Apparatus

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sensors Mode-S transponder

4AC9EA

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9EA
Octal
22544752
Decimal
4,901,354
Country
SE
Tail
SE-ROJ
Type
A20N
Broadcasting now · callsign SAS4472 · 37,000 ft
Flights observed
469
Distinct callsigns
20
Country
SE
Last broadcast
2h ago

Current position

4AC9EA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4AC9EA 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
SAS97F - 5 2026-06-22
SAS83G - 5 2026-06-25
SAS834 - 5 2026-06-22
SAS50J - 5 2026-06-25
SAS4788 - 5 2026-06-25
SAS4787 - 5 2026-06-25
SAS4079 - 5 2026-07-15
SAS22E - 5 2026-06-28
SAS11M - 5 2026-06-29
SAS98K - 4 2026-06-19
SAS96D Scandinavian Airlines System 4 2026-06-16
SAS868 Scandinavian Airlines System 4 2026-06-15
SAS867 Scandinavian Airlines System 4 2026-06-15
SAS73B - 4 2026-06-22
SAS69B - 4 2026-06-19
SAS54B Scandinavian Airlines System 4 2026-06-03
SAS44Z - 4 2026-06-29
SAS42G Scandinavian Airlines System 4 2026-06-18
SAS4117 Scandinavian Airlines System 4 2026-06-16
SAS4098 - 4 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SAS4079 - Jul 15, 04:30 UTCJul 15, 05:40 UTC1h 10m
2026-07-14 SAS4098 - Jul 14, 20:05 UTCJul 14, 21:20 UTC1h 15m
2026-07-14 SAS810 - Jul 14, 16:55 UTCJul 14, 18:40 UTC1h 45m
2026-07-14 SAS809 OSL → LHR Jul 14, 13:15 UTCJul 14, 15:05 UTC1h 50m
2026-07-14 SAS804 - Jul 14, 09:55 UTCJul 14, 11:45 UTC1h 50m
2026-07-14 SAS53D OSL → LHR Jul 14, 06:10 UTCJul 14, 08:10 UTC2h 0m
2026-07-13 SAS65G ALC → OSL Jul 13, 17:05 UTCJul 13, 20:30 UTC3h 25m
2026-07-13 SAS81P OSL → ALC Jul 13, 12:10 UTCJul 13, 15:55 UTC3h 45m
2026-07-13 SAS822 - Jul 13, 09:10 UTCJul 13, 10:35 UTC1h 25m
2026-07-13 SAS821 OSL → AMS Jul 13, 06:15 UTCJul 13, 07:40 UTC1h 25m
2026-07-12 SAS1474 CPH → OSL Jul 12, 22:05 UTCJul 12, 22:55 UTC50m
2026-07-12 SAS40G ARN → CPH Jul 12, 19:15 UTCJul 12, 20:10 UTC55m
2026-07-12 SAS1484 OSL → ARN Jul 12, 16:35 UTCJul 12, 17:20 UTC45m
2026-07-12 SAS499 ARN → OSL Jul 12, 14:50 UTCJul 12, 15:30 UTC40m
2026-07-12 SAS2932 NCE → ARN Jul 12, 11:20 UTCJul 12, 13:55 UTC2h 35m
2026-07-12 SAS2931 ARN → NCE Jul 12, 06:55 UTCJul 12, 09:35 UTC2h 40m
2026-07-11 SAS1810 - Jul 11, 18:05 UTCJul 11, 21:35 UTC3h 30m
2026-07-11 SAS1809 - Jul 11, 13:20 UTCJul 11, 16:30 UTC3h 10m
2026-07-10 SAS1410 CPH → ARN Jul 10, 19:35 UTCJul 10, 20:30 UTC55m
2026-07-10 SAS39C ARN → CPH Jul 10, 17:40 UTCJul 10, 18:30 UTC50m
