sensors Mode-S transponder

4ACAA6

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACAA6
Octal
22545246
Decimal
4,901,542
Country
SE
Tail
SE-RUF
Type
A20N
Broadcasting now · callsign SAS73A · 23,050 ft
Flights observed
256
Distinct callsigns
20
Country
SE
Last broadcast
11h ago

Current position

4ACAA6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACAA6 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 SAS7091 OSL → OSL May 29, 10:55 UTCMay 29, 17:10 UTC6h 15m
2026-05-29 SAS44Z TOS → OSL May 29, 06:45 UTCMay 29, 08:15 UTC1h 30m
2026-05-28 SAS4434 OSL → TOS May 28, 17:00 UTCMay 28, 18:20 UTC1h 20m
2026-05-28 SAS1323 AES → OSL May 28, 15:30 UTCMay 28, 16:05 UTC35m
2026-05-28 SAS1322 OSL → AES May 28, 14:05 UTCMay 28, 14:35 UTC30m
2026-05-28 SAS71A BOO → OSL May 28, 12:10 UTCMay 28, 13:15 UTC1h 5m
2026-05-28 SAS67B OSL → BOO May 28, 10:05 UTCMay 28, 11:15 UTC1h 10m
2026-05-28 SAS452 CPH → OSL May 28, 08:05 UTCMay 28, 08:55 UTC50m
2026-05-28 SAS56T OSL → CPH May 28, 06:15 UTCMay 28, 07:05 UTC50m
2026-05-27 SAS4479 KKN → OSL May 27, 17:20 UTCMay 27, 21:55 UTC4h 35m
2026-05-27 SAS373 TRD → OSL May 27, 15:05 UTCMay 27, 15:50 UTC45m
2026-05-27 SAS358 OSL → TRD May 27, 13:40 UTCMay 27, 14:20 UTC40m
2026-05-27 SAS834 CDG → OSL May 27, 10:45 UTCMay 27, 12:40 UTC1h 55m
2026-05-27 SAS97F OSL → CDG May 27, 07:10 UTCMay 27, 09:15 UTC2h 5m
2026-05-27 SAS4105 BOO → OSL May 27, 04:39 UTCMay 27, 05:49 UTC1h 10m
2026-05-26 SAS4124 OSL → BOO May 26, 18:59 UTCMay 26, 20:09 UTC1h 10m
2026-05-26 SAS462 CPH → OSL May 26, 16:05 UTCMay 26, 17:04 UTC1h 0m
2026-05-26 SAS10C OSL → CPH May 26, 14:14 UTCMay 26, 15:09 UTC55m
2026-05-26 SAS71A BOO → OSL May 26, 12:10 UTCMay 26, 13:19 UTC1h 10m
2026-05-26 SAS67B OSL → BOO May 26, 10:10 UTCMay 26, 11:15 UTC1h 5m
2026-05-26 SAS4016 SVG → OSL May 26, 08:15 UTCMay 26, 08:50 UTC35m
2026-05-26 SAS4017 OSL → SVG May 26, 06:39 UTCMay 26, 07:24 UTC45m
2026-05-24 SAS883 ARN → OSL May 24, 17:45 UTCMay 24, 18:25 UTC40m
2026-05-24 SAS88K CDG → ARN May 24, 08:45 UTCMay 24, 10:50 UTC2h 5m
2026-05-24 SAS85Y OSL → BCN May 24, 05:10 UTCMay 24, 07:25 UTC2h 15m
2026-05-23 SAS2690 MXP → ARN May 23, 18:45 UTCMay 23, 21:15 UTC2h 30m
2026-05-23 SAS2689 ARN → MXP May 23, 15:10 UTCMay 23, 17:30 UTC2h 20m
2026-05-23 SAS58M LIN → ARN May 23, 11:10 UTCMay 23, 13:25 UTC2h 15m
2026-05-23 SAS63Z ARN → LIN May 23, 07:45 UTCMay 23, 10:00 UTC2h 15m
2026-05-22 SAS2690 MXP → ARN May 22, 18:15 UTCMay 22, 20:45 UTC2h 30m
2026-05-22 SAS2689 ARN → MXP May 22, 14:30 UTCMay 22, 16:50 UTC2h 20m
2026-05-22 SAS1916 FLR → ARN May 22, 08:25 UTCMay 22, 11:05 UTC2h 40m
2026-05-22 SAS1915 ARN → FLR May 22, 04:20 UTCMay 22, 06:40 UTC2h 20m
2026-05-21 SAS64E DUB → ARN May 21, 19:05 UTCMay 21, 21:15 UTC2h 10m
2026-05-21 SAS63H ARN → DUB May 21, 15:35 UTCMay 21, 18:00 UTC2h 25m
2026-05-21 SAS58M LIN → ARN May 21, 11:10 UTCMay 21, 13:35 UTC2h 25m
2026-05-21 SAS63Z ARN → LIN May 21, 07:30 UTCMay 21, 09:40 UTC2h 10m
2026-05-21 SAS83L LLA → ARN May 21, 05:05 UTCMay 21, 06:05 UTC1h 0m
2026-05-20 SAS22Y ARN → LLA May 20, 19:50 UTCMay 20, 20:45 UTC55m
2026-05-20 SAS126 MMX → ARN May 20, 17:55 UTCMay 20, 18:45 UTC50m
2026-05-20 SAS121 ARN → MMX May 20, 16:25 UTCMay 20, 17:10 UTC45m
2026-05-20 SAS2065 OSD → ARN May 20, 13:50 UTCMay 20, 14:35 UTC45m
2026-05-20 SAS2064 ARN → OSD May 20, 12:20 UTCMay 20, 13:05 UTC45m
2026-05-20 SAS2860 NAP → ARN May 20, 08:25 UTCMay 20, 11:20 UTC2h 55m
2026-05-20 SAS2859 ARN → NAP May 20, 04:10 UTCMay 20, 06:45 UTC2h 36m
2026-05-19 SAS1812 BCN → ARN May 19, 17:00 UTCMay 19, 20:05 UTC3h 5m
2026-05-19 SAS1811 ARN → BCN May 19, 12:40 UTCMay 19, 15:50 UTC3h 10m
2026-05-19 SAS77A BRU → ARN May 19, 09:15 UTCMay 19, 11:00 UTC1h 45m
2026-05-19 SAS589 ARN → BRU May 19, 06:15 UTCMay 19, 08:10 UTC1h 55m
2026-05-18 SAS67M FCO → ARN May 18, 19:00 UTCMay 18, 21:40 UTC2h 40m

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

Mode-S 4ACAA6 frequently asked

What is Mode-S code 4ACAA6?
4ACAA6 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RUF.
Where is Mode-S 4ACAA6 registered?
Mode-S code 4ACAA6 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACAA6 broadcasting right now?
Yes. Mode-S 4ACAA6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACAA6, octal 22545246, decimal 4,901,542.
What flights does 4ACAA6 operate?
Mode-S 4ACAA6 has broadcast 20 distinct callsigns, including SAS4552, SAS4581, SAS4572, SAS4561, SAS78K.