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
297
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 SAS409 ARN → CPH Jun 2, 17:15 UTCJun 2, 18:10 UTC55m
2026-06-02 SAS89A CPH → ARN Jun 2, 15:35 UTCJun 2, 16:30 UTC55m
2026-06-02 SAS1214 AAL → CPH Jun 2, 12:40 UTCJun 2, 13:10 UTC30m
2026-06-02 SAS1213 CPH → AAL Jun 2, 11:20 UTCJun 2, 11:50 UTC30m
2026-06-02 SAS52R WAW → CPH Jun 2, 08:30 UTCJun 2, 09:30 UTC1h 0m
2026-06-02 SAS751 CPH → WAW Jun 2, 06:30 UTCJun 2, 07:35 UTC1h 5m
2026-06-02 SAS2861 BGO → CPH Jun 2, 04:10 UTCJun 2, 05:15 UTC1h 5m
2026-06-01 SAS2874 CPH → BGO Jun 1, 21:05 UTCJun 1, 22:10 UTC1h 5m
2026-06-01 SAS554 AMS → CPH Jun 1, 18:55 UTCJun 1, 19:50 UTC55m
2026-06-01 SAS49M CPH → AMS Jun 1, 16:55 UTCJun 1, 17:55 UTC1h 0m
2026-06-01 SAS2479 BOO → CPH Jun 1, 12:50 UTCJun 1, 14:40 UTC1h 50m
2026-06-01 SAS2478 CPH → BOO Jun 1, 10:10 UTCJun 1, 11:55 UTC1h 45m
2026-06-01 SAS1674 BER → CPH Jun 1, 08:35 UTCJun 1, 09:15 UTC40m
2026-06-01 SAS1673 CPH → BER Jun 1, 06:25 UTCJun 1, 07:10 UTC45m
2026-05-31 SAS413 ARN → CPH May 31, 20:15 UTCMay 31, 21:10 UTC55m
2026-05-31 SAS412 CPH → ARN May 31, 18:15 UTCMay 31, 19:05 UTC50m
2026-05-31 SAS409 ARN → CPH May 31, 16:15 UTCMay 31, 17:10 UTC55m
2026-05-31 SAS89A CPH → ARN May 31, 14:10 UTCMay 31, 15:05 UTC55m
2026-05-31 SAS7772 LPA → CPH May 31, 09:35 UTCMay 31, 12:55 UTC3h 20m
2026-05-30 SAS2776 CPH → LCA May 30, 19:10 UTCMay 30, 23:10 UTC4h 0m
2026-05-30 SAS2775 LCA → CPH May 30, 13:35 UTCMay 30, 17:00 UTC3h 25m
2026-05-30 SAS7746 HRG → BLL May 30, 09:15 UTCMay 30, 12:25 UTC3h 10m
2026-05-30 SAS7745 BLL → HRG May 30, 04:20 UTCMay 30, 07:00 UTC2h 40m
2026-05-29 SAS2514 EDI → CPH May 29, 18:30 UTCMay 29, 19:55 UTC1h 25m
2026-05-29 SAS2513 CPH → EDI May 29, 15:45 UTCMay 29, 17:25 UTC1h 40m
2026-05-29 SAS1778 FAE → CPH May 29, 09:35 UTCMay 29, 14:45 UTC5h 10m
2026-05-29 SAS48P GOT → CPH May 29, 08:15 UTCMay 29, 08:40 UTC25m
2026-05-29 SAS434 CPH → GOT May 29, 06:55 UTCMay 29, 07:25 UTC30m
2026-05-29 SAS1202 AAL → CPH May 29, 05:00 UTCMay 29, 05:30 UTC30m
2026-05-28 SAS1221 CPH → AAL May 28, 19:25 UTCMay 28, 19:55 UTC30m
2026-05-28 SAS588 AGP → CPH May 28, 10:50 UTCMay 28, 14:10 UTC3h 20m
2026-05-28 SAS63Y CPH → AGP May 28, 06:05 UTCMay 28, 09:20 UTC3h 15m
2026-05-27 SAS28K GVA → CPH May 27, 18:20 UTCMay 27, 19:55 UTC1h 35m
2026-05-27 SAS56H CPH → GVA May 27, 15:45 UTCMay 27, 17:25 UTC1h 40m
2026-05-27 SAS42R AMS → CPH May 27, 13:15 UTCMay 27, 14:10 UTC55m
2026-05-27 SAS87Y CPH → AMS May 27, 10:50 UTCMay 27, 11:50 UTC1h 0m
2026-05-27 SAS62L AMS → CPH May 27, 08:50 UTCMay 27, 09:45 UTC55m
2026-05-27 SAS2551 CPH → AMS May 27, 06:34 UTCMay 27, 07:45 UTC1h 10m
2026-05-26 SAS2822 GZP → CPH May 26, 16:24 UTCMay 26, 20:00 UTC3h 35m
2026-05-26 SAS2821 CPH → GZP May 26, 12:05 UTCMay 26, 15:24 UTC3h 20m
2026-05-26 SAS540 MAN → CPH May 26, 08:59 UTCMay 26, 10:25 UTC1h 25m
2026-05-26 SAS67C CPH → MAN May 26, 06:14 UTCMay 26, 07:49 UTC1h 35m
2026-05-26 SAS1228 AAL → CPH May 26, 04:24 UTCMay 26, 04:54 UTC30m
2026-05-25 SAS1221 CPH → AAL May 25, 19:35 UTCMay 25, 20:04 UTC30m
2026-05-25 SAS1204 AAL → CPH May 25, 17:00 UTCMay 25, 17:25 UTC25m
2026-05-25 SAS1203 CPH → AAL May 25, 15:50 UTCMay 25, 16:20 UTC30m
2026-05-25 SAS53T CPH → FAE May 25, 09:45 UTCMay 25, 14:35 UTC4h 50m
2026-05-25 SAS48P GOT → CPH May 25, 08:10 UTCMay 25, 08:40 UTC30m
2026-05-25 SAS434 CPH → GOT May 25, 06:45 UTCMay 25, 07:15 UTC30m
2026-05-24 SAS554 AMS → CPH May 24, 18:50 UTCMay 24, 19:45 UTC55m

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, SAS68L, SAS554, SAS49M.