sensors Mode-S transponder

4ACAA5

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RUE · AIRBUS A-320neo

Hex
4ACAA5
Octal
22545245
Decimal
4,901,541
Country
SE
Tail
SE-RUE
Type
A20N
No current signal · last broadcast 9h ago
Flights observed
488
Distinct callsigns
20
Country
SE
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 4ACAA5.

Country allocation

The ICAO 24-bit address 4ACAA5 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
SAS69L - 6 2026-07-12
SAS69C Scandinavian Airlines System 6 2026-06-11
SAS54T Scandinavian Airlines System 6 2026-06-11
SAS77K - 5 2026-07-12
SAS50J - 5 2026-06-30
SAS4417 Scandinavian Airlines System 5 2026-05-28
SAS4042 - 5 2026-07-05
SAS27E - 5 2026-06-17
SAS89C - 4 2026-07-01
SAS83G - 4 2026-06-30
SAS64P - 4 2026-07-01
SAS53F Scandinavian Airlines System 4 2026-05-28
SAS4095 - 4 2026-07-12
SAS4094 - 4 2026-07-12
SAS4043 Scandinavian Airlines System 4 2026-06-13
SAS2802 Scandinavian Airlines System 4 2026-05-16
SAS2801 Scandinavian Airlines System 4 2026-05-16
SAS274 - 4 2026-06-21
SAS236 Scandinavian Airlines System 4 2026-06-11
SAS1472 - 4 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SAS50L - Jul 14, 16:50 UTCJul 14, 19:30 UTC2h 40m
2026-07-14 SAS40A - Jul 14, 12:40 UTCJul 14, 15:20 UTC2h 40m
2026-07-14 SAS2674 - Jul 14, 08:15 UTCJul 14, 10:25 UTC2h 10m
2026-07-14 SAS2673 - Jul 14, 04:45 UTCJul 14, 06:35 UTC1h 50m
2026-07-13 SAS7744 - Jul 13, 19:35 UTCJul 13, 22:05 UTC2h 30m
2026-07-13 SAS7743 - Jul 13, 16:00 UTCJul 13, 18:15 UTC2h 15m
2026-07-13 SAS91A ARN → CPH Jul 13, 06:10 UTCJul 13, 07:01 UTC50m
2026-07-13 SAS400 CPH → ARN Jul 13, 04:05 UTCJul 13, 04:55 UTC50m
2026-07-12 SAS77K OSL → CPH Jul 12, 17:30 UTCJul 12, 18:25 UTC55m
2026-07-12 SAS4095 - Jul 12, 14:35 UTCJul 12, 15:50 UTC1h 15m
2026-07-12 SAS4094 - Jul 12, 12:15 UTCJul 12, 13:20 UTC1h 5m
2026-07-12 SAS50G CPH → OSL Jul 12, 10:01 UTCJul 12, 10:50 UTC50m
2026-07-12 SAS43C - Jul 12, 08:01 UTCJul 12, 08:55 UTC55m
2026-07-12 SAS69L - Jul 12, 04:10 UTCJul 12, 05:40 UTC1h 30m
2026-07-11 SAS4438 - Jul 11, 19:10 UTCJul 11, 20:25 UTC1h 15m
2026-07-11 SAS1470 CPH → OSL Jul 11, 17:20 UTCJul 11, 18:10 UTC50m
2026-07-11 SAS1465 - Jul 11, 15:35 UTCJul 11, 16:25 UTC50m
2026-07-11 SAS91K CPH → OSL Jul 11, 13:30 UTCJul 11, 14:30 UTC1h 0m
2026-07-11 SAS7746 - Jul 11, 09:20 UTCJul 11, 12:20 UTC3h 0m
2026-07-11 SAS7745 - Jul 11, 04:25 UTCJul 11, 07:10 UTC2h 45m
