Apparatus

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sensors Mode-S transponder

47C225

ICAO 24-bit transponder address · allocated to Norway

Currently assigned to LN-OIB · SIKORSKY S-92 Helibus

Hex
47C225
Octal
21741045
Decimal
4,702,757
Country
NO
Tail
LN-OIB
Type
S92
No current signal · last broadcast 16h ago
Flights observed
9
Distinct callsigns
5
Country
NO
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 47C225.

Country allocation

The ICAO 24-bit address 47C225 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
NOR977 - 2 2026-04-13
NOR941 - 2 2026-04-13
NOR276 - 2 2026-04-13
NOR253 - 2 2026-04-14
NOR257 - 1 2026-04-14

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 NOR253 - Apr 14, 10:00 UTCApr 14, 10:10 UTC10m
2026-04-14 NOR253 - Apr 14, 08:10 UTCApr 14, 08:20 UTC10m
2026-04-14 NOR257 - Apr 14, 07:20 UTCApr 14, 07:30 UTC10m
2026-04-13 NOR276 - Apr 13, 15:45 UTCApr 13, 15:55 UTC10m
2026-04-13 NOR276 - Apr 13, 13:40 UTCApr 13, 13:50 UTC10m
2026-04-13 NOR977 - Apr 13, 12:15 UTCApr 13, 12:25 UTC10m
2026-04-13 NOR977 - Apr 13, 10:40 UTCApr 13, 10:50 UTC10m
2026-04-13 NOR941 - Apr 13, 09:25 UTCApr 13, 09:35 UTC10m
2026-04-13 NOR941 - Apr 13, 08:10 UTCApr 13, 08:20 UTC10m

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

Mode-S 47C225 frequently asked

What is Mode-S code 47C225?
47C225 is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to LN-OIB.
Where is Mode-S 47C225 registered?
Mode-S code 47C225 is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 47C225 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 47C225, octal 21741045, decimal 4,702,757.
What flights does 47C225 operate?
Mode-S 47C225 has broadcast 5 distinct callsigns, including NOR977, NOR941, NOR276, NOR253, NOR257.