sensors Mode-S transponder

4ACB59

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4ACB59
Octal
22545531
Decimal
4,901,721
Country
SE
Tail
SE-RZY
Type
A20N
No current signal · last broadcast 5h ago
Flights observed
293
Distinct callsigns
20
Country
SE
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4ACB59.

Country allocation

The ICAO 24-bit address 4ACB59 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 SAS1334 OSL → AES May 29, 19:25 UTCMay 29, 19:50 UTC25m
2026-05-29 SAS4095 EVE → OSL May 29, 15:35 UTCMay 29, 16:50 UTC1h 15m
2026-05-29 SAS4094 OSL → EVE May 29, 13:10 UTCMay 29, 14:20 UTC1h 10m
2026-05-29 SAS4744 BRU → OSL May 29, 09:25 UTCMay 29, 11:00 UTC1h 35m
2026-05-29 SAS66A OSL → BRU May 29, 06:50 UTCMay 29, 08:20 UTC1h 30m
2026-05-29 SAS341 TRD → OSL May 29, 05:05 UTCMay 29, 05:45 UTC40m
2026-05-28 SAS380 OSL → TRD May 28, 18:40 UTCMay 28, 19:25 UTC45m
2026-05-28 SAS48C BGO → OSL May 28, 16:35 UTCMay 28, 17:10 UTC35m
2026-05-28 SAS277 OSL → BGO May 28, 15:15 UTCMay 28, 15:55 UTC40m
2026-05-28 SAS4490 OSL → LYR May 28, 07:10 UTCMay 28, 13:25 UTC6h 15m
2026-05-28 SAS4105 BOO → OSL May 28, 04:30 UTCMay 28, 05:45 UTC1h 15m
2026-05-27 SAS4124 OSL → BOO May 27, 19:05 UTCMay 27, 20:20 UTC1h 15m
2026-05-27 SAS48C BGO → OSL May 27, 16:50 UTCMay 27, 17:25 UTC35m
2026-05-27 SAS277 OSL → BGO May 27, 15:30 UTCMay 27, 16:10 UTC40m
2026-05-27 SAS842 ZRH → OSL May 27, 12:20 UTCMay 27, 14:25 UTC2h 5m
2026-05-27 SAS841 OSL → ZRH May 27, 08:45 UTCMay 27, 10:40 UTC1h 55m
2026-05-27 SAS52L PMI → CPH May 27, 06:20 UTCMay 27, 07:15 UTC56m
2026-05-27 SAS73A OSL → CPH May 27, 04:04 UTCMay 27, 04:59 UTC55m
2026-05-26 SAS286 BGO → OSL May 26, 17:59 UTCMay 26, 18:30 UTC30m
2026-05-26 SAS281 OSL → BGO May 26, 16:45 UTCMay 26, 17:25 UTC40m
2026-05-26 SAS11M ALC → OSL May 26, 12:35 UTCMay 26, 15:49 UTC3h 15m
2026-05-26 SAS22E FCO → CPH May 26, 07:19 UTCMay 26, 10:39 UTC3h 20m
2026-05-26 SAS69L TOS → OSL May 26, 04:10 UTCMay 26, 05:34 UTC1h 25m
2026-05-25 SAS27E OSL → TOS May 25, 18:50 UTCMay 25, 20:15 UTC1h 24m
2026-05-25 SAS842 ZRH → OSL May 25, 12:15 UTCMay 25, 14:25 UTC2h 10m
2026-05-25 SAS841 OSL → ZRH May 25, 08:40 UTCMay 25, 10:35 UTC1h 55m
2026-05-25 SAS847 ARN → OSL May 25, 06:20 UTCMay 25, 07:15 UTC55m
2026-05-25 SAS50B OSL → ARN May 25, 04:40 UTCMay 25, 05:20 UTC40m
2026-05-24 SAS4479 KKN → OSL May 24, 16:10 UTCMay 24, 20:20 UTC4h 10m
2026-05-24 SAS4492 OSL → LYR May 24, 09:00 UTCMay 24, 15:15 UTC6h 15m
2026-05-24 SAS4107 BOO → OSL May 24, 06:50 UTCMay 24, 08:00 UTC1h 10m
2026-05-23 SAS7314 CHQ → BOO May 23, 12:40 UTCMay 23, 17:20 UTC4h 40m
2026-05-23 SAS7355 TOS → CHQ May 23, 06:10 UTCMay 23, 10:45 UTC4h 35m
2026-05-22 SAS4438 OSL → TOS May 22, 18:35 UTCMay 22, 20:00 UTC1h 25m
2026-05-22 SAS885 ARN → OSL May 22, 16:25 UTCMay 22, 17:10 UTC45m
2026-05-22 SAS55C OSL → ARN May 22, 14:55 UTCMay 22, 15:30 UTC35m
2026-05-22 SAS78K DUS → OSL May 22, 12:05 UTCMay 22, 13:35 UTC1h 30m
2026-05-22 SAS816 OSL → DUS May 22, 09:25 UTCMay 22, 10:55 UTC1h 30m
2026-05-22 SAS44Z TOS → OSL May 22, 06:40 UTCMay 22, 08:10 UTC1h 30m
2026-05-21 SAS4434 OSL → TOS May 21, 17:25 UTCMay 21, 18:45 UTC1h 20m
2026-05-21 SAS78K DUS → OSL May 21, 12:05 UTCMay 21, 13:40 UTC1h 35m
2026-05-21 SAS816 OSL → DUS May 21, 09:40 UTCMay 21, 11:05 UTC1h 25m
2026-05-21 SAS58G TRD → OSL May 21, 07:20 UTCMay 21, 08:05 UTC45m
2026-05-21 SAS332 OSL → TRD May 21, 06:00 UTCMay 21, 06:35 UTC35m
2026-05-21 SAS81A TRD → OSL May 21, 04:20 UTCMay 21, 04:55 UTC35m
2026-05-20 SAS380 OSL → TRD May 20, 18:55 UTCMay 20, 19:30 UTC35m
2026-05-20 SAS64D BGO → OSL May 20, 15:40 UTCMay 20, 16:15 UTC35m
2026-05-20 SAS271 OSL → BGO May 20, 14:20 UTCMay 20, 15:00 UTC40m
2026-05-20 SAS1466 CPH → OSL May 20, 12:20 UTCMay 20, 13:10 UTC50m
2026-05-20 SAS1457 OSL → CPH May 20, 10:20 UTCMay 20, 11:10 UTC50m

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

Mode-S 4ACB59 frequently asked

What is Mode-S code 4ACB59?
4ACB59 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RZY.
Where is Mode-S 4ACB59 registered?
Mode-S code 4ACB59 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACB59 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACB59, octal 22545531, decimal 4,901,721.
What flights does 4ACB59 operate?
Mode-S 4ACB59 has broadcast 20 distinct callsigns, including SAS4787, SAS4788, SAS73B, SAS69L, SAS58G.