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 Jul 26, 17:10 UTC
Flights observed
528
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 17:10 UTC

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 Scandinavian Airlines System 9 2026-07-20
SAS43D - 7 2026-06-17
SAS22E - 7 2026-07-09
SAS4788 Scandinavian Airlines System 6 2026-07-21
SAS4787 Scandinavian Airlines System 6 2026-07-21
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
SAS4098 Scandinavian Airlines System 5 2026-07-24
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
SAS7381 Scandinavian Airlines System 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS73B TRD → OSL Jul 26, 16:25 UTCJul 26, 17:05 UTC40m
2026-07-26 SAS7374 RHO → TRD Jul 26, 11:05 UTCJul 26, 15:20 UTC4h 15m
2026-07-26 SAS7373 TRD → RHO Jul 26, 04:55 UTCJul 26, 09:00 UTC4h 6m
2026-07-25 SAS54B OSL → TRD Jul 25, 20:45 UTCJul 25, 21:25 UTC40m
2026-07-25 SAS1327 AES → OSL Jul 25, 19:20 UTCJul 25, 19:55 UTC35m
2026-07-25 SAS7302 CHQ → AES Jul 25, 13:55 UTCJul 25, 18:00 UTC4h 5m
2026-07-25 SAS7381 EVE → CHQ Jul 25, 07:40 UTCJul 25, 11:50 UTC4h 10m
2026-07-24 SAS4098 OSL → EVE Jul 24, 20:15 UTCJul 24, 21:20 UTC1h 5m
2026-07-24 SAS86Y LHR → OSL Jul 24, 16:40 UTCJul 24, 18:25 UTC1h 45m
2026-07-24 SAS809 OSL → LHR Jul 24, 13:15 UTCJul 24, 15:00 UTC1h 45m
2026-07-24 SAS7392 KGS → BGO Jul 24, 08:45 UTCJul 24, 12:10 UTC3h 25m
2026-07-24 SAS7391 BGO → KGS Jul 24, 04:10 UTCJul 24, 06:50 UTC2h 40m
2026-07-23 SAS46B AGP → OSL Jul 23, 19:25 UTCJul 23, 23:05 UTC3h 40m
2026-07-23 SAS38R OSL → AGP Jul 23, 14:15 UTCJul 23, 17:45 UTC3h 30m
2026-07-22 SAS4698 LPA → OSL Jul 22, 16:10 UTCJul 22, 21:10 UTC5h 0m
2026-07-22 SAS4697 OSL → LPA Jul 22, 10:20 UTCJul 22, 14:25 UTC4h 5m
2026-07-21 SAS4734 SPU → OSL Jul 21, 17:30 UTCJul 21, 20:00 UTC2h 30m
2026-07-21 SAS4733 - Jul 21, 13:45 UTCJul 21, 15:55 UTC2h 10m
2026-07-21 SAS4788 KEF → OSL Jul 21, 09:35 UTCJul 21, 11:45 UTC2h 10m
2026-07-21 SAS4787 OSL → KEF Jul 21, 05:40 UTCJul 21, 08:25 UTC2h 45m
2026-07-20 SAS11M ALC → OSL Jul 20, 17:35 UTCJul 20, 21:00 UTC3h 25m
2026-07-20 SAS76F OSL → ALC Jul 20, 12:50 UTCJul 20, 16:20 UTC3h 30m
2026-07-20 SAS4472 OSL → KKN Jul 20, 07:05 UTCJul 20, 11:25 UTC4h 20m
2026-07-20 SAS4079 EVE → OSL Jul 20, 04:25 UTCJul 20, 05:40 UTC1h 15m
2026-07-19 SAS4098 - Jul 19, 20:05 UTCJul 19, 21:10 UTC1h 5m
2026-07-19 SAS4788 - Jul 19, 16:50 UTCJul 19, 19:00 UTC2h 10m
2026-07-19 SAS4787 OSL → KEF Jul 19, 12:45 UTCJul 19, 15:30 UTC2h 45m
2026-07-19 SAS4491 LYR → OSL Jul 19, 05:20 UTCJul 19, 11:35 UTC6h 15m
2026-07-18 SAS4097 - Jul 18, 18:50 UTCJul 18, 20:10 UTC1h 20m
2026-07-18 SAS7382 CHQ → EVE Jul 18, 12:55 UTCJul 18, 17:15 UTC4h 20m
2026-07-18 SAS7301 AES → CHQ Jul 18, 07:40 UTCJul 18, 11:30 UTC3h 50m
2026-07-18 SAS6300 - Jul 18, 05:25 UTCJul 18, 06:00 UTC35m
2026-07-17 SAS2308 - Jul 17, 17:20 UTCJul 17, 18:00 UTC40m
2026-07-17 SAS7406 CHQ → KSU Jul 17, 11:39 UTCJul 17, 15:40 UTC4h 0m
2026-07-17 SAS7405 OSL → CHQ Jul 17, 05:50 UTCJul 17, 09:50 UTC4h 0m
2026-07-16 SAS2309 - Jul 16, 20:35 UTCJul 16, 21:05 UTC30m
2026-07-16 SAS20W MXP → OSL Jul 16, 17:10 UTCJul 16, 19:25 UTC2h 15m
2026-07-16 SAS4717 - Jul 16, 13:34 UTCJul 16, 16:00 UTC2h 25m
2026-07-16 SAS4720 MXP → OSL Jul 16, 10:10 UTCJul 16, 12:20 UTC2h 10m
2026-07-16 SAS4719 OSL → MXP Jul 16, 06:05 UTCJul 16, 08:35 UTC2h 30m
2026-07-16 SAS339 TRD → OSL Jul 16, 04:00 UTCJul 16, 04:45 UTC45m
2026-07-15 SAS382 OSL → TRD Jul 15, 20:35 UTCJul 15, 21:15 UTC40m
2026-07-15 SAS4706 NCE → OSL Jul 15, 16:45 UTCJul 15, 19:15 UTC2h 30m
2026-07-15 SAS4705 OSL → NCE Jul 15, 12:35 UTCJul 15, 15:05 UTC2h 30m
2026-07-15 SAS32H - Jul 15, 08:40 UTCJul 15, 11:30 UTC2h 50m
2026-07-15 SAS4713 - Jul 15, 04:20 UTCJul 15, 07:00 UTC2h 40m
2026-07-14 SAS1472 CPH → OSL Jul 14, 19:35 UTCJul 14, 20:25 UTC50m
2026-07-14 SAS77K OSL → CPH Jul 14, 17:45 UTCJul 14, 18:35 UTC50m
2026-07-14 SAS4634 - Jul 14, 12:50 UTCJul 14, 16:40 UTC3h 50m
2026-07-14 SAS4633 - Jul 14, 07:45 UTCJul 14, 11:25 UTC3h 40m

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 Jul 26, 17:10 UTC.
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.