Apparatus

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sensors Mode-S transponder

4AC9EE

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9EE
Octal
22544756
Decimal
4,901,358
Country
SE
Tail
SE-RON
Type
A20N
No current signal · last broadcast 2h ago
Flights observed
489
Distinct callsigns
20
Country
SE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4AC9EE.

Country allocation

The ICAO 24-bit address 4AC9EE 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
SAS48P Scandinavian Airlines System 6 2026-06-03
SAS434 Scandinavian Airlines System 6 2026-06-03
SAS2865 - 6 2026-06-29
SAS2862 - 6 2026-06-29
SAS2822 - 6 2026-07-15
SAS554 Scandinavian Airlines System 5 2026-06-15
SAS49M Scandinavian Airlines System 5 2026-06-15
SAS2874 - 5 2026-06-21
SAS2821 - 5 2026-07-15
SAS87Y Scandinavian Airlines System 4 2026-06-11
SAS82K - 4 2026-07-09
SAS68L Scandinavian Airlines System 4 2026-04-17
SAS53T - 4 2026-07-07
SAS42R Scandinavian Airlines System 4 2026-06-11
SAS2861 - 4 2026-06-22
SAS22H - 4 2026-07-17
SAS1555 - 4 2026-07-08
SAS1475 - 4 2026-07-04
SAS1228 - 4 2026-06-20
SAS1221 Scandinavian Airlines System 4 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SAS34Y - Jul 17, 17:25 UTCJul 17, 19:40 UTC2h 15m
2026-07-17 SAS182Y CPH → TOS Jul 17, 14:10 UTCJul 17, 16:04 UTC1h 55m
2026-07-17 SAS463 OSL → CPH Jul 17, 11:55 UTCJul 17, 12:45 UTC50m
2026-07-17 SAS50G CPH → OSL Jul 17, 09:55 UTCJul 17, 10:44 UTC50m
2026-07-17 SAS22H ARN → CPH Jul 17, 07:14 UTCJul 17, 08:10 UTC55m
2026-07-17 SAS44D CPH → ARN Jul 17, 05:15 UTCJul 17, 06:10 UTC55m
2026-07-16 SAS2788 - Jul 16, 17:20 UTCJul 16, 18:59 UTC1h 40m
2026-07-16 SAS2787 - Jul 16, 14:20 UTCJul 16, 16:00 UTC1h 40m
2026-07-16 SAS7438 - Jul 16, 07:45 UTCJul 16, 10:50 UTC3h 5m
2026-07-16 SAS7437 - Jul 16, 03:00 UTCJul 16, 06:00 UTC3h 0m
2026-07-15 SAS2822 - Jul 15, 20:45 UTCJul 15, 21:00 UTC15m
2026-07-15 SAS2822 - Jul 15, 17:25 UTCJul 15, 19:45 UTC2h 20m
2026-07-15 SAS2821 - Jul 15, 13:00 UTCJul 15, 16:25 UTC3h 25m
2026-07-15 SAS2836 - Jul 15, 07:20 UTCJul 15, 09:05 UTC1h 45m
2026-07-15 SAS2835 - Jul 15, 04:45 UTCJul 15, 06:20 UTC1h 35m
2026-07-14 SAS2118 - Jul 14, 16:05 UTCJul 14, 18:50 UTC2h 45m
2026-07-14 SAS2117 CPH → VLC Jul 14, 11:55 UTCJul 14, 14:45 UTC2h 50m
2026-07-13 SAS2814 - Jul 13, 18:00 UTCJul 13, 20:50 UTC2h 50m
2026-07-13 SAS2813 CPH → ALC Jul 13, 13:50 UTCJul 13, 16:55 UTC3h 5m
2026-07-13 SAS7768 - Jul 13, 09:05 UTCJul 13, 12:15 UTC3h 10m
