sensors Mode-S transponder

4AC9FA

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9FA
Octal
22544772
Decimal
4,901,370
Country
SE
Tail
SE-ROZ
Type
A20N
Broadcasting now · callsign SAS4497 · 15,900 ft
Flights observed
275
Distinct callsigns
20
Country
SE
Last broadcast
4h ago

Current position

4AC9FA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4AC9FA 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 SK4496 OSL → LYR May 30, 14:25 UTCMay 30, 15:55 UTC1h 30m
2026-05-29 SAS1472 CPH → OSL May 29, 19:45 UTCMay 29, 20:35 UTC50m
2026-05-29 SAS77K OSL → CPH May 29, 18:00 UTCMay 29, 18:50 UTC50m
2026-05-29 SAS4117 BOO → OSL May 29, 15:55 UTCMay 29, 17:15 UTC1h 20m
2026-05-29 SAS96D OSL → BOO May 29, 14:00 UTCMay 29, 15:05 UTC1h 5m
2026-05-29 SAS4492 OSL → LYR May 29, 05:45 UTCMay 29, 12:00 UTC6h 15m
2026-05-28 SAS4610 MAN → OSL May 28, 20:25 UTCMay 28, 21:55 UTC1h 30m
2026-05-28 SAS4607 OSL → MAN May 28, 17:55 UTCMay 28, 19:35 UTC1h 40m
2026-05-28 SAS45E BGO → OSL May 28, 16:25 UTCMay 28, 17:00 UTC35m
2026-05-28 SAS79P OSL → BGO May 28, 15:00 UTCMay 28, 15:40 UTC40m
2026-05-28 SAS60A BGO → OSL May 28, 13:35 UTCMay 28, 14:10 UTC35m
2026-05-28 SAS34A OSL → BGO May 28, 12:10 UTCMay 28, 12:50 UTC40m
2026-05-28 SAS4083 EVE → OSL May 28, 09:05 UTCMay 28, 10:20 UTC1h 15m
2026-05-28 SAS4082 OSL → EVE May 28, 06:45 UTCMay 28, 07:55 UTC1h 10m
2026-05-28 SAS69L TOS → OSL May 28, 04:10 UTCMay 28, 05:40 UTC1h 30m
2026-05-27 SAS27E OSL → TOS May 27, 19:00 UTCMay 27, 20:20 UTC1h 20m
2026-05-27 SAS73B TRD → OSL May 27, 16:40 UTCMay 27, 17:20 UTC40m
2026-05-27 SAS364 OSL → TRD May 27, 15:15 UTCMay 27, 16:00 UTC45m
2026-05-27 SAS4788 KEF → OSL May 27, 11:20 UTCMay 27, 13:30 UTC2h 10m
2026-05-27 SAS4787 OSL → KEF May 27, 07:40 UTCMay 27, 10:20 UTC2h 40m
2026-05-27 SAS343 TRD → OSL May 27, 05:49 UTCMay 27, 06:34 UTC45m
2026-05-26 SAS54B OSL → TRD May 26, 17:50 UTCMay 26, 18:30 UTC40m
2026-05-26 SAS373 TRD → OSL May 26, 15:05 UTCMay 26, 15:45 UTC40m
2026-05-26 SAS358 OSL → TRD May 26, 13:29 UTCMay 26, 14:09 UTC40m
2026-05-26 SAS804 LHR → OSL May 26, 10:10 UTCMay 26, 11:50 UTC1h 40m
2026-05-26 SAS53D OSL → LHR May 26, 06:04 UTCMay 26, 08:10 UTC2h 5m
2026-05-25 SAS4610 MAN → OSL May 25, 19:40 UTCMay 25, 21:04 UTC1h 25m
2026-05-25 SAS4607 OSL → MAN May 25, 16:50 UTCMay 25, 18:30 UTC1h 40m
2026-05-25 SAS4491 LYR → OSL May 25, 10:50 UTCMay 25, 15:25 UTC4h 35m
2026-05-25 SAS4414 TOS → LYR May 25, 08:20 UTCMay 25, 09:45 UTC1h 25m
2026-05-25 SAS4079 EVE → OSL May 25, 04:20 UTCMay 25, 05:35 UTC1h 15m
2026-05-24 SAS4098 OSL → EVE May 24, 19:55 UTCMay 24, 21:05 UTC1h 10m
2026-05-24 SAS83G TOS → OSL May 24, 17:10 UTCMay 24, 18:45 UTC1h 35m
2026-05-24 SAS50J OSL → TOS May 24, 14:55 UTCMay 24, 16:15 UTC1h 20m
2026-05-24 SAS4680 AGP → OSL May 24, 10:25 UTCMay 24, 14:05 UTC3h 40m
2026-05-24 SAS4679 OSL → AGP May 24, 05:10 UTCMay 24, 08:55 UTC3h 45m
2026-05-23 SAS46B AGP → OSL May 23, 18:45 UTCMay 23, 22:30 UTC3h 45m
2026-05-23 SAS38R OSL → AGP May 23, 13:35 UTCMay 23, 17:20 UTC3h 45m
2026-05-23 SAS4788 KEF → OSL May 23, 09:50 UTCMay 23, 12:10 UTC2h 20m
2026-05-23 SAS4787 OSL → KEF May 23, 06:00 UTCMay 23, 08:30 UTC2h 30m
2026-05-22 SAS4478 OSL → KKN May 22, 16:35 UTCMay 22, 21:00 UTC4h 25m
2026-05-22 SAS373 TRD → OSL May 22, 14:55 UTCMay 22, 15:35 UTC40m
2026-05-22 SAS358 OSL → TRD May 22, 13:30 UTCMay 22, 14:15 UTC45m
2026-05-22 SAS11M ALC → OSL May 22, 08:55 UTCMay 22, 12:20 UTC3h 25m
2026-05-22 SAS22E FCO → CPH May 22, 04:05 UTCMay 22, 07:30 UTC3h 25m
2026-05-21 SAS4610 MAN → OSL May 21, 20:40 UTCMay 21, 22:15 UTC1h 35m
2026-05-21 SAS4607 OSL → MAN May 21, 17:55 UTCMay 21, 19:40 UTC1h 45m
2026-05-21 SAS497 OSL → ARN May 21, 15:20 UTCMay 21, 16:10 UTC50m
2026-05-21 SAS486 OSL → ARN May 21, 13:30 UTCMay 21, 14:10 UTC40m
2026-05-21 SAS30E DUB → OSL May 21, 10:15 UTCMay 21, 12:00 UTC1h 45m

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

Mode-S 4AC9FA frequently asked

What is Mode-S code 4AC9FA?
4AC9FA is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROZ.
Where is Mode-S 4AC9FA registered?
Mode-S code 4AC9FA is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9FA broadcasting right now?
Yes. Mode-S 4AC9FA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9FA, octal 22544772, decimal 4,901,370.
What flights does 4AC9FA operate?
Mode-S 4AC9FA has broadcast 20 distinct callsigns, including SAS95T, SAS4680, SAS4679, SAS4610, SAS4607.