Apparatus

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sensors Mode-S transponder

4ACA13

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RPS · BOEING 737-800

Hex
4ACA13
Octal
22545023
Decimal
4,901,395
Country
SE
Tail
SE-RPS
Type
B738
No current signal · last broadcast 29m ago
Flights observed
214
Distinct callsigns
20
Country
SE
Last broadcast
29m ago

Last known position

Most recent position reported by Mode-S 4ACA13.

Country allocation

The ICAO 24-bit address 4ACA13 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
NSZ8GH Norwegian Air Sweden AOC 3 2026-05-16
NSZ6LA Norwegian Air Sweden AOC 3 2026-05-16
NSZ5WU Norwegian Air Sweden AOC 3 2026-05-16
NSZ5HA Norwegian Air Sweden AOC 3 2026-05-30
NSZ51M Norwegian Air Sweden AOC 3 2026-05-21
NSZ4MF Norwegian Air Sweden AOC 3 2026-05-20
NSZ4103 Norwegian Air Sweden AOC 3 2026-05-20
NSZ3MB Norwegian Air Sweden AOC 3 2026-05-20
NSZ3516 Norwegian Air Sweden AOC 3 2026-05-29
NSZ2ES Norwegian Air Sweden AOC 3 2026-05-21
NOZ1105 Norwegian Air Shuttle AOC AS 3 2026-05-01
NOZ1104 Norwegian Air Shuttle AOC AS 3 2026-05-01
NSZ5TP Norwegian Air Sweden AOC 2 2026-05-24
NSZ5B Norwegian Air Sweden AOC 2 2026-05-10
NSZ5352 Norwegian Air Sweden AOC 2 2026-05-31
NSZ5321 Norwegian Air Sweden AOC 2 2026-05-31
NSZ5320 Norwegian Air Sweden AOC 2 2026-05-31
NSZ4402 Norwegian Air Sweden AOC 2 2026-05-09
NSZ4401 Norwegian Air Sweden AOC 2 2026-05-09
NSZ41G Norwegian Air Sweden AOC 2 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 NSZ2WP ALC → HAU Jun 3, 13:55 UTCJun 3, 16:45 UTC2h 50m
2026-06-03 NSZ8WY BGO → ALC Jun 3, 09:30 UTCJun 3, 12:35 UTC3h 5m
2026-06-03 NSZ5PF ALC → BGO Jun 3, 05:10 UTCJun 3, 08:45 UTC3h 35m
2026-06-02 NSZ9LW TRD → ALC Jun 2, 19:00 UTCJun 2, 22:35 UTC3h 35m
2026-06-02 NSZ8BM ALC → TRD Jun 2, 14:15 UTCJun 2, 18:05 UTC3h 50m
2026-06-02 NSZ3LE ARN → ALC Jun 2, 09:10 UTCJun 2, 12:40 UTC3h 30m
2026-06-02 NSZ3LZ ALC → ARN Jun 2, 04:35 UTCJun 2, 08:05 UTC3h 30m
2026-06-01 NSZ1LY OSL → ALC Jun 1, 18:10 UTCJun 1, 21:40 UTC3h 30m
2026-06-01 NSZ5YR ALC → OSL Jun 1, 13:40 UTCJun 1, 17:05 UTC3h 25m
2026-06-01 NSZ6WH BLL → ALC Jun 1, 09:40 UTCJun 1, 12:25 UTC2h 45m
2026-06-01 NSZ5380 ALC → BLL Jun 1, 05:45 UTCJun 1, 08:40 UTC2h 55m
2026-05-31 NSZ9MC ARN → ALC May 31, 19:30 UTCMay 31, 22:50 UTC3h 20m
2026-05-31 NSZ5352 ALC → ARN May 31, 14:40 UTCMay 31, 18:20 UTC3h 40m
2026-05-31 NSZ5321 OSL → ALC May 31, 09:30 UTCMay 31, 12:45 UTC3h 15m
2026-05-31 NSZ5320 ALC → OSL May 31, 08:25 UTCMay 31, 08:35 UTC10m
2026-05-30 NSZ5HA ARN → ALC May 30, 18:00 UTCMay 30, 21:35 UTC3h 35m
2026-05-30 NSZ2CP AGP → ARN May 30, 11:35 UTCMay 30, 15:25 UTC3h 50m
2026-05-30 NSZ21U ARN → AGP May 30, 05:35 UTCMay 30, 09:30 UTC3h 55m
2026-05-29 NSZ3210 CPH → ARN May 29, 18:15 UTCMay 29, 19:05 UTC50m