2026-07-13 SAS7767 - Jul 13, 04:45 UTCJul 13, 07:50 UTC3h 5m
2026-07-12 SAS2978 ALC → CPH Jul 12, 18:05 UTCJul 12, 20:50 UTC2h 45m
2026-07-12 SAS2977 - Jul 12, 14:01 UTCJul 12, 17:01 UTC3h 0m
2026-07-12 SAS2822 - Jul 12, 08:35 UTCJul 12, 12:01 UTC3h 25m
2026-07-12 SAS2821 - Jul 12, 04:20 UTCJul 12, 07:35 UTC3h 15m
2026-07-11 SAS2676 - Jul 11, 19:50 UTCJul 11, 22:01 UTC2h 10m
2026-07-11 SAS2675 - Jul 11, 15:30 UTCJul 11, 17:25 UTC1h 55m
2026-07-11 SAS1914 - Jul 11, 09:50 UTCJul 11, 12:50 UTC3h 0m
2026-07-11 SAS1913 - Jul 11, 05:25 UTCJul 11, 08:15 UTC2h 50m
2026-07-10 SAS40G ARN → CPH Jul 10, 19:10 UTCJul 10, 20:00 UTC50m
2026-07-10 SAS1430 CPH → ARN Jul 10, 17:15 UTCJul 10, 18:05 UTC50m
2026-07-10 SAS463 OSL → CPH Jul 10, 11:50 UTCJul 10, 12:45 UTC55m
2026-07-10 SAS50G CPH → OSL Jul 10, 10:05 UTCJul 10, 10:55 UTC50m
2026-07-10 SAS43C OSL → CPH Jul 10, 08:10 UTCJul 10, 09:05 UTC55m
2026-07-10 SAS52L CPH → OSL Jul 10, 06:30 UTCJul 10, 07:20 UTC50m
2026-07-09 SAS22H ARN → CPH Jul 9, 07:10 UTCJul 9, 08:00 UTC50m
2026-07-09 SAS82K - Jul 9, 04:15 UTCJul 9, 05:20 UTC1h 5m
2026-07-08 SAS22Y - Jul 8, 20:30 UTCJul 8, 21:25 UTC55m
2026-07-08 SAS1556 - Jul 8, 17:55 UTCJul 8, 19:35 UTC1h 40m
2026-07-08 SAS1555 ARN → AMS Jul 8, 15:05 UTCJul 8, 16:35 UTC1h 30m
2026-07-08 SAS55A - Jul 8, 09:45 UTCJul 8, 13:30 UTC3h 45m
2026-07-08 SAS35K ARN → ALC Jul 8, 04:45 UTCJul 8, 08:15 UTC3h 30m
2026-07-07 SAS1410 CPH → ARN Jul 7, 19:35 UTCJul 7, 20:30 UTC55m
2026-07-07 SAS53T - Jul 7, 09:40 UTCJul 7, 14:30 UTC4h 50m
2026-07-07 SAS22H ARN → CPH Jul 7, 07:15 UTCJul 7, 08:10 UTC55m
2026-07-07 SAS44D - Jul 7, 05:05 UTCJul 7, 05:55 UTC50m
2026-07-06 SAS2782 BOD → CPH Jul 6, 17:35 UTCJul 6, 19:40 UTC2h 5m
2026-07-06 SAS2781 - Jul 6, 14:20 UTCJul 6, 16:30 UTC2h 10m
2026-07-06 SAS7762 - Jul 6, 08:20 UTCJul 6, 11:55 UTC3h 35m
2026-07-06 SAS7761 - Jul 6, 03:45 UTCJul 6, 06:40 UTC2h 55m

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

Mode-S 4AC9EE frequently asked

What is Mode-S code 4AC9EE?
4AC9EE is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RON.
Where is Mode-S 4AC9EE registered?
Mode-S code 4AC9EE is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9EE 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 4AC9EE, octal 22544756, decimal 4,901,358.
What flights does 4AC9EE operate?
Mode-S 4AC9EE has broadcast 20 distinct callsigns, including SAS48P, SAS434, SAS2865, SAS2862, SAS2822.