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sensors Mode-S transponder

4ACA6F

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACA6F
Octal
22545157
Decimal
4,901,487
Country
SE
Tail
SE-RSO
Type
E190
No current signal · last broadcast 2h ago
Flights observed
340
Distinct callsigns
20
Country
SE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4ACA6F.

Country allocation

The ICAO 24-bit address 4ACA6F 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
SAS847 Scandinavian Airlines System 5 2026-06-12
SAS65L Scandinavian Airlines System 5 2026-06-15
SAS50B Scandinavian Airlines System 5 2026-06-12
SAS43U Scandinavian Airlines System 5 2026-06-15
SAS262 - 5 2026-06-15
SAS77E Scandinavian Airlines System 4 2026-06-11
SAS58K Scandinavian Airlines System 4 2026-06-14
SAS58A - 4 2026-06-22
SAS497 Scandinavian Airlines System 4 2026-06-16
SAS486 - 4 2026-06-16
SAS4581 Scandinavian Airlines System 4 2026-05-31
SAS4572 Scandinavian Airlines System 4 2026-05-31
SAS4561 Scandinavian Airlines System 4 2026-06-18
SAS4552 - 4 2026-06-18
SAS42D Scandinavian Airlines System 4 2026-06-16
SAS34A Scandinavian Airlines System 4 2026-06-14
SAS319 Scandinavian Airlines System 4 2026-06-11
SAS308 Scandinavian Airlines System 4 2026-06-16
SAS1327 Scandinavian Airlines System 4 2026-06-12
SAS1326 Scandinavian Airlines System 4 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-23 SAS4481 TRD → SVG Jun 23, 12:05 UTCJun 23, 13:05 UTC1h 0m
2026-06-23 SAS4486 SVG → TRD Jun 23, 10:29 UTCJun 23, 11:24 UTC55m
2026-06-23 SAS4612 - Jun 23, 08:54 UTCJun 23, 09:40 UTC45m
2026-06-23 SAS4611 - Jun 23, 06:59 UTCJun 23, 07:55 UTC55m
2026-06-23 SAS4135 - Jun 23, 05:29 UTCJun 23, 05:54 UTC25m
2026-06-23 SAS4154 - Jun 23, 04:19 UTCJun 23, 04:45 UTC25m
2026-06-22 SAS58A - Jun 22, 21:45 UTCJun 22, 22:10 UTC25m
2026-06-22 SAS58A - Jun 22, 20:10 UTCJun 22, 21:00 UTC50m
2026-06-22 SAS4170 - Jun 22, 18:35 UTCJun 22, 19:24 UTC50m
2026-06-22 SAS4170 - Jun 22, 17:15 UTCJun 22, 17:34 UTC20m
2026-06-22 SAS4159 BGO → SVG Jun 22, 15:20 UTCJun 22, 15:45 UTC25m
2026-06-22 SAS4156 - Jun 22, 14:14 UTCJun 22, 14:34 UTC20m
2026-06-22 SAS1872 - Jun 22, 12:25 UTCJun 22, 13:14 UTC50m
2026-06-22 SAS540 MAN → CPH Jun 22, 09:00 UTCJun 22, 10:25 UTC1h 25m
2026-06-22 SAS67C - Jun 22, 06:15 UTCJun 22, 08:00 UTC1h 45m
2026-06-21 SAS64C BLQ → CPH Jun 21, 20:45 UTCJun 21, 22:34 UTC1h 50m
2026-06-21 SAS71T - Jun 21, 17:35 UTCJun 21, 19:29 UTC1h 55m
2026-06-21 SAS1596 BRU → CPH Jun 21, 14:59 UTCJun 21, 16:10 UTC1h 10m