2026-07-10 SAS76H MAN → ARN Jul 10, 10:00 UTCJul 10, 12:05 UTC2h 5m
2026-07-10 SAS61E ARN → MAN Jul 10, 05:40 UTCJul 10, 08:00 UTC2h 20m
2026-07-09 SAS2932 NCE → ARN Jul 9, 18:05 UTCJul 9, 20:55 UTC2h 50m
2026-07-09 SAS2931 ARN → NCE Jul 9, 14:10 UTCJul 9, 16:45 UTC2h 35m
2026-07-09 SAS42E - Jul 9, 10:05 UTCJul 9, 11:00 UTC55m
2026-07-09 SAS41K ARN → CPH Jul 9, 08:05 UTCJul 9, 08:55 UTC50m
2026-07-09 SAS46M CPH → ARN Jul 9, 06:10 UTCJul 9, 07:05 UTC55m
2026-07-08 SAS554 - Jul 8, 19:25 UTCJul 8, 20:20 UTC55m
2026-07-08 SAS49M CPH → AMS Jul 8, 16:25 UTCJul 8, 17:25 UTC1h 0m
2026-07-08 SAS1407 ARN → CPH Jul 8, 13:10 UTCJul 8, 14:00 UTC50m
2026-07-08 SAS61A - Jul 8, 11:15 UTCJul 8, 12:10 UTC55m
2026-07-07 SAS71G KEF → CPH Jul 7, 18:10 UTCJul 7, 20:35 UTC2h 25m
2026-07-07 SAS2595 - Jul 7, 13:55 UTCJul 7, 17:10 UTC3h 15m
2026-07-07 SAS2674 TIV → CPH Jul 7, 08:25 UTCJul 7, 10:40 UTC2h 15m
2026-07-07 SAS2673 - Jul 7, 04:45 UTCJul 7, 06:40 UTC1h 55m
2026-07-06 SAS2814 - Jul 6, 18:10 UTCJul 6, 21:10 UTC3h 0m
2026-07-06 SAS2813 - Jul 6, 13:50 UTCJul 6, 16:50 UTC3h 0m
2026-07-06 SAS87F - Jul 6, 11:55 UTCJul 6, 12:45 UTC50m
2026-07-06 SAS50G - Jul 6, 10:00 UTCJul 6, 11:00 UTC1h 0m
2026-07-06 SAS43C OSL → CPH Jul 6, 08:10 UTCJul 6, 08:55 UTC45m
2026-07-06 SAS52L - Jul 6, 06:20 UTCJul 6, 07:10 UTC50m
2026-07-06 SAS73A OSL → CPH Jul 6, 04:20 UTCJul 6, 05:10 UTC50m
2026-07-05 SAS4956 RHO → OSL Jul 5, 15:20 UTCJul 5, 19:25 UTC4h 5m
2026-07-05 SAS4955 OSL → RHO Jul 5, 10:30 UTCJul 5, 14:05 UTC3h 35m
2026-07-04 SAS1474 CPH → OSL Jul 4, 21:30 UTCJul 4, 22:15 UTC45m
2026-07-04 SAS88P DUB → CPH Jul 4, 18:25 UTCJul 4, 20:05 UTC1h 40m
2026-07-04 SAS85A RKE → DUB Jul 4, 15:35 UTCJul 4, 17:30 UTC1h 55m
2026-07-04 SAS37L - Jul 4, 11:20 UTCJul 4, 14:30 UTC3h 10m
2026-07-04 SAS2817 - Jul 4, 06:50 UTCJul 4, 09:40 UTC2h 50m
2026-07-03 SAS2674 - Jul 3, 18:35 UTCJul 3, 20:45 UTC2h 10m

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

Mode-S 4AC9EA frequently asked

What is Mode-S code 4AC9EA?
4AC9EA is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROJ.
Where is Mode-S 4AC9EA registered?
Mode-S code 4AC9EA is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9EA broadcasting right now?
Yes. Mode-S 4AC9EA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9EA, octal 22544752, decimal 4,901,354.
What flights does 4AC9EA operate?
Mode-S 4AC9EA has broadcast 20 distinct callsigns, including SAS97F, SAS83G, SAS834, SAS50J, SAS4788.