Apparatus

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sensors Mode-S transponder

478057

ICAO 24-bit transponder address · allocated to Norway

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

Hex
478057
Octal
21700127
Decimal
4,685,911
Country
NO
Tail
LN-OQU
Type
S92
No current signal · last broadcast 15d ago
Flights observed
357
Distinct callsigns
20
Country
NO
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S 478057.

Country allocation

The ICAO 24-bit address 478057 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 20 distinct

Callsign Airline Flights Last seen
HKS272 - 29 2026-07-23
HKS246 - 22 2026-07-21
HKS242 - 22 2026-07-20
HKS944 - 19 2026-07-23
HKS740 - 18 2026-07-06
HKS245 - 18 2026-07-06
HKS700 - 16 2026-07-21
HKS244 - 16 2026-07-23
HKS940 - 15 2026-07-24
HKS730 - 15 2026-06-28
HKS232 - 13 2026-07-21
HKS943 - 12 2026-07-21
HKS942 - 12 2026-07-14
HKS247 - 12 2026-07-24
HKS977 - 10 2026-07-10
HKS947 - 8 2026-07-20
HKS264 - 8 2026-07-22
HKS253 - 8 2026-07-09
HKS243 - 7 2026-06-29
HKS252 - 6 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 HKS55T - Jul 25, 09:10 UTCJul 25, 09:45 UTC35m
2026-07-24 HKS940 - Jul 24, 15:10 UTCJul 24, 15:35 UTC25m
2026-07-24 HKS940 - Jul 24, 14:10 UTCJul 24, 14:35 UTC25m
2026-07-24 HKS247 - Jul 24, 12:10 UTCJul 24, 12:50 UTC40m
2026-07-24 HKS247 - Jul 24, 10:40 UTCJul 24, 11:20 UTC40m
2026-07-23 HKS944 BGO → BGO Jul 23, 11:20 UTCJul 23, 12:50 UTC1h 30m
2026-07-23 HKS244 - Jul 23, 09:25 UTCJul 23, 09:55 UTC30m
2026-07-23 HKS244 - Jul 23, 08:10 UTCJul 23, 08:40 UTC30m
2026-07-23 HKS272 - Jul 23, 06:05 UTCJul 23, 06:45 UTC40m
2026-07-23 HKS272 - Jul 23, 04:55 UTCJul 23, 05:30 UTC35m
2026-07-22 HKS264 - Jul 22, 14:15 UTCJul 22, 14:30 UTC15m
2026-07-22 HKS272 - Jul 22, 12:20 UTCJul 22, 12:50 UTC30m
2026-07-22 HKS272 - Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-22 HKS251 - Jul 22, 05:05 UTCJul 22, 05:25 UTC20m
2026-07-21 HKS943 - Jul 21, 14:40 UTCJul 21, 15:05 UTC25m
2026-07-21 HKS943 - Jul 21, 13:35 UTCJul 21, 13:55 UTC20m
2026-07-21 HKS246 - Jul 21, 11:35 UTCJul 21, 12:00 UTC25m
2026-07-21 HKS246 - Jul 21, 10:15 UTCJul 21, 10:45 UTC30m
2026-07-21 HKS232 BGO → BGO Jul 21, 08:00 UTCJul 21, 09:05 UTC1h 5m
2026-07-21 HKS700 - Jul 21, 06:55 UTCJul 21, 07:05 UTC10m
2026-07-21 HKS700 - Jul 21, 05:15 UTCJul 21, 05:40 UTC25m
2026-07-20 HKS947 BGO → BGO Jul 20, 13:50 UTCJul 20, 15:35 UTC1h 45m
2026-07-20 HKS242 - Jul 20, 12:05 UTCJul 20, 12:40 UTC35m
2026-07-20 HKS242 - Jul 20, 10:45 UTCJul 20, 11:35 UTC50m
2026-07-15 HKS251 - Jul 15, 07:50 UTCJul 15, 10:05 UTC2h 15m
2026-07-14 HKS255 - Jul 14, 15:35 UTCJul 14, 16:05 UTC30m
2026-07-14 HKS255 - Jul 14, 13:55 UTCJul 14, 14:40 UTC45m
2026-07-14 HKS942 - Jul 14, 09:50 UTCJul 14, 10:10 UTC20m
2026-07-14 HKS942 - Jul 14, 08:35 UTCJul 14, 09:05 UTC30m
2026-07-10 HKS977 - Jul 10, 18:20 UTCJul 10, 18:35 UTC15m
2026-07-10 HKS977 - Jul 10, 16:50 UTCJul 10, 17:20 UTC30m
2026-07-10 HKS247 - Jul 10, 06:20 UTCJul 10, 06:50 UTC30m
2026-07-10 HKS247 - Jul 10, 05:05 UTCJul 10, 05:35 UTC30m
2026-07-09 HKS253 - Jul 9, 14:35 UTCJul 9, 15:15 UTC40m
2026-07-09 HKS253 - Jul 9, 13:10 UTCJul 9, 13:40 UTC30m
2026-07-09 HKS940 BGO → BGO Jul 9, 10:25 UTCJul 9, 11:45 UTC1h 20m
2026-07-09 HKS930 - Jul 9, 07:40 UTCJul 9, 08:50 UTC1h 10m
2026-07-09 HKS272 - Jul 9, 05:05 UTCJul 9, 06:40 UTC1h 35m
2026-07-08 HKS944 - Jul 8, 18:20 UTCJul 8, 18:45 UTC25m
2026-07-08 HKS944 - Jul 8, 17:25 UTCJul 8, 17:45 UTC20m
2026-07-08 HKS264 - Jul 8, 14:20 UTCJul 8, 14:35 UTC15m
2026-07-08 HKS272 - Jul 8, 11:00 UTCJul 8, 12:35 UTC1h 35m
2026-07-07 HKS943 - Jul 7, 14:25 UTCJul 7, 14:45 UTC20m
2026-07-07 HKS943 - Jul 7, 13:20 UTCJul 7, 13:45 UTC25m
2026-07-07 HKS246 - Jul 7, 11:35 UTCJul 7, 12:10 UTC35m
2026-07-07 HKS246 - Jul 7, 10:20 UTCJul 7, 10:50 UTC30m
2026-07-07 HKS232 BGO → BGO Jul 7, 08:05 UTCJul 7, 09:05 UTC1h 0m
2026-07-07 HKS700 - Jul 7, 06:50 UTCJul 7, 07:05 UTC15m
2026-07-07 HKS700 - Jul 7, 05:20 UTCJul 7, 05:50 UTC30m
2026-07-06 HKS947 - Jul 6, 14:50 UTCJul 6, 15:10 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 LN-OQU page for operator, model, and routing details .

Mode-S 478057 frequently asked

What is Mode-S code 478057?
478057 is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to LN-OQU.
Where is Mode-S 478057 registered?
Mode-S code 478057 is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 478057 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 478057, octal 21700127, decimal 4,685,911.
What flights does 478057 operate?
Mode-S 478057 has broadcast 20 distinct callsigns, including HKS272, HKS246, HKS242, HKS944, HKS740.