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 SAS4773 · 37,025 ft
Flights observed
525
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 22:20 UTC

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

Callsign Airline Flights Last seen
SAS4680 - 8 2026-07-15
SAS4679 - 8 2026-07-15
SAS4774 Scandinavian Airlines System 7 2026-07-21
SAS4773 Scandinavian Airlines System 7 2026-07-21
SAS4098 - 7 2026-06-15
SAS69L - 6 2026-07-15
SAS4788 - 6 2026-07-15
SAS4787 - 6 2026-07-15
SAS93L - 5 2026-07-19
SAS839 Scandinavian Airlines System 5 2026-07-19
SAS46B Scandinavian Airlines System 5 2026-07-22
SAS4686 - 5 2026-07-03
SAS4685 - 5 2026-07-03
SAS4434 - 5 2026-07-08
SAS4079 - 5 2026-06-16
SAS32T - 5 2026-07-16
SAS95T Scandinavian Airlines System 4 2026-05-04
SAS83G - 4 2026-06-18
SAS60K Scandinavian Airlines System 4 2026-07-24
SAS50J - 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS85T ALC → SVG Jul 26, 19:20 UTCJul 26, 22:20 UTC3h 0m
2026-07-26 SAS4657 SVG → ALC Jul 26, 14:25 UTCJul 26, 17:25 UTC3h 0m
2026-07-26 SAS4027 OSL → SVG Jul 26, 12:50 UTCJul 26, 13:25 UTC35m
2026-07-26 SAS4706 NCE → OSL Jul 26, 09:15 UTCJul 26, 11:50 UTC2h 35m
2026-07-26 SAS4705 OSL → NCE Jul 26, 05:15 UTCJul 26, 07:45 UTC2h 31m
2026-07-25 SAS4097 EVE → OSL Jul 25, 19:10 UTCJul 25, 20:25 UTC1h 15m
2026-07-25 SAS7382 CHQ → EVE Jul 25, 12:55 UTCJul 25, 17:30 UTC4h 35m
2026-07-25 SAS7301 AES → CHQ Jul 25, 07:25 UTCJul 25, 11:05 UTC3h 40m
2026-07-24 SAS1334 OSL → AES Jul 24, 20:10 UTCJul 24, 20:40 UTC30m
2026-07-24 SAS30E DUB → OSL Jul 24, 16:05 UTCJul 24, 17:45 UTC1h 40m
2026-07-24 SAS60K OSL → DUB Jul 24, 13:10 UTCJul 24, 15:00 UTC1h 50m
2026-07-23 SAS4634 CHQ → OSL Jul 23, 16:15 UTCJul 23, 20:15 UTC4h 0m
2026-07-23 SAS4633 OSL → CHQ Jul 23, 11:35 UTCJul 23, 14:55 UTC3h 20m
2026-07-23 SAS4083 EVE → OSL Jul 23, 08:15 UTCJul 23, 09:30 UTC1h 15m
2026-07-23 SAS4082 OSL → EVE Jul 23, 05:50 UTCJul 23, 07:10 UTC1h 20m
2026-07-22 SAS4646 PMO → OSL Jul 22, 18:40 UTCJul 22, 21:55 UTC3h 15m
2026-07-22 SAS4645 OSL → PMO Jul 22, 14:20 UTCJul 22, 17:20 UTC3h 0m
2026-07-22 SAS46B AGP → OSL Jul 22, 04:20 UTCJul 22, 13:10 UTC8h 50m
2026-07-21 SAS4702 NCE → OSL Jul 21, 18:50 UTCJul 21, 21:35 UTC2h 45m
2026-07-21 SAS4701 OSL → NCE Jul 21, 15:05 UTCJul 21, 17:30 UTC2h 25m
2026-07-21 SAS4774 GZP → OSL Jul 21, 09:25 UTCJul 21, 13:25 UTC4h 0m
2026-07-21 SAS4773 OSL → GZP Jul 21, 04:25 UTCJul 21, 08:15 UTC3h 50m
2026-07-20 SAS4786 KEF → OSL Jul 20, 18:50 UTCJul 20, 21:00 UTC2h 10m
2026-07-20 SAS4785 OSL → KEF Jul 20, 15:15 UTCJul 20, 17:55 UTC2h 40m
2026-07-20 SAS4704 NCE → OSL Jul 20, 09:35 UTCJul 20, 12:05 UTC2h 30m
2026-07-20 SAS4703 OSL → NCE Jul 20, 05:45 UTCJul 20, 08:20 UTC2h 35m
2026-07-19 SAS93L - Jul 19, 18:55 UTCJul 19, 20:55 UTC2h 0m
2026-07-19 SAS839 OSL → CDG Jul 19, 15:40 UTCJul 19, 17:30 UTC1h 50m
2026-07-19 SAS4774 - Jul 19, 10:20 UTCJul 19, 14:15 UTC3h 55m
2026-07-19 SAS4773 OSL → GZP Jul 19, 05:15 UTCJul 19, 09:10 UTC3h 55m
2026-07-18 SAS43H - Jul 18, 18:20 UTCJul 18, 19:35 UTC1h 15m
2026-07-18 SAS7314 CHQ → BOO Jul 18, 12:35 UTCJul 18, 17:00 UTC4h 25m
2026-07-18 SAS7355 TOS → CHQ Jul 18, 06:15 UTCJul 18, 11:05 UTC4h 50m
2026-07-17 SAS4438 OSL → TOS Jul 17, 20:10 UTCJul 17, 21:25 UTC1h 15m
2026-07-17 SAS30E DUB → OSL Jul 17, 16:00 UTCJul 17, 17:50 UTC1h 50m
2026-07-17 SAS60K OSL → DUB Jul 17, 13:05 UTCJul 17, 14:50 UTC1h 45m
2026-07-16 SAS32T CPH → OSL Jul 16, 15:14 UTCJul 16, 16:05 UTC50m
2026-07-16 SAS87F OSL → CPH Jul 16, 11:50 UTCJul 16, 12:40 UTC50m
2026-07-16 SAS4824 - Jul 16, 08:20 UTCJul 16, 10:45 UTC2h 25m
2026-07-16 SAS4823 - Jul 16, 04:20 UTCJul 16, 06:45 UTC2h 25m
2026-07-15 SAS4680 - Jul 15, 19:55 UTCJul 15, 23:25 UTC3h 30m
2026-07-15 SAS4679 - Jul 15, 15:05 UTCJul 15, 18:45 UTC3h 40m
2026-07-15 SAS4788 KEF → OSL Jul 15, 11:45 UTCJul 15, 14:05 UTC2h 20m
2026-07-15 SAS4787 - Jul 15, 08:10 UTCJul 15, 10:35 UTC2h 25m
2026-07-15 SAS69L - Jul 15, 05:45 UTCJul 15, 07:10 UTC1h 25m
2026-07-14 SAS4438 - Jul 14, 20:15 UTCJul 14, 21:40 UTC1h 25m
2026-07-14 SAS4095 - Jul 14, 16:35 UTCJul 14, 17:50 UTC1h 15m
2026-07-14 SAS4094 - Jul 14, 14:10 UTCJul 14, 15:20 UTC1h 10m
2026-07-14 SAS4680 AGP → OSL Jul 14, 09:25 UTCJul 14, 13:05 UTC3h 40m
2026-07-14 SAS4679 - Jul 14, 04:15 UTCJul 14, 08:05 UTC3h 50m

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 SAS4680, SAS4679, SAS4774, SAS4773, SAS4098.