sensors Mode-S transponder

4791DD

ICAO 24-bit transponder address · allocated to Norway

Currently assigned to LN-NIP · BOEING 737-800

Hex
4791DD
Octal
21710735
Decimal
4,690,397
Country
NO
Tail
LN-NIP
Type
B738
No current signal · last broadcast 15h ago
Flights observed
14
Distinct callsigns
13
Country
NO
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4791DD.

Country allocation

The ICAO 24-bit address 4791DD 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 13 distinct

Callsign Airline Flights Last seen
NOZ971 - 2 2026-04-13
NOZ970 - 1 2026-04-13
NOZ5AY - 1 2026-04-14
NOZ550 - 1 2026-04-12
NOZ549 - 1 2026-04-12
NOZ546 - 1 2026-04-12
NOZ531 - 1 2026-04-14
NOZ528 - 1 2026-04-14
NOZ526 - 1 2026-04-13
NOZ524 - 1 2026-04-14
NOZ523 Norwegian Air Shuttle AOC AS 1 2026-04-13
NOZ4DE - 1 2026-04-13
NOZ1335 - 1 2026-04-13

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 NOZ531 - Apr 14, 10:15 UTCApr 14, 11:00 UTC45m
2026-04-14 NOZ528 - Apr 14, 08:50 UTCApr 14, 09:05 UTC15m
2026-04-14 NOZ5AY - Apr 14, 07:30 UTCApr 14, 08:05 UTC35m
2026-04-14 NOZ524 - Apr 14, 06:05 UTCApr 14, 06:25 UTC20m
2026-04-13 NOZ971 - Apr 13, 16:15 UTCApr 13, 16:40 UTC25m
2026-04-13 NOZ971 - Apr 13, 16:00 UTCApr 13, 16:15 UTC15m
2026-04-13 NOZ970 - Apr 13, 12:20 UTCApr 13, 15:10 UTC2h 50m
2026-04-13 NOZ1335 - Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-13 NOZ4DE - Apr 13, 08:55 UTCApr 13, 10:40 UTC1h 45m
2026-04-13 NOZ526 - Apr 13, 07:15 UTCApr 13, 07:55 UTC40m
2026-04-13 NOZ523 SVG → OSL Apr 13, 05:40 UTCApr 13, 06:15 UTC35m
2026-04-12 NOZ550 - Apr 12, 19:55 UTCApr 12, 20:15 UTC20m
2026-04-12 NOZ549 - Apr 12, 18:35 UTCApr 12, 19:15 UTC40m
2026-04-12 NOZ546 - Apr 12, 17:15 UTCApr 12, 17:55 UTC40m

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

Mode-S 4791DD frequently asked

What is Mode-S code 4791DD?
4791DD is an ICAO 24-bit transponder address. Allocated to Norway. Assigned to LN-NIP.
Where is Mode-S 4791DD registered?
Mode-S code 4791DD is allocated to Norway (NO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4791DD broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4791DD, octal 21710735, decimal 4,690,397.
What flights does 4791DD operate?
Mode-S 4791DD has broadcast 13 distinct callsigns, including NOZ971, NOZ970, NOZ5AY, NOZ550, NOZ549.