sensors Mode-S transponder

4AC9F4

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9F4
Octal
22544764
Decimal
4,901,364
Country
SE
Tail
SE-ROT
Type
A20N
No current signal · last broadcast 6h ago
Flights observed
290
Distinct callsigns
20
Country
SE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4AC9F4.

Country allocation

The ICAO 24-bit address 4AC9F4 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SAS27E OSL → TOS May 29, 17:35 UTCMay 29, 18:55 UTC1h 20m
2026-05-29 SAS497 OSL → ARN May 29, 15:20 UTCMay 29, 16:00 UTC40m
2026-05-29 SAS1017 SFT → ARN May 29, 13:40 UTCMay 29, 14:25 UTC45m
2026-05-29 SAS73T ARN → SFT May 29, 11:55 UTCMay 29, 12:50 UTC55m
2026-05-29 SAS42E CPH → ARN May 29, 10:00 UTCMay 29, 11:00 UTC1h 0m
2026-05-29 SAS41K ARN → CPH May 29, 08:15 UTCMay 29, 09:05 UTC50m
2026-05-29 SAS46M CPH → ARN May 29, 06:05 UTCMay 29, 07:05 UTC1h 0m
2026-05-29 SAS1415 ARN → CPH May 29, 04:10 UTCMay 29, 05:00 UTC50m
2026-05-28 SAS410 CPH → ARN May 28, 16:10 UTCMay 28, 17:05 UTC55m
2026-05-28 SAS407 ARN → CPH May 28, 14:10 UTCMay 28, 15:05 UTC55m
2026-05-28 SAS496 OSL → ARN May 28, 12:00 UTCMay 28, 12:45 UTC45m
2026-05-28 SAS495 ARN → OSL May 28, 10:25 UTCMay 28, 11:10 UTC45m
2026-05-28 SAS005 - May 28, 08:25 UTCMay 28, 09:25 UTC1h 0m
2026-05-28 SAS1004 ARN → LLA May 28, 06:35 UTCMay 28, 07:30 UTC55m
2026-05-28 SAS82K LLA → ARN May 28, 04:15 UTCMay 28, 05:20 UTC1h 5m
2026-05-27 SAS22Y ARN → LLA May 27, 19:55 UTCMay 27, 20:50 UTC55m
2026-05-27 SAS2031 UME → ARN May 27, 18:10 UTCMay 27, 19:00 UTC50m
2026-05-27 SAS2030 ARN → UME May 27, 16:35 UTCMay 27, 17:10 UTC35m
2026-05-27 SAS41A GOT → ARN May 27, 14:40 UTCMay 27, 15:35 UTC55m
2026-05-27 SAS161 ARN → GOT May 27, 13:05 UTCMay 27, 13:45 UTC40m
2026-05-27 SAS61A CPH → ARN May 27, 11:10 UTCMay 27, 12:05 UTC55m
2026-05-27 SAS1421 ARN → CPH May 27, 09:10 UTCMay 27, 10:05 UTC55m
2026-05-27 SAS60P ARN → OSL May 27, 06:29 UTCMay 27, 07:10 UTC40m
2026-05-27 SAS485 ARN → OSL May 27, 04:34 UTCMay 27, 05:19 UTC45m
2026-05-26 SAS1410 CPH → ARN May 26, 20:45 UTCMay 26, 21:34 UTC50m
2026-05-26 SAS39C ARN → CPH May 26, 18:59 UTCMay 26, 19:55 UTC55m
2026-05-26 SAS1408 CPH → ARN May 26, 17:44 UTCMay 26, 18:10 UTC25m
2026-05-26 SAS1408 CPH → ARN May 26, 15:20 UTCMay 26, 16:40 UTC1h 20m
2026-05-26 SAS1407 ARN → CPH May 26, 13:19 UTCMay 26, 14:14 UTC55m
2026-05-26 SAS54N SPU → ARN May 26, 09:40 UTCMay 26, 12:10 UTC2h 30m
2026-05-26 SAS39M DUS → OSL May 26, 06:04 UTCMay 26, 08:19 UTC2h 15m
2026-05-26 SAS66G SFT → ARN May 26, 04:15 UTCMay 26, 05:10 UTC55m
2026-05-25 SAS50P ARN → SFT May 25, 19:50 UTCMay 25, 20:40 UTC50m
2026-05-25 SAS1430 CPH → ARN May 25, 17:10 UTCMay 25, 18:10 UTC1h 0m
2026-05-25 SAS1429 ARN → CPH May 25, 15:05 UTCMay 25, 16:00 UTC55m
2026-05-25 SAS1424 CPH → ARN May 25, 13:20 UTCMay 25, 14:20 UTC1h 0m
2026-05-25 SAS53C ARN → CPH May 25, 11:25 UTCMay 25, 12:20 UTC55m
2026-05-25 SAS57J KRN → ARN May 25, 08:40 UTCMay 25, 09:50 UTC1h 10m
2026-05-25 SAS62Y ARN → KRN May 25, 06:40 UTCMay 25, 07:50 UTC1h 10m
2026-05-25 SAS66G SFT → ARN May 25, 04:05 UTCMay 25, 05:05 UTC1h 0m
2026-05-24 SAS50P ARN → SFT May 24, 20:05 UTCMay 24, 21:00 UTC55m
2026-05-24 SAS019 LLA → ARN May 24, 17:55 UTCMay 24, 19:00 UTC1h 5m
2026-05-24 SAS016 ARN → LLA May 24, 16:05 UTCMay 24, 17:05 UTC1h 0m
2026-05-24 SAS99L AMS → ARN May 24, 12:55 UTCMay 24, 14:35 UTC1h 40m
2026-05-24 SAS33P ARN → AMS May 24, 09:50 UTCMay 24, 11:30 UTC1h 40m
2026-05-24 SAS58E CPH → ARN May 24, 07:10 UTCMay 24, 08:05 UTC55m
2026-05-24 SAS54C ARN → CPH May 24, 05:05 UTCMay 24, 05:55 UTC50m
2026-05-23 SAS7604 KVA → ARN May 23, 11:55 UTCMay 23, 15:00 UTC3h 5m
2026-05-23 SAS7603 ARN → KVA May 23, 04:25 UTCMay 23, 07:10 UTC2h 45m
2026-05-22 SAS576 CDG → ARN May 22, 15:55 UTCMay 22, 18:00 UTC2h 5m

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

Mode-S 4AC9F4 frequently asked

What is Mode-S code 4AC9F4?
4AC9F4 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROT.
Where is Mode-S 4AC9F4 registered?
Mode-S code 4AC9F4 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9F4 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9F4, octal 22544764, decimal 4,901,364.
What flights does 4AC9F4 operate?
Mode-S 4AC9F4 has broadcast 20 distinct callsigns, including SAS34L, SAS1228, SAS44G, SAS2802, SAS2801.