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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 Jul 26, 18:55 UTC
Flights observed
532
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 18:55 UTC

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
SAS792 - 4 2026-07-17
SAS791 - 4 2026-07-17
SAS676 Scandinavian Airlines System 4 2026-05-29
SAS53C - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS4698 LPA → OSL Jul 26, 13:45 UTCJul 26, 18:55 UTC5h 10m
2026-07-26 SAS4697 OSL → LPA Jul 26, 06:55 UTCJul 26, 11:50 UTC4h 55m
2026-07-26 SAS238 BGO → OSL Jul 26, 04:10 UTCJul 26, 04:45 UTC35m
2026-07-25 SAS4730 ALC → BGO Jul 25, 20:10 UTCJul 25, 23:30 UTC3h 20m
2026-07-25 SAS4961 KRS → ALC Jul 25, 15:45 UTCJul 25, 18:45 UTC3h 0m
2026-07-25 SAS4962 ALC → KRS Jul 25, 11:45 UTCJul 25, 14:45 UTC3h 0m
2026-07-25 SAS4729 BGO → ALC Jul 25, 06:05 UTCJul 25, 09:45 UTC3h 40m
2026-07-24 SAS4652 AGP → BGO Jul 24, 19:20 UTCJul 24, 22:40 UTC3h 20m
2026-07-24 SAS4651 BGO → AGP Jul 24, 13:55 UTCJul 24, 17:50 UTC3h 55m
2026-07-24 SAS4730 ALC → BGO Jul 24, 09:05 UTCJul 24, 12:20 UTC3h 15m
2026-07-24 SAS4729 BGO → ALC Jul 24, 04:10 UTCJul 24, 07:30 UTC3h 20m
2026-07-23 SAS4730 ALC → BGO Jul 23, 18:20 UTCJul 23, 21:50 UTC3h 30m
2026-07-23 SAS4657 SVG → ALC Jul 23, 14:05 UTCJul 23, 17:05 UTC3h 0m
2026-07-23 SAS85T ALC → SVG Jul 23, 09:50 UTCJul 23, 13:05 UTC3h 15m
2026-07-23 SAS4729 BGO → ALC Jul 23, 04:25 UTCJul 23, 07:35 UTC3h 10m
2026-07-22 SAS4730 ALC → BGO Jul 22, 20:05 UTCJul 22, 23:30 UTC3h 25m
2026-07-22 SAS4729 BGO → ALC Jul 22, 15:20 UTCJul 22, 18:30 UTC3h 10m
2026-07-22 SAS90L BGO → BGO Jul 22, 04:15 UTCJul 22, 13:55 UTC9h 40m
2026-07-21 SAS2874 CPH → BGO Jul 21, 21:35 UTCJul 21, 22:35 UTC1h 0m
2026-07-21 SAS7598 GVA → CPH Jul 21, 08:40 UTCJul 21, 11:05 UTC2h 25m
2026-07-21 SAS7597 BLL → FUE Jul 21, 03:50 UTCJul 21, 06:00 UTC2h 10m
2026-07-20 SAS34Y TOS → CPH Jul 20, 19:05 UTCJul 20, 21:00 UTC1h 55m
2026-07-20 SAS182Y CPH → TOS Jul 20, 15:50 UTCJul 20, 17:45 UTC1h 55m
2026-07-20 SAS53T CPH → CPH Jul 20, 09:40 UTCJul 20, 14:25 UTC4h 45m
2026-07-20 SAS455 OSL → CPH Jul 20, 07:10 UTCJul 20, 08:00 UTC50m
2026-07-20 SAS454 CPH → OSL Jul 20, 04:55 UTCJul 20, 06:05 UTC1h 10m
2026-07-19 SAS92U MAD → CPH Jul 19, 16:55 UTCJul 19, 19:35 UTC2h 40m
2026-07-19 SAS581 CPH → MAD Jul 19, 12:35 UTCJul 19, 15:20 UTC2h 45m
2026-07-19 SAS69R TOS → CPH Jul 19, 09:15 UTCJul 19, 11:20 UTC2h 5m
2026-07-19 SAS79U CPH → TOS Jul 19, 06:00 UTCJul 19, 07:55 UTC1h 55m
2026-07-18 SAS51B BCN → CPH Jul 18, 17:10 UTCJul 18, 19:20 UTC2h 10m
2026-07-18 SAS65D CPH → BCN Jul 18, 13:20 UTCJul 18, 15:50 UTC2h 30m
2026-07-18 SAS65K PMO → CPH Jul 18, 08:05 UTCJul 18, 10:35 UTC2h 30m
2026-07-18 SAS2695 CPH → PMO Jul 18, 04:15 UTCJul 18, 06:50 UTC2h 35m
2026-07-17 SAS792 NCE → CPH Jul 17, 19:40 UTCJul 17, 21:30 UTC1h 50m
2026-07-17 SAS791 CPH → NCE Jul 17, 16:24 UTCJul 17, 18:29 UTC2h 5m
2026-07-17 SAS1778 FAE → CPH Jul 17, 09:55 UTCJul 17, 14:39 UTC4h 45m
2026-07-17 SAS43C - Jul 17, 08:00 UTCJul 17, 08:54 UTC55m
2026-07-17 SAS52L CPH → OSL Jul 17, 06:15 UTCJul 17, 07:00 UTC45m
2026-07-16 SAS2822 - Jul 16, 17:54 UTCJul 16, 21:25 UTC3h 30m
2026-07-16 SAS2821 - Jul 16, 13:40 UTCJul 16, 17:00 UTC3h 20m
2026-07-16 SAS2992 RHO → CPH Jul 16, 08:50 UTCJul 16, 12:09 UTC3h 20m
2026-07-16 SAS2991 CPH → RHO Jul 16, 04:10 UTCJul 16, 07:20 UTC3h 10m
2026-07-15 SAS71G KEF → CPH Jul 15, 17:55 UTCJul 15, 20:40 UTC2h 45m
2026-07-15 SAS2595 CPH → KEF Jul 15, 13:50 UTCJul 15, 16:40 UTC2h 50m
2026-07-15 SAS7562 - Jul 15, 08:30 UTCJul 15, 12:00 UTC3h 30m
2026-07-15 SAS7561 CPH → GZP Jul 15, 04:10 UTCJul 15, 07:25 UTC3h 15m
2026-07-14 SAS71G - Jul 14, 17:55 UTCJul 14, 20:45 UTC2h 50m
2026-07-14 SAS2595 CPH → KEF Jul 14, 13:55 UTCJul 14, 16:40 UTC2h 45m
2026-07-14 SAS2676 - Jul 14, 10:00 UTCJul 14, 12:10 UTC2h 10m

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 Jul 26, 18:55 UTC.
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.