sensors Mode-S transponder

4AAA6B

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-JSK · AGUSTA AW-169

Hex
4AAA6B
Octal
22525153
Decimal
4,893,291
Country
SE
Tail
SE-JSK
Type
A169
No current signal · last broadcast 18h ago
Flights observed
6
Distinct callsigns
1
Country
SE
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 4AAA6B.

Country allocation

The ICAO 24-bit address 4AAA6B falls within the block assigned to Sweden (SE) by ICAO Annex 10, Volume III. Every aircraft registered in Sweden 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
DFL5930 - 6 2026-04-14

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 DFL5930 - Apr 14, 10:50 UTCApr 14, 11:05 UTC15m
2026-04-14 DFL5930 - Apr 14, 08:05 UTCApr 14, 08:20 UTC15m
2026-04-14 DFL5930 - Apr 14, 07:10 UTCApr 14, 07:25 UTC15m
2026-04-13 DFL5930 - Apr 13, 21:30 UTCApr 13, 22:00 UTC30m
2026-04-13 DFL5930 - Apr 13, 19:50 UTCApr 13, 20:00 UTC10m
2026-04-13 DFL5930 - Apr 13, 19:35 UTCApr 13, 19:45 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 SE-JSK page for operator, model, and routing details .

Mode-S 4AAA6B frequently asked

What is Mode-S code 4AAA6B?
4AAA6B is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-JSK.
Where is Mode-S 4AAA6B registered?
Mode-S code 4AAA6B is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AAA6B broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AAA6B, octal 22525153, decimal 4,893,291.
What flights does 4AAA6B operate?
Mode-S 4AAA6B has broadcast 1 distinct callsign, including DFL5930.