Apparatus

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sensors Mode-S transponder

4ACA70

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACA70
Octal
22545160
Decimal
4,901,488
Country
SE
Tail
SE-RSP
Type
E195
No current signal · last broadcast 54m ago
Flights observed
652
Distinct callsigns
20
Country
SE
Last broadcast
54m ago

Last known position

Most recent position reported by Mode-S 4ACA70.

Country allocation

The ICAO 24-bit address 4ACA70 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
SAS2884 - 24 2026-07-13
SAS2885 - 23 2026-07-14
SAS24F Scandinavian Airlines System 21 2026-06-30
SAS31F - 20 2026-06-30
SAS2873 - 16 2026-07-14
SAS2868 - 16 2026-07-14
SAS1630 - 15 2026-06-18
SAS1629 - 15 2026-06-18
SAS1871 - 14 2026-07-03
SAS1869 Scandinavian Airlines System 14 2026-06-13
SAS1868 Scandinavian Airlines System 14 2026-06-13
SAS1878 - 13 2026-06-16
SAS59J - 11 2026-06-16
SAS42Y - 11 2026-06-16
SAS1208 - 11 2026-06-17
SAS1207 - 10 2026-06-17
SAS94J - 9 2026-06-17
SAS1875 - 9 2026-07-09
SAS1870 - 9 2026-07-09
SAS1635 - 9 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SAS43M - Jul 14, 19:00 UTCJul 14, 20:00 UTC1h 0m
2026-07-14 SAS69X CPH → BRU Jul 14, 16:45 UTCJul 14, 18:00 UTC1h 15m
2026-07-14 SAS2873 BGO → CPH Jul 14, 14:45 UTCJul 14, 15:50 UTC1h 5m
2026-07-14 SAS2868 - Jul 14, 12:45 UTCJul 14, 13:50 UTC1h 5m
2026-07-14 SAS1674 BER → CPH Jul 14, 11:10 UTCJul 14, 11:50 UTC40m
2026-07-14 SAS1673 CPH → BER Jul 14, 06:55 UTCJul 14, 07:45 UTC50m
2026-07-14 SAS2885 TRD → CPH Jul 14, 03:50 UTCJul 14, 05:05 UTC1h 15m
2026-07-13 SAS2884 CPH → TRD Jul 13, 21:10 UTCJul 13, 22:30 UTC1h 20m
2026-07-13 SAS43M BRU → CPH Jul 13, 18:40 UTCJul 13, 19:50 UTC1h 10m
2026-07-13 SAS69X CPH → BRU Jul 13, 16:30 UTCJul 13, 17:45 UTC1h 15m
2026-07-13 SAS70K - Jul 13, 13:40 UTCJul 13, 15:15 UTC1h 35m
2026-07-13 SAS61U CPH → GVA Jul 13, 10:55 UTCJul 13, 12:35 UTC1h 40m
2026-07-13 SAS69B KRK → CPH Jul 13, 08:15 UTCJul 13, 09:25 UTC1h 10m
2026-07-13 SAS98K CPH → KRK Jul 13, 06:10 UTCJul 13, 07:20 UTC1h 10m
2026-07-12 SAS2747 PLQ → CPH Jul 12, 17:20 UTCJul 12, 18:15 UTC55m
2026-07-12 SAS2746 - Jul 12, 16:05 UTCJul 12, 16:35 UTC30m
2026-07-12 SAS2746 CPH → KUN Jul 12, 11:25 UTCJul 12, 13:20 UTC1h 55m
2026-07-12 SAS780 BUD → CPH Jul 12, 08:55 UTCJul 12, 10:25 UTC1h 30m
2026-07-12 SAS779 CPH → BUD Jul 12, 06:10 UTCJul 12, 07:40 UTC1h 30m
2026-07-11 SAS64C - Jul 11, 20:15 UTCJul 11, 22:10 UTC1h 55m
2026-07-11 SAS71T CPH → BLQ Jul 11, 17:15 UTCJul 11, 19:00 UTC1h 45m
