sensors Mode-S transponder

479173

ICAO 24-bit transponder address · allocated to Norway

Currently assigned to LN-TTB · PIPER PA-31-300/310/325/350/425

Hex
479173
Octal
21710563
Decimal
4,690,291
Country
NO
Tail
LN-TTB
Type
PA31
No current signal · last broadcast 22h ago
Flights observed
6
Distinct callsigns
1
Country
NO
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S 479173.

Country allocation

The ICAO 24-bit address 479173 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
LED5 - 6 2026-04-14

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 LED5 - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 LED5 - Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 LED5 - Apr 14, 06:20 UTCApr 14, 07:10 UTC50m
2026-04-13 LED5 - Apr 13, 08:20 UTCApr 13, 09:40 UTC1h 20m
2026-04-13 LED5 - Apr 13, 07:55 UTCApr 13, 09:40 UTC1h 45m
2026-04-13 LED5 - Apr 13, 07:25 UTCApr 13, 08:15 UTC50m

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

Mode-S 479173 frequently asked

What is Mode-S code 479173?
479173 is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to LN-TTB.
Where is Mode-S 479173 registered?
Mode-S code 479173 is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 479173 broadcasting right now?
No active broadcast right now. Last signal was 22h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 479173, octal 21710563, decimal 4,690,291.
What flights does 479173 operate?
Mode-S 479173 has broadcast 1 distinct callsign, including LED5.