sensors Mode-S transponder

4ACA8E

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RTN · BOEING 737 MAX 8

Hex
4ACA8E
Octal
22545216
Decimal
4,901,518
Country
SE
Tail
SE-RTN
Type
B38M
Broadcasting now · callsign NOZ69G · 25,325 ft
Flights observed
237
Distinct callsigns
20
Country
SE
Last broadcast
52m ago

Current position

4ACA8E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACA8E 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 NOZ69G RAK → OSL May 30, 16:25 UTCMay 30, 19:30 UTC3h 5m
2026-05-30 NOZ8UE OSL → RAK May 30, 10:15 UTCMay 30, 14:30 UTC4h 15m
2026-05-30 NOZ345 BOO → OSL May 30, 07:45 UTCMay 30, 08:55 UTC1h 10m
2026-05-30 NOZ4RZ OSL → BOO May 30, 05:50 UTCMay 30, 06:55 UTC1h 5m
2026-05-29 NOZ47Y TRD → TRD May 29, 18:30 UTCMay 29, 19:10 UTC40m
2026-05-29 NOZ8ME OSL → TRD May 29, 17:20 UTCMay 29, 17:55 UTC35m
2026-05-29 NOZ9T TRD → TRD May 29, 15:55 UTCMay 29, 16:35 UTC40m
2026-05-29 NOZ60M OSL → OSL May 29, 14:35 UTCMay 29, 15:15 UTC40m
2026-05-29 NOZ1KD TRD → OSL May 29, 13:05 UTCMay 29, 13:50 UTC45m
2026-05-29 NOZ54Z OSL → OSL May 29, 11:35 UTCMay 29, 12:15 UTC40m
2026-05-29 NOZ6MH TRD → TRD May 29, 10:10 UTCMay 29, 10:50 UTC40m
2026-05-29 NOZ52K OSL → OSL May 29, 08:50 UTCMay 29, 09:30 UTC40m
2026-05-29 NOZ51Q TRD → OSL May 29, 07:25 UTCMay 29, 08:05 UTC40m
2026-05-29 NOZ42U OSL → TRD May 29, 06:15 UTCMay 29, 06:55 UTC40m
2026-05-29 NOZ1YE TRD → TRD May 29, 04:40 UTCMay 29, 05:15 UTC35m
2026-05-28 NOZ1039 KRK → TRD May 28, 19:35 UTCMay 28, 22:00 UTC2h 25m
2026-05-28 NOZ3FC TRD → KRK May 28, 16:50 UTCMay 28, 18:35 UTC1h 45m
2026-05-28 NOZ41S LGW → TRD May 28, 13:40 UTCMay 28, 15:55 UTC2h 15m
2026-05-28 NOZ34G TRD → LGW May 28, 09:45 UTCMay 28, 12:00 UTC2h 15m
2026-05-28 NOZ44A OSL → OSL May 28, 07:20 UTCMay 28, 08:05 UTC45m
2026-05-28 NOZ5DP TRD → TRD May 28, 05:35 UTCMay 28, 06:10 UTC35m
2026-05-27 NOZ3ET OSL → OSL May 27, 18:40 UTCMay 27, 19:30 UTC50m
2026-05-27 NOZ3DB TRD → OSL May 27, 17:05 UTCMay 27, 17:50 UTC45m
2026-05-27 NOZ64N OSL → OSL May 27, 15:35 UTCMay 27, 16:20 UTC45m
2026-05-27 NOZ3J TRD → OSL May 27, 14:10 UTCMay 27, 14:55 UTC45m
2026-05-27 NOZ6DV OSL → OSL May 27, 12:55 UTCMay 27, 13:35 UTC40m
2026-05-27 NOZ2EV VNO → OSL May 27, 09:35 UTCMay 27, 11:20 UTC1h 45m
2026-05-27 NOZ6PU - May 27, 07:15 UTCMay 27, 08:40 UTC1h 25m
2026-05-26 NOZ543 SVG → OSL May 26, 16:15 UTCMay 26, 16:50 UTC35m
2026-05-26 NOZ538 OSL → SVG May 26, 14:24 UTCMay 26, 15:14 UTC50m
2026-05-26 NOZ1935 TIA → OSL May 26, 09:19 UTCMay 26, 12:20 UTC3h 0m
2026-05-26 NOZ1934 OSL → TIA May 26, 05:00 UTCMay 26, 07:34 UTC2h 35m
2026-05-25 NOZ5KH BEG → OSL May 25, 19:15 UTCMay 25, 21:45 UTC2h 30m
2026-05-25 NOZ4RP OSL → BEG May 25, 16:00 UTCMay 25, 18:15 UTC2h 15m
2026-05-25 NOZ347 BOO → OSL May 25, 13:55 UTCMay 25, 15:00 UTC1h 5m
2026-05-25 NOZ342 OSL → BOO May 25, 11:05 UTCMay 25, 12:25 UTC1h 20m
2026-05-25 NOZ1WC VIE → OSL May 25, 08:15 UTCMay 25, 10:15 UTC2h 0m
2026-05-25 NOZ2WA OSL → VIE May 25, 05:05 UTCMay 25, 07:00 UTC1h 55m
2026-05-24 NOZ419 AES → OSL May 24, 19:40 UTCMay 24, 20:15 UTC35m
2026-05-24 NOZ416 OSL → AES May 24, 18:15 UTCMay 24, 18:55 UTC40m
2026-05-24 NOZ1247 BRU → OSL May 24, 15:35 UTCMay 24, 17:10 UTC1h 35m
2026-05-24 NOZ1246 OSL → BRU May 24, 12:40 UTCMay 24, 14:15 UTC1h 35m
2026-05-24 NOZ1871 FCO → OSL May 24, 08:50 UTCMay 24, 11:35 UTC2h 45m
2026-05-24 NOZ1870 OSL → FCO May 24, 04:50 UTCMay 24, 07:25 UTC2h 35m
2026-05-23 NOZ5EL GZP → OSL May 23, 20:10 UTCMay 24, 00:35 UTC4h 25m
2026-05-23 NOZ1264 OSL → GZP May 23, 14:55 UTCMay 23, 19:10 UTC4h 16m
2026-05-23 NOZ81R AGP → OSL May 23, 10:05 UTCMay 23, 13:45 UTC3h 40m
2026-05-23 NOZ8AG OSL → AGP May 23, 05:10 UTCMay 23, 09:05 UTC3h 55m
2026-05-22 NOZ1553 BUD → OSL May 22, 20:10 UTCMay 22, 22:25 UTC2h 15m
2026-05-22 NOZ1552 OSL → BUD May 22, 17:35 UTCMay 22, 19:20 UTC1h 45m

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

Mode-S 4ACA8E frequently asked

What is Mode-S code 4ACA8E?
4ACA8E is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RTN.
Where is Mode-S 4ACA8E registered?
Mode-S code 4ACA8E is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA8E broadcasting right now?
Yes. Mode-S 4ACA8E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA8E, octal 22545216, decimal 4,901,518.
What flights does 4ACA8E operate?
Mode-S 4ACA8E has broadcast 20 distinct callsigns, including NSZ6BG, NOZ9CQ, NOZ91H, NSZ5714, NSZ5708.