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sensors Mode-S transponder

4AC9F0

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9F0
Octal
22544760
Decimal
4,901,360
Country
SE
Tail
SE-ROP
Type
A20N
Broadcasting now · callsign SAS39M · 12,275 ft
Flights observed
569
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 22:00 UTC

Current position

4AC9F0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4AC9F0 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
SAS41K - 7 2026-07-04
SAS82K Scandinavian Airlines System 6 2026-07-19
SAS554 - 6 2026-06-18
SAS44G - 6 2026-06-18
SAS34L - 6 2026-06-18
SAS1879 Scandinavian Airlines System 6 2026-06-04
SAS1874 Scandinavian Airlines System 6 2026-06-04
SAS1202 Scandinavian Airlines System 6 2026-06-05
SAS85J Scandinavian Airlines System 5 2026-05-07
SAS767 Scandinavian Airlines System 5 2026-05-07
SAS63Z Scandinavian Airlines System 5 2026-07-20
SAS49M - 5 2026-06-18
SAS48P Scandinavian Airlines System 5 2026-06-04
SAS46M - 5 2026-07-04
SAS434 Scandinavian Airlines System 5 2026-06-04
SAS42E - 5 2026-07-04
SAS1407 Scandinavian Airlines System 5 2026-07-22
SAS1225 - 5 2026-06-14
SAS1221 Scandinavian Airlines System 5 2026-06-04
SAS97T Scandinavian Airlines System 4 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS1428 CPH → ARN Jul 26, 21:25 UTCJul 26, 22:00 UTC35m
2026-07-26 SAS67L BGO → CPH Jul 26, 17:35 UTCJul 26, 18:35 UTC1h 0m
2026-07-26 SAS2872 CPH → BGO Jul 26, 15:45 UTCJul 26, 16:45 UTC1h 0m
2026-07-26 SAS461 OSL → CPH Jul 26, 13:50 UTCJul 26, 14:40 UTC50m
2026-07-26 SAS464 OSL → CPH Jul 26, 12:00 UTCJul 26, 12:55 UTC55m
2026-07-25 SAS1778 FAE → CPH Jul 25, 16:00 UTCJul 25, 20:40 UTC4h 40m
2026-07-25 SAS1698 CTA → CPH Jul 25, 10:35 UTCJul 25, 13:20 UTC2h 45m
2026-07-25 SAS1697 CPH → CTA Jul 25, 06:30 UTCJul 25, 09:05 UTC2h 35m
2026-07-24 SAS34Y TOS → CPH Jul 24, 17:30 UTCJul 24, 19:30 UTC2h 0m
2026-07-24 SAS182Y CPH → TOS Jul 24, 14:15 UTCJul 24, 16:15 UTC2h 0m
2026-07-24 SAS42K FCO → CPH Jul 24, 09:50 UTCJul 24, 12:10 UTC2h 20m
2026-07-24 SAS49L CPH → FCO Jul 24, 06:00 UTCJul 24, 07:50 UTC1h 50m
2026-07-23 SAS2518 BRI → CPH Jul 23, 17:05 UTCJul 23, 19:20 UTC2h 15m
2026-07-23 SAS2517 CPH → BRI Jul 23, 13:55 UTCJul 23, 15:55 UTC2h 0m
2026-07-23 SAS65K PMO → CPH Jul 23, 09:35 UTCJul 23, 12:10 UTC2h 35m
2026-07-23 SAS2695 CPH → PMO Jul 23, 05:50 UTCJul 23, 08:10 UTC2h 20m
2026-07-22 SAS2832 - Jul 22, 20:35 UTCJul 22, 22:25 UTC1h 50m
2026-07-22 SAS2831 - Jul 22, 17:30 UTCJul 22, 19:05 UTC1h 35m
2026-07-22 SAS1407 ARN → CPH Jul 22, 13:40 UTCJul 22, 14:35 UTC55m
