sensors Mode-S transponder

4ACAA4

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACAA4
Octal
22545244
Decimal
4,901,540
Country
SE
Tail
SE-RUD
Type
A20N
Broadcasting now · callsign SAS7313 · 39,050 ft
Flights observed
263
Distinct callsigns
20
Country
SE
Last broadcast
2h ago

Current position

4ACAA4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACAA4 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
2026-05-30 SAS7313 MOL → CHQ May 30, 05:40 UTCMay 30, 07:00 UTC1h 20m
2026-05-29 SAS4124 OSL → BOO May 29, 19:00 UTCMay 29, 20:10 UTC1h 10m
2026-05-29 SAS45E BGO → OSL May 29, 15:45 UTCMay 29, 16:20 UTC35m
2026-05-29 SAS79P OSL → BGO May 29, 14:20 UTCMay 29, 15:00 UTC40m
2026-05-29 SAS4680 AGP → OSL May 29, 09:40 UTCMay 29, 13:15 UTC3h 35m
2026-05-29 SAS4679 OSL → AGP May 29, 04:45 UTCMay 29, 08:25 UTC3h 40m
2026-05-28 SAS810 LHR → OSL May 28, 16:50 UTCMay 28, 18:30 UTC1h 40m
2026-05-28 SAS809 OSL → LHR May 28, 13:10 UTCMay 28, 15:15 UTC2h 5m
2026-05-28 SAS20W MXP → OSL May 28, 09:35 UTCMay 28, 12:10 UTC2h 35m
2026-05-28 SAS4717 OSL → MXP May 28, 05:55 UTCMay 28, 08:10 UTC2h 15m
2026-05-27 SAS810 LHR → OSL May 27, 16:50 UTCMay 27, 18:30 UTC1h 40m
2026-05-27 SAS809 OSL → LHR May 27, 13:25 UTCMay 27, 15:10 UTC1h 45m
2026-05-27 SAS341 TRD → OSL May 27, 05:09 UTCMay 27, 05:49 UTC40m
2026-05-26 SAS380 OSL → TRD May 26, 19:05 UTCMay 26, 19:40 UTC35m
2026-05-26 SAS4417 TOS → OSL May 26, 12:40 UTCMay 26, 14:09 UTC1h 30m
2026-05-26 SAS53F OSL → TOS May 26, 10:14 UTCMay 26, 11:34 UTC1h 20m
2026-05-26 SAS260 BGO → OSL May 26, 08:45 UTCMay 26, 09:19 UTC35m
2026-05-26 SAS88E OSL → BGO May 26, 06:54 UTCMay 26, 07:40 UTC45m
2026-05-26 SAS236 BGO → OSL May 26, 04:35 UTCMay 26, 05:10 UTC35m
2026-05-25 SAS295 OSL → BGO May 25, 19:59 UTCMay 25, 20:45 UTC45m
2026-05-25 SAS69C TOS → OSL May 25, 14:20 UTCMay 25, 15:50 UTC1h 30m
2026-05-25 SAS54T OSL → TOS May 25, 11:50 UTCMay 25, 13:15 UTC1h 25m
2026-05-25 SAS64P TOS → OSL May 25, 09:05 UTCMay 25, 10:40 UTC1h 35m
2026-05-25 SAS89C OSL → TOS May 25, 06:35 UTCMay 25, 08:00 UTC1h 25m
2026-05-24 SAS1483 ARN → OSL May 24, 20:30 UTCMay 24, 21:20 UTC50m
2026-05-24 SAS492 ARN → OSL May 24, 19:00 UTCMay 24, 19:35 UTC35m
2026-05-24 SAS7380 LCA → OSL May 24, 09:35 UTCMay 24, 10:15 UTC40m
2026-05-24 SAS7379 OSL → LCA May 24, 04:15 UTCMay 24, 08:15 UTC4h 0m
2026-05-23 SAS4698 LPA → OSL May 23, 15:30 UTCMay 23, 20:35 UTC5h 5m
2026-05-23 SAS4697 OSL → LPA May 23, 08:45 UTCMay 23, 14:05 UTC5h 20m
2026-05-22 SAS4032 SVG → OSL May 22, 13:35 UTCMay 22, 14:15 UTC40m
2026-05-22 SAS4031 OSL → SVG May 22, 12:05 UTCMay 22, 12:45 UTC40m
2026-05-22 SAS50G CPH → OSL May 22, 09:55 UTCMay 22, 10:50 UTC55m
2026-05-22 SAS43C OSL → CPH May 22, 08:05 UTCMay 22, 08:45 UTC40m
2026-05-22 SAS52L PMI → CPH May 22, 06:20 UTCMay 22, 07:10 UTC50m
2026-05-22 SAS73A OSL → CPH May 22, 04:15 UTCMay 22, 05:05 UTC50m
2026-05-21 SAS4830 HAM → OSL May 21, 19:35 UTCMay 21, 20:50 UTC1h 15m
2026-05-21 SAS4829 OSL → HAM May 21, 17:35 UTCMay 21, 18:35 UTC1h 0m
2026-05-21 SAS1323 AES → OSL May 21, 15:55 UTCMay 21, 16:30 UTC35m
2026-05-21 SAS1322 OSL → AES May 21, 14:25 UTCMay 21, 14:55 UTC30m
2026-05-21 SAS4491 LYR → OSL May 21, 11:55 UTCMay 21, 13:30 UTC1h 35m
2026-05-21 SAS4490 OSL → LYR May 21, 07:20 UTCMay 21, 08:40 UTC1h 20m
2026-05-21 SAS4079 EVE → OSL May 21, 04:30 UTCMay 21, 06:00 UTC1h 30m
2026-05-20 SAS4098 OSL → EVE May 20, 18:45 UTCMay 20, 19:50 UTC1h 5m
2026-05-20 SAS4117 BOO → OSL May 20, 15:50 UTCMay 20, 17:00 UTC1h 10m
2026-05-20 SAS96D OSL → BOO May 20, 13:50 UTCMay 20, 14:55 UTC1h 5m
2026-05-20 SAS20W MXP → OSL May 20, 10:35 UTCMay 20, 12:40 UTC2h 5m
2026-05-20 SAS4717 OSL → MXP May 20, 06:50 UTCMay 20, 09:10 UTC2h 20m
2026-05-20 SAS236 BGO → OSL May 20, 04:35 UTCMay 20, 05:10 UTC36m
2026-05-19 SAS43D OSL → BGO May 19, 18:35 UTCMay 19, 19:10 UTC35m

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

Mode-S 4ACAA4 frequently asked

What is Mode-S code 4ACAA4?
4ACAA4 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RUD.
Where is Mode-S 4ACAA4 registered?
Mode-S code 4ACAA4 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACAA4 broadcasting right now?
Yes. Mode-S 4ACAA4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACAA4, octal 22545244, decimal 4,901,540.
What flights does 4ACAA4 operate?
Mode-S 4ACAA4 has broadcast 20 distinct callsigns, including SAS4434, SAS4124, SAS97F, SAS885, SAS834.