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sensors Mode-S transponder

4ACA75

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RSU · EMBRAER ERJ-190-200

Hex
4ACA75
Octal
22545165
Decimal
4,901,493
Country
SE
Tail
SE-RSU
Type
E195
No current signal · last broadcast Jul 26, 16:40 UTC
Flights observed
771
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 16:40 UTC

Last known position

Most recent position reported by Mode-S 4ACA75.

Country allocation

The ICAO 24-bit address 4ACA75 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
SAS24F Scandinavian Airlines System 14 2026-07-24
SAS31F Scandinavian Airlines System 12 2026-07-24
SAS2885 Scandinavian Airlines System 12 2026-07-24
SAS1875 Scandinavian Airlines System 11 2026-07-24
SAS1870 Scandinavian Airlines System 11 2026-07-24
SAS2884 Scandinavian Airlines System 10 2026-07-23
SAS4561 Scandinavian Airlines System 9 2026-06-02
SAS1320 - 9 2026-07-13
SAS58A - 8 2026-06-16
SAS542 Scandinavian Airlines System 8 2026-07-24
SAS541 Scandinavian Airlines System 8 2026-07-24
SAS48G - 8 2026-06-16
SAS4616 - 8 2026-06-16
SAS4615 - 8 2026-06-16
SAS4552 Scandinavian Airlines System 8 2026-06-02
SAS42F - 8 2026-06-18
SAS4176 Scandinavian Airlines System 8 2026-06-04
SAS1871 Scandinavian Airlines System 8 2026-07-25
SAS1321 - 8 2026-07-13
SAS93P Scandinavian Airlines System 7 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS70K GVA → CPH Jul 26, 14:55 UTCJul 26, 16:40 UTC1h 45m
2026-07-26 SAS61U CPH → GVA Jul 26, 12:00 UTCJul 26, 13:35 UTC1h 35m
2026-07-26 SAS88A BLQ → CPH Jul 26, 08:30 UTCJul 26, 10:15 UTC1h 45m
2026-07-26 SAS56D CPH → ARN Jul 26, 05:40 UTCJul 26, 07:20 UTC1h 41m
2026-07-25 SAS2512 NCE → CPH Jul 25, 21:25 UTCJul 25, 23:20 UTC1h 55m
2026-07-25 SAS2511 CPH → NCE Jul 25, 17:35 UTCJul 25, 20:20 UTC2h 45m
2026-07-25 SAS2873 BGO → CPH Jul 25, 14:40 UTCJul 25, 15:40 UTC1h 0m
2026-07-25 SAS2868 CPH → BGO Jul 25, 12:45 UTCJul 25, 13:50 UTC1h 5m
2026-07-25 SAS70P DUB → CPH Jul 25, 09:50 UTCJul 25, 11:25 UTC1h 35m
2026-07-25 SAS32F CPH → DUB Jul 25, 06:20 UTCJul 25, 08:10 UTC1h 50m
2026-07-25 SAS1871 SVG → CPH Jul 25, 04:05 UTCJul 25, 04:55 UTC50m
2026-07-24 SAS1876 CPH → SVG Jul 24, 21:25 UTCJul 24, 22:20 UTC55m
2026-07-24 SAS542 MAN → CPH Jul 24, 18:45 UTCJul 24, 20:15 UTC1h 30m
2026-07-24 SAS541 CPH → MAN Jul 24, 15:40 UTCJul 24, 17:10 UTC1h 30m
2026-07-24 SAS31F TRD → CPH Jul 24, 13:25 UTCJul 24, 14:45 UTC1h 20m
2026-07-24 SAS24F TRD → CPH Jul 24, 11:05 UTCJul 24, 12:25 UTC1h 20m
2026-07-24 SAS1875 SVG → CPH Jul 24, 08:25 UTCJul 24, 09:20 UTC55m
2026-07-24 SAS1870 CPH → SVG Jul 24, 06:45 UTCJul 24, 07:40 UTC55m
2026-07-24 SAS2885 TRD → CPH Jul 24, 03:45 UTCJul 24, 05:00 UTC1h 15m
