Apparatus

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sensors Mode-S transponder

4ACA86

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RTF · BOEING 737 MAX 8

Hex
4ACA86
Octal
22545206
Decimal
4,901,510
Country
SE
Tail
SE-RTF
Type
B38M
Broadcasting now · callsign NSZ2910 · 34,000 ft
Flights observed
251
Distinct callsigns
20
Country
SE
Last broadcast
1h ago

Current position

4ACA86 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACA86 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
NSZ4607 Norwegian Air Sweden AOC 6 2026-05-02
NSZ6LA Norwegian Air Sweden AOC 5 2026-04-27
NSZ5WU Norwegian Air Sweden AOC 5 2026-04-27
NSZ46M Norwegian Air Sweden AOC 5 2026-05-20
NSZ45F Norwegian Air Sweden AOC 5 2026-05-20
NSZ3MB Norwegian Air Sweden AOC 5 2026-04-26
NSZ96Y Norwegian Air Sweden AOC 4 2026-04-27
NSZ83AH Norwegian Air Sweden AOC 4 2026-05-24
NSZ5YB Norwegian Air Sweden AOC 4 2026-04-27
NSZ4MF Norwegian Air Sweden AOC 4 2026-04-26
NSZ4AW Norwegian Air Sweden AOC 4 2026-05-24
NSZ44L Norwegian Air Sweden AOC 4 2026-05-20
NSZ43E Norwegian Air Sweden AOC 4 2026-05-20
NSZ3YT Norwegian Air Sweden AOC 4 2026-05-20
NSZ38K Norwegian Air Sweden AOC 4 2026-05-21
NSZ35A Norwegian Air Sweden AOC 4 2026-05-21
NSZ2MP Norwegian Air Sweden AOC 4 2026-05-20
NSZ2ES Norwegian Air Sweden AOC 4 2026-04-16
NSZ2617 Norwegian Air Sweden AOC 4 2026-05-25
NSZ2614 Norwegian Air Sweden AOC 4 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 NSZ2910 HEL → ALC May 30, 12:55 UTCMay 30, 13:30 UTC35m
2026-05-30 NSZ6FV ATH → HEL May 30, 08:25 UTCMay 30, 11:55 UTC3h 30m
2026-05-30 NSZ2962 HEL → ATH May 30, 03:55 UTCMay 30, 07:05 UTC3h 10m
2026-05-29 NSZ26Q BOJ → HEL May 29, 20:40 UTCMay 29, 23:45 UTC3h 5m
2026-05-29 NSZ2856 HEL → BOJ May 29, 17:15 UTCMay 29, 19:45 UTC2h 30m
2026-05-29 NSZ2901 BCN → HEL May 29, 12:35 UTCMay 29, 16:15 UTC3h 40m
2026-05-29 NSZ2900 HEL → BCN May 29, 07:25 UTCMay 29, 11:00 UTC3h 35m
2026-05-29 NSZ23Y ARN → HEL May 29, 05:50 UTCMay 29, 06:25 UTC35m
2026-05-29 NSZ2602 HEL → ARN May 29, 04:05 UTCMay 29, 04:55 UTC50m
2026-05-28 NSZ2895 PMI → HEL May 28, 18:45 UTCMay 28, 22:40 UTC3h 55m
2026-05-28 NSZ24KW HEL → PMI May 28, 13:55 UTCMay 28, 17:25 UTC3h 30m
2026-05-28 NSZ2901 BCN → HEL May 28, 09:05 UTCMay 28, 12:45 UTC3h 40m
2026-05-28 NSZ2900 HEL → BCN May 28, 03:20 UTCMay 28, 06:40 UTC3h 20m
2026-05-27 NSZ2615 ARN → HEL May 27, 14:35 UTCMay 27, 15:20 UTC45m
2026-05-27 NSZ2614 HEL → ARN May 27, 13:00 UTCMay 27, 13:55 UTC55m
2026-05-27 NSZ2831 TIA → HEL May 27, 08:55 UTCMay 27, 11:45 UTC2h 50m
2026-05-27 NSZ2830 HEL → TIA May 27, 04:59 UTCMay 27, 07:30 UTC2h 31m
2026-05-26 NSZ2827 PRN → HEL May 26, 19:34 UTCMay 26, 21:04 UTC1h 30m
