Apparatus

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sensors Mode-S transponder

4ACA0D

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RPM · BOEING 737-800

Hex
4ACA0D
Octal
22545015
Decimal
4,901,389
Country
SE
Tail
SE-RPM
Type
B738
Broadcasting now · callsign NOZ3BW · 38,000 ft
Flights observed
283
Distinct callsigns
20
Country
SE
Last broadcast
1h ago

Current position

4ACA0D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4ACA0D 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
NSZ3641 Norwegian Air Sweden AOC 7 2026-05-27
NSZ3640 Norwegian Air Sweden AOC 7 2026-05-27
NSZ5372 Norwegian Air Sweden AOC 6 2026-04-22
NSZ3LZ Norwegian Air Sweden AOC 6 2026-04-22
NSZ3LE Norwegian Air Sweden AOC 6 2026-04-22
NSZ3525 Norwegian Air Sweden AOC 6 2026-05-19
NSZ82F Norwegian Air Sweden AOC 5 2026-05-05
NSZ54CA Norwegian Air Sweden AOC 5 2026-05-23
NSZ541B Norwegian Air Sweden AOC 5 2026-05-23
NSZ3524 Norwegian Air Sweden AOC 5 2026-05-19
NSZ5ML Norwegian Air Sweden AOC 4 2026-04-20
NSZ4KP Norwegian Air Sweden AOC 4 2026-05-15
NSZ3731 Norwegian Air Sweden AOC 4 2026-05-08
NSZ3730 Norwegian Air Sweden AOC 4 2026-05-08
NSZ3646 Norwegian Air Sweden AOC 4 2026-05-15
NSZ3613 Norwegian Air Sweden AOC 4 2026-05-19
NSZ3195 Norwegian Air Sweden AOC 4 2026-05-27
NSZ3194 Norwegian Air Sweden AOC 4 2026-05-27
NSZ3085 Norwegian Air Sweden AOC 4 2026-05-05
NSZ2EM Norwegian Air Sweden AOC 4 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 NOZ3BW AGP → OSL May 30, 17:30 UTCMay 30, 19:15 UTC1h 45m
2026-05-30 NOZ1802 OSL → AGP May 30, 12:40 UTCMay 30, 16:25 UTC3h 45m
2026-05-29 NSZ5706 LPA → OSL May 29, 13:40 UTCMay 29, 18:35 UTC4h 55m
2026-05-29 NSZ6BG OSL → LPA May 29, 06:55 UTCMay 29, 11:40 UTC4h 45m
2026-05-28 NOZ11G LGW → OSL May 28, 20:50 UTