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sensors Mode-S transponder

4AC8A8

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-REH · AIRBUS A-330-300

Hex
4AC8A8
Octal
22544250
Decimal
4,901,032
Country
SE
Tail
SE-REH
Type
A333
Broadcasting now · callsign SAS943 · 32,000 ft
Flights observed
187
Distinct callsigns
16
Country
SE
Last broadcast
Jul 26, 20:35 UTC

Current position

4AC8A8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4AC8A8 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 16 distinct

Callsign Airline Flights Last seen
SAS931 - 29 2026-07-19
SAS932 - 26 2026-07-20
SAS916 Scandinavian Airlines System 25 2026-07-24
SAS915 Scandinavian Airlines System 25 2026-07-23
SAS943 Scandinavian Airlines System 16 2026-07-26
SAS928 Scandinavian Airlines System 15 2026-07-21
SAS927 - 15 2026-07-21
SAS944 - 13 2026-07-19
SAS930 Scandinavian Airlines System 4 2026-05-22
SAS910 Scandinavian Airlines System 4 2026-07-24
SAS909 Scandinavian Airlines System 4 2026-07-24
SAS929 Scandinavian Airlines System 3 2026-05-22
SAS926 - 3 2026-07-04
SAS925 Scandinavian Airlines System 3 2026-07-03
SAS904 - 1 2026-06-29
SAS903 - 1 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS943 CPH → ORD Jul 26, 12:05 UTCJul 26, 20:35 UTC8h 30m
2026-07-24 SAS910 EWR → CPH Jul 24, 21:35 UTCJul 25, 04:15 UTC6h 40m
2026-07-24 SAS909 CPH → EWR Jul 24, 10:40 UTCJul 24, 19:00 UTC8h 20m
2026-07-24 SAS916 JFK → CPH Jul 24, 00:25 UTCJul 24, 06:50 UTC6h 25m
2026-07-23 SAS915 CPH → JFK Jul 23, 12:35 UTCJul 23, 20:35 UTC8h 0m
2026-07-21 SAS928 BOS → CPH Jul 21, 22:00 UTCJul 22, 04:40 UTC6h 40m
2026-07-21 SAS927 - Jul 21, 11:50 UTCJul 21, 19:25 UTC7h 35m
2026-07-20 SAS932 LAX → CPH Jul 20, 02:15 UTCJul 20, 12:35 UTC10h 20m
2026-07-19 SAS931 - Jul 19, 12:30 UTCJul 19, 23:45 UTC11h 15m
2026-07-19 SAS944 - Jul 19, 00:50 UTCJul 19, 08:35 UTC7h 45m
2026-07-18 SAS943 CPH → ORD Jul 18, 12:10 UTCJul 18, 20:55 UTC8h 45m
2026-07-17 SAS916 JFK → CPH Jul 17, 23:39 UTCJul 18, 06:40 UTC7h 1m
2026-07-17 SAS915 CPH → JFK Jul 17, 12:45 UTCJul 17, 20:50 UTC8h 5m
2026-07-17 SAS944 ORD → CPH Jul 17, 00:45 UTCJul 17, 08:35 UTC7h 50m
2026-07-16 SAS943 CPH → ORD Jul 16, 12:00 UTCJul 16, 20:29 UTC8h 30m
2026-07-15 SAS916 JFK → CPH Jul 15, 23:50 UTCJul 16, 07:05 UTC7h 15m
2026-07-15 SAS915 - Jul 15, 20:20 UTCJul 15, 20:55 UTC35m
2026-07-15 SAS915 - Jul 15, 12:45 UTCJul 15, 20:15 UTC7h 30m
2026-07-14 SAS932 - Jul 14, 02:30 UTCJul 14, 12:35 UTC10h 5m
2026-07-13 SAS931 - Jul 13, 12:20 UTCJul 13, 23:45 UTC11h 25m
2026-07-13 SAS916 JFK → CPH Jul 13, 00:25 UTCJul 13, 07:40 UTC7h 15m