2026-05-26 NSZ2826 HEL → PRN May 26, 15:35 UTCMay 26, 18:05 UTC2h 30m
2026-05-26 NSZ2893 PMI → HEL May 26, 10:14 UTCMay 26, 13:54 UTC3h 40m
2026-05-26 NSZ2892 HEL → PMI May 26, 05:00 UTCMay 26, 08:54 UTC3h 55m
2026-05-25 NSZ2617 ARN → HEL May 25, 17:40 UTCMay 25, 18:25 UTC45m
2026-05-25 NSZ2616 HEL → ARN May 25, 16:00 UTCMay 25, 16:45 UTC45m
2026-05-25 NSZ2615 ARN → HEL May 25, 14:30 UTCMay 25, 15:15 UTC45m
2026-05-25 NSZ2614 HEL → ARN May 25, 13:05 UTCMay 25, 13:55 UTC50m
2026-05-25 NSZ2901 BCN → HEL May 25, 08:30 UTCMay 25, 12:20 UTC3h 50m
2026-05-25 NSZ2900 HEL → BCN May 25, 03:25 UTCMay 25, 06:45 UTC3h 20m
2026-05-24 NSZ2913 ALC → HEL May 24, 19:50 UTCMay 24, 21:50 UTC2h 0m
2026-05-24 NSZ9WP HEL → ALC May 24, 14:45 UTCMay 24, 18:40 UTC3h 55m
2026-05-24 NSZ83AH AGP → HEL May 24, 09:15 UTCMay 24, 13:35 UTC4h 20m
2026-05-24 NSZ4AW HEL → AGP May 24, 03:45 UTCMay 24, 08:15 UTC4h 30m
2026-05-23 NSZ2949 MLA → HEL May 23, 17:20 UTCMay 23, 21:10 UTC3h 51m
2026-05-23 NSZ2948 HEL → MLA May 23, 12:20 UTCMay 23, 16:00 UTC3h 40m
2026-05-22 NSZ2863 OTP → HEL May 22, 19:05 UTCMay 22, 21:35 UTC2h 30m
2026-05-22 NSZ2862 HEL → OTP May 22, 15:35 UTCMay 22, 18:00 UTC2h 25m
2026-05-22 NSZ2613 ARN → HEL May 22, 13:50 UTCMay 22, 14:35 UTC45m
2026-05-22 NSZ56J FCO → ARN May 22, 09:45 UTCMay 22, 12:50 UTC3h 5m
2026-05-22 NSZ5NE ARN → FCO May 22, 05:10 UTCMay 22, 07:45 UTC2h 35m
2026-05-21 NSZ8KY FCO → ARN May 21, 18:50 UTCMay 21, 21:45 UTC2h 55m
2026-05-21 NSZ4357 ARN → FCO May 21, 14:35 UTCMay 21, 17:10 UTC2h 35m
2026-05-21 NSZ4556 VNO → ARN May 21, 12:40 UTCMay 21, 13:40 UTC1h 0m
2026-05-21 NSZ4555 ARN → VNO May 21, 10:40 UTCMay 21, 11:50 UTC1h 10m
2026-05-21 NSZ38K LLA → ARN May 21, 08:55 UTCMay 21, 09:50 UTC55m
2026-05-21 NSZ35A ARN → LLA May 21, 07:10 UTCMay 21, 08:05 UTC55m
2026-05-21 NSZ3LW LLA → ARN May 21, 04:50 UTCMay 21, 05:50 UTC1h 0m
2026-05-20 NSZ49H ARN → LLA May 20, 19:35 UTCMay 20, 20:30 UTC55m
2026-05-20 NSZ46M LLA → ARN May 20, 17:40 UTCMay 20, 18:40 UTC1h 0m
2026-05-20 NSZ45F ARN → LLA May 20, 15:50 UTCMay 20, 16:45 UTC55m
2026-05-20 NSZ44L LLA → ARN May 20, 14:00 UTCMay 20, 15:05 UTC1h 5m
2026-05-20 NSZ43E ARN → LLA May 20, 12:15 UTCMay 20, 13:10 UTC55m

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

Mode-S 4ACA86 frequently asked

What is Mode-S code 4ACA86?
4ACA86 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RTF.
Where is Mode-S 4ACA86 registered?
Mode-S code 4ACA86 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA86 broadcasting right now?
Yes. Mode-S 4ACA86 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA86, octal 22545206, decimal 4,901,510.
What flights does 4ACA86 operate?
Mode-S 4ACA86 has broadcast 20 distinct callsigns, including NSZ4607, NSZ6LA, NSZ5WU, NSZ46M, NSZ45F.