Apparatus

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sensors Mode-S transponder

47812B

ICAO 24-bit transponder address · allocated to Norway

Currently assigned to 0277 · AGUSTA WESTLAND EH-101 Merlin

Hex
47812B
Octal
21700453
Decimal
4,686,123
Country
NO
Tail
0277
Type
EH10
No current signal · last broadcast 20h ago
Flights observed
47
Distinct callsigns
1
Country
NO
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 47812B.

Country allocation

The ICAO 24-bit address 47812B 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
DOLLY23 - 2 2026-05-22

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-07-09 - - Jul 9, 01:15 UTCJul 9, 01:30 UTC15m
2026-07-08 - - Jul 8, 21:55 UTCJul 8, 22:10 UTC15m
2026-07-08 - - Jul 8, 21:05 UTCJul 8, 21:15 UTC10m
2026-07-08 - - Jul 8, 19:50 UTCJul 8, 20:20 UTC30m
2026-07-08 - - Jul 8, 16:35 UTCJul 8, 16:55 UTC20m
2026-07-08 - - Jul 8, 15:00 UTCJul 8, 16:00 UTC1h 0m
2026-07-08 - - Jul 8, 13:30 UTCJul 8, 13:40 UTC10m
2026-07-08 - - Jul 8, 09:15 UTCJul 8, 10:10 UTC55m
2026-07-06 - - Jul 6, 11:35 UTCJul 6, 11:45 UTC10m
2026-07-05 - - Jul 5, 13:00 UTCJul 5, 13:15 UTC15m
2026-06-29 - - Jun 29, 21:24 UTCJun 29, 21:44 UTC20m
2026-06-29 - - Jun 29, 20:00 UTCJun 29, 20:44 UTC45m
2026-06-29 - - Jun 29, 11:29 UTCJun 29, 14:04 UTC2h 35m
2026-06-28 - - Jun 28, 11:59 UTCJun 28, 12:09 UTC10m
2026-06-27 - - Jun 27, 21:55 UTCJun 27, 22:49 UTC55m
2026-06-27 - - Jun 27, 17:44 UTCJun 27, 17:59 UTC15m
2026-06-27 - - Jun 27, 16:10 UTCJun 27, 16:35 UTC25m
2026-06-26 - - Jun 26, 23:30 UTCJun 27, 00:34 UTC1h 5m
2026-06-26 - - Jun 26, 15:10 UTCJun 26, 16:00 UTC50m
2026-06-26 - - Jun 26, 12:55 UTCJun 26, 13:10 UTC15m
2026-06-24 - - Jun 24, 23:50 UTCJun 25, 00:05 UTC15m
2026-06-24 - - Jun 24, 22:45 UTCJun 24, 22:55 UTC10m
2026-06-24 - - Jun 24, 13:00 UTCJun 24, 13:40 UTC40m
2026-06-14 - - Jun 14, 17:00 UTCJun 14, 17:45 UTC45m
2026-06-14 - - Jun 14, 12:15 UTCJun 14, 12:40 UTC25m
2026-06-14 - - Jun 14, 08:10 UTCJun 14, 08:45 UTC35m
2026-06-13 - - Jun 13, 00:45 UTCJun 13, 01:25 UTC40m
2026-06-12 - - Jun 12, 23:20 UTCJun 12, 23:45 UTC25m
2026-06-12 - - Jun 12, 17:30 UTCJun 12, 18:35 UTC1h 5m
2026-06-12 - - Jun 12, 13:35 UTCJun 12, 15:15 UTC1h 40m
2026-06-10 - - Jun 10, 10:15 UTCJun 10, 11:50 UTC1h 35m
2026-06-09 - - Jun 9, 11:25 UTCJun 9, 13:20 UTC1h 55m
2026-06-08 - - Jun 8, 19:15 UTCJun 8, 21:05 UTC1h 50m
2026-06-08 - - Jun 8, 11:15 UTCJun 8, 12:40 UTC1h 25m
2026-06-06 - - Jun 6, 08:45 UTCJun 6, 08:55 UTC10m
2026-06-04 - - Jun 4, 09:35 UTCJun 4, 12:35 UTC3h 0m
2026-06-03 - - Jun 3, 09:05 UTCJun 3, 10:45 UTC1h 40m
2026-06-02 - - Jun 2, 12:35 UTCJun 2, 13:15 UTC40m
2026-05-27 - - May 27, 14:45 UTCMay 27, 15:10 UTC25m
2026-05-27 - - May 27, 13:45 UTCMay 27, 14:10 UTC25m
2026-05-27 - - May 27, 12:10 UTCMay 27, 12:35 UTC25m
2026-05-27 - - May 27, 11:05 UTCMay 27, 11:25 UTC20m
2026-05-25 - - May 25, 15:30 UTCMay 25, 15:50 UTC20m
2026-05-25 - - May 25, 13:30 UTCMay 25, 13:50 UTC20m
2026-05-23 - - May 23, 11:00 UTCMay 23, 11:45 UTC45m
2026-05-22 DOLLY23 - May 22, 12:30 UTCMay 22, 13:00 UTC30m
2026-05-21 DOLLY23 SVG → SVG May 21, 14:30 UTCMay 21, 15:00 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 0277 page for operator, model, and routing details .

Mode-S 47812B frequently asked

What is Mode-S code 47812B?
47812B is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to 0277.
Where is Mode-S 47812B registered?
Mode-S code 47812B is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 47812B broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 47812B, octal 21700453, decimal 4,686,123.
What flights does 47812B operate?
Mode-S 47812B has broadcast 1 distinct callsign, including DOLLY23.