Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

478DE3

ICAO 24-bit transponder address · allocated to Norway

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

Hex
478DE3
Octal
21706743
Decimal
4,689,379
Country
NO
Tail
LN-OTQ
Type
EC45
Broadcasting now · callsign DOC03 · 2,875 ft
Flights observed
26
Distinct callsigns
1
Country
NO
Last broadcast
1h ago

Current position

478DE3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 478DE3 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
DOC03 - 26 2026-04-18

Recent flights last 26

DateFlightRouteTakeoffLandingDuration
2026-04-18 DOC03 - Apr 18, 17:45 UTCApr 18, 18:05 UTC20m
2026-04-18 DOC03 BLL → BLL Apr 18, 16:10 UTCApr 18, 16:35 UTC25m
2026-04-18 DOC03 - Apr 18, 14:05 UTCApr 18, 14:25 UTC20m
2026-04-18 DOC03 - Apr 18, 13:05 UTCApr 18, 13:25 UTC20m
2026-04-18 DOC03 - Apr 18, 10:45 UTCApr 18, 11:15 UTC30m
2026-04-18 DOC03 - Apr 18, 07:50 UTCApr 18, 08:10 UTC20m
2026-04-18 DOC03 - Apr 18, 06:25 UTCApr 18, 07:20 UTC55m
2026-04-17 DOC03 - Apr 17, 20:30 UTCApr 17, 20:40 UTC10m
2026-04-16 DOC03 - Apr 16, 19:30 UTCApr 16, 19:55 UTC25m
2026-04-16 DOC03 - Apr 16, 17:50 UTCApr 16, 19:05 UTC1h 15m
2026-04-16 DOC03 - Apr 16, 13:35 UTCApr 16, 14:00 UTC25m
2026-04-16 DOC03 - Apr 16, 12:39 UTCApr 16, 13:00 UTC20m
2026-04-16 DOC03 - Apr 16, 11:25 UTCApr 16, 11:35 UTC10m
2026-04-16 DOC03 - Apr 16, 10:45 UTCApr 16, 10:59 UTC15m
2026-04-16 DOC03 - Apr 16, 09:50 UTCApr 16, 10:14 UTC25m
2026-04-16 DOC03 - Apr 16, 08:04 UTCApr 16, 09:05 UTC1h 0m
2026-04-16 DOC03 - Apr 16, 07:15 UTCApr 16, 07:34 UTC20m
2026-04-16 DOC03 - Apr 16, 06:40 UTCApr 16, 07:00 UTC20m
2026-04-15 DOC03 - Apr 15, 21:50 UTCApr 15, 22:35 UTC45m
2026-04-15 DOC03 - Apr 15, 13:10 UTCApr 15, 13:35 UTC25m
2026-04-15 DOC03 - Apr 15, 11:50 UTCApr 15, 12:45 UTC55m
2026-04-15 DOC03 - Apr 15, 10:45 UTCApr 15, 10:55 UTC10m
2026-04-14 DOC03 - Apr 14, 18:05 UTCApr 14, 18:35 UTC30m
2026-04-14 DOC03 - Apr 14, 15:05 UTCApr 14, 16:00 UTC55m
2026-04-14 DOC03 - Apr 14, 14:30 UTCApr 14, 14:45 UTC15m
2026-04-14 DOC03 - Apr 14, 12:10 UTCApr 14, 12:40 UTC30m

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

Mode-S 478DE3 frequently asked

What is Mode-S code 478DE3?
478DE3 is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to LN-OTQ.
Where is Mode-S 478DE3 registered?
Mode-S code 478DE3 is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 478DE3 broadcasting right now?
Yes. Mode-S 478DE3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 478DE3, octal 21706743, decimal 4,689,379.
What flights does 478DE3 operate?
Mode-S 478DE3 has broadcast 1 distinct callsign, including DOC03.