sensors Mode-S transponder

4AC9EC

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9EC
Octal
22544754
Decimal
4,901,356
Country
SE
Tail
SE-ROL
Type
A20N
No current signal · last broadcast 42m ago
Flights observed
479
Distinct callsigns
20
Country
SE
Last broadcast
42m ago

Last known position

Most recent position reported by Mode-S 4AC9EC.

Country allocation

The ICAO 24-bit address 4AC9EC 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
SAS4434 - 10 2026-06-30
SAS44Z - 9 2026-07-01
SAS11M - 8 2026-07-09
SAS43D - 7 2026-06-17
SAS22E - 7 2026-07-09
SAS885 Scandinavian Airlines System 5 2026-06-02
SAS4730 - 5 2026-07-04
SAS4729 - 5 2026-07-04
SAS4122 Scandinavian Airlines System 5 2026-05-31
SAS39A Scandinavian Airlines System 5 2026-05-31
SAS91K - 4 2026-06-14
SAS87F - 4 2026-06-14
SAS83G Scandinavian Airlines System 4 2026-05-23
SAS816 - 4 2026-06-19
SAS804 - 4 2026-07-06
SAS78K Scandinavian Airlines System 4 2026-06-19
SAS53D - 4 2026-07-06
SAS50G - 4 2026-06-14
SAS48C Scandinavian Airlines System 4 2026-06-12
SAS4788 Scandinavian Airlines System 4 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SAS4633 - Jul 14, 07:45 UTCJul 14, 11:00 UTC3h 15m
2026-07-14 SAS4008 - Jul 14, 05:25 UTCJul 14, 06:05 UTC40m
2026-07-13 SAS85T - Jul 13, 18:30 UTCJul 13, 21:30 UTC3h 0m
2026-07-13 SAS4657 - Jul 13, 14:05 UTCJul 13, 17:15 UTC3h 10m
2026-07-13 SAS4762 - Jul 13, 09:35 UTCJul 13, 11:55 UTC2h 20m
2026-07-13 SAS4765 - Jul 13, 05:55 UTCJul 13, 08:15 UTC2h 20m
2026-07-12 SAS295 - Jul 12, 20:40 UTCJul 12, 21:15 UTC35m
2026-07-12 SAS4497 - Jul 12, 15:01 UTCJul 12, 16:25 UTC1h 25m
2026-07-11 SAS4496 - Jul 11, 15:05 UTCJul 12, 15:01 UTC23h 55m
2026-07-11 SAS4496 - Jul 11, 14:15 UTCJul 11, 15:35 UTC1h 20m
2026-07-11 SAS7384 - Jul 11, 09:25 UTCJul 11, 12:35 UTC3h 10m
2026-07-11 SAS7383 - Jul 11, 04:10 UTCJul 11, 07:05 UTC2h 55m
2026-07-10 SAS4634 - Jul 10, 19:35 UTCJul 10, 23:30 UTC3h 55m
2026-07-10 SAS4633 - Jul 10, 14:40 UTCJul 10, 18:05 UTC3h 25m
2026-07-10 SAS4680 - Jul 10, 09:20 UTCJul 10, 12:55 UTC3h 35m
2026-07-10 SAS4679 - Jul 10, 04:15 UTCJul 10, 07:55 UTC3h 40m
2026-07-09 SAS37A - Jul 9, 18:35 UTCJul 9, 21:50 UTC3h 15m
2026-07-09 SAS76F - Jul 9, 14:00 UTCJul 9, 17:20 UTC3h 20m
2026-07-09 SAS11M ALC → OSL Jul 9, 09:20 UTCJul 9, 12:55 UTC3h 35m
2026-07-09 SAS22E - Jul 9, 04:40 UTCJul 9, 08:00 UTC3h 20m
2026-07-08 SAS65G - Jul 8, 19:15 UTCJul 8, 22:40 UTC3h 25m
