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sensors Mode-S transponder

47839C

ICAO 24-bit transponder address · allocated to Norway

Currently assigned to LN-OOB · AIRBUS HELICOPTERS EC-145

Hex
47839C
Octal
21701634
Decimal
4,686,748
Country
NO
Tail
LN-OOB
Type
EC45
No current signal · last broadcast 18h ago
Flights observed
229
Distinct callsigns
5
Country
NO
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 47839C.

Country allocation

The ICAO 24-bit address 47839C 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 5 distinct

Callsign Airline Flights Last seen
DOC14 - 220 2026-07-26
DOC71 - 5 2026-04-28
DOC12 - 2 2026-04-29
DOC62 - 1 2026-04-26
DOC60 - 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DOC14 - Jul 26, 10:05 UTCJul 26, 10:35 UTC30m
2026-07-23 DOC14 - Jul 23, 18:10 UTCJul 23, 19:25 UTC1h 15m
2026-07-23 DOC14 - Jul 23, 16:45 UTCJul 23, 17:45 UTC1h 0m
2026-07-23 DOC14 - Jul 23, 13:20 UTCJul 23, 13:30 UTC10m
2026-07-22 DOC14 - Jul 22, 18:50 UTCJul 22, 19:35 UTC45m
2026-07-22 DOC14 - Jul 22, 11:15 UTCJul 22, 12:15 UTC1h 0m
2026-07-21 DOC14 - Jul 21, 15:35 UTCJul 21, 15:50 UTC15m
2026-07-21 DOC14 - Jul 21, 13:45 UTCJul 21, 14:55 UTC1h 10m
2026-07-21 DOC14 - Jul 21, 11:00 UTCJul 21, 11:55 UTC55m
2026-07-21 DOC14 - Jul 21, 09:50 UTCJul 21, 10:15 UTC25m
2026-07-20 DOC14 - Jul 20, 01:45 UTCJul 20, 02:20 UTC35m
2026-07-19 DOC14 - Jul 19, 23:45 UTCJul 19, 23:55 UTC10m
2026-07-19 DOC14 - Jul 19, 20:30 UTCJul 19, 21:00 UTC30m
2026-07-19 DOC14 - Jul 19, 14:50 UTCJul 19, 15:35 UTC45m
2026-07-19 DOC14 - Jul 19, 08:50 UTCJul 19, 09:40 UTC50m
2026-07-19 DOC14 - Jul 19, 07:15 UTCJul 19, 08:20 UTC1h 5m
2026-07-18 DOC14 - Jul 18, 17:05 UTCJul 18, 18:00 UTC55m
2026-07-18 DOC14 - Jul 18, 09:50 UTCJul 18, 10:35 UTC45m
2026-07-18 DOC14 - Jul 18, 09:35 UTCJul 18, 09:40 UTC5m
2026-07-18 DOC14 - Jul 18, 07:15 UTCJul 18, 09:10 UTC1h 55m
2026-07-18 DOC14 - Jul 18, 00:15 UTCJul 18, 01:15 UTC1h 0m
2026-07-17 DOC14 - Jul 17, 22:25 UTCJul 17, 23:35 UTC1h 10m
2026-07-17 DOC14 - Jul 17, 21:30 UTCJul 17, 21:44 UTC15m
2026-07-17 DOC14 - Jul 17, 09:04 UTCJul 17, 10:15 UTC1h 10m
2026-07-17 DOC14 - Jul 17, 07:14 UTCJul 17, 08:49 UTC1h 35m
2026-07-16 DOC14 - Jul 16, 12:55 UTCJul 16, 13:10 UTC15m
2026-07-16 DOC14 - Jul 16, 11:45 UTCJul 16, 12:00 UTC15m
2026-07-15 DOC14 - Jul 15, 21:45 UTCJul 15, 22:00 UTC15m
2026-07-15 DOC14 - Jul 15, 20:55 UTCJul 15, 21:10 UTC15m
2026-07-15 DOC14 - Jul 15, 18:10 UTCJul 15, 19:00 UTC50m
2026-07-15 DOC14 - Jul 15, 17:10 UTCJul 15, 17:35 UTC25m
2026-07-15 DOC14 - Jul 15, 13:40 UTCJul 15, 13:55 UTC15m
2026-07-15 DOC14 - Jul 15, 12:00 UTCJul 15, 12:15 UTC15m
2026-07-15 DOC14 - Jul 15, 02:00 UTCJul 15, 02:20 UTC20m
2026-07-14 DOC14 - Jul 14, 17:05 UTCJul 14, 17:45 UTC40m
2026-07-14 DOC14 - Jul 14, 16:10 UTCJul 14, 16:30 UTC20m
2026-07-12 DOC14 - Jul 12, 16:55 UTCJul 12, 17:45 UTC50m
2026-07-12 DOC14 - Jul 12, 15:10 UTCJul 12, 16:05 UTC55m
2026-07-12 DOC14 - Jul 12, 13:55 UTCJul 12, 14:55 UTC1h 0m
2026-07-12 DOC14 - Jul 12, 13:01 UTCJul 12, 13:10 UTC10m
2026-07-12 DOC14 - Jul 12, 08:05 UTCJul 12, 08:50 UTC45m
2026-07-12 DOC14 - Jul 12, 07:05 UTCJul 12, 07:35 UTC30m
2026-07-11 DOC14 - Jul 11, 17:25 UTCJul 11, 17:45 UTC20m
2026-07-11 DOC14 - Jul 11, 13:25 UTCJul 11, 14:55 UTC1h 30m
2026-07-10 DOC14 - Jul 10, 19:30 UTCJul 10, 21:15 UTC1h 45m
2026-07-10 DOC14 - Jul 10, 18:10 UTCJul 10, 19:00 UTC50m
2026-07-10 DOC14 - Jul 10, 16:30 UTCJul 10, 17:30 UTC1h 0m
2026-07-10 DOC14 - Jul 10, 15:25 UTCJul 10, 15:40 UTC15m
2026-07-10 DOC14 - Jul 10, 13:55 UTCJul 10, 14:45 UTC50m
2026-07-10 DOC14 - Jul 10, 09:45 UTCJul 10, 11:05 UTC1h 20m

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-OOB page for operator, model, and routing details .

Mode-S 47839C frequently asked

What is Mode-S code 47839C?
47839C is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to LN-OOB.
Where is Mode-S 47839C registered?
Mode-S code 47839C is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 47839C broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 47839C, octal 21701634, decimal 4,686,748.
What flights does 47839C operate?
Mode-S 47839C has broadcast 5 distinct callsigns, including DOC14, DOC71, DOC12, DOC62, DOC60.