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
267
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SAS2546 EDI → ARN May 29, 18:55 UTCMay 29, 20:45 UTC1h 50m
2026-05-29 SAS2545 ARN → EDI May 29, 15:40 UTCMay 29, 17:40 UTC2h 0m
2026-05-29 SAS58M LIN → ARN May 29, 11:50 UTCMay 29, 14:10 UTC2h 20m
2026-05-29 SAS63Z ARN → LIN May 29, 08:10 UTCMay 29, 10:30 UTC2h 20m
2026-05-29 SAS83L LLA → ARN May 29, 05:05 UTCMay 29, 06:05 UTC1h 0m
2026-05-28 SAS22Y ARN → LLA May 28, 20:25 UTCMay 28, 21:25 UTC1h 0m
2026-05-28 SAS126 MMX → ARN May 28, 18:40 UTCMay 28, 19:30 UTC50m
2026-05-28 SAS121 ARN → MMX May 28, 16:20 UTCMay 28, 17:05 UTC45m
2026-05-28 SAS1804 AGP → ARN May 28, 10:45 UTCMay 28, 14:50 UTC4h 5m
2026-05-28 SAS245E ARN → AGP May 28, 05:20 UTCMay 28, 09:10 UTC3h 50m
2026-05-26 SAS884 OSL → ARN May 26, 15:20 UTCMay 26, 15:54 UTC35m
2026-05-26 SAS883 ARN → OSL May 26, 13:24 UTCMay 26, 14:14 UTC50m
2026-05-26 SAS61A CPH → ARN May 26, 11:09 UTCMay 26, 12:05 UTC55m
2026-05-26 SAS1421 ARN → CPH May 26, 09:15 UTCMay 26, 10:14 UTC1h 0m
2026-05-26 SAS60P ARN → OSL May 26, 06:34 UTCMay 26, 07:10 UTC35m
2026-05-26 SAS485 ARN → OSL May 26, 04:30 UTCMay 26, 05:20 UTC50m
2026-05-25 SAS1410 CPH → ARN May 25, 19:30 UTCMay 25, 20:24 UTC55m
2026-05-25 SAS39C ARN → CPH May 25, 17:10 UTCMay 25, 18:05 UTC55m
2026-05-25 SAS1408 CPH → ARN May 25, 15:15 UTCMay 25, 16:15 UTC1h 0m
2026-05-25 SAS1407 ARN → CPH May 25, 13:10 UTCMay 25, 14:05 UTC55m
2026-05-25 SAS007 - May 25, 10:10 UTCMay 25, 11:10 UTC1h 0m
2026-05-25 SAS006 - May 25, 08:20 UTCMay 25, 09:20 UTC1h 0m
2026-05-25 SAS2005 LLA → ARN May 25, 06:10 UTCMay 25, 07:15 UTC1h 5m
2026-05-25 SAS2004 ARN → LLA May 25, 04:20 UTCMay 25, 05:20 UTC1h 0m
2026-05-24 SAS1600 BRU → ARN May 24, 19:50 UTCMay 24, 21:35 UTC1h 45m
2026-05-24 SAS64A ARN → BRU May 24, 16:55 UTCMay 24, 18:45 UTC1h 50m
2026-05-24 SAS1025 SFT → ARN May 24, 15:10 UTCMay 24, 15:55 UTC45m
2026-05-24 SAS1024 ARN → SFT May 24, 13:25 UTCMay 24, 14:25 UTC1h 0m
2026-05-24 SAS2065 OSD → ARN May 24, 11:40 UTCMay 24, 12:25 UTC45m
2026-05-24 SAS2064 ARN → OSD May 24, 10:10 UTCMay 24, 11:00 UTC50m
2026-05-24 SAS57J KRN → ARN May 24, 07:50 UTCMay 24, 09:10 UTC1h 20m
2026-05-24 SAS62Y ARN → KRN May 24, 05:50 UTCMay 24, 07:00 UTC1h 10m
2026-05-23 SAS1810 PMI → ARN May 23, 17:50 UTCMay 23, 21:20 UTC3h 31m
2026-05-23 SAS1809 ARN → PMI May 23, 13:20 UTCMay 23, 16:30 UTC3h 10m
2026-05-23 SAS7890 CFU → ARN May 23, 08:35 UTCMay 23, 11:45 UTC3h 10m
2026-05-23 SAS7889 ARN → CFU May 23, 04:10 UTCMay 23, 06:45 UTC2h 35m
2026-05-22 SAS021 LLA → ARN May 22, 19:25 UTCMay 22, 20:25 UTC1h 0m
2026-05-22 SAS97T ARN → LLA May 22, 17:40 UTCMay 22, 18:40 UTC1h 0m
2026-05-22 SAS31A LLA → ARN May 22, 15:40 UTCMay 22, 16:40 UTC1h 0m
2026-05-22 SAS12B ARN → LLA May 22, 13:55 UTCMay 22, 14:55 UTC1h 0m
2026-05-22 SAS30P LLA → ARN May 22, 11:45 UTCMay 22, 12:45 UTC1h 0m
2026-05-22 SAS69H ARN → LLA May 22, 09:55 UTCMay 22, 10:55 UTC1h 0m
2026-05-22 SAS2678 BER → ARN May 22, 07:35 UTCMay 22, 09:00 UTC1h 25m
2026-05-22 SAS2677 ARN → BER May 22, 05:15 UTCMay 22, 06:25 UTC1h 10m
2026-05-21 SAS019 LLA → ARN May 21, 18:00 UTCMay 21, 19:00 UTC1h 0m
2026-05-21 SAS016 ARN → LLA May 21, 16:10 UTCMay 21, 17:10 UTC1h 0m
2026-05-21 SAS1812 BCN → ARN May 21, 11:15 UTCMay 21, 14:35 UTC3h 20m
2026-05-21 SAS1811 ARN → BCN May 21, 06:40 UTCMay 21, 09:45 UTC3h 5m
2026-05-20 SAS1558 AMS → ARN May 20, 19:30 UTCMay 20, 21:00 UTC1h 30m
2026-05-20 SAS1557 ARN → AMS May 20, 16:35 UTCMay 20, 18:20 UTC1h 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-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, SAS46C, SAS010, SAS97T, SAS884.