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sensors Mode-S transponder

4AC9E3

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9E3
Octal
22544743
Decimal
4,901,347
Country
SE
Tail
SE-ROC
Type
A20N
No current signal · last broadcast Jul 26, 20:15 UTC
Flights observed
574
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 20:15 UTC

Last known position

Most recent position reported by Mode-S 4AC9E3.

Country allocation

The ICAO 24-bit address 4AC9E3 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 - 7 2026-06-17
SAS54C Scandinavian Airlines System 6 2026-07-20
SAS46M - 6 2026-06-17
SAS68L - 5 2026-07-09
SAS58E - 5 2026-07-20
SAS41K - 5 2026-06-17
SAS2981 - 5 2026-06-19
SAS1428 - 5 2026-07-19
SAS1228 Scandinavian Airlines System 5 2026-05-30
SAS1225 Scandinavian Airlines System 5 2026-05-29
SAS97T Scandinavian Airlines System 4 2026-06-04
SAS82K - 4 2026-06-19
SAS66G - 4 2026-06-16
SAS64R Scandinavian Airlines System 4 2026-07-18
SAS61P Scandinavian Airlines System 4 2026-07-18
SAS58M Scandinavian Airlines System 4 2026-04-23
SAS554 Scandinavian Airlines System 4 2026-05-25
SAS50P Scandinavian Airlines System 4 2026-06-15
SAS50F - 4 2026-07-09
SAS49M Scandinavian Airlines System 4 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS1910 BIO → CPH Jul 26, 17:55 UTCJul 26, 20:15 UTC2h 20m
2026-07-26 SAS33G TOS → OSL Jul 26, 14:00 UTCJul 26, 16:15 UTC2h 15m
2026-07-26 SAS53T CPH → FAE Jul 26, 06:10 UTCJul 26, 10:50 UTC4h 41m
2026-07-25 SAS37L ARN → CDG Jul 25, 11:10 UTCJul 25, 14:35 UTC3h 25m
2026-07-25 SAS2817 CPH → CHQ Jul 25, 06:50 UTCJul 25, 09:35 UTC2h 45m
2026-07-24 SAS52E PRG → CPH Jul 24, 21:40 UTCJul 24, 22:35 UTC55m
2026-07-24 SAS44L CPH → PRG Jul 24, 19:45 UTCJul 24, 20:40 UTC55m
2026-07-24 SAS2788 SPU → CPH Jul 24, 16:55 UTCJul 24, 18:50 UTC1h 55m
2026-07-24 SAS2787 CPH → SPU Jul 24, 14:00 UTCJul 24, 15:25 UTC1h 25m
2026-07-24 SAS2822 GZP → CPH Jul 24, 08:30 UTCJul 24, 12:00 UTC3h 30m
2026-07-24 SAS2821 CPH → GZP Jul 24, 04:20 UTCJul 24, 07:25 UTC3h 5m
2026-07-23 SAS30T PMI → CPH Jul 23, 18:15 UTCJul 23, 21:10 UTC2h 55m
2026-07-23 SAS96C CPH → PMI Jul 23, 14:10 UTCJul 23, 16:30 UTC2h 20m
2026-07-22 SAS1936 DLM → CPH Jul 22, 19:15 UTCJul 22, 22:35 UTC3h 20m
2026-07-22 SAS1935 CPH → DLM Jul 22, 14:05 UTCJul 22, 17:05 UTC3h 0m
2026-07-22 SAS7562 SMI → BLL Jul 22, 11:10 UTCJul 22, 11:55 UTC45m
2026-07-22 SAS7561 CPH → GZP Jul 22, 04:10 UTCJul 22, 05:25 UTC1h 15m
2026-07-21 SAS2479 - Jul 21, 17:05 UTCJul 21, 18:50 UTC1h 45m
2026-07-21 SAS2478 - Jul 21, 14:20 UTCJul 21, 16:15 UTC1h 55m
