Apparatus

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sensors Mode-S transponder

4ACA74

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACA74
Octal
22545164
Decimal
4,901,492
Country
SE
Tail
SE-RST
Type
E195
Broadcasting now · callsign SAS2749 · 36,000 ft
Flights observed
672
Distinct callsigns
20
Country
SE
Last broadcast
5h ago

Current position

4ACA74 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACA74 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
SAS2746 - 21 2026-07-11
SAS2747 - 20 2026-07-11
SAS2744 - 20 2026-07-14
SAS2884 - 19 2026-07-12
SAS2749 - 18 2026-07-14
SAS31F - 16 2026-07-14
SAS2885 - 16 2026-07-13
SAS24F - 13 2026-07-14
SAS1870 - 13 2026-07-11
SAS46R Scandinavian Airlines System 12 2026-06-11
SAS1875 - 12 2026-07-11
SAS1630 - 12 2026-06-15
SAS82A Scandinavian Airlines System 11 2026-06-11
SAS42Y Scandinavian Airlines System 11 2026-06-12
SAS2868 - 11 2026-07-05
SAS1869 Scandinavian Airlines System 11 2026-06-07
SAS1868 Scandinavian Airlines System 11 2026-06-07
SAS1629 - 11 2026-06-15
SAS59J Scandinavian Airlines System 10 2026-06-12
SAS2873 - 10 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SAS2744 CPH → PLQ Jul 14, 21:25 UTCJul 14, 22:25 UTC1h 0m
2026-07-14 SAS1879 - Jul 14, 18:15 UTCJul 14, 19:15 UTC1h 0m
2026-07-14 SAS1874 CPH → SVG Jul 14, 16:35 UTCJul 14, 17:30 UTC55m
2026-07-14 SAS31F TRD → CPH Jul 14, 13:05 UTCJul 14, 14:25 UTC1h 20m
2026-07-14 SAS24F CPH → TRD Jul 14, 11:00 UTCJul 14, 12:20 UTC1h 20m
2026-07-14 SAS69B - Jul 14, 08:25 UTCJul 14, 09:35 UTC1h 10m
2026-07-14 SAS98K - Jul 14, 06:15 UTCJul 14, 07:25 UTC1h 10m
2026-07-14 SAS2749 PLQ → CPH Jul 14, 04:00 UTCJul 14, 04:50 UTC50m
2026-07-13 SAS2744 CPH → PLQ Jul 13, 21:10 UTCJul 13, 22:05 UTC55m
2026-07-13 SAS67L BGO → CPH Jul 13, 17:50 UTCJul 13, 18:55 UTC1h 5m
2026-07-13 SAS2872 CPH → BGO Jul 13, 15:50 UTCJul 13, 16:50 UTC1h 0m
2026-07-13 SAS31F TRD → CPH Jul 13, 13:10 UTCJul 13, 14:30 UTC1h 20m
2026-07-13 SAS24F CPH → TRD Jul 13, 11:05 UTCJul 13, 12:25 UTC1h 20m
2026-07-13 SAS1674 BER → CPH Jul 13, 08:25 UTCJul 13, 09:05 UTC40m
2026-07-13 SAS1673 CPH → BER Jul 13, 06:35 UTCJul 13, 07:20 UTC45m
2026-07-13 SAS2885 TRD → CPH Jul 13, 03:50 UTCJul 13, 05:05 UTC1h 15m
2026-07-12 SAS2884 CPH → TRD Jul 12, 21:20 UTCJul 12, 22:40 UTC1h 20m
2026-07-12 SAS560 - Jul 12, 18:50 UTCJul 12, 20:15 UTC1h 25m
2026-07-12 SAS73C CPH → CDG Jul 12, 15:50 UTCJul 12, 17:25 UTC1h 35m
2026-07-12 SAS31F TRD → CPH Jul 12, 13:35 UTCJul 12, 14:55 UTC1h 20m
