sensors Mode-S transponder

4A91FA

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4A91FA
Octal
22510772
Decimal
4,887,034
Country
SE
Tail
SE-DOZ
Type
A20N
No current signal · last broadcast 4h ago
Flights observed
444
Distinct callsigns
20
Country
SE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4A91FA.

Country allocation

The ICAO 24-bit address 4A91FA 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
SAS82K - 8 2026-06-29
SAS35K - 8 2026-07-02
SAS55A - 7 2026-07-02
SAS46C - 7 2026-06-28
SAS010 - 7 2026-06-28
SAS97T Scandinavian Airlines System 5 2026-06-03
SAS53C - 5 2026-06-17
SAS22Y - 5 2026-06-28
SAS1553 Scandinavian Airlines System 5 2026-06-11
SAS126 Scandinavian Airlines System 5 2026-06-11
SAS121 Scandinavian Airlines System 5 2026-06-11
SAS884 Scandinavian Airlines System 4 2026-05-26
SAS883 Scandinavian Airlines System 4 2026-05-26
SAS72C Scandinavian Airlines System 4 2026-06-11
SAS69H - 4 2026-06-25
SAS61A Scandinavian Airlines System 4 2026-06-06
SAS485 Scandinavian Airlines System 4 2026-05-26
SAS41K - 4 2026-07-01
SAS30P - 4 2026-06-25
SAS2677 Scandinavian Airlines System 4 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SAS4638 ATH → OSL Jul 13, 19:40 UTCJul 13, 23:15 UTC3h 35m
2026-07-13 SAS4637 - Jul 13, 15:15 UTCJul 13, 18:40 UTC3h 25m
2026-07-13 SAS4490 OSL → OSL Jul 13, 06:50 UTCJul 13, 13:15 UTC6h 25m
2026-07-12 SAS4734 - Jul 12, 17:50 UTCJul 12, 20:10 UTC2h 20m
2026-07-12 SAS4733 - Jul 12, 14:10 UTCJul 12, 16:25 UTC2h 15m
2026-07-12 SAS4692 PMI → OSL Jul 12, 10:01 UTCJul 12, 13:10 UTC3h 10m
2026-07-12 SAS98W - Jul 12, 05:30 UTCJul 12, 08:40 UTC3h 10m
2026-07-11 SAS4433 - Jul 11, 18:50 UTCJul 11, 20:25 UTC1h 35m
2026-07-11 SAS7356 - Jul 11, 12:05 UTCJul 11, 16:35 UTC4h 30m
2026-07-11 SAS7313 - Jul 11, 06:15 UTCJul 11, 10:45 UTC4h 30m
2026-07-10 SAS4128 OSL → BOO Jul 10, 20:15 UTCJul 10, 21:25 UTC1h 10m
2026-07-10 SAS810 LHR → OSL Jul 10, 16:55 UTCJul 10, 18:35 UTC1h 40m
2026-07-10 SAS809 OSL → LHR Jul 10, 13:25 UTCJul 10, 15:10 UTC1h 45m
2026-07-10 SAS7392 - Jul 10, 08:50 UTCJul 10, 12:15 UTC3h 25m
2026-07-10 SAS7391 - Jul 10, 04:15 UTCJul 10, 07:00 UTC2h 45m
2026-07-09 SAS4490 OSL → OSL Jul 9, 05:25 UTCJul 9, 11:40 UTC6h 15m
2026-07-08 SAS4698 - Jul 8, 16:15 UTCJul 8, 21:05 UTC4h 50m
2026-07-08 SAS4697 - Jul 8, 09:25 UTCJul 8, 14:25 UTC5h 0m
2026-07-04 SAS1327 - Jul 4, 19:15 UTCJul 4, 19:45 UTC30m
2026-07-04 SAS7302 - Jul 4, 13:40 UTCJul 4, 17:50 UTC4h 10m
