Apparatus

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sensors Mode-S transponder

478129

ICAO 24-bit transponder address · allocated to Norway

Currently assigned to 0275 · AGUSTA WESTLAND EH-101 Merlin

Hex
478129
Octal
21700451
Decimal
4,686,121
Country
NO
Tail
0275
Type
EH10
No current signal · last broadcast 1d ago
Flights observed
45
Distinct callsigns
0
Country
NO
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 478129.

Country allocation

The ICAO 24-bit address 478129 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.

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-06-01 - - Jun 1, 11:30 UTCJun 1, 11:55 UTC25m
2026-06-01 - - Jun 1, 09:45 UTCJun 1, 10:30 UTC45m
2026-05-31 - - May 31, 22:30 UTCMay 31, 23:05 UTC35m
2026-05-31 - - May 31, 19:50 UTCMay 31, 20:15 UTC25m
2026-05-31 - - May 31, 14:20 UTCMay 31, 14:30 UTC10m
2026-05-31 - - May 31, 13:50 UTCMay 31, 14:00 UTC10m
2026-05-30 - - May 30, 16:20 UTCMay 30, 17:10 UTC50m
2026-05-30 - - May 30, 09:40 UTCMay 30, 10:15 UTC35m
2026-05-29 - - May 29, 18:45 UTCMay 29, 19:45 UTC1h 0m
2026-05-29 - - May 29, 15:40 UTCMay 29, 16:20 UTC40m
2026-05-28 - - May 28, 16:50 UTCMay 28, 17:00 UTC10m
2026-05-28 - - May 28, 13:50 UTCMay 28, 14:00 UTC10m
2026-05-20 - - May 20, 04:50 UTCMay 20, 05:10 UTC20m
2026-05-20 - - May 20, 03:10 UTCMay 20, 04:15 UTC1h 5m
2026-05-19 - - May 19, 18:10 UTCMay 19, 18:30 UTC20m
2026-05-19 - - May 19, 16:10 UTCMay 19, 17:20 UTC1h 10m
2026-05-19 - - May 19, 11:40 UTCMay 19, 11:50 UTC10m
2026-05-18 - - May 18, 12:15 UTCMay 18, 14:00 UTC1h 45m
2026-05-17 - - May 17, 15:40 UTCMay 17, 15:50 UTC10m
2026-05-11 - - May 11, 00:19 UTCMay 11, 00:40 UTC20m
2026-05-10 - - May 10, 23:29 UTCMay 10, 23:44 UTC15m
2026-05-10 - - May 10, 10:49 UTCMay 10, 11:25 UTC35m
2026-05-08 - - May 8, 13:35 UTCMay 8, 14:40 UTC1h 5m
2026-05-07 - - May 7, 21:30 UTCMay 7, 21:55 UTC25m
2026-05-07 - - May 7, 20:05 UTCMay 7, 20:30 UTC25m
2026-05-07 - - May 7, 15:20 UTCMay 7, 15:55 UTC35m
2026-05-07 - - May 7, 11:10 UTCMay 7, 13:20 UTC2h 10m
2026-05-07 - - May 7, 06:35 UTCMay 7, 06:50 UTC15m
2026-05-06 - - May 6, 19:30 UTCMay 6, 19:50 UTC20m
2026-05-06 - - May 6, 14:05 UTCMay 6, 14:25 UTC20m
2026-05-06 - - May 6, 11:35 UTCMay 6, 12:50 UTC1h 15m
2026-05-05 - - May 5, 15:05 UTCMay 5, 15:20 UTC15m
2026-05-05 - - May 5, 11:50 UTCMay 5, 12:55 UTC1h 5m
2026-05-05 - - May 5, 06:40 UTCMay 5, 07:00 UTC20m
2026-05-05 - - May 5, 04:50 UTCMay 5, 05:50 UTC1h 0m
2026-04-23 - - Apr 23, 10:30 UTCApr 23, 10:55 UTC25m
2026-04-19 - - Apr 19, 21:45 UTCApr 19, 21:55 UTC10m
2026-04-16 - - Apr 16, 16:50 UTCApr 16, 17:00 UTC10m
2026-04-15 - - Apr 15, 13:01 UTCApr 15, 13:20 UTC20m
2026-04-15 - - Apr 15, 12:40 UTCApr 15, 12:55 UTC15m
2026-04-14 - - Apr 14, 23:10 UTCApr 14, 23:40 UTC30m
2026-04-14 - - Apr 14, 21:40 UTCApr 14, 22:00 UTC20m
2026-04-14 - - Apr 14, 20:55 UTCApr 14, 21:05 UTC10m
2026-04-14 - - Apr 14, 20:40 UTCApr 14, 20:50 UTC10m
2026-04-14 - - Apr 14, 19:10 UTCApr 14, 19:30 UTC20m

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 0275 page for operator, model, and routing details .

Mode-S 478129 frequently asked

What is Mode-S code 478129?
478129 is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to 0275.
Where is Mode-S 478129 registered?
Mode-S code 478129 is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 478129 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 478129, octal 21700451, decimal 4,686,121.