2026-07-22 SAS61A CPH → ARN Jul 22, 11:25 UTCJul 22, 12:35 UTC1h 10m
2026-07-21 SAS41W PMI → ARN Jul 21, 17:40 UTCJul 21, 21:35 UTC3h 55m
2026-07-21 SAS72U - Jul 21, 13:00 UTCJul 21, 16:00 UTC3h 0m
2026-07-21 SAS868 OSL → ARN Jul 21, 10:25 UTCJul 21, 11:10 UTC45m
2026-07-21 SAS849 ARN → OSL Jul 21, 08:45 UTCJul 21, 09:25 UTC40m
2026-07-21 SAS864 OSL → ARN Jul 21, 06:55 UTCJul 21, 07:40 UTC45m
2026-07-21 SAS55P ARN → OSL Jul 21, 05:20 UTCJul 21, 06:00 UTC40m
2026-07-20 SAS58M LIN → ARN Jul 20, 11:20 UTCJul 20, 13:40 UTC2h 20m
2026-07-20 SAS63Z ARN → LIN Jul 20, 09:25 UTCJul 20, 09:55 UTC30m
2026-07-20 SAS63Z ARN → LIN Jul 20, 07:35 UTCJul 20, 09:20 UTC1h 45m
2026-07-19 SAS2904 LIS → ARN Jul 19, 17:40 UTCJul 19, 21:25 UTC3h 45m
2026-07-19 SAS2903 ARN → LIS Jul 19, 11:50 UTCJul 19, 15:55 UTC4h 5m
2026-07-19 SAS82K LLA → ARN Jul 19, 06:05 UTCJul 19, 07:10 UTC1h 5m
2026-07-18 SAS2002 - Jul 18, 16:45 UTCJul 18, 17:35 UTC50m
2026-07-18 SAS80D NCE → ARN Jul 18, 11:40 UTCJul 18, 14:00 UTC2h 20m
2026-07-18 SAS67W ARN → NCE Jul 18, 07:25 UTCJul 18, 10:15 UTC2h 50m
2026-07-18 SAS82K - Jul 18, 05:05 UTCJul 18, 06:10 UTC1h 5m
2026-07-17 SAS22Y - Jul 17, 20:20 UTCJul 17, 21:15 UTC55m
2026-07-17 SAS1556 - Jul 17, 17:35 UTCJul 17, 19:05 UTC1h 30m
2026-07-17 SAS1555 ARN → AMS Jul 17, 14:24 UTCJul 17, 16:10 UTC1h 45m
2026-07-17 SAS1830 - Jul 17, 08:20 UTCJul 17, 10:50 UTC2h 30m
2026-07-17 SAS1829 ARN → NCE Jul 17, 04:14 UTCJul 17, 07:14 UTC3h 0m
2026-07-16 SAS64R - Jul 16, 17:45 UTCJul 16, 20:05 UTC2h 20m
2026-07-16 SAS61P - Jul 16, 14:10 UTCJul 16, 16:19 UTC2h 10m
2026-07-15 SAS79E - Jul 15, 19:50 UTCJul 15, 21:10 UTC1h 20m
2026-07-15 SAS95W ARN → BER Jul 15, 17:25 UTCJul 15, 18:45 UTC1h 20m
2026-07-15 SAS1491 - Jul 15, 14:50 UTCJul 15, 16:20 UTC1h 30m
2026-07-15 SAS1492 - Jul 15, 12:15 UTCJul 15, 13:45 UTC1h 30m
2026-07-15 SAS868 - Jul 15, 10:30 UTCJul 15, 11:10 UTC40m
2026-07-15 SAS849 ARN → OSL Jul 15, 08:55 UTCJul 15, 09:35 UTC40m
2026-07-15 SAS864 OSL → ARN Jul 15, 07:00 UTCJul 15, 07:45 UTC45m

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

Mode-S 4AC9F0 frequently asked

What is Mode-S code 4AC9F0?
4AC9F0 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROP.
Where is Mode-S 4AC9F0 registered?
Mode-S code 4AC9F0 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9F0 broadcasting right now?
Yes. Mode-S 4AC9F0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9F0, octal 22544760, decimal 4,901,360.
What flights does 4AC9F0 operate?
Mode-S 4AC9F0 has broadcast 20 distinct callsigns, including SAS41K, SAS82K, SAS554, SAS44G, SAS34L.