sensors Mode-S transponder

4AC9E6

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9E6
Octal
22544746
Decimal
4,901,350
Country
SE
Tail
SE-ROF
Type
A20N
No current signal · last broadcast 1h ago
Flights observed
259
Distinct callsigns
20
Country
SE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4AC9E6.

Country allocation

The ICAO 24-bit address 4AC9E6 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
2026-05-30 SAS2595 KEF → CPH May 30, 06:45 UTCMay 30, 07:30 UTC45m
2026-05-29 SAS71G KEF → CPH May 29, 17:45 UTCMay 29, 20:30 UTC2h 45m
2026-05-29 SAS2595 KEF → CPH May 29, 13:45 UTCMay 29, 16:35 UTC2h 51m
2026-05-29 SAS42K FCO → CPH May 29, 10:15 UTCMay 29, 12:20 UTC2h 5m
2026-05-29 SAS49L CPH → FCO May 29, 06:45 UTCMay 29, 08:50 UTC2h 5m
2026-05-28 SAS47D NAP → CPH May 28, 17:55 UTCMay 28, 20:20 UTC2h 25m
2026-05-28 SAS81L CPH → CDG May 28, 14:25 UTCMay 28, 16:25 UTC2h 0m
2026-05-28 SAS2814 ALC → CPH May 28, 10:00 UTCMay 28, 12:55 UTC2h 55m
2026-05-28 SAS2813 CPH → ALC May 28, 05:30 UTCMay 28, 08:30 UTC3h 0m
2026-05-27 SAS1910 BIO → CPH May 27, 17:50 UTCMay 27, 20:05 UTC2h 15m
2026-05-27 SAS1909 CPH → BIO May 27, 14:00 UTCMay 27, 16:25 UTC2h 25m
2026-05-27 SAS2518 BRI → CPH May 27, 10:30 UTCMay 27, 12:55 UTC2h 25m
2026-05-27 SAS2517 CPH → BRI May 27, 07:00 UTCMay 27, 09:10 UTC2h 10m
2026-05-26 SAS588 AGP → CPH May 26, 09:04 UTCMay 26, 12:20 UTC3h 15m
2026-05-26 SAS63Y CPH → AGP May 26, 04:15 UTCMay 26, 07:34 UTC3h 20m
2026-05-25 SAS449 GOT → CPH May 25, 18:30 UTCMay 25, 18:55 UTC25m
2026-05-25 SAS1444 CPH → GOT May 25, 17:20 UTCMay 25, 17:55 UTC35m
2026-05-25 SAS1692 FCO → CPH May 25, 12:30 UTCMay 25, 14:35 UTC2h 5m
2026-05-25 SAS1691 CPH → FCO May 25, 08:40 UTCMay 25, 10:50 UTC2h 10m
2026-05-24 SAS65K PMO → CPH May 24, 16:25 UTCMay 24, 19:00 UTC2h 35m
2026-05-24 SAS2695 CPH → PMO May 24, 12:25 UTCMay 24, 14:50 UTC2h 25m
2026-05-24 SAS2832 SPU → CPH May 24, 08:15 UTCMay 24, 10:05 UTC1h 50m
2026-05-24 SAS2831 CPH → SPU May 24, 05:10 UTCMay 24, 06:45 UTC1h 35m
2026-05-23 SAS42R AMS → CPH May 23, 13:35 UTCMay 23, 14:40 UTC1h 5m
2026-05-23 SAS87Y CPH → AMS May 23, 11:35 UTCMay 23, 12:35 UTC1h 0m
2026-05-23 SAS22H ARN → CPH May 23, 07:10 UTCMay 23, 08:05 UTC55m
2026-05-23 SAS44D CPH → ARN May 23, 05:25 UTCMay 23, 06:20 UTC55m
2026-05-23 SAS9230 LHR → BGO May 23, 01:10 UTCMay 23, 01:55 UTC45m
2026-05-22 SAS7376 KGS → OSL May 22, 20:35 UTCMay 23, 00:20 UTC3h 45m
2026-05-22 SAS7375 OSL → KGS May 22, 16:35 UTCMay 22, 19:30 UTC2h 55m
2026-05-22 SAS22H ARN → CPH May 22, 07:10 UTCMay 22, 07:55 UTC45m
2026-05-22 SAS44D CPH → ARN May 22, 05:10 UTCMay 22, 06:10 UTC1h 0m
2026-05-21 SAS413 ARN → CPH May 21, 20:10 UTCMay 21, 21:10 UTC1h 0m
2026-05-21 SAS412 CPH → ARN May 21, 18:25 UTCMay 21, 19:20 UTC55m
2026-05-21 SAS409 ARN → CPH May 21, 16:35 UTCMay 21, 17:25 UTC50m
2026-05-21 SAS89A CPH → ARN May 21, 14:30 UTCMay 21, 15:35 UTC1h 5m
2026-05-21 SAS87F OSL → CPH May 21, 11:50 UTCMay 21, 12:40 UTC50m
2026-05-21 SAS50G CPH → OSL May 21, 10:00 UTCMay 21, 11:00 UTC1h 0m
2026-05-20 SAS28K GVA → CPH May 20, 18:25 UTCMay 20, 20:10 UTC1h 45m
2026-05-20 SAS56H CPH → GVA May 20, 15:35 UTCMay 20, 17:10 UTC1h 35m
2026-05-20 SAS2774 OPO → CPH May 20, 11:05 UTCMay 20, 14:00 UTC2h 55m
2026-05-20 SAS2773 CPH → OPO May 20, 06:50 UTCMay 20, 10:00 UTC3h 10m
2026-05-20 SAS73A OSL → CPH May 20, 04:05 UTCMay 20, 05:00 UTC56m
2026-05-19 SAS48C BGO → OSL May 19, 16:35 UTCMay 19, 17:15 UTC40m
2026-05-19 SAS277 OSL → BGO May 19, 15:10 UTCMay 19, 15:45 UTC35m
2026-05-19 SAS4788 KEF → OSL May 19, 11:25 UTCMay 19, 13:50 UTC2h 25m
2026-05-19 SAS4787 OSL → KEF May 19, 07:40 UTCMay 19, 10:05 UTC2h 25m
2026-05-19 SAS343 TRD → OSL May 19, 05:50 UTCMay 19, 06:30 UTC40m
2026-05-18 SAS382 OSL → TRD May 18, 19:55 UTCMay 18, 20:30 UTC35m
2026-05-18 SAS389 TRD → OSL May 18, 17:55 UTCMay 18, 18:30 UTC34m

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

Mode-S 4AC9E6 frequently asked

What is Mode-S code 4AC9E6?
4AC9E6 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROF.
Where is Mode-S 4AC9E6 registered?
Mode-S code 4AC9E6 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9E6 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9E6, octal 22544746, decimal 4,901,350.
What flights does 4AC9E6 operate?
Mode-S 4AC9E6 has broadcast 20 distinct callsigns, including SAS44D, SAS22H, SAS375, SAS89C, SAS77K.