2026-07-23 SAS2884 CPH → TRD Jul 23, 21:10 UTCJul 23, 22:30 UTC1h 20m
2026-07-23 SAS542 MAN → CPH Jul 23, 18:30 UTCJul 23, 19:55 UTC1h 25m
2026-07-23 SAS541 CPH → MAN Jul 23, 15:50 UTCJul 23, 17:25 UTC1h 35m
2026-07-23 SAS62A BRU → CPH Jul 23, 13:30 UTCJul 23, 14:50 UTC1h 20m
2026-07-23 SAS1593 CPH → BRU Jul 23, 11:15 UTCJul 23, 12:25 UTC1h 10m
2026-07-23 SAS1674 BER → CPH Jul 23, 08:25 UTCJul 23, 09:05 UTC40m
2026-07-23 SAS1673 CPH → BER Jul 23, 06:35 UTCJul 23, 07:10 UTC35m
2026-07-23 SAS2885 TRD → CPH Jul 23, 03:40 UTCJul 23, 04:55 UTC1h 15m
2026-07-22 SAS2884 CPH → TRD Jul 22, 21:25 UTCJul 22, 22:50 UTC1h 25m
2026-07-22 SAS542 MAN → CPH Jul 22, 18:45 UTCJul 22, 20:15 UTC1h 30m
2026-07-22 SAS541 CPH → MAN Jul 22, 15:45 UTCJul 22, 17:20 UTC1h 35m
2026-07-22 SAS31F TRD → CPH Jul 22, 13:15 UTCJul 22, 14:30 UTC1h 15m
2026-07-22 SAS24F TRD → CPH Jul 22, 11:10 UTCJul 22, 12:25 UTC1h 15m
2026-07-22 SAS1871 SVG → CPH Jul 22, 04:05 UTCJul 22, 04:55 UTC50m
2026-07-21 SAS1876 CPH → SVG Jul 21, 21:30 UTCJul 21, 22:25 UTC55m
2026-07-21 SAS542 MAN → CPH Jul 21, 18:30 UTCJul 21, 20:05 UTC1h 35m
2026-07-21 SAS541 CPH → MAN Jul 21, 15:50 UTCJul 21, 17:25 UTC1h 35m
2026-07-21 SAS62A BRU → CPH Jul 21, 13:30 UTCJul 21, 14:50 UTC1h 20m
2026-07-21 SAS1593 CPH → BRU Jul 21, 11:20 UTCJul 21, 12:30 UTC1h 10m
2026-07-21 SAS89T ZRH → CPH Jul 21, 08:50 UTCJul 21, 10:20 UTC1h 30m
2026-07-21 SAS601 CPH → ZRH Jul 21, 06:20 UTCJul 21, 07:35 UTC1h 15m
2026-07-21 SAS1871 SVG → CPH Jul 21, 04:05 UTCJul 21, 05:00 UTC55m
2026-07-20 SAS1876 CPH → SVG Jul 20, 21:40 UTCJul 20, 22:35 UTC55m
2026-07-20 SAS542 MAN → CPH Jul 20, 18:35 UTCJul 20, 20:10 UTC1h 35m
2026-07-20 SAS541 CPH → MAN Jul 20, 16:00 UTCJul 20, 17:20 UTC1h 20m
2026-07-20 SAS62A BRU → CPH Jul 20, 13:30 UTCJul 20, 14:55 UTC1h 25m
2026-07-20 SAS1593 CPH → BRU Jul 20, 11:25 UTCJul 20, 12:35 UTC1h 10m
2026-07-20 SAS89T ZRH → CPH Jul 20, 08:50 UTCJul 20, 10:15 UTC1h 25m
2026-07-20 SAS601 CPH → ZRH Jul 20, 06:10 UTCJul 20, 07:30 UTC1h 20m
2026-07-19 SAS70K GVA → CPH Jul 19, 15:15 UTCJul 19, 16:50 UTC1h 35m
2026-07-19 SAS61U CPH → GVA Jul 19, 12:10 UTCJul 19, 13:55 UTC1h 45m

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

Mode-S 4ACA75 frequently asked

What is Mode-S code 4ACA75?
4ACA75 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RSU.
Where is Mode-S 4ACA75 registered?
Mode-S code 4ACA75 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA75 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA75, octal 22545165, decimal 4,901,493.
What flights does 4ACA75 operate?
Mode-S 4ACA75 has broadcast 20 distinct callsigns, including SAS24F, SAS31F, SAS2885, SAS1875, SAS1870.