Apparatus

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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 Jul 26, 20:40 UTC
Flights observed
494
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 20:40 UTC

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
2026-07-26 SAS812 LHR → OSL Jul 26, 19:00 UTCJul 26, 20:40 UTC1h 40m
2026-07-26 SAS811 OSL → LHR Jul 26, 15:40 UTCJul 26, 17:35 UTC1h 55m
2026-07-26 SAS4774 GZP → OSL Jul 26, 10:20 UTCJul 26, 14:30 UTC4h 10m
2026-07-26 SAS4773 OSL → GZP Jul 26, 05:05 UTCJul 26, 08:50 UTC3h 46m
2026-07-25 SAS37A ALC → OSL Jul 25, 20:35 UTCJul 26, 00:00 UTC3h 25m
2026-07-25 SAS76F OSL → ALC Jul 25, 15:45 UTCJul 25, 19:10 UTC3h 25m
2026-07-25 SAS65G ALC → OSL Jul 25, 10:20 UTCJul 25, 13:40 UTC3h 20m
2026-07-25 SAS22E FCO → CPH Jul 25, 04:50 UTCJul 25, 08:25 UTC3h 35m
2026-07-24 SAS4634 CHQ → OSL Jul 24, 19:55 UTCJul 25, 00:00 UTC4h 5m
2026-07-24 SAS4633 OSL → CHQ Jul 24, 15:15 UTCJul 24, 18:30 UTC3h 15m
2026-07-24 SAS11M ALC → OSL Jul 24, 09:05 UTCJul 24, 12:30 UTC3h 25m
2026-07-24 SAS22E FCO → CPH Jul 24, 04:10 UTCJul 24, 07:40 UTC3h 30m
2026-07-23 SAS1476 CPH → OSL Jul 23, 20:10 UTCJul 23, 21:10 UTC1h 0m
2026-07-23 SAS2788 SPU → CPH Jul 23, 17:00 UTCJul 23, 18:50 UTC1h 50m
2026-07-23 SAS2787 - Jul 23, 13:55 UTCJul 23, 15:40 UTC1h 45m
2026-07-23 SAS2992 RHO → CPH Jul 23, 09:00 UTCJul 23, 12:30 UTC3h 30m
2026-07-23 SAS2991 CPH → RHO Jul 23, 04:10 UTCJul 23, 07:10 UTC3h 0m
2026-07-22 SAS66Z FAO → CPH Jul 22, 16:10 UTCJul 22, 19:30 UTC3h 20m
2026-07-22 SAS23N - Jul 22, 11:25 UTCJul 22, 15:00 UTC3h 35m
2026-07-22 SAS2861 BGO → CPH Jul 22, 04:10 UTCJul 22, 05:10 UTC1h 0m
2026-07-21 SAS4730 - Jul 21, 18:05 UTCJul 21, 21:35 UTC3h 30m
2026-07-21 SAS4657 SVG → ALC Jul 21, 13:40 UTCJul 21, 16:45 UTC3h 5m
2026-07-21 SAS85T ALC → SVG Jul 21, 09:20 UTCJul 21, 12:35 UTC3h 15m
2026-07-21 SAS4729 BGO → ALC Jul 21, 04:40 UTCJul 21, 07:55 UTC3h 15m
2026-07-20 SAS4652 AGP → BGO Jul 20, 18:55 UTCJul 20, 22:30 UTC3h 35m
2026-07-20 SAS4651 BGO → AGP Jul 20, 14:00 UTCJul 20, 17:25 UTC3h 25m
2026-07-20 SAS34A OSL → BGO Jul 20, 12:15 UTCJul 20, 12:55 UTC40m
2026-07-20 SAS4804 SPU → OSL Jul 20, 08:50 UTCJul 20, 11:15 UTC2h 25m
2026-07-20 SAS4803 OSL → SPU Jul 20, 05:05 UTCJul 20, 07:25 UTC2h 20m
2026-07-19 SAS812 LHR → OSL Jul 19, 19:35 UTCJul 19, 21:40 UTC2h 5m
2026-07-19 SAS811 OSL → LHR Jul 19, 15:45 UTCJul 19, 17:30 UTC1h 45m
2026-07-19 SAS7380 LCA → OSL Jul 19, 09:40 UTCJul 19, 14:00 UTC4h 20m
2026-07-19 SAS7379 OSL → LCA Jul 19, 04:15 UTCJul 19, 08:25 UTC4h 10m
2026-07-18 SAS1470 CPH → OSL Jul 18, 17:45 UTCJul 18, 18:35 UTC50m
2026-07-18 SAS1465 OSL → CPH Jul 18, 15:50 UTCJul 18, 16:40 UTC50m
2026-07-18 SAS4774 - Jul 18, 09:10 UTCJul 18, 13:10 UTC4h 0m
2026-07-18 SAS4773 OSL → GZP Jul 18, 04:20 UTCJul 18, 08:10 UTC3h 50m
2026-07-17 SAS4840 - Jul 17, 11:39 UTCJul 17, 14:00 UTC2h 20m
2026-07-17 SAS4839 - Jul 17, 06:10 UTCJul 17, 08:30 UTC2h 20m
2026-07-17 SAS339 TRD → OSL Jul 17, 04:10 UTCJul 17, 04:49 UTC40m
2026-07-16 SAS382 OSL → TRD Jul 16, 20:35 UTCJul 16, 21:15 UTC40m
2026-07-16 SAS4493 OSL → OSL Jul 16, 11:54 UTCJul 16, 18:05 UTC6h 10m
2026-07-16 SAS4842 ZRH → OSL Jul 16, 08:10 UTCJul 16, 10:10 UTC2h 0m
2026-07-16 SAS4841 - Jul 16, 05:10 UTCJul 16, 07:05 UTC1h 55m
2026-07-15 SAS4698 - Jul 15, 16:10 UTCJul 15, 21:05 UTC4h 55m
2026-07-15 SAS4697 - Jul 15, 09:30 UTCJul 15, 14:40 UTC5h 10m
2026-07-14 SAS30E - Jul 14, 20:05 UTCJul 14, 22:00 UTC1h 55m
2026-07-14 SAS60K OSL → DUB Jul 14, 17:15 UTCJul 14, 18:55 UTC1h 40m
2026-07-14 SAS4774 - Jul 14, 09:00 UTCJul 14, 13:00 UTC4h 0m
2026-07-14 SAS4773 - Jul 14, 04:10 UTCJul 14, 08:00 UTC3h 50m

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 Jul 26, 20:40 UTC.
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.