sensors Mode-S transponder

4ACB5A

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACB5A
Octal
22545532
Decimal
4,901,722
Country
SE
Tail
SE-RZZ
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
454
Distinct callsigns
20
Country
SE
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4ACB5A.

Country allocation

The ICAO 24-bit address 4ACB5A 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
SAS69L - 9 2026-07-06
SAS816 Scandinavian Airlines System 7 2026-06-11
SAS78K Scandinavian Airlines System 7 2026-06-11
SAS44Z Scandinavian Airlines System 6 2026-04-23
SAS4438 - 6 2026-07-05
SAS93L - 5 2026-07-12
SAS839 - 5 2026-07-12
SAS32T Scandinavian Airlines System 5 2026-07-07
SAS242F - 5 2026-07-07
SAS842 - 4 2026-06-18
SAS841 - 4 2026-06-18
SAS4697 - 4 2026-07-06
SAS4546 Scandinavian Airlines System 4 2026-06-20
SAS4545 - 4 2026-06-20
SAS4434 Scandinavian Airlines System 4 2026-04-22
SAS4124 Scandinavian Airlines System 4 2026-05-21
SAS4105 Scandinavian Airlines System 4 2026-05-22
SAS88E - 3 2026-06-22
SAS885 Scandinavian Airlines System 3 2026-04-27
SAS73A - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SAS30T - Jul 13, 18:20 UTCJul 13, 20:55 UTC2h 35m
2026-07-13 SAS96C - Jul 13, 14:30 UTCJul 13, 17:10 UTC2h 40m
2026-07-13 SAS23A MXP → CPH Jul 13, 09:55 UTCJul 13, 11:40 UTC1h 45m
2026-07-13 SAS71K CPH → MXP Jul 13, 06:35 UTCJul 13, 08:25 UTC1h 50m
2026-07-13 SAS73A - Jul 13, 04:05 UTCJul 13, 04:55 UTC50m
2026-07-12 SAS93L - Jul 12, 19:05 UTCJul 12, 20:55 UTC1h 50m
2026-07-12 SAS839 - Jul 12, 15:45 UTCJul 12, 17:45 UTC2h 0m
2026-07-12 SAS4492 OSL → OSL Jul 12, 08:05 UTCJul 12, 14:40 UTC6h 35m
2026-07-12 SAS4012 - Jul 12, 06:05 UTCJul 12, 06:45 UTC40m
2026-07-11 SAS85T - Jul 11, 18:55 UTCJul 11, 21:55 UTC3h 0m
2026-07-11 SAS4657 - Jul 11, 14:35 UTCJul 11, 17:50 UTC3h 15m
2026-07-11 SAS4762 - Jul 11, 10:10 UTCJul 11, 12:40 UTC2h 30m
2026-07-11 SAS4763 - Jul 11, 06:20 UTCJul 11, 08:30 UTC2h 10m
2026-07-10 SAS4051 OSL → SVG Jul 10, 21:05 UTCJul 10, 21:45 UTC40m
2026-07-10 SAS11M - Jul 10, 08:55 UTCJul 10, 12:30 UTC3h 35m
2026-07-10 SAS22E - Jul 10, 04:10 UTCJul 10, 07:40 UTC3h 30m
2026-07-09 SAS4734 - Jul 9, 17:50 UTCJul 9, 20:20 UTC2h 30m
2026-07-09 SAS4733 - Jul 9, 14:05 UTCJul 9, 16:10 UTC2h 5m
2026-07-09 SAS4686 BCN → OSL Jul 9, 09:55 UTCJul 9, 12:50 UTC2h 55m
2026-07-09 SAS4685 - Jul 9, 05:50 UTCJul 9, 08:45 UTC2h 55m