2026-07-04 SAS7381 - Jul 4, 07:30 UTCJul 4, 11:55 UTC4h 25m
2026-07-03 SAS4098 - Jul 3, 20:05 UTCJul 3, 21:15 UTC1h 10m
2026-07-03 SAS2308 - Jul 3, 17:30 UTCJul 3, 18:10 UTC40m
2026-07-03 SAS7406 - Jul 3, 12:00 UTCJul 3, 15:55 UTC3h 55m
2026-07-03 SAS7405 - Jul 3, 06:10 UTCJul 3, 10:05 UTC3h 55m
2026-07-02 SAS2309 - Jul 2, 20:20 UTCJul 2, 20:50 UTC30m
2026-07-02 SAS885 ARN → OSL Jul 2, 16:05 UTCJul 2, 16:45 UTC40m
2026-07-02 SAS55A - Jul 2, 11:05 UTCJul 2, 14:35 UTC3h 30m
2026-07-02 SAS35K - Jul 2, 05:30 UTCJul 2, 09:00 UTC3h 30m
2026-07-01 SAS1428 CPH → ARN Jul 1, 21:40 UTCJul 1, 22:30 UTC50m
2026-07-01 SAS41K ARN → CPH Jul 1, 08:10 UTCJul 1, 09:15 UTC1h 5m
2026-06-30 SAS64R SPU → ARN Jun 30, 20:10 UTCJun 30, 22:35 UTC2h 25m
2026-06-30 SAS61P ARN → SPU Jun 30, 15:50 UTCJun 30, 18:20 UTC2h 30m
2026-06-30 SAS58E CPH → ARN Jun 30, 07:15 UTCJun 30, 08:05 UTC50m
2026-06-30 SAS54C ARN → CPH Jun 30, 05:10 UTCJun 30, 06:10 UTC1h 0m
2026-06-29 SAS79E - Jun 29, 20:30 UTCJun 29, 21:39 UTC1h 10m
2026-06-29 SAS95W ARN → BER Jun 29, 18:05 UTCJun 29, 19:35 UTC1h 30m
2026-06-29 SAS1408 - Jun 29, 16:04 UTCJun 29, 16:55 UTC50m
2026-06-29 SAS1407 ARN → CPH Jun 29, 13:14 UTCJun 29, 14:14 UTC1h 0m
2026-06-29 SAS82K - Jun 29, 04:04 UTCJun 29, 05:09 UTC1h 5m
2026-06-28 SAS22Y - Jun 28, 20:04 UTCJun 28, 21:04 UTC1h 0m
2026-06-28 SAS62F - Jun 28, 17:04 UTCJun 28, 18:14 UTC1h 10m
2026-06-28 SAS1044 - Jun 28, 14:54 UTCJun 28, 16:09 UTC1h 15m
2026-06-28 SAS46C - Jun 28, 12:25 UTCJun 28, 13:25 UTC1h 0m
2026-06-28 SAS010 - Jun 28, 10:39 UTCJun 28, 11:35 UTC55m
2026-06-28 SAS898 BGO → ARN Jun 28, 08:44 UTCJun 28, 09:39 UTC55m
2026-06-28 SAS96X ARN → BGO Jun 28, 06:40 UTCJun 28, 07:54 UTC1h 15m
2026-06-27 SAS528 - Jun 27, 16:55 UTCJun 27, 18:45 UTC1h 50m
2026-06-27 SAS527 ARN → LHR Jun 27, 13:09 UTCJun 27, 15:30 UTC2h 20m
2026-06-27 SAS55Q - Jun 27, 08:14 UTCJun 27, 10:50 UTC2h 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.

Prefer a tail-number view? See the SE-DOZ page for operator, model, and routing details .

Mode-S 4A91FA frequently asked

What is Mode-S code 4A91FA?
4A91FA is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-DOZ.
Where is Mode-S 4A91FA registered?
Mode-S code 4A91FA is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A91FA broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A91FA, octal 22510772, decimal 4,887,034.
What flights does 4A91FA operate?
Mode-S 4A91FA has broadcast 20 distinct callsigns, including SAS82K, SAS35K, SAS55A, SAS46C, SAS010.