2026-07-10 SAS1910 - Jul 10, 18:55 UTCJul 10, 21:10 UTC2h 15m
2026-07-10 SAS1909 - Jul 10, 15:10 UTCJul 10, 17:25 UTC2h 15m
2026-07-10 SAS2118 VLC → CPH Jul 10, 11:20 UTCJul 10, 14:10 UTC2h 50m
2026-07-10 SAS2117 CPH → VLC Jul 10, 06:30 UTCJul 10, 09:20 UTC2h 50m
2026-07-10 SAS73A OSL → CPH Jul 10, 04:05 UTCJul 10, 05:00 UTC55m
2026-07-08 SAS1472 CPH → OSL Jul 8, 19:30 UTCJul 8, 20:30 UTC1h 0m
2026-07-08 SAS77K OSL → CPH Jul 8, 17:30 UTCJul 8, 18:20 UTC50m
2026-07-08 SAS32T CPH → OSL Jul 8, 15:10 UTCJul 8, 16:10 UTC1h 0m
2026-07-08 SAS47D - Jul 8, 10:20 UTCJul 8, 12:55 UTC2h 35m
2026-07-08 SAS81L - Jul 8, 06:35 UTCJul 8, 08:35 UTC2h 0m
2026-07-07 SAS2118 - Jul 7, 16:00 UTCJul 7, 18:55 UTC2h 55m
2026-07-07 SAS2117 CPH → VLC Jul 7, 12:00 UTCJul 7, 14:45 UTC2h 45m
2026-07-07 SAS1467 OSL → CPH Jul 7, 09:10 UTCJul 7, 10:05 UTC55m
2026-07-07 SAS83D - Jul 7, 07:10 UTCJul 7, 08:05 UTC55m
2026-07-07 SAS1463 - Jul 7, 05:10 UTCJul 7, 06:00 UTC50m
2026-07-06 SAS65G - Jul 6, 16:50 UTCJul 6, 20:15 UTC3h 25m
2026-07-06 SAS81P - Jul 6, 12:10 UTCJul 6, 15:30 UTC3h 20m
2026-07-06 SAS4842 ZRH → OSL Jul 6, 08:15 UTCJul 6, 10:25 UTC2h 10m
2026-07-06 SAS4841 - Jul 6, 04:55 UTCJul 6, 06:45 UTC1h 50m
2026-07-05 SAS4042 - Jul 5, 16:05 UTCJul 5, 16:45 UTC40m
2026-07-05 SAS7372 RHO → SVG Jul 5, 10:40 UTCJul 5, 14:50 UTC4h 10m
2026-07-05 SAS7371 - Jul 5, 05:20 UTCJul 5, 09:00 UTC3h 40m
2026-07-04 SAS85T ALC → SVG Jul 4, 19:00 UTCJul 4, 22:10 UTC3h 10m
2026-07-04 SAS4657 - Jul 4, 14:35 UTCJul 4, 17:40 UTC3h 5m
2026-07-04 SAS4762 SPU → SVG Jul 4, 10:05 UTCJul 4, 12:40 UTC2h 35m
2026-07-04 SAS4763 SVG → SPU Jul 4, 06:15 UTCJul 4, 08:25 UTC2h 10m
2026-07-03 SAS4051 - Jul 3, 20:15 UTCJul 3, 20:55 UTC40m
2026-07-03 SAS73B - Jul 3, 18:40 UTCJul 3, 19:15 UTC35m
2026-07-03 SAS364 - Jul 3, 17:20 UTCJul 3, 18:00 UTC40m
2026-07-03 SAS4680 - Jul 3, 09:20 UTCJul 3, 13:05 UTC3h 45m

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

Mode-S 4ACAA5 frequently asked

What is Mode-S code 4ACAA5?
4ACAA5 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RUE.
Where is Mode-S 4ACAA5 registered?
Mode-S code 4ACAA5 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACAA5 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACAA5, octal 22545245, decimal 4,901,541.
What flights does 4ACAA5 operate?
Mode-S 4ACAA5 has broadcast 20 distinct callsigns, including SAS69L, SAS69C, SAS54T, SAS77K, SAS50J.