sensors Mode-S transponder

4AC9EC

ICAO 24-bit transponder address · allocated to Sweden

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

Hex
4AC9EC
Octal
22544754
Decimal
4,901,356
Country
SE
Tail
SE-ROL
Type
A20N
Broadcasting now · callsign SAS7315 · 13,700 ft
Flights observed
281
Distinct callsigns
20
Country
SE
Last broadcast
5m ago

Current position

4AC9EC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4AC9EC 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 SAS7315 TRD → JTR May 30, 04:10 UTCMay 30, 07:00 UTC2h 50m
2026-05-29 SAS4049 OSL → SVG May 29, 18:05 UTCMay 29, 18:45 UTC40m
2026-05-29 SAS885 ARN → OSL May 29, 16:15 UTCMay 29, 17:00 UTC45m
2026-05-29 SAS55C OSL → ARN May 29, 14:35 UTCMay 29, 15:15 UTC40m
2026-05-29 SAS78K DUS → OSL May 29, 12:10 UTCMay 29, 13:50 UTC1h 40m
2026-05-29 SAS816 OSL → DUS May 29, 09:25 UTCMay 29, 10:55 UTC1h 30m
2026-05-29 SAS69J SVG → OSL May 29, 07:25 UTCMay 29, 08:10 UTC45m
2026-05-28 SAS4051 OSL → SVG May 28, 19:50 UTCMay 28, 20:30 UTC40m
2026-05-28 SAS286 BGO → OSL May 28, 18:00 UTCMay 28, 18:35 UTC35m
2026-05-28 SAS281 OSL → BGO May 28, 16:30 UTCMay 28, 17:10 UTC40m
2026-05-28 SAS4038 SVG → OSL May 28, 14:45 UTCMay 28, 15:25 UTC40m
2026-05-28 SAS24C OSL → SVG May 28, 13:25 UTCMay 28, 14:05 UTC40m
2026-05-28 SAS11M ALC → OSL May 28, 09:00 UTCMay 28, 12:35 UTC3h 35m
2026-05-28 SAS22E FCO → CPH May 28, 04:10 UTCMay 28, 07:20 UTC3h 10m
2026-05-27 SAS1474 CPH → OSL May 27, 21:25 UTCMay 27, 22:20 UTC55m
2026-05-27 SAS1475 OSL → CPH May 27, 19:15 UTCMay 27, 20:05 UTC50m
2026-05-27 SAS1470 CPH → OSL May 27, 17:15 UTCMay 27, 18:10 UTC55m
2026-05-27 SAS1465 OSL → CPH May 27, 15:25 UTCMay 27, 16:15 UTC50m
2026-05-27 SAS4545 ALF → OSL May 27, 12:45 UTCMay 27, 14:25 UTC1h 40m
2026-05-27 SAS4546 OSL → ALF May 27, 10:05 UTCMay 27, 11:40 UTC1h 35m
2026-05-27 SAS44Z TOS → OSL May 27, 06:44 UTCMay 27, 08:20 UTC1h 36m
2026-05-26 SAS4434 OSL → TOS May 26, 19:15 UTCMay 26, 19:25 UTC10m
2026-05-26 SAS4434 OSL → TOS May 26, 16:59 UTCMay 26, 18:19 UTC1h 20m
2026-05-26 SAS32T CPH → OSL May 26, 15:14 UTCMay 26, 16:05 UTC50m
2026-05-26 SAS242F OSL → CPH May 26, 13:19 UTCMay 26, 14:09 UTC50m
2026-05-26 SAS1456 CPH → OSL May 26, 11:20 UTCMay 26, 12:10 UTC50m
2026-05-26 SAS1467 OSL → CPH May 26, 09:09 UTCMay 26, 10:10 UTC1h 0m
2026-05-26 SAS252 BGO → OSL May 26, 07:45 UTCMay 26, 08:19 UTC35m
2026-05-26 SAS251 OSL → BGO May 26, 06:10 UTCMay 26, 06:54 UTC45m
2026-05-26 SAS81A TRD → OSL May 26, 04:35 UTCMay 26, 05:15 UTC40m
2026-05-25 SAS382 OSL → TRD May 25, 19:54 UTCMay 25, 20:34 UTC40m
2026-05-25 SAS73B TRD → OSL May 25, 16:35 UTCMay 25, 17:15 UTC40m
2026-05-25 SAS364 OSL → TRD May 25, 15:10 UTCMay 25, 15:55 UTC45m
2026-05-25 SAS11M ALC → OSL May 25, 10:50 UTCMay 25, 14:10 UTC3h 20m
2026-05-25 SAS22E FCO → CPH May 25, 05:20 UTCMay 25, 08:35 UTC3h 15m
2026-05-24 SAS20W MXP → OSL May 24, 17:15 UTCMay 24, 19:35 UTC2h 20m
2026-05-24 SAS4717 OSL → MXP May 24, 13:30 UTCMay 24, 15:50 UTC2h 20m
2026-05-23 SAS83G TOS → OSL May 23, 18:35 UTCMay 23, 20:00 UTC1h 25m
2026-05-23 SAS7356 CHQ → TOS May 23, 12:35 UTCMay 23, 17:10 UTC4h 35m
2026-05-23 SAS7313 MOL → CHQ May 23, 05:55 UTCMay 23, 10:10 UTC4h 15m
2026-05-22 SAS4124 OSL → BOO May 22, 18:50 UTCMay 22, 20:00 UTC1h 10m
2026-05-22 SAS4117 BOO → OSL May 22, 16:00 UTCMay 22, 17:10 UTC1h 10m
2026-05-22 SAS96D OSL → BOO May 22, 13:55 UTCMay 22, 15:10 UTC1h 15m
2026-05-22 SAS4492 OSL → LYR May 22, 06:10 UTCMay 22, 12:20 UTC6h 10m
2026-05-21 SAS39A BOO → OSL May 21, 17:50 UTCMay 21, 19:00 UTC1h 10m
2026-05-21 SAS4122 OSL → BOO May 21, 15:50 UTCMay 21, 17:00 UTC1h 10m
2026-05-21 SAS371 TRD → OSL May 21, 14:00 UTCMay 21, 14:35 UTC35m
2026-05-21 SAS354 OSL → TRD May 21, 12:35 UTCMay 21, 13:15 UTC40m
2026-05-21 SAS4473 KKN → OSL May 21, 07:00 UTCMay 21, 11:35 UTC4h 35m
2026-05-21 SAS341 TRD → OSL May 21, 05:10 UTCMay 21, 05:55 UTC45m

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

Mode-S 4AC9EC frequently asked

What is Mode-S code 4AC9EC?
4AC9EC is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-ROL.
Where is Mode-S 4AC9EC registered?
Mode-S code 4AC9EC is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AC9EC broadcasting right now?
Yes. Mode-S 4AC9EC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AC9EC, octal 22544754, decimal 4,901,356.
What flights does 4AC9EC operate?
Mode-S 4AC9EC has broadcast 20 distinct callsigns, including SAS44Z, SAS4434, SAS885, SAS83G, SAS4788.