CAB9.

Country allocation

The ICAO 24-bit address 45CAB9 falls within the block assigned to Denmark (DK) by ICAO Annex 10, Volume III. Every aircraft registered in Denmark 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
UGD901 - 10 2026-05-10
NSZ3851 - 10 2026-06-28
NSZ3850 - 10 2026-06-28
NSZ3859 - 8 2026-06-26
NSZ3858 - 8 2026-06-26
LGL2G - 8 2026-07-16
LGL1E - 8 2026-07-16
NSZ8ZM - 7 2026-06-28
NSZ3864 - 7 2026-06-28
UGD711 - 6 2026-05-06
UGD710 - 5 2026-05-06
NSZ3881 - 5 2026-06-28
NSZ3880 - 5 2026-06-28
NSZ3869 Norwegian Air Sweden AOC 5 2026-06-27
NSZ3868 - 5 2026-06-27
NSZ3861 - 5 2026-06-26
NSZ3860 - 5 2026-06-26
LGL58A - 5 2026-07-15
LGL27LT - 5 2026-07-15
UGD900 - 4 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 LGL84BG BOJ → LUX Jul 17, 20:44 UTCJul 17, 23:20 UTC2h 35m
2026-07-17 LGL813 LUX → BOJ Jul 17, 17:09 UTCJul 17, 19:35 UTC2h 25m
2026-07-17 LGL3752 LIS → LUX Jul 17, 12:35 UTCJul 17, 14:44 UTC2h 10m
2026-07-17 LGL51P - Jul 17, 07:30 UTCJul 17, 10:10 UTC2h 40m
2026-07-16 LGL2G - Jul 16, 18:59 UTCJul 16, 21:10 UTC2h 10m
2026-07-16 LGL1E - Jul 16, 14:45 UTCJul 16, 17:35 UTC2h 50m
2026-07-16 LGL78FA FAO → LUX Jul 16, 08:30 UTCJul 16, 10:50 UTC2h 20m
2026-07-16 LGL787R LUX → FAO Jul 16, 04:45 UTCJul 16, 07:35 UTC2h 50m
2026-07-15 LGL2G - Jul 15, 18:40 UTCJul 15, 21:00 UTC2h 20m
2026-07-15 LGL1E - Jul 15, 14:35 UTCJul 15, 17:10 UTC2h 35m
2026-07-15 LGL58A - Jul 15, 09:35 UTCJul 15, 11:45 UTC2h 10m
2026-07-15 LGL27LT - Jul 15, 05:30 UTCJul 15, 07:25 UTC1h 55m
2026-07-14 LGL84BG - Jul 14, 17:25 UTCJul 14, 20:10 UTC2h 45m
2026-07-14 LGL813 - Jul 14, 14:00 UTCJul 14, 16:20 UTC2h 20m
2026-07-14 LGL3752 LIS → LUX Jul 14, 09:55 UTCJul 14, 12:05 UTC2h 10m
2026-07-14 LGL51P LUX → LIS Jul 14, 05:15 UTCJul 14, 08:10 UTC2h 55m
2026-07-13 LGL6EA - Jul 13, 14:05 UTCJul 13, 15:45 UTC1h 40m
2026-07-13 LGL21PM - Jul 13, 10:45 UTCJul 13, 12:25 UTC1h 40m
2026-07-13 LGL6MR - Jul 13, 07:50 UTCJul 13, 09:30 UTC1h 40m
2026-07-13 LGL6EP - Jul 13, 04:45 UTCJul 13, 06:35 UTC1h 50m
2026-07-12 LGL3754 LIS → LUX Jul 12, 18:55 UTCJul 12, 21:10 UTC2h 15m
2026-07-12 LGL3753 - Jul 12, 14:45 UTCJul 12, 17:20 UTC2h 35m
2026-07-12 LGL58A - Jul 12, 07:25 UTCJul 12, 09:35 UTC2h 10m
2026-07-12 LGL27LT - Jul 12, 04:20 UTCJul 12, 06:10 UTC1h 50m
2026-07-11 LGL2G - Jul 11, 18:20 UTCJul 11, 20:40 UTC2h 20m
2026-07-11 LGL1E - Jul 11, 14:40 UTCJul 11, 17:10 UTC2h 30m
2026-07-11 LGL98MT - Jul 11, 07:55 UTCJul 11, 10:20 UTC2h 25m
2026-07-11 LGL9L - Jul 11, 04:40 UTCJul 11, 06:50 UTC2h 10m
2026-07-10 LGL2G - Jul 10, 18:45 UTCJul 10, 21:00 UTC2h 15m
2026-07-10 LGL1E - Jul 10, 14:45 UTCJul 10, 17:10 UTC2h 25m
2026-07-10 LGL3752 LIS → LUX Jul 10, 11:15 UTCJul 10, 13:35 UTC2h 20m
2026-07-10 LGL51P - Jul 10, 07:15 UTCJul 10, 09:45 UTC2h 30m
2026-07-09 LGL2G - Jul 9, 18:25 UTCJul 9, 20:40 UTC2h 15m
2026-07-09 LGL1E - Jul 9, 14:35 UTCJul 9, 17:00 UTC2h 25m
2026-07-09 LGL78FA FAO → LUX Jul 9, 08:25 UTCJul 9, 10:50 UTC2h 25m
2026-07-09 LGL787R LUX → FAO Jul 9, 04:50 UTCJul 9, 07:25 UTC2h 35m
2026-07-08 LGL786 FAO → LUX Jul 8, 18:45 UTCJul 8, 21:10 UTC2h 25m
2026-07-08 LGL785 - Jul 8, 15:00 UTCJul 8, 17:40 UTC2h 40m
2026-07-08 LGL58A - Jul 8, 07:50 UTCJul 8, 10:15 UTC2h 25m
2026-07-08 LGL27LT - Jul 8, 04:45 UTCJul 8, 06:30 UTC1h 45m
2026-07-07 LGL84BG - Jul 7, 17:30 UTCJul 7, 20:10 UTC2h 40m
2026-07-07 LGL813 - Jul 7, 14:00 UTCJul 7, 16:25 UTC2h 25m
2026-07-07 LGL6MR - Jul 7, 07:25 UTCJul 7, 09:20 UTC1h 55m
2026-07-07 LGL6EP - Jul 7, 04:20 UTCJul 7, 05:55 UTC1h 35m
2026-07-06 LGL6EA - Jul 6, 13:40 UTCJul 6, 15:35 UTC1h 55m
2026-07-06 LGL21PM - Jul 6, 10:25 UTCJul 6, 12:00 UTC1h 35m
2026-07-06 LGL6MR - Jul 6, 07:15 UTCJul 6, 09:05 UTC1h 50m
2026-07-06 LGL6EP - Jul 6, 04:25 UTCJul 6, 06:00 UTC1h 35m
2026-07-05 LGL786 FAO → LUX Jul 5, 18:20 UTCJul 5, 20:55 UTC2h 35m
2026-07-05 LGL785 - Jul 5, 14:30 UTCJul 5, 17:05 UTC2h 35m

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 OY-RUY page for operator, model, and routing details .

Mode-S 45CAB9 frequently asked

What is Mode-S code 45CAB9?
45CAB9 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-RUY.
Where is Mode-S 45CAB9 registered?
Mode-S code 45CAB9 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45CAB9 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 45CAB9, octal 21345271, decimal 4,573,881.
What flights does 45CAB9 operate?
Mode-S 45CAB9 has broadcast 20 distinct callsigns, including UGD901, NSZ3851, NSZ3850, NSZ3859, NSZ3858.