sensors Mode-S transponder

4ACA6B

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RSK · EMBRAER ERJ-190-100

Hex
4ACA6B
Octal
22545153
Decimal
4,901,483
Country
SE
Tail
SE-RSK
Type
E190
No current signal · last broadcast 11h ago
Flights observed
325
Distinct callsigns
20
Country
SE
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 4ACA6B.

Country allocation

The ICAO 24-bit address 4ACA6B 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
2026-05-29 SAS99H AAL → OSL May 29, 16:55 UTCMay 29, 17:35 UTC40m
2026-05-29 SAS1921 OSL → AAL May 29, 15:25 UTCMay 29, 16:05 UTC40m
2026-05-29 SAS58K SVG → OSL May 29, 11:05 UTCMay 29, 11:40 UTC35m
2026-05-29 SAS55D OSL → SVG May 29, 09:40 UTCMay 29, 10:20 UTC40m
2026-05-28 SAS1902 BLL → OSL May 28, 17:25 UTCMay 28, 18:20 UTC55m
2026-05-28 SAS1905 OSL → BLL May 28, 15:50 UTCMay 28, 16:35 UTC45m
2026-05-28 SAS274 BGO → OSL May 28, 14:20 UTCMay 28, 14:55 UTC35m
2026-05-28 SAS269 OSL → BGO May 28, 12:55 UTCMay 28, 13:35 UTC40m
2026-05-28 SAS355 TRD → OSL May 28, 11:00 UTCMay 28, 11:35 UTC35m
2026-05-28 SAS338 OSL → TRD May 28, 09:30 UTCMay 28, 10:15 UTC45m
2026-05-27 SPTUL - May 27, 18:10 UTCMay 27, 18:40 UTC30m
2026-05-25 SAS897 ARN → OSL May 25, 20:59 UTCMay 25, 21:49 UTC50m
2026-05-25 SAS886 OSL → ARN May 25, 19:10 UTCMay 25, 19:50 UTC40m
2026-05-25 SAS216 KRS → OSL May 25, 14:00 UTCMay 25, 14:35 UTC35m
2026-05-25 SAS215 OSL → KRS May 25, 12:35 UTCMay 25, 13:10 UTC35m
2026-05-25 SAS838 CDG → OSL May 25, 09:05 UTCMay 25, 11:00 UTC1h 55m
2026-05-25 SAS833 OSL → CDG May 25, 05:30 UTCMay 25, 07:30 UTC2h 0m
2026-05-24 SAS290 BGO → OSL May 24, 19:30 UTCMay 24, 20:05 UTC35m
2026-05-24 SAS43D OSL → BGO May 24, 18:10 UTCMay 24, 18:50 UTC40m
2026-05-24 SAS45E BGO → OSL May 24, 16:25 UTCMay 24, 17:00 UTC35m
2026-05-24 SAS79P OSL → BGO May 24, 14:55 UTCMay 24, 15:40 UTC45m
2026-05-24 SAS842 ZRH → OSL May 24, 11:50 UTCMay 24, 14:00 UTC2h 10m
2026-05-24 SAS841 OSL → ZRH May 24, 08:40 UTCMay 24, 10:35 UTC1h 55m
2026-05-24 SAS341 TRD → OSL May 24, 04:55 UTCMay 24, 05:40 UTC45m
2026-05-23 SAS9231 SVG → BGO May 23, 20:05 UTCMay 23, 20:50 UTC45m
2026-05-23 SAS4704 NCE → OSL May 23, 16:05 UTCMay 23, 18:45 UTC2h 41m
2026-05-23 SAS4703 OSL → NCE May 23, 12:20 UTCMay 23, 15:00 UTC2h 40m
2026-05-23 SAS1317 AES → OSL May 23, 10:40 UTCMay 23, 11:15 UTC35m
2026-05-23 SAS1314 OSL → AES May 23, 09:05 UTCMay 23, 09:35 UTC30m
2026-05-23 SAS58G TRD → OSL May 23, 07:25 UTCMay 23, 08:05 UTC40m
2026-05-22 SAS54B OSL → TRD May 22, 18:15 UTCMay 22, 18:55 UTC40m
2026-05-22 SAS1321 AES → OSL May 22, 14:20 UTCMay 22, 15:00 UTC40m
2026-05-22 SAS1320 OSL → AES May 22, 12:40 UTCMay 22, 13:15 UTC35m
2026-05-22 SAS58K SVG → OSL May 22, 11:00 UTCMay 22, 11:40 UTC40m
2026-05-22 SAS4017 OSL → SVG May 22, 07:50 UTCMay 22, 08:30 UTC40m
2026-05-22 SAS39K HAU → OSL May 22, 06:30 UTCMay 22, 07:05 UTC35m
2026-05-21 SAS320 OSL → HAU May 21, 21:45 UTCMay 21, 22:20 UTC35m
2026-05-21 SAS319 HAU → OSL May 21, 20:25 UTCMay 21, 20:55 UTC30m
2026-05-21 SAS77E OSL → HAU May 21, 18:45 UTCMay 21, 19:20 UTC35m
2026-05-21 SAS77E OSL → HAU May 21, 15:55 UTCMay 21, 17:40 UTC1h 45m
2026-05-21 SAS216 KRS → OSL May 21, 14:00 UTCMay 21, 14:45 UTC45m
2026-05-21 SAS215 OSL → KRS May 21, 12:45 UTCMay 21, 13:15 UTC30m
2026-05-21 SAS15E KRS → OSL May 21, 05:05 UTCMay 21, 05:40 UTC35m
2026-05-20 SAS223 OSL → KRS May 20, 18:50 UTCMay 20, 19:20 UTC30m
2026-05-20 SAS867 ARN → OSL May 20, 12:00 UTCMay 20, 12:45 UTC45m
2026-05-20 SAS868 OSL → ARN May 20, 10:20 UTCMay 20, 11:10 UTC50m
2026-05-20 SAS351 TRD → OSL May 20, 08:30 UTCMay 20, 09:10 UTC40m
2026-05-20 SAS336 OSL → TRD May 20, 07:10 UTCMay 20, 07:50 UTC40m
2026-05-20 SAS4008 SVG → OSL May 20, 05:30 UTCMay 20, 06:15 UTC45m
2026-05-19 SAS4049 OSL → SVG May 19, 18:40 UTCMay 19, 19:05 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-RSK page for operator, model, and routing details .

Mode-S 4ACA6B frequently asked

What is Mode-S code 4ACA6B?
4ACA6B is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RSK.
Where is Mode-S 4ACA6B registered?
Mode-S code 4ACA6B is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA6B broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA6B, octal 22545153, decimal 4,901,483.
What flights does 4ACA6B operate?
Mode-S 4ACA6B has broadcast 20 distinct callsigns, including SAS4174, SAS215, SAS58A, SAS15E, SAS39K.