2026-06-21 SAS1595 CPH → BRU Jun 21, 12:44 UTCJun 21, 14:10 UTC1h 25m
2026-06-21 SAS1467 OSL → CPH Jun 21, 09:10 UTCJun 21, 10:04 UTC55m
2026-06-21 SAS83D CPH → OSL Jun 21, 07:14 UTCJun 21, 07:59 UTC45m
2026-06-21 SAS1871 - Jun 21, 03:59 UTCJun 21, 04:54 UTC55m
2026-06-20 SAS1876 - Jun 20, 21:30 UTCJun 20, 22:25 UTC55m
2026-06-20 SAS2980 - Jun 20, 18:54 UTCJun 20, 20:29 UTC1h 35m
2026-06-20 SAS2979 - Jun 20, 15:49 UTCJun 20, 17:49 UTC2h 0m
2026-06-20 SAS70K - Jun 20, 13:14 UTCJun 20, 13:44 UTC30m
2026-06-20 SAS61U - Jun 20, 10:25 UTCJun 20, 11:59 UTC1h 35m
2026-06-20 SAS455 - Jun 20, 07:14 UTCJun 20, 08:05 UTC50m
2026-06-20 SAS454 - Jun 20, 05:09 UTCJun 20, 05:59 UTC50m
2026-06-19 SAS94J FRA → CPH Jun 19, 19:09 UTCJun 19, 20:09 UTC1h 0m
2026-06-19 SAS1635 - Jun 19, 16:59 UTCJun 19, 17:59 UTC1h 0m
2026-06-19 SAS2873 - Jun 19, 14:29 UTCJun 19, 15:34 UTC1h 5m
2026-06-19 SAS2868 - Jun 19, 12:34 UTCJun 19, 13:39 UTC1h 5m
2026-06-19 SAS1212 - Jun 19, 10:50 UTCJun 19, 11:30 UTC40m
2026-06-19 SAS1211 - Jun 19, 09:34 UTCJun 19, 10:04 UTC30m
2026-06-19 SAS1208 - Jun 19, 07:59 UTCJun 19, 08:29 UTC30m
2026-06-19 SAS1207 - Jun 19, 06:39 UTCJun 19, 07:09 UTC30m
2026-06-19 SAS1871 - Jun 19, 04:10 UTCJun 19, 05:05 UTC55m
2026-06-18 SAS4616 ABZ → SVG Jun 18, 18:00 UTCJun 18, 18:45 UTC45m
2026-06-18 SAS4615 - Jun 18, 16:15 UTCJun 18, 17:10 UTC55m
2026-06-18 SAS48G - Jun 18, 14:45 UTCJun 18, 15:05 UTC20m
2026-06-18 SAS58A TRD → BGO Jun 18, 13:15 UTCJun 18, 14:05 UTC50m
2026-06-18 SAS4561 TOS → TRD Jun 18, 11:30 UTCJun 18, 12:20 UTC50m
2026-06-18 SAS4561 TOS → TRD Jun 18, 10:10 UTCJun 18, 10:45 UTC35m
2026-06-18 SAS4552 - Jun 18, 08:50 UTCJun 18, 09:10 UTC20m
2026-06-18 SAS4552 - Jun 18, 07:05 UTCJun 18, 07:50 UTC45m
2026-06-17 SAS4196 BGO → TRD Jun 17, 18:10 UTCJun 17, 18:55 UTC45m
2026-06-17 SAS93P TRD → BGO Jun 17, 16:25 UTCJun 17, 17:15 UTC50m
2026-06-17 SAS4174 - Jun 17, 14:55 UTCJun 17, 15:40 UTC45m
2026-06-17 SAS4176 - Jun 17, 13:35 UTCJun 17, 14:00 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-RSO page for operator, model, and routing details .

Mode-S 4ACA6F frequently asked

What is Mode-S code 4ACA6F?
4ACA6F is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RSO.
Where is Mode-S 4ACA6F registered?
Mode-S code 4ACA6F is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA6F broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA6F, octal 22545157, decimal 4,901,487.
What flights does 4ACA6F operate?
Mode-S 4ACA6F has broadcast 20 distinct callsigns, including SAS847, SAS65L, SAS50B, SAS43U, SAS262.