2026-07-08 SAS4653 - Jul 8, 14:10 UTCJul 8, 17:45 UTC3h 35m
2026-07-08 SAS4654 ALC → TRD Jul 8, 09:00 UTCJul 8, 13:10 UTC4h 10m
2026-07-08 SAS81P - Jul 8, 04:20 UTCJul 8, 07:35 UTC3h 15m
2026-07-07 SAS4692 - Jul 7, 19:20 UTCJul 7, 22:40 UTC3h 20m
2026-07-07 SAS98W - Jul 7, 13:40 UTCJul 7, 16:40 UTC3h 0m
2026-07-07 SAS4720 MXP → OSL Jul 7, 10:05 UTCJul 7, 12:30 UTC2h 25m
2026-07-07 SAS4719 - Jul 7, 06:05 UTCJul 7, 08:45 UTC2h 40m
2026-07-07 SAS339 TRD → OSL Jul 7, 04:15 UTCJul 7, 04:55 UTC40m
2026-07-06 SAS382 - Jul 6, 20:30 UTCJul 6, 21:10 UTC40m
2026-07-06 SAS810 - Jul 6, 16:45 UTCJul 6, 18:25 UTC1h 40m
2026-07-06 SAS809 OSL → LHR Jul 6, 13:25 UTCJul 6, 15:15 UTC1h 50m
2026-07-06 SAS804 - Jul 6, 09:55 UTCJul 6, 11:40 UTC1h 45m
2026-07-06 SAS53D OSL → LHR Jul 6, 06:20 UTCJul 6, 08:15 UTC1h 55m
2026-07-06 SAS238 BGO → OSL Jul 6, 04:20 UTCJul 6, 04:55 UTC35m
2026-07-05 SAS295 - Jul 5, 20:35 UTCJul 5, 21:15 UTC40m
2026-07-05 SAS4698 - Jul 5, 14:00 UTCJul 5, 19:00 UTC5h 0m
2026-07-05 SAS4697 - Jul 5, 06:55 UTCJul 5, 12:15 UTC5h 20m
2026-07-05 SAS238 BGO → OSL Jul 5, 04:05 UTCJul 5, 04:40 UTC35m
2026-07-04 SAS4730 - Jul 4, 20:30 UTCJul 4, 23:45 UTC3h 15m
2026-07-04 SAS4961 - Jul 4, 15:55 UTCJul 4, 18:55 UTC3h 0m
2026-07-04 SAS4962 ALC → KRS Jul 4, 10:45 UTCJul 4, 14:00 UTC3h 15m
2026-07-04 SAS4729 BGO → ALC Jul 4, 06:10 UTCJul 4, 09:35 UTC3h 25m
2026-07-03 SAS4652 - Jul 3, 18:55 UTCJul 3, 22:30 UTC3h 35m
2026-07-03 SAS4651 - Jul 3, 13:55 UTCJul 3, 17:30 UTC3h 35m
2026-07-03 SAS4730 - Jul 3, 08:50 UTCJul 3, 12:20 UTC3h 30m
2026-07-03 SAS4729 - Jul 3, 04:25 UTCJul 3, 07:35 UTC3h 10m
2026-07-02 SAS4730 - Jul 2, 18:00 UTCJul 2, 21:15 UTC3h 15m
2026-07-02 SAS4657 - Jul 2, 13:25 UTCJul 2, 16:30 UTC3h 5m
2026-07-02 SAS85T - Jul 2, 09:15 UTCJul 2, 12:25 UTC3h 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-ROL page for operator, model, and routing details .

Mode-S 4AC9EC frequently asked

What is Mode-S code 4AC9EC?
4AC9EC is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROL.
Where is Mode-S 4AC9EC registered?
Mode-S code 4AC9EC is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9EC broadcasting right now?
No active broadcast right now. Last signal was 42m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9EC, octal 22544754, decimal 4,901,356.
What flights does 4AC9EC operate?
Mode-S 4AC9EC has broadcast 20 distinct callsigns, including SAS4434, SAS44Z, SAS11M, SAS43D, SAS22E.