sensors Mode-S transponder

4ACAA2

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACAA2
Octal
22545242
Decimal
4,901,538
Country
SE
Tail
SE-RUB
Type
A20N
Broadcasting now · callsign SAS7302 · 36,050 ft
Flights observed
248
Distinct callsigns
20
Country
SE
Last broadcast
1h ago

Current position

4ACAA2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACAA2 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 SAS7302 CHQ → AES May 30, 13:50 UTCMay 30, 14:30 UTC40m
2026-05-30 SAS7381 EVE → CHQ May 30, 07:15 UTCMay 30, 11:40 UTC4h 25m
2026-05-29 SAS4098 OSL → EVE May 29, 18:50 UTCMay 29, 19:50 UTC1h 0m
2026-05-29 SAS48C BGO → OSL May 29, 16:35 UTCMay 29, 17:15 UTC40m
2026-05-29 SAS277 OSL → BGO May 29, 15:20 UTCMay 29, 15:55 UTC35m
2026-05-29 SAS842 ZRH → OSL May 29, 12:05 UTCMay 29, 14:15 UTC2h 10m
2026-05-29 SAS841 OSL → ZRH May 29, 08:40 UTCMay 29, 10:40 UTC2h 0m
2026-05-29 SAS4008 SVG → OSL May 29, 05:25 UTCMay 29, 06:05 UTC40m
2026-05-28 SAS4049 OSL → SVG May 28, 17:35 UTCMay 28, 18:15 UTC40m
2026-05-28 SAS375 TRD → OSL May 28, 15:45 UTCMay 28, 16:20 UTC35m
2026-05-28 SAS362 OSL → TRD May 28, 14:30 UTCMay 28, 15:15 UTC45m
2026-05-28 SAS78K DUS → OSL May 28, 12:05 UTCMay 28, 13:40 UTC1h 35m
2026-05-28 SAS816 OSL → DUS May 28, 09:30 UTCMay 28, 11:00 UTC1h 30m
2026-05-28 SAS58G TRD → OSL May 28, 07:30 UTCMay 28, 08:15 UTC45m
2026-05-28 SAS332 OSL → TRD May 28, 06:00 UTCMay 28, 06:40 UTC40m
2026-05-27 SAS897 ARN → OSL May 27, 20:00 UTCMay 27, 20:45 UTC45m
2026-05-27 SAS886 OSL → ARN May 27, 18:10 UTCMay 27, 19:00 UTC50m
2026-05-27 SAS11M ALC → OSL May 27, 12:25 UTCMay 27, 15:45 UTC3h 20m
2026-05-27 SAS22E FCO → CPH May 27, 07:30 UTCMay 27, 10:50 UTC3h 20m
2026-05-27 SAS78A BGO → OSL May 27, 05:35 UTCMay 27, 06:09 UTC35m
2026-05-26 SAS43D OSL → BGO May 26, 18:34 UTCMay 26, 19:20 UTC45m
2026-05-26 SAS885 ARN → OSL May 26, 16:59 UTCMay 26, 17:44 UTC45m
2026-05-26 SAS55C OSL → ARN May 26, 14:55 UTCMay 26, 15:35 UTC40m
2026-05-26 SAS78K DUS → OSL May 26, 12:10 UTCMay 26, 13:40 UTC1h 30m
2026-05-26 SAS816 OSL → DUS May 26, 09:35 UTCMay 26, 11:09 UTC1h 35m
2026-05-26 SAS78A BGO → OSL May 26, 05:45 UTCMay 26, 06:20 UTC35m
2026-05-25 SAS43D OSL → BGO May 25, 17:40 UTCMay 25, 18:25 UTC45m
2026-05-25 SAS4038 SVG → OSL May 25, 14:15 UTCMay 25, 14:50 UTC35m
2026-05-25 SAS24C OSL → SVG May 25, 12:50 UTCMay 25, 13:30 UTC40m
2026-05-24 SAS385 TRD → OSL May 24, 19:25 UTCMay 24, 20:05 UTC40m
2026-05-24 SAS54B OSL → TRD May 24, 18:10 UTCMay 24, 18:55 UTC45m
2026-05-24 SAS69C TOS → OSL May 24, 15:30 UTCMay 24, 17:00 UTC1h 30m
2026-05-24 SAS4420 OSL → TOS May 24, 13:10 UTCMay 24, 14:30 UTC1h 20m
2026-05-24 SAS1456 CPH → OSL May 24, 11:20 UTCMay 24, 12:10 UTC50m
2026-05-24 SAS1467 OSL → CPH May 24, 09:15 UTCMay 24, 10:05 UTC50m
2026-05-24 SAS4079 EVE → OSL May 24, 05:55 UTCMay 24, 07:15 UTC1h 20m
2026-05-23 SAS7382 CHQ → EVE May 23, 13:05 UTCMay 23, 17:30 UTC4h 25m
2026-05-23 SAS7301 AES → CHQ May 23, 07:25 UTCMay 23, 11:15 UTC3h 50m
2026-05-22 SAS1334 OSL → AES May 22, 18:25 UTCMay 22, 18:55 UTC30m
2026-05-22 SAS462 CPH → OSL May 22, 16:10 UTCMay 22, 17:15 UTC1h 5m
2026-05-22 SAS10C OSL → CPH May 22, 14:05 UTCMay 22, 15:00 UTC55m
2026-05-21 SAS93L CDG → OSL May 21, 18:35 UTCMay 21, 20:25 UTC1h 50m
2026-05-21 SAS839 OSL → CDG May 21, 15:25 UTCMay 21, 17:25 UTC2h 0m
2026-05-21 SAS4113 BOO → OSL May 21, 13:05 UTCMay 21, 14:25 UTC1h 20m
2026-05-21 SAS4112 OSL → BOO May 21, 11:00 UTCMay 21, 12:10 UTC1h 10m
2026-05-21 SAS4107 BOO → OSL May 21, 08:40 UTCMay 21, 09:50 UTC1h 10m
2026-05-21 SAS61G OSL → BOO May 21, 06:45 UTCMay 21, 07:50 UTC1h 5m
2026-05-20 SAS69C TOS → OSL May 20, 14:15 UTCMay 20, 15:45 UTC1h 30m
2026-05-20 SAS54T OSL → TOS May 20, 11:55 UTCMay 20, 13:15 UTC1h 20m
2026-05-20 SAS64P TOS → OSL May 20, 08:55 UTCMay 20, 10:30 UTC1h 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-RUB page for operator, model, and routing details .

Mode-S 4ACAA2 frequently asked

What is Mode-S code 4ACAA2?
4ACAA2 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RUB.
Where is Mode-S 4ACAA2 registered?
Mode-S code 4ACAA2 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACAA2 broadcasting right now?
Yes. Mode-S 4ACAA2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACAA2, octal 22545242, decimal 4,901,538.
What flights does 4ACAA2 operate?
Mode-S 4ACAA2 has broadcast 20 distinct callsigns, including SAS2551, SAS62L, SAS4473, SAS4038, SAS24C.