2026-07-11 SAS2796 NCE → CPH Jul 11, 14:10 UTCJul 11, 16:10 UTC2h 0m
2026-07-11 SAS2795 CPH → NCE Jul 11, 10:20 UTCJul 11, 12:15 UTC1h 55m
2026-07-11 SAS88A - Jul 11, 07:15 UTCJul 11, 09:05 UTC1h 50m
2026-07-11 SAS56D CPH → BLQ Jul 11, 04:25 UTCJul 11, 06:10 UTC1h 45m
2026-07-10 SAS67L - Jul 10, 19:05 UTCJul 10, 20:05 UTC1h 0m
2026-07-10 SAS2872 CPH → BGO Jul 10, 17:20 UTCJul 10, 18:25 UTC1h 5m
2026-07-10 SAS2747 PLQ → CPH Jul 10, 15:25 UTCJul 10, 16:20 UTC55m
2026-07-10 SAS2746 CPH → PLQ Jul 10, 13:40 UTCJul 10, 14:35 UTC55m
2026-07-09 SAS792 NCE → CPH Jul 9, 20:10 UTCJul 9, 22:10 UTC2h 0m
2026-07-09 SAS791 CPH → NCE Jul 9, 17:05 UTCJul 9, 19:10 UTC2h 5m
2026-07-09 SAS70K - Jul 9, 13:50 UTCJul 9, 15:25 UTC1h 35m
2026-07-09 SAS61U - Jul 9, 11:00 UTCJul 9, 12:45 UTC1h 45m
2026-07-09 SAS1875 - Jul 9, 08:30 UTCJul 9, 09:30 UTC1h 0m
2026-07-09 SAS1870 CPH → SVG Jul 9, 06:50 UTCJul 9, 07:50 UTC1h 0m
2026-07-08 SAS33K - Jul 8, 18:45 UTCJul 8, 21:10 UTC2h 25m
2026-07-08 SAS49N CPH → FCO Jul 8, 15:25 UTCJul 8, 17:20 UTC1h 55m
2026-07-08 SAS2875 BGO → CPH Jul 8, 12:55 UTCJul 8, 13:50 UTC55m
2026-07-08 SAS2864 - Jul 8, 10:50 UTCJul 8, 12:00 UTC1h 10m
2026-07-08 SAS69B KRK → CPH Jul 8, 08:15 UTCJul 8, 09:35 UTC1h 20m
2026-07-08 SAS98K - Jul 8, 06:00 UTCJul 8, 07:05 UTC1h 5m
2026-07-07 SAS792 NCE → CPH Jul 7, 19:10 UTCJul 7, 21:20 UTC2h 10m
2026-07-07 SAS791 - Jul 7, 16:00 UTCJul 7, 18:00 UTC2h 0m
2026-07-07 SAS38D - Jul 7, 14:15 UTCJul 7, 15:05 UTC50m
2026-07-07 SAS4481 - Jul 7, 12:20 UTCJul 7, 13:15 UTC55m
2026-07-07 SAS4486 - Jul 7, 10:40 UTCJul 7, 11:40 UTC1h 0m
2026-07-07 SAS4612 ABZ → SVG Jul 7, 09:00 UTCJul 7, 09:45 UTC45m
2026-07-07 SAS4611 - Jul 7, 07:00 UTCJul 7, 08:00 UTC1h 0m
2026-07-07 SAS4135 BGO → SVG Jul 7, 05:35 UTCJul 7, 06:00 UTC25m
2026-07-07 SAS4154 - Jul 7, 04:20 UTCJul 7, 04:45 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-RSP page for operator, model, and routing details .

Mode-S 4ACA70 frequently asked

What is Mode-S code 4ACA70?
4ACA70 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RSP.
Where is Mode-S 4ACA70 registered?
Mode-S code 4ACA70 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA70 broadcasting right now?
No active broadcast right now. Last signal was 54m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA70, octal 22545160, decimal 4,901,488.
What flights does 4ACA70 operate?
Mode-S 4ACA70 has broadcast 20 distinct callsigns, including SAS2884, SAS2885, SAS24F, SAS31F, SAS2873.