2026-07-08 SAS20W MXP → OSL Jul 8, 18:55 UTCJul 8, 21:25 UTC2h 30m
2026-07-08 SAS4717 OSL → MXP Jul 8, 15:35 UTCJul 8, 17:35 UTC2h 0m
2026-07-08 SAS4780 - Jul 8, 09:45 UTCJul 8, 14:25 UTC4h 40m
2026-07-08 SAS4779 - Jul 8, 04:25 UTCJul 8, 08:25 UTC4h 0m
2026-07-07 SAS1472 - Jul 7, 19:30 UTCJul 7, 20:25 UTC55m
2026-07-07 SAS77K OSL → CPH Jul 7, 17:30 UTCJul 7, 18:20 UTC50m
2026-07-07 SAS32T CPH → OSL Jul 7, 15:25 UTCJul 7, 16:15 UTC50m
2026-07-07 SAS242F OSL → CPH Jul 7, 13:20 UTCJul 7, 14:20 UTC1h 0m
2026-07-07 SAS6301 EVE → OSL Jul 7, 07:40 UTCJul 7, 12:00 UTC4h 20m
2026-07-07 SAS4079 - Jul 7, 04:25 UTCJul 7, 05:45 UTC1h 20m
2026-07-06 SAS4098 - Jul 6, 21:45 UTCJul 6, 22:50 UTC1h 5m
2026-07-06 SAS4698 - Jul 6, 13:30 UTCJul 6, 18:35 UTC5h 5m
2026-07-06 SAS4697 OSL → LPA Jul 6, 06:50 UTCJul 6, 12:10 UTC5h 20m
2026-07-06 SAS69L - Jul 6, 04:05 UTCJul 6, 05:35 UTC1h 30m
2026-07-05 SAS4438 - Jul 5, 20:05 UTCJul 5, 21:20 UTC1h 15m
2026-07-05 SAS810 - Jul 5, 16:45 UTCJul 5, 18:30 UTC1h 45m
2026-07-05 SAS809 OSL → LHR Jul 5, 13:30 UTCJul 5, 15:20 UTC1h 50m
2026-07-05 SAS4646 - Jul 5, 09:05 UTCJul 5, 12:25 UTC3h 20m
2026-07-05 SAS4645 - Jul 5, 04:10 UTCJul 5, 07:00 UTC2h 50m
2026-07-04 SAS56G - Jul 4, 20:10 UTCJul 4, 23:25 UTC3h 15m
2026-07-04 SAS51C - Jul 4, 15:35 UTCJul 4, 18:15 UTC2h 40m
2026-07-04 SAS7354 - Jul 4, 10:05 UTCJul 4, 14:00 UTC3h 55m
2026-07-04 SAS7353 - Jul 4, 04:25 UTCJul 4, 08:00 UTC3h 35m
2026-07-03 SAS4492 OSL → OSL Jul 3, 14:15 UTCJul 3, 20:20 UTC6h 5m
2026-07-03 SAS4840 - Jul 3, 09:55 UTCJul 3, 12:25 UTC2h 30m
2026-07-03 SAS4839 - Jul 3, 06:10 UTCJul 3, 08:25 UTC2h 15m
2026-07-03 SAS339 TRD → OSL Jul 3, 04:05 UTCJul 3, 04:45 UTC40m
2026-07-02 SAS382 - Jul 2, 20:35 UTCJul 2, 21:15 UTC40m
2026-07-02 SAS4698 - Jul 2, 14:00 UTCJul 2, 19:10 UTC5h 10m
2026-07-02 SAS4697 - Jul 2, 07:20 UTCJul 2, 12:45 UTC5h 25m

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

Mode-S 4ACB5A frequently asked

What is Mode-S code 4ACB5A?
4ACB5A is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RZZ.
Where is Mode-S 4ACB5A registered?
Mode-S code 4ACB5A is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACB5A broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACB5A, octal 22545532, decimal 4,901,722.
What flights does 4ACB5A operate?
Mode-S 4ACB5A has broadcast 20 distinct callsigns, including SAS69L, SAS816, SAS78K, SAS44Z, SAS4438.