2026-05-29 NSZ3GC LGW → CPH May 29, 15:55 UTCMay 29, 17:15 UTC1h 20m
2026-05-29 NSZ3516 CPH → LGW May 29, 12:50 UTCMay 29, 14:35 UTC1h 45m
2026-05-29 NSZ3375 ATH → CPH May 29, 08:25 UTCMay 29, 11:30 UTC3h 5m
2026-05-29 NSZ3374 CPH → ATH May 29, 04:55 UTCMay 29, 06:55 UTC2h 0m
2026-05-29 NSZ3374 CPH → ATH May 29, 04:15 UTCMay 29, 04:50 UTC35m
2026-05-26 NSZ3521 LGW → CPH May 26, 19:40 UTCMay 26, 21:00 UTC1h 20m
2026-05-26 NSZ3534 BLL → LGW May 26, 17:15 UTCMay 26, 18:34 UTC1h 20m
2026-05-26 NSZ3535 LGW → BLL May 26, 15:00 UTCMay 26, 16:10 UTC1h 10m
2026-05-26 NSZ3516 CPH → LGW May 26, 12:10 UTCMay 26, 13:54 UTC1h 45m
2026-05-26 NSZ3731 FCO → CPH May 26, 08:50 UTCMay 26, 11:00 UTC2h 10m
2026-05-26 NSZ3730 CPH → FCO May 26, 05:15 UTCMay 26, 07:19 UTC2h 5m
2026-05-25 NSZ9GY CDG → CPH May 25, 19:59 UTCMay 25, 21:24 UTC1h 25m
2026-05-25 NSZ8FI CPH → CDG May 25, 17:15 UTCMay 25, 18:45 UTC1h 30m
2026-05-25 NSZ3303 BER → CPH May 25, 15:30 UTCMay 25, 16:15 UTC45m
2026-05-25 NSZ3302 CPH → BER May 25, 13:50 UTCMay 25, 14:25 UTC35m
2026-05-25 NSZ21FC FAO → CPH May 25, 08:55 UTCMay 25, 12:15 UTC3h 20m
2026-05-25 NSZ2TC CPH → FAO May 25, 04:20 UTCMay 25, 07:45 UTC3h 25m
2026-05-24 NSZ4KP NCE → CPH May 24, 19:45 UTCMay 24, 21:45 UTC2h 0m
2026-05-24 NSZ3646 CPH → NCE May 24, 16:50 UTCMay 24, 18:50 UTC2h 0m
2026-05-24 NSZ3503 EDI → CPH May 24, 14:25 UTCMay 24, 15:45 UTC1h 20m
2026-05-24 NSZ3502 CPH → EDI May 24, 11:55 UTCMay 24, 13:35 UTC1h 40m
2026-05-24 NSZ5TP LGW → CPH May 24, 09:10 UTCMay 24, 10:30 UTC1h 20m
2026-05-24 NSZ3510 CPH → LGW May 24, 06:15 UTCMay 24, 07:55 UTC1h 40m
2026-05-23 NSZ3407 RAK → CPH May 23, 23:25 UTCMay 24, 03:15 UTC3h 50m
2026-05-23 NSZ3406 CPH → RAK May 23, 18:00 UTCMay 23, 21:35 UTC3h 35m
2026-05-23 NSZ3GC LGW → CPH May 23, 15:25 UTCMay 23, 16:50 UTC1h 25m
2026-05-23 NSZ3516 CPH → LGW May 23, 12:10 UTCMay 23, 13:40 UTC1h 30m
2026-05-23 NSZ5TP LGW → CPH May 23, 09:10 UTCMay 23, 10:30 UTC1h 20m
2026-05-23 NSZ3510 CPH → LGW May 23, 06:10 UTCMay 23, 07:50 UTC1h 40m
2026-05-22 NSZ2067 PRG → CPH May 22, 17:45 UTCMay 22, 18:50 UTC1h 5m
2026-05-22 NSZ2066 CPH → PRG May 22, 15:55 UTCMay 22, 16:55 UTC1h 0m

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

Mode-S 4ACA13 frequently asked

What is Mode-S code 4ACA13?
4ACA13 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RPS.
Where is Mode-S 4ACA13 registered?
Mode-S code 4ACA13 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA13 broadcasting right now?
No active broadcast right now. Last signal was 29m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA13, octal 22545023, decimal 4,901,395.
What flights does 4ACA13 operate?
Mode-S 4ACA13 has broadcast 20 distinct callsigns, including NSZ8GH, NSZ6LA, NSZ5WU, NSZ5HA, NSZ51M.