Apparatus

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sensors Mode-S transponder

4ACA65

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RSE · AIRBUS A-350-900

Hex
4ACA65
Octal
22545145
Decimal
4,901,477
Country
SE
Tail
SE-RSE
Type
A359
No current signal · last broadcast 1h ago
Flights observed
185
Distinct callsigns
14
Country
SE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4ACA65.

Country allocation

The ICAO 24-bit address 4ACA65 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 14 distinct

Callsign Airline Flights Last seen
SAS925 - 24 2026-07-10
SAS936 - 22 2026-07-10
SAS935 - 22 2026-07-09
SAS926 - 22 2026-07-11
SAS987 - 20 2026-06-24
SAS988 - 17 2026-06-24
SAS983 Scandinavian Airlines System 13 2026-06-22
SAS984 Scandinavian Airlines System 12 2026-06-23
SAS930 - 11 2026-07-11
SAS929 - 10 2026-07-11
SAS938 - 5 2026-07-13
SAS937 - 5 2026-07-12
SAS916 Scandinavian Airlines System 1 2026-05-16
SAS915 Scandinavian Airlines System 1 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SAS938 SEA → CPH Jul 13, 22:30 UTCJul 14, 07:00 UTC8h 30m
2026-07-12 SAS937 CPH → SEA Jul 12, 11:40 UTCJul 12, 21:05 UTC9h 25m
2026-07-11 SAS930 ATL → CPH Jul 11, 23:55 UTCJul 12, 07:55 UTC8h 0m
2026-07-11 SAS929 CPH → ATL Jul 11, 11:55 UTCJul 11, 21:25 UTC9h 30m
2026-07-11 SAS926 IAD → CPH Jul 11, 00:40 UTCJul 11, 07:50 UTC7h 10m
2026-07-10 SAS925 CPH → IAD Jul 10, 12:45 UTCJul 10, 21:00 UTC8h 15m
2026-07-10 SAS936 SFO → CPH Jul 10, 00:20 UTCJul 10, 10:10 UTC9h 50m
2026-07-09 SAS935 CPH → SFO Jul 9, 11:10 UTCJul 9, 21:25 UTC10h 15m
2026-07-09 SAS926 IAD → CPH Jul 9, 00:20 UTCJul 9, 07:35 UTC7h 15m
2026-07-08 SAS925 CPH → IAD Jul 8, 12:40 UTCJul 8, 20:45 UTC8h 5m
2026-07-08 SAS936 - Jul 8, 00:20 UTCJul 8, 09:50 UTC9h 30m
2026-07-07 SAS935 CPH → SFO Jul 7, 11:10 UTCJul 7, 21:35 UTC10h 25m
2026-07-06 SAS930 ATL → CPH Jul 6, 23:50 UTCJul 7, 07:45 UTC7h 55m
2026-07-06 SAS929 CPH → ATL Jul 6, 11:45 UTCJul 6, 20:50 UTC9h 5m
2026-07-05 SAS926 IAD → CPH Jul 5, 03:00 UTCJul 5, 10:15 UTC7h 15m
2026-07-04 SAS925 CPH → IAD Jul 4, 12:50 UTCJul 4, 20:55 UTC8h 5m
2026-07-04 SAS936 SFO → CPH Jul 4, 00:10 UTCJul 4, 10:05 UTC9h 55m
2026-07-03 SAS935 CPH → SFO Jul 3, 11:40 UTCJul 3, 21:45 UTC10h 5m
2026-07-03 SAS930 - Jul 3, 02:55 UTCJul 3, 08:20 UTC5h 25m
2026-07-03 SAS930 - Jul 3, 00:25 UTCJul 3, 02:50 UTC2h 25m
2026-07-02 SAS929 CPH → ATL Jul 2, 12:05 UTCJul 2, 21:00 UTC8h 55m
