Apparatus

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sensors Mode-S transponder

47BDEA

ICAO 24-bit transponder address · allocated to Norway

Currently assigned to LN-OUN · AIRBUS HELICOPTERS EC-135/635

Hex
47BDEA
Octal
21736752
Decimal
4,701,674
Country
NO
Tail
LN-OUN
Type
EC35
No current signal · last broadcast 21h ago
Flights observed
8
Distinct callsigns
1
Country
NO
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 47BDEA.

Country allocation

The ICAO 24-bit address 47BDEA falls within the block assigned to Norway (NO) by ICAO Annex 10, Volume III. Every aircraft registered in Norway 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 1 distinct

Callsign Airline Flights Last seen
DOC05 - 8 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 DOC05 - Apr 14, 09:30 UTCApr 14, 10:00 UTC30m
2026-04-13 DOC05 - Apr 13, 15:55 UTCApr 13, 16:05 UTC10m
2026-04-13 DOC05 - Apr 13, 15:10 UTCApr 13, 16:05 UTC55m
2026-04-13 DOC05 - Apr 13, 14:25 UTCApr 13, 14:35 UTC10m
2026-04-13 DOC05 - Apr 13, 12:10 UTCApr 13, 12:20 UTC10m
2026-04-13 DOC05 - Apr 13, 10:50 UTCApr 13, 11:35 UTC45m
2026-04-13 DOC05 - Apr 13, 08:40 UTCApr 13, 09:10 UTC30m
2026-04-12 DOC05 - Apr 12, 18:00 UTCApr 12, 19:05 UTC1h 5m

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 LN-OUN page for operator, model, and routing details .

Mode-S 47BDEA frequently asked

What is Mode-S code 47BDEA?
47BDEA is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to LN-OUN.
Where is Mode-S 47BDEA registered?
Mode-S code 47BDEA is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 47BDEA broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 47BDEA, octal 21736752, decimal 4,701,674.
What flights does 47BDEA operate?
Mode-S 47BDEA has broadcast 1 distinct callsign, including DOC05.