Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4ACA68

ICAO 24-bit transponder address · allocated to Sweden

Hex
4ACA68
Octal
22545150
Decimal
4,901,480
Country
SE
Broadcasting now · callsign SAS938 · 39,000 ft
Flights observed
113
Distinct callsigns
5
Country
SE
Last broadcast
19d ago

Current position

4ACA68 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACA68 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 5 distinct

Callsign Airline Flights Last seen
SAS987 Scandinavian Airlines System 45 2026-07-24
SAS988 Scandinavian Airlines System 27 2026-07-24
SAS984 Scandinavian Airlines System 20 2026-07-26
SAS983 Scandinavian Airlines System 20 2026-07-25
SAS9156 Scandinavian Airlines System 1 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAS984 HND → CPH Jul 26, 02:25 UTCJul 26, 15:10 UTC12h 46m
2026-07-25 SAS983 CPH → NRT Jul 25, 11:10 UTCJul 25, 23:35 UTC12h 25m
2026-07-24 SAS988 ICN → CPH Jul 24, 14:50 UTCJul 25, 03:25 UTC12h 35m
2026-07-24 SAS987 CPH → ICN Jul 24, 08:35 UTCJul 24, 09:00 UTC25m
2026-07-23 SAS987 CPH → ICN Jul 23, 22:10 UTCJul 24, 08:00 UTC9h 50m
2026-07-23 SAS984 HND → CPH Jul 23, 02:35 UTCJul 23, 15:05 UTC12h 30m
2026-07-22 SAS983 CPH → NRT Jul 22, 11:10 UTCJul 22, 23:25 UTC12h 15m
2026-07-21 SAS988 ICN → CPH Jul 21, 15:05 UTCJul 22, 04:00 UTC12h 55m
2026-07-21 SAS987 CPH → ICN Jul 21, 08:30 UTCJul 21, 09:00 UTC30m
2026-07-20 SAS987 CPH → ICN Jul 20, 22:05 UTCJul 21, 07:45 UTC9h 40m
2026-07-20 SAS984 HND → CPH Jul 20, 02:25 UTCJul 20, 15:15 UTC12h 50m
2026-07-19 SAS983 CPH → HND Jul 19, 11:05 UTCJul 19, 23:00 UTC11h 55m
2026-07-18 SAS988 ICN → CPH Jul 18, 15:55 UTCJul 19, 03:50 UTC11h 55m
2026-07-18 SAS988 ICN → CPH Jul 18, 14:40 UTCJul 18, 15:05 UTC25m
2026-07-17 SAS987 CPH → ICN Jul 17, 22:25 UTCJul 18, 09:00 UTC10h 36m
2026-07-17 SAS984 HND → CPH Jul 17, 02:20 UTCJul 17, 15:29 UTC13h 10m
2026-07-16 SAS983 - Jul 16, 11:10 UTCJul 16, 23:05 UTC11h 55m
2026-07-13 SAS988 ICN → CPH Jul 13, 15:00 UTCJul 14, 03:35 UTC12h 35m
2026-07-13 SAS987 - Jul 13, 08:45 UTCJul 13, 09:05 UTC20m
2026-07-12 SAS987 - Jul 12, 22:15 UTCJul 13, 07:55 UTC9h 40m
2026-07-12 SAS984 HND → CPH Jul 12, 02:25 UTCJul 12, 15:25 UTC13h 0m
2026-07-11 SAS983 CPH → HND Jul 11, 11:10 UTCJul 11, 23:25 UTC12h 15m
2026-07-09 SAS988 - Jul 9, 14:50 UTCJul 10, 03:35 UTC12h 45m
2026-07-09 SAS987 - Jul 9, 08:40 UTCJul 9, 09:00 UTC20m
2026-07-08 SAS987 - Jul 8, 22:15 UTCJul 9, 07:50 UTC9h 35m
2026-07-08 SAS984 HND → CPH Jul 8, 02:25 UTCJul 8, 15:15 UTC12h 50m
2026-07-07 SAS983 CPH → NRT Jul 7, 10:55 UTCJul 7, 22:55 UTC12h 0m
2026-07-06 SAS988 - Jul 6, 14:40 UTCJul 7, 03:40 UTC13h 0m
2026-07-06 SAS987 - Jul 6, 08:40 UTCJul 6, 09:15 UTC35m
2026-07-05 SAS987 - Jul 5, 22:15 UTCJul 6, 07:50 UTC9h 35m
2026-07-05 SAS984 HND → CPH Jul 5, 02:45 UTCJul 5, 15:50 UTC13h 5m
2026-07-04 SAS983 CPH → NRT Jul 4, 11:00 UTCJul 4, 23:15 UTC12h 15m
2026-07-03 SAS988 - Jul 3, 14:40 UTCJul 4, 03:10 UTC12h 30m
2026-07-03 SAS987 - Jul 3, 08:55 UTCJul 3, 09:20 UTC25m
2026-07-02 SAS987 - Jul 2, 22:10 UTCJul 3, 08:05 UTC9h 55m
2026-07-02 SAS984 HND → CPH Jul 2, 02:35 UTCJul 2, 15:35 UTC13h 0m
2026-07-01 SAS983 CPH → NRT Jul 1, 11:20 UTCJul 1, 23:45 UTC12h 25m
2026-06-30 SAS988 ICN → CPH Jun 30, 14:50 UTCJul 1, 03:30 UTC12h 40m
2026-06-30 SAS987 - Jun 30, 08:50 UTCJun 30, 09:15 UTC25m
2026-06-29 SAS987 - Jun 29, 22:10 UTCJun 30, 08:05 UTC9h 56m
2026-06-29 SAS984 HND → CPH Jun 29, 02:39 UTCJun 29, 15:34 UTC12h 55m
2026-06-28 SAS983 CPH → NRT Jun 28, 12:09 UTCJun 29, 00:20 UTC12h 10m
2026-06-27 SAS988 ICN → CPH Jun 27, 14:45 UTCJun 28, 03:35 UTC12h 50m
2026-06-27 SAS987 - Jun 27, 08:49 UTCJun 27, 09:09 UTC20m
2026-06-26 SAS987 - Jun 26, 22:19 UTCJun 27, 07:59 UTC9h 40m
2026-06-26 SAS984 HND → CPH Jun 26, 02:30 UTCJun 26, 15:29 UTC13h 0m
2026-06-25 SAS983 CPH → NRT Jun 25, 10:59 UTCJun 25, 22:54 UTC11h 55m
2026-06-23 SAS988 - Jun 23, 14:55 UTCJun 24, 03:50 UTC12h 55m
2026-06-23 SAS987 - Jun 23, 08:35 UTCJun 23, 08:59 UTC25m
2026-06-22 SAS987 - Jun 22, 22:15 UTCJun 23, 07:49 UTC9h 35m

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.

Mode-S 4ACA68 frequently asked

What is Mode-S code 4ACA68?
4ACA68 is an ICAO 24-bit transponder address. Allocated to Sweden.
Where is Mode-S 4ACA68 registered?
Mode-S code 4ACA68 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA68 broadcasting right now?
Yes. Mode-S 4ACA68 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA68, octal 22545150, decimal 4,901,480.
What flights does 4ACA68 operate?
Mode-S 4ACA68 has broadcast 5 distinct callsigns, including SAS987, SAS988, SAS984, SAS983, SAS9156.