2026-07-12 SAS24F CPH → TRD Jul 12, 11:15 UTCJul 12, 12:45 UTC1h 30m
2026-07-12 SAS62L - Jul 12, 08:55 UTCJul 12, 09:55 UTC1h 0m
2026-07-12 SAS2551 CPH → AMS Jul 12, 06:30 UTCJul 12, 07:40 UTC1h 10m
2026-07-11 SAS88P - Jul 11, 18:20 UTCJul 11, 20:00 UTC1h 40m
2026-07-11 SAS85A - Jul 11, 15:20 UTCJul 11, 17:15 UTC1h 55m
2026-07-11 SAS2747 PLQ → CPH Jul 11, 13:15 UTCJul 11, 14:05 UTC50m
2026-07-11 SAS2746 CPH → PLQ Jul 11, 11:30 UTCJul 11, 12:30 UTC1h 0m
2026-07-11 SAS1875 - Jul 11, 08:30 UTCJul 11, 09:25 UTC55m
2026-07-11 SAS1870 CPH → SVG Jul 11, 06:50 UTCJul 11, 07:45 UTC55m
2026-07-11 SAS2749 PLQ → CPH Jul 11, 03:55 UTCJul 11, 04:50 UTC55m
2026-07-10 SAS2744 CPH → PLQ Jul 10, 21:05 UTCJul 10, 22:05 UTC1h 0m
2026-07-10 SAS1879 - Jul 10, 17:50 UTCJul 10, 18:45 UTC55m
2026-07-10 SAS1874 CPH → SVG Jul 10, 16:10 UTCJul 10, 17:05 UTC55m
2026-07-10 SAS38D - Jul 10, 13:55 UTCJul 10, 14:50 UTC55m
2026-07-09 SAS1876 CPH → SVG Jul 9, 21:25 UTCJul 9, 22:20 UTC55m
2026-07-09 SAS1879 - Jul 9, 18:05 UTCJul 9, 18:55 UTC50m
2026-07-09 SAS1874 CPH → SVG Jul 9, 16:15 UTCJul 9, 17:10 UTC55m
2026-07-09 SAS38D - Jul 9, 14:10 UTCJul 9, 15:05 UTC55m
2026-07-09 SAS4481 - Jul 9, 12:25 UTCJul 9, 13:25 UTC1h 0m
2026-07-09 SAS4486 - Jul 9, 10:50 UTCJul 9, 11:45 UTC55m
2026-07-09 SAS4612 ABZ → SVG Jul 9, 09:15 UTCJul 9, 10:05 UTC50m
2026-07-09 SAS4611 - Jul 9, 07:05 UTCJul 9, 08:00 UTC55m
2026-07-09 SAS4135 BGO → SVG Jul 9, 05:25 UTCJul 9, 05:50 UTC25m
2026-07-09 SAS4154 - Jul 9, 04:20 UTCJul 9, 04:45 UTC25m
2026-07-08 SAS1876 CPH → SVG Jul 8, 21:30 UTCJul 8, 22:30 UTC1h 0m
2026-07-08 SAS43M - Jul 8, 18:50 UTCJul 8, 19:55 UTC1h 5m
2026-07-08 SAS69X CPH → BRU Jul 8, 16:40 UTCJul 8, 17:45 UTC1h 5m
2026-07-08 SAS70K - Jul 8, 13:55 UTCJul 8, 15:40 UTC1h 45m
2026-07-08 SAS61U - Jul 8, 10:55 UTCJul 8, 12:30 UTC1h 35m
2026-07-08 SAS1875 - Jul 8, 08:40 UTCJul 8, 09:30 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-RST page for operator, model, and routing details .

Mode-S 4ACA74 frequently asked

What is Mode-S code 4ACA74?
4ACA74 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RST.
Where is Mode-S 4ACA74 registered?
Mode-S code 4ACA74 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA74 broadcasting right now?
Yes. Mode-S 4ACA74 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA74, octal 22545164, decimal 4,901,492.
What flights does 4ACA74 operate?
Mode-S 4ACA74 has broadcast 20 distinct callsigns, including SAS2746, SAS2747, SAS2744, SAS2884, SAS2749.