sensors Mode-S transponder

4ACA6D

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACA6D
Octal
22545155
Decimal
4,901,485
Country
SE
Tail
SE-RSM
Type
E195
No current signal · last broadcast 23m ago
Flights observed
304
Distinct callsigns
20
Country
SE
Last broadcast
23m ago

Last known position

Most recent position reported by Mode-S 4ACA6D.

Country allocation

The ICAO 24-bit address 4ACA6D 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
2026-05-30 SAS257 OSL → BGO May 30, 08:35 UTCMay 30, 09:15 UTC40m
2026-05-30 SAS4010 SVG → OSL May 30, 06:30 UTCMay 30, 07:15 UTC45m
2026-05-29 SAS4616 ABZ → SVG May 29, 18:00 UTCMay 29, 18:45 UTC45m
2026-05-29 SAS4615 SVG → ABZ May 29, 16:15 UTCMay 29, 17:10 UTC55m
2026-05-29 SAS48G BGO → SVG May 29, 14:45 UTCMay 29, 15:10 UTC25m
2026-05-29 SAS4176 BGO → TRD May 29, 13:35 UTCMay 29, 14:05 UTC30m
2026-05-29 SAS4467 TRD → SVG May 29, 08:15 UTCMay 29, 09:15 UTC1h 0m
2026-05-29 SAS4488 SVG → TRD May 29, 06:40 UTCMay 29, 07:35 UTC55m
2026-05-29 SAS4489 TRD → SVG May 29, 04:55 UTCMay 29, 05:55 UTC1h 0m
2026-05-28 SAS79F SVG → TRD May 28, 18:50 UTCMay 28, 19:45 UTC55m
2026-05-28 SAS43T TRD → SVG May 28, 17:05 UTCMay 28, 17:55 UTC50m
2026-05-28 SAS4174 SVG → BGO May 28, 15:00 UTCMay 28, 15:50 UTC50m
2026-05-28 SAS4176 BGO → TRD May 28, 13:50 UTCMay 28, 14:15 UTC25m
2026-05-28 SAS4135 BGO → SVG May 28, 05:55 UTCMay 28, 06:20 UTC25m
2026-05-28 SAS4152 SVG → BGO May 28, 04:50 UTCMay 28, 05:10 UTC20m
2026-05-27 SAS4055 OSL → SVG May 27, 19:25 UTCMay 27, 19:55 UTC30m
2026-05-27 SAS222 KRS → OSL May 27, 18:00 UTCMay 27, 18:50 UTC50m
2026-05-27 SAS221 OSL → KRS May 27, 16:35 UTCMay 27, 17:10 UTC35m
2026-05-27 SAS2306 KSU → OSL May 27, 15:10 UTCMay 27, 15:45 UTC35m
2026-05-27 SAS2303 OSL → KSU May 27, 13:40 UTCMay 27, 14:20 UTC40m
2026-05-27 SAS867 ARN → OSL May 27, 12:10 UTCMay 27, 12:55 UTC45m
2026-05-27 SAS868 OSL → ARN May 27, 10:25 UTCMay 27, 11:05 UTC40m
2026-05-27 SAS69J SVG → OSL May 27, 07:40 UTCMay 27, 08:20 UTC40m
2026-05-27 SAS85G OSL → SVG May 27, 06:15 UTCMay 27, 07:00 UTC46m
2026-05-27 SAS2302 KSU → OSL May 27, 04:24 UTCMay 27, 04:59 UTC35m
2026-05-26 SAS2309 OSL → KSU May 26, 19:25 UTCMay 26, 20:00 UTC35m
2026-05-26 SAS319 HAU → OSL May 26, 17:39 UTCMay 26, 18:14 UTC35m
2026-05-26 SAS77E OSL → HAU May 26, 16:15 UTCMay 26, 16:55 UTC40m
2026-05-26 SAS1321 AES → OSL May 26, 14:40 UTCMay 26, 15:24 UTC45m
2026-05-26 SAS1320 OSL → AES May 26, 12:54 UTCMay 26, 13:29 UTC35m
2026-05-26 SAS262 BGO → OSL May 26, 10:54 UTCMay 26, 11:24 UTC30m
2026-05-26 SAS4156 SVG → BGO May 26, 08:59 UTCMay 26, 09:25 UTC25m
2026-05-26 SAS4139 BGO → SVG May 26, 07:45 UTCMay 26, 08:10 UTC25m
2026-05-26 SAS4148 SVG → BGO May 26, 06:10 UTCMay 26, 06:39 UTC30m
2026-05-26 SAS4133 BGO → SVG May 26, 05:10 UTCMay 26, 05:30 UTC20m
2026-05-25 SAS287 OSL → BGO May 25, 21:35 UTCMay 25, 22:25 UTC50m
2026-05-25 SAS1472 CPH → OSL May 25, 19:35 UTCMay 25, 20:30 UTC55m
2026-05-25 SAS77K OSL → CPH May 25, 17:45 UTCMay 25, 18:30 UTC45m
2026-05-25 SAS375 TRD → OSL May 25, 16:05 UTCMay 25, 16:40 UTC35m
2026-05-25 SAS362 OSL → TRD May 25, 14:30 UTCMay 25, 15:15 UTC45m
2026-05-25 SAS834 CDG → OSL May 25, 10:40 UTCMay 25, 12:35 UTC1h 55m
2026-05-25 SAS97F OSL → CDG May 25, 07:05 UTCMay 25, 09:10 UTC2h 5m
2026-05-25 SAS15E KRS → OSL May 25, 04:55 UTCMay 25, 05:30 UTC35m
2026-05-24 SAS227 OSL → KRS May 24, 20:15 UTCMay 24, 20:50 UTC35m
2026-05-24 SAS2308 KSU → OSL May 24, 15:50 UTCMay 24, 16:30 UTC40m
2026-05-24 SAS2305 OSL → KSU May 24, 14:25 UTCMay 24, 15:00 UTC35m
2026-05-24 SAS1466 CPH → OSL May 24, 12:00 UTCMay 24, 12:55 UTC55m
2026-05-24 SAS1457 OSL → CPH May 24, 10:00 UTCMay 24, 10:45 UTC45m
2026-05-24 SAS452 CPH → OSL May 24, 08:10 UTCMay 24, 09:00 UTC50m
2026-05-24 SAS56T OSL → CPH May 24, 06:10 UTCMay 24, 07:00 UTC50m

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

Mode-S 4ACA6D frequently asked

What is Mode-S code 4ACA6D?
4ACA6D is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RSM.
Where is Mode-S 4ACA6D registered?
Mode-S code 4ACA6D is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA6D broadcasting right now?
No active broadcast right now. Last signal was 23m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA6D, octal 22545155, decimal 4,901,485.
What flights does 4ACA6D operate?
Mode-S 4ACA6D has broadcast 20 distinct callsigns, including SAS257, SAS4162, SAS48G, SAS92R, SAS71A.