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 36m ago
Flights observed
472
Distinct callsigns
20
Country
SE
Last broadcast
36m 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

Callsign Airline Flights Last seen
SAS1228 Scandinavian Airlines System 9 2026-06-13
SAS1225 Scandinavian Airlines System 7 2026-06-12
SAS34L Scandinavian Airlines System 5 2026-05-03
SAS66G - 4 2026-06-17
SAS50P - 4 2026-06-16
SAS4546 Scandinavian Airlines System 4 2026-07-08
SAS4545 - 4 2026-07-08
SAS44G Scandinavian Airlines System 4 2026-05-03
SAS41K - 4 2026-06-27
SAS39C - 4 2026-06-24
SAS2802 Scandinavian Airlines System 4 2026-04-22
SAS2801 Scandinavian Airlines System 4 2026-04-22
SAS1410 - 4 2026-06-24
SAS792 Scandinavian Airlines System 3 2026-06-05
SAS791 Scandinavian Airlines System 3 2026-06-05
SAS76H - 3 2026-06-30
SAS72U - 3 2026-06-16
SAS68L - 3 2026-07-02
SAS65K Scandinavian Airlines System 3 2026-04-19
SAS64E - 3 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SAS7308 - Jul 14, 17:50 UTCJul 14, 20:45 UTC2h 55m
2026-07-14 SAS74P - Jul 14, 13:00 UTCJul 14, 16:15 UTC3h 15m
2026-07-14 SAS7322 - Jul 14, 08:30 UTCJul 14, 11:50 UTC3h 20m
2026-07-14 SAS7307 - Jul 14, 04:05 UTCJul 14, 07:00 UTC2h 55m
2026-07-13 SAS7388 - Jul 13, 17:20 UTCJul 13, 20:30 UTC3h 10m
2026-07-13 SAS7387 - Jul 13, 12:55 UTCJul 13, 16:00 UTC3h 5m
2026-07-13 SAS4472 - Jul 13, 06:55 UTCJul 13, 11:20 UTC4h 25m
2026-07-13 SAS4079 - Jul 13, 04:35 UTCJul 13, 05:45 UTC1h 10m
2026-07-12 SAS4098 - Jul 12, 20:05 UTCJul 12, 21:15 UTC1h 10m
2026-07-12 SAS39A - Jul 12, 18:01 UTCJul 12, 19:05 UTC1h 5m
2026-07-12 SAS4122 - Jul 12, 15:55 UTCJul 12, 17:05 UTC1h 10m
2026-07-12 SAS7380 LCA → OSL Jul 12, 09:45 UTCJul 12, 14:01 UTC4h 15m
2026-07-12 SAS7379 - Jul 12, 04:05 UTCJul 12, 08:25 UTC4h 20m
2026-07-11 SAS1327 - Jul 11, 19:20 UTCJul 11, 19:50 UTC30m
2026-07-11 SAS7302 - Jul 11, 13:55 UTCJul 11, 18:00 UTC4h 5m
2026-07-11 SAS7381 - Jul 11, 07:30 UTCJul 11, 12:20 UTC4h 50m
2026-07-10 SAS4098 - Jul 10, 20:10 UTCJul 10, 21:20 UTC1h 10m
2026-07-10 SAS82Q - Jul 10, 09:35 UTCJul 10, 14:00 UTC4h 25m
2026-07-10 SAS7331 - Jul 10, 04:15 UTCJul 10, 08:15 UTC4h 0m
2026-07-09 SAS7358 AOK → OSL Jul 9, 17:20 UTCJul 9, 21:25 UTC4h 5m
2026-07-09 SAS7357 - Jul 9, 12:15 UTCJul 9, 15:30 UTC3h 15m
2026-07-08 SAS4545 - Jul 8, 14:00 UTCJul 8, 15:30 UTC1h 30m
2026-07-08 SAS4546 OSL → ALF Jul 8, 11:05 UTCJul 8, 12:45 UTC1h 40m
2026-07-08 SAS4079 - Jul 8, 04:25 UTCJul 8, 05:40 UTC1h 15m
2026-07-07 SAS4098 - Jul 7, 20:00 UTCJul 7, 21:10 UTC1h 10m
2026-07-07 SAS4545 - Jul 7, 14:10 UTCJul 7, 15:40 UTC1h 30m
2026-07-07 SAS4546 OSL → ALF Jul 7, 11:25 UTCJul 7, 12:55 UTC1h 30m
2026-07-06 SAS46B - Jul 6, 10:30 UTCJul 6, 14:10 UTC3h 40m
2026-07-06 SAS38R - Jul 6, 05:15 UTCJul 6, 08:55 UTC3h 40m
2026-07-05 SAS1472 CPH → OSL Jul 5, 19:35 UTCJul 5, 20:25 UTC50m
2026-07-05 SAS77K OSL → CPH Jul 5, 17:35 UTCJul 5, 18:20 UTC45m
2026-07-05 SAS4095 - Jul 5, 14:50 UTCJul 5, 16:15 UTC1h 25m
2026-07-05 SAS4094 - Jul 5, 12:40 UTCJul 5, 13:45 UTC1h 5m
2026-07-05 SAS50G - Jul 5, 10:15 UTCJul 5, 11:30 UTC1h 15m
2026-07-05 SAS43C OSL → CPH Jul 5, 08:20 UTCJul 5, 09:15 UTC55m
2026-07-05 SAS52L - Jul 5, 06:25 UTCJul 5, 07:15 UTC50m
2026-07-05 SAS73A - Jul 5, 04:20 UTCJul 5, 05:10 UTC50m
2026-07-04 SAS4497 OSL → OSL Jul 4, 14:55 UTCJul 4, 21:35 UTC6h 40m
2026-07-03 SAS55P ARN → OSL Jul 3, 05:25 UTCJul 3, 06:05 UTC40m
2026-07-02 SAS1600 - Jul 2, 19:55 UTCJul 2, 21:35 UTC1h 40m
2026-07-02 SAS64A ARN → BRU Jul 2, 16:35 UTCJul 2, 18:35 UTC2h 0m
2026-07-02 SAS68L - Jul 2, 14:00 UTCJul 2, 15:15 UTC1h 15m
2026-07-02 SAS50F - Jul 2, 11:50 UTCJul 2, 13:00 UTC1h 10m
2026-06-30 SAS1424 CPH → ARN Jun 30, 13:45 UTCJun 30, 14:40 UTC55m
2026-06-30 SAS53C ARN → CPH Jun 30, 11:45 UTCJun 30, 12:45 UTC1h 0m
2026-06-30 SAS76H MAN → ARN Jun 30, 08:45 UTCJun 30, 10:35 UTC1h 50m
2026-06-30 SAS61E ARN → MAN Jun 30, 05:25 UTCJun 30, 07:35 UTC2h 10m
2026-06-29 SAS92L SKG → ARN Jun 29, 09:00 UTCJun 29, 11:50 UTC2h 50m
2026-06-29 SAS63D ARN → SKG Jun 29, 04:34 UTCJun 29, 07:44 UTC3h 10m
2026-06-28 SAS2904 LIS → ARN Jun 28, 17:34 UTCJun 28, 21:04 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-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 36m 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 SAS1228, SAS1225, SAS34L, SAS66G, SAS50P.