2026-07-21 SAS53C ARN → CPH Jul 21, 12:00 UTCJul 21, 12:55 UTC55m
2026-07-21 SAS76H MAN → ARN Jul 21, 08:40 UTCJul 21, 10:55 UTC2h 15m
2026-07-21 SAS61E ARN → ZRH Jul 21, 05:25 UTCJul 21, 07:20 UTC1h 55m
2026-07-20 SAS2932 NCE → ARN Jul 20, 19:10 UTCJul 20, 21:45 UTC2h 35m
2026-07-20 SAS2931 ARN → NCE Jul 20, 14:40 UTCJul 20, 17:25 UTC2h 45m
2026-07-20 SAS1491 TOS → ARN Jul 20, 12:15 UTCJul 20, 13:45 UTC1h 30m
2026-07-20 SAS1492 ARN → TOS Jul 20, 09:30 UTCJul 20, 10:55 UTC1h 25m
2026-07-20 SAS58E CPH → ARN Jul 20, 07:10 UTCJul 20, 08:00 UTC50m
2026-07-20 SAS54C ARN → CPH Jul 20, 05:15 UTCJul 20, 06:15 UTC1h 0m
2026-07-19 SAS1428 CPH → ARN Jul 19, 21:45 UTCJul 19, 22:35 UTC50m
2026-07-19 SAS40G ARN → CPH Jul 19, 19:15 UTCJul 19, 20:10 UTC55m
2026-07-19 SAS1430 CPH → ARN Jul 19, 17:10 UTCJul 19, 18:05 UTC55m
2026-07-19 SAS1429 ARN → CPH Jul 19, 15:20 UTCJul 19, 16:15 UTC55m
2026-07-19 SAS46C - Jul 19, 12:35 UTCJul 19, 13:45 UTC1h 10m
2026-07-19 SAS010 - Jul 19, 10:40 UTCJul 19, 11:30 UTC50m
2026-07-19 SAS898 BGO → ARN Jul 19, 08:30 UTCJul 19, 09:40 UTC1h 10m
2026-07-19 SAS96X ARN → BGO Jul 19, 06:35 UTCJul 19, 07:35 UTC1h 0m
2026-07-18 SAS64R SPU → ARN Jul 18, 17:55 UTCJul 18, 20:05 UTC2h 10m
2026-07-18 SAS61P ARN → SPU Jul 18, 14:15 UTCJul 18, 16:35 UTC2h 20m
2026-07-17 SAS64R - Jul 17, 17:50 UTCJul 17, 20:00 UTC2h 10m
2026-07-17 SAS61P - Jul 17, 14:00 UTCJul 17, 16:19 UTC2h 20m
2026-07-16 SAS2616 GVA → ARN Jul 16, 20:00 UTCJul 16, 22:15 UTC2h 15m
2026-07-16 SAS93E ARN → GVA Jul 16, 15:35 UTCJul 16, 18:25 UTC2h 50m
2026-07-16 SAS2844 - Jul 16, 09:20 UTCJul 16, 13:15 UTC3h 55m
2026-07-16 SAS2843 - Jul 16, 04:25 UTCJul 16, 08:00 UTC3h 35m
2026-07-15 SAS1410 - Jul 15, 19:40 UTCJul 15, 20:35 UTC55m
2026-07-15 SAS39C - Jul 15, 17:40 UTCJul 15, 18:35 UTC55m
2026-07-15 SAS1408 CPH → ARN Jul 15, 15:20 UTCJul 15, 16:15 UTC55m
2026-07-15 SAS2620 - Jul 15, 10:45 UTCJul 15, 12:05 UTC1h 20m
2026-07-15 SAS2619 - Jul 15, 08:10 UTCJul 15, 09:25 UTC1h 15m
2026-07-15 SAS91A ARN → CPH Jul 15, 06:15 UTCJul 15, 07:10 UTC55m

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

Mode-S 4AC9E3 frequently asked

What is Mode-S code 4AC9E3?
4AC9E3 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROC.
Where is Mode-S 4AC9E3 registered?
Mode-S code 4AC9E3 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9E3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9E3, octal 22544743, decimal 4,901,347.
What flights does 4AC9E3 operate?
Mode-S 4AC9E3 has broadcast 20 distinct callsigns, including SAS42E, SAS54C, SAS46M, SAS68L, SAS58E.