2026-06-30 SAS938 SEA → CPH Jun 30, 23:45 UTCJul 1, 08:35 UTC8h 50m
2026-06-30 SAS937 - Jun 30, 11:25 UTCJun 30, 20:25 UTC9h 0m
2026-06-30 SAS926 IAD → CPH Jun 30, 00:30 UTCJun 30, 07:40 UTC7h 11m
2026-06-29 SAS925 CPH → IAD Jun 29, 12:49 UTCJun 29, 20:30 UTC7h 40m
2026-06-29 SAS936 - Jun 29, 00:10 UTCJun 29, 10:04 UTC9h 55m
2026-06-28 SAS935 CPH → SFO Jun 28, 11:45 UTCJun 28, 21:34 UTC9h 50m
2026-06-28 SAS926 IAD → CPH Jun 28, 00:25 UTCJun 28, 07:40 UTC7h 15m
2026-06-27 SAS925 CPH → IAD Jun 27, 12:50 UTCJun 27, 20:49 UTC8h 0m
2026-06-27 SAS936 - Jun 27, 00:10 UTCJun 27, 09:55 UTC9h 45m
2026-06-26 SAS935 CPH → SFO Jun 26, 11:05 UTCJun 26, 21:20 UTC10h 15m
2026-06-25 SAS930 ATL → CPH Jun 25, 23:55 UTCJun 26, 07:55 UTC8h 0m
2026-06-25 SAS929 CPH → ATL Jun 25, 11:44 UTCJun 25, 20:39 UTC8h 55m
2026-06-24 SAS988 - Jun 24, 14:50 UTCJun 25, 03:50 UTC13h 0m
2026-06-24 SAS987 - Jun 24, 08:39 UTCJun 24, 09:05 UTC25m
2026-06-23 SAS987 - Jun 23, 22:10 UTCJun 24, 07:54 UTC9h 45m
2026-06-23 SAS984 HND → CPH Jun 23, 02:34 UTCJun 23, 15:34 UTC13h 0m
2026-06-22 SAS983 CPH → NRT Jun 22, 11:30 UTCJun 22, 23:29 UTC12h 0m
2026-06-21 SAS930 ATL → CPH Jun 21, 23:50 UTCJun 22, 07:54 UTC8h 5m
2026-06-21 SAS929 CPH → ATL Jun 21, 12:04 UTCJun 21, 20:59 UTC8h 55m
2026-06-20 SAS936 SFO → CPH Jun 20, 00:19 UTCJun 20, 10:09 UTC9h 50m
2026-06-19 SAS935 CPH → SFO Jun 19, 11:09 UTCJun 19, 21:24 UTC10h 15m
2026-06-19 SAS930 ATL → CPH Jun 19, 00:24 UTCJun 19, 08:14 UTC7h 50m
2026-06-18 SAS929 CPH → ATL Jun 18, 11:45 UTCJun 18, 21:00 UTC9h 15m
2026-06-18 SAS926 IAD → CPH Jun 18, 00:35 UTCJun 18, 08:00 UTC7h 25m
2026-06-17 SAS925 CPH → IAD Jun 17, 13:35 UTCJun 17, 21:25 UTC7h 50m
2026-06-17 SAS936 SFO → CPH Jun 17, 01:00 UTCJun 17, 10:50 UTC9h 50m
2026-06-16 SAS935 CPH → SFO Jun 16, 11:40 UTCJun 16, 21:50 UTC10h 11m
2026-06-15 SAS988 ICN → CPH Jun 15, 15:25 UTCJun 16, 04:00 UTC12h 35m
2026-06-15 SAS987 - Jun 15, 08:40 UTCJun 15, 09:05 UTC25m

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

Mode-S 4ACA65 frequently asked

What is Mode-S code 4ACA65?
4ACA65 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RSE.
Where is Mode-S 4ACA65 registered?
Mode-S code 4ACA65 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA65 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA65, octal 22545145, decimal 4,901,477.
What flights does 4ACA65 operate?
Mode-S 4ACA65 has broadcast 14 distinct callsigns, including SAS925, SAS936, SAS935, SAS926, SAS987.