2026-07-12 SAS915 CPH → JFK Jul 12, 12:50 UTCJul 12, 20:40 UTC7h 50m
2026-07-12 SAS916 JFK → CPH Jul 12, 00:30 UTCJul 12, 07:25 UTC6h 55m
2026-07-11 SAS915 CPH → JFK Jul 11, 12:40 UTCJul 11, 20:40 UTC8h 0m
2026-07-11 SAS928 - Jul 11, 01:55 UTCJul 11, 04:45 UTC2h 50m
2026-07-10 SAS928 - Jul 10, 22:10 UTCJul 10, 23:15 UTC1h 5m
2026-07-10 SAS927 CPH → BOS Jul 10, 11:35 UTCJul 10, 19:10 UTC7h 35m
2026-07-09 SAS916 JFK → CPH Jul 9, 23:25 UTCJul 10, 06:20 UTC6h 55m
2026-07-09 SAS915 CPH → JFK Jul 9, 12:35 UTCJul 9, 20:40 UTC8h 5m
2026-07-08 SAS916 - Jul 8, 23:35 UTCJul 9, 06:40 UTC7h 5m
2026-07-08 SAS915 CPH → JFK Jul 8, 12:30 UTCJul 8, 20:25 UTC7h 55m
2026-07-07 SAS910 EWR → CPH Jul 7, 21:35 UTCJul 8, 04:35 UTC7h 0m
2026-07-07 SAS909 CPH → EWR Jul 7, 10:50 UTCJul 7, 18:45 UTC7h 55m
2026-07-06 SAS932 LAX → CPH Jul 6, 02:25 UTCJul 6, 12:45 UTC10h 20m
2026-07-05 SAS931 CPH → LAX Jul 5, 12:25 UTCJul 5, 23:35 UTC11h 10m
2026-07-04 SAS916 JFK → CPH Jul 4, 23:20 UTCJul 5, 06:10 UTC6h 50m
2026-07-04 SAS915 CPH → JFK Jul 4, 12:35 UTCJul 4, 20:45 UTC8h 10m
2026-07-04 SAS926 IAD → CPH Jul 4, 01:05 UTCJul 4, 08:20 UTC7h 15m
2026-07-03 SAS925 CPH → IAD Jul 3, 12:40 UTCJul 3, 21:10 UTC8h 30m
2026-07-03 SAS944 ORD → CPH Jul 3, 01:30 UTCJul 3, 09:10 UTC7h 40m
2026-07-02 SAS943 RKE → ORD Jul 2, 12:35 UTCJul 2, 21:10 UTC8h 35m
2026-07-01 SAS910 - Jul 1, 21:30 UTCJul 2, 04:20 UTC6h 50m
2026-07-01 SAS903 ARN → EWR Jul 1, 09:00 UTCJul 1, 16:55 UTC7h 55m
2026-06-29 SAS904 EWR → ARN Jun 29, 21:30 UTCJun 30, 04:40 UTC7h 11m
2026-06-29 SAS909 - Jun 29, 10:50 UTCJun 29, 18:30 UTC7h 40m
2026-06-28 SAS932 LAX → CPH Jun 28, 02:25 UTCJun 28, 13:00 UTC10h 35m
2026-06-27 SAS931 CPH → LAX Jun 27, 12:25 UTCJun 27, 23:29 UTC11h 5m
2026-06-26 SAS916 JFK → CPH Jun 26, 23:25 UTCJun 27, 06:25 UTC7h 0m
2026-06-26 SAS915 CPH → JFK Jun 26, 12:29 UTCJun 26, 20:34 UTC8h 5m
2026-06-26 SAS944 ORD → CPH Jun 26, 00:59 UTCJun 26, 08:45 UTC7h 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-REH page for operator, model, and routing details .

Mode-S 4AC8A8 frequently asked

What is Mode-S code 4AC8A8?
4AC8A8 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-REH.
Where is Mode-S 4AC8A8 registered?
Mode-S code 4AC8A8 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC8A8 broadcasting right now?
Yes. Mode-S 4AC8A8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC8A8, octal 22544250, decimal 4,901,032.
What flights does 4AC8A8 operate?
Mode-S 4AC8A8 has broadcast 16 distinct callsigns, including SAS931, SAS932, SAS916, SAS915, SAS943.