sensors Mode-S transponder

4AC9F3

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-ROS · AIRBUS A-320neo

Hex
4AC9F3
Octal
22544763
Decimal
4,901,363
Country
SE
Tail
SE-ROS
Type
A20N
No current signal · last broadcast 1d ago
Flights observed
481
Distinct callsigns
20
Country
SE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4AC9F3.

Country allocation

The ICAO 24-bit address 4AC9F3 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 20 distinct

Callsign Airline Flights Last seen
SAS42E Scandinavian Airlines System 7 2026-06-10
SAS72C - 6 2026-06-23
SAS54N - 6 2026-07-05
SAS41K Scandinavian Airlines System 6 2026-06-10
SAS1553 - 6 2026-06-23
SAS73T Scandinavian Airlines System 5 2026-06-05
SAS66G Scandinavian Airlines System 5 2026-06-08
SAS64E - 5 2026-07-09
SAS63H - 5 2026-07-09
SAS50P Scandinavian Airlines System 5 2026-06-07
SAS46M Scandinavian Airlines System 5 2026-06-10
SAS39M - 5 2026-07-05
SAS1556 - 5 2026-06-24
SAS1555 - 5 2026-06-24
SAS1017 Scandinavian Airlines System 5 2026-06-05
SAS82K - 4 2026-06-23
SAS676 Scandinavian Airlines System 4 2026-05-29
SAS53C - 4 2026-07-12
SAS46C - 4 2026-07-07
SAS1429 Scandinavian Airlines System 4 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 SAS7724 - Jul 12, 19:20 UTCJul 12, 22:45 UTC3h 25m
2026-07-12 SAS7723 CPH → GZP Jul 12, 15:01 UTCJul 12, 18:20 UTC3h 20m
2026-07-12 SAS53C ARN → CPH Jul 12, 11:35 UTCJul 12, 12:30 UTC55m
2026-07-12 SAS2678 - Jul 12, 09:00 UTCJul 12, 10:15 UTC1h 15m
2026-07-12 SAS2677 ARN → BER Jul 12, 06:40 UTCJul 12, 07:55 UTC1h 15m
2026-07-11 SAS97N FAO → ARN Jul 11, 18:55 UTCJul 11, 22:45 UTC3h 50m
2026-07-11 SAS2847 ARN → FAO Jul 11, 13:30 UTCJul 11, 17:40 UTC4h 10m
2026-07-11 SAS7604 - Jul 11, 08:15 UTCJul 11, 11:10 UTC2h 55m
2026-07-11 SAS7603 - Jul 11, 04:25 UTCJul 11, 07:10 UTC2h 45m
2026-07-10 SAS2932 - Jul 10, 18:50 UTCJul 10, 21:40 UTC2h 50m
2026-07-10 SAS2931 ARN → NCE Jul 10, 14:45 UTCJul 10, 17:35 UTC2h 50m
2026-07-10 SAS2856 - Jul 10, 10:40 UTCJul 10, 13:30 UTC2h 50m
2026-07-10 SAS2855 - Jul 10, 06:25 UTCJul 10, 09:15 UTC2h 50m
2026-07-09 SAS64E - Jul 9, 19:20 UTCJul 9, 21:35 UTC2h 15m
2026-07-09 SAS63H - Jul 9, 15:50 UTCJul 9, 18:15 UTC2h 25m
2026-07-09 SAS1582 MAD → ARN Jul 9, 11:00 UTCJul 9, 14:30 UTC3h 30m
2026-07-09 SAS1581 ARN → MAD Jul 9, 05:45 UTCJul 9, 09:10 UTC3h 25m
2026-07-08 SAS2934 ATH → ARN Jul 8, 17:00 UTCJul 8, 20:25 UTC3h 25m
2026-07-08 SAS2933 ARN → ATH Jul 8, 12:55 UTCJul 8, 15:55 UTC3h 0m
2026-07-08 SAS55Q - Jul 8, 08:00 UTCJul 8, 10:40 UTC2h 40m
2026-07-08 SAS68D - Jul 8, 04:15 UTCJul 8, 06:30 UTC2h 15m
2026-07-07 SAS886 OSL → ARN Jul 7, 17:40 UTCJul 7, 18:25 UTC45m
2026-07-07 SAS885 ARN → OSL Jul 7, 16:00 UTCJul 7, 16:40 UTC40m
2026-07-07 SAS46C - Jul 7, 14:00 UTCJul 7, 15:00 UTC1h 0m
2026-07-07 SAS010 - Jul 7, 12:00 UTCJul 7, 13:00 UTC1h 0m
2026-07-07 SAS76H - Jul 7, 09:05 UTCJul 7, 11:05 UTC2h 0m
2026-07-07 SAS61E ARN → MAN Jul 7, 05:45 UTCJul 7, 07:55 UTC2h 10m
2026-07-06 SAS2932 NCE → ARN Jul 6, 19:00 UTCJul 6, 21:40 UTC2h 40m
2026-07-06 SAS2931 - Jul 6, 17:05 UTCJul 6, 17:50 UTC45m
2026-07-06 SAS2931 - Jul 6, 15:00 UTCJul 6, 17:00 UTC2h 0m
2026-07-06 SAS58M LIN → ARN Jul 6, 11:30 UTCJul 6, 13:50 UTC2h 20m
2026-07-06 SAS63Z ARN → LIN Jul 6, 08:00 UTCJul 6, 10:20 UTC2h 20m
2026-07-05 SAS54N - Jul 5, 18:20 UTCJul 5, 20:45 UTC2h 25m
2026-07-05 SAS39M - Jul 5, 14:40 UTCJul 5, 16:50 UTC2h 10m
2026-07-05 SAS92L SKG → ARN Jul 5, 10:05 UTCJul 5, 13:15 UTC3h 10m
2026-07-05 SAS63D ARN → SKG Jul 5, 05:50 UTCJul 5, 08:40 UTC2h 50m
2026-07-04 SAS2936 NCE → ARN Jul 4, 16:45 UTCJul 4, 19:20 UTC2h 35m
2026-07-04 SAS2935 ARN → NCE Jul 4, 12:35 UTCJul 4, 15:15 UTC2h 40m
2026-07-04 SAS54N - Jul 4, 09:00 UTCJul 4, 11:25 UTC2h 25m
2026-07-04 SAS39M - Jul 4, 05:35 UTCJul 4, 07:40 UTC2h 5m
2026-07-03 SAS1558 - Jul 3, 19:40 UTCJul 3, 21:15 UTC1h 35m
2026-07-03 SAS1557 ARN → AMS Jul 3, 16:40 UTCJul 3, 18:25 UTC1h 45m
2026-07-03 SAS1424 CPH → ARN Jul 3, 14:00 UTCJul 3, 14:55 UTC55m
2026-07-03 SAS53C ARN → CPH Jul 3, 12:00 UTCJul 3, 13:05 UTC1h 5m
2026-07-03 SAS606 ZRH → ARN Jul 3, 08:30 UTCJul 3, 10:50 UTC2h 20m
2026-07-03 SAS12M ARN → ZRH Jul 3, 05:20 UTCJul 3, 07:25 UTC2h 5m
2026-07-02 SAS64E - Jul 2, 21:00 UTCJul 2, 23:05 UTC2h 5m
2026-07-02 SAS63H ARN → DUB Jul 2, 17:40 UTCJul 2, 20:00 UTC2h 20m
2026-07-02 SAS1582 MAD → ARN Jul 2, 13:15 UTCJul 2, 16:25 UTC3h 10m
2026-07-02 SAS1581 ARN → MAD Jul 2, 07:25 UTCJul 2, 10:55 UTC3h 30m

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

Mode-S 4AC9F3 frequently asked

What is Mode-S code 4AC9F3?
4AC9F3 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROS.
Where is Mode-S 4AC9F3 registered?
Mode-S code 4AC9F3 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9F3 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9F3, octal 22544763, decimal 4,901,363.
What flights does 4AC9F3 operate?
Mode-S 4AC9F3 has broadcast 20 distinct callsigns, including SAS42E, SAS72C, SAS54N, SAS41K, SAS1553.