Apparatus

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sensors Mode-S transponder

4ACA95

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RTU · BOEING 737 MAX 8

Hex
4ACA95
Octal
22545225
Decimal
4,901,525
Country
SE
Tail
SE-RTU
Type
B38M
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
521
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 4ACA95.

Country allocation

The ICAO 24-bit address 4ACA95 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

Callsign Airline Flights Last seen
NSZ5074 Norwegian Air Sweden AOC 10 2026-05-30
NSZ9YB Norwegian Air Sweden AOC 6 2026-04-28
NSZ8LP Norwegian Air Sweden AOC 6 2026-04-26
NSZ7VR Norwegian Air Sweden AOC 6 2026-07-25
NSZ6UK Norwegian Air Sweden AOC 6 2026-07-25
NSZ5TP Norwegian Air Sweden AOC 6 2026-06-03
NSZ5BF Norwegian Air Sweden AOC 6 2026-04-26
NSZ4KP Norwegian Air Sweden AOC 6 2026-07-25
NSZ3646 Norwegian Air Sweden AOC 6 2026-07-25
NSZ3510 Norwegian Air Sweden AOC 6 2026-06-03
NSZ80W Norwegian Air Sweden AOC 5 2026-05-28
NSZ54CA Norwegian Air Sweden AOC 5 2026-05-18
NSZ541B Norwegian Air Sweden AOC 5 2026-05-18
NSZ5085 Norwegian Air Sweden AOC 5 2026-05-28
NSZ3503 Norwegian Air Sweden AOC 5 2026-06-03
NSZ3502 Norwegian Air Sweden AOC 5 2026-06-03
NSZ9BP Norwegian Air Sweden AOC 4 2026-04-28
NSZ8TQ Norwegian Air Sweden AOC 4 2026-04-28
NSZ83AH Norwegian Air Sweden AOC 4 2026-06-29
NSZ81E - 4 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NSZ3304 CPH → BER Jul 26, 19:40 UTCJul 26, 20:20 UTC40m
2026-07-26 NSZ3751 BGY → CPH Jul 26, 17:15 UTCJul 26, 18:55 UTC1h 40m
2026-07-26 NSZ3750 CPH → BGY Jul 26, 14:15 UTCJul 26, 16:00 UTC1h 45m
2026-07-26 NSZ3303 BER → CPH Jul 26, 12:35 UTCJul 26, 13:15 UTC40m
2026-07-26 NSZ3302 CPH → BER Jul 26, 10:55 UTCJul 26, 11:35 UTC40m
2026-07-26 NSZ3539 AMS → CPH Jul 26, 09:00 UTCJul 26, 10:00 UTC1h 0m
2026-07-26 NSZ3538 CPH → AMS Jul 26, 06:30 UTCJul 26, 07:35 UTC1h 6m
2026-07-25 NSZ4KP NCE → CPH Jul 25, 20:05 UTCJul 25, 21:55 UTC1h 50m
2026-07-25 NSZ3646 CPH → NCE Jul 25, 16:50 UTCJul 25, 18:50 UTC2h 0m
2026-07-25 NSZ7VR PSA → CPH Jul 25, 13:50 UTCJul 25, 15:30 UTC1h 40m
2026-07-25 NSZ6UK CPH → PSA Jul 25, 10:35 UTCJul 25, 12:35 UTC2h 0m
2026-07-25 NSZ3641 NCE → CPH Jul 25, 07:20 UTCJul 25, 09:20 UTC2h 0m
2026-07-25 NSZ3640 CPH → NCE Jul 25, 04:25 UTCJul 25, 06:25 UTC2h 0m
2026-07-24 NSZ3383 CFU → CPH Jul 24, 19:55 UTCJul 24, 22:35 UTC2h 40m
2026-07-24 NSZ3382 CPH → CFU Jul 24, 16:15 UTCJul 24, 18:10 UTC1h 55m
2026-07-24 NSZ2PC OSL → GOT Jul 24, 14:00 UTCJul 24, 14:50 UTC50m
2026-07-24 NOZ1913 SJJ → OSL Jul 24, 08:45 UTCJul 24, 11:25 UTC2h 40m
2026-07-24 NOZ1912 OSL → SJJ Jul 24, 05:25 UTCJul 24, 07:30 UTC2h 5m
2026-07-23 NSZ6BG OSL → LPA Jul 23, 09:50 UTCJul 23, 21:10 UTC11h 20m
2026-07-23 NSZ8923 ALC → BCN Jul 23, 08:00 UTCJul 23, 08:55 UTC55m
2026-07-22 NSZ3781 BOJ → CPH Jul 22, 21:50 UTCJul 23, 00:20 UTC2h 30m
2026-07-22 NSZ3780 CPH → BOJ Jul 22, 18:40 UTCJul 22, 20:55 UTC2h 15m
2026-07-22 NOZ3LH CDG → TOS Jul 22, 16:55 UTCJul 22, 17:45 UTC50m
2026-07-22 NOZ4TL KRK → OSL Jul 22, 14:20 UTCJul 22, 16:05 UTC1h 45m
2026-07-22 NOZ4BJ OSL → KRK Jul 22, 11:40 UTCJul 22, 13:20 UTC1h 40m
2026-07-22 NOZ2PC BER → ARN Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-21 NSZ3733 FCO → CPH Jul 21, 19:50 UTCJul 21, 21:55 UTC2h 5m
2026-07-21 NSZ3732 - Jul 21, 16:20 UTCJul 21, 18:20 UTC2h 0m
2026-07-21 NSZ3229 OSL → CPH Jul 21, 14:20 UTCJul 21, 15:15 UTC55m
2026-07-21 NSZ3228 CPH → OSL Jul 21, 12:20 UTCJul 21, 13:15 UTC55m
2026-07-21 NSZ3387 PVK → CPH Jul 21, 08:25 UTCJul 21, 11:00 UTC2h 35m
2026-07-21 NSZ3386 CPH → PVK Jul 21, 04:50 UTCJul 21, 07:10 UTC2h 20m
2026-07-20 NSZ3531 MLA → CPH Jul 20, 20:45 UTCJul 20, 23:40 UTC2h 55m
2026-07-20 NSZ3530 CPH → MLA Jul 20, 16:25 UTCJul 20, 19:15 UTC2h 50m
2026-07-20 NSZ3229 OSL → CPH Jul 20, 14:30 UTCJul 20, 15:25 UTC55m
2026-07-20 NOZ539 SVG → OSL Jul 20, 12:40 UTCJul 20, 13:20 UTC40m
2026-07-20 NOZ534 OSL → SVG Jul 20, 11:20 UTCJul 20, 11:55 UTC35m
2026-07-20 NOZ1087 - Jul 20, 08:55 UTCJul 20, 10:05 UTC1h 10m
2026-07-20 NOZ1086 OSL → PLQ Jul 20, 07:05 UTCJul 20, 08:15 UTC1h 10m
2026-07-20 NOZ95W JTR → OSL Jul 20, 01:45 UTCJul 20, 05:10 UTC3h 25m
2026-07-19 NOZ14W OSL → JTR Jul 19, 21:10 UTCJul 20, 00:40 UTC3h 30m
2026-07-19 NOZ3PT BOD → OSL Jul 19, 15:25 UTCJul 19, 18:00 UTC2h 35m
2026-07-19 NOZ52J - Jul 19, 06:15 UTCJul 19, 08:45 UTC2h 30m
2026-07-18 NOZ5PO - Jul 18, 21:25 UTCJul 19, 00:15 UTC2h 50m
2026-07-18 NOZ4GV - Jul 18, 17:20 UTCJul 18, 20:10 UTC2h 50m
2026-07-18 NOZ45W - Jul 18, 13:55 UTCJul 18, 16:25 UTC2h 30m
2026-07-18 NOZ44J OSL → BIO Jul 18, 09:45 UTCJul 18, 12:30 UTC2h 45m
2026-07-18 NOZ807 ARN → OSL Jul 18, 07:45 UTCJul 18, 08:30 UTC45m
2026-07-18 NOZ806 OSL → ARN Jul 18, 06:20 UTCJul 18, 07:00 UTC40m
2026-07-17 NOZ9JL - Jul 17, 21:10 UTCJul 17, 22:35 UTC1h 25m

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

Mode-S 4ACA95 frequently asked

What is Mode-S code 4ACA95?
4ACA95 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RTU.
Where is Mode-S 4ACA95 registered?
Mode-S code 4ACA95 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA95 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA95, octal 22545225, decimal 4,901,525.
What flights does 4ACA95 operate?
Mode-S 4ACA95 has broadcast 20 distinct callsigns, including NSZ5074, NSZ9YB, NSZ8LP, NSZ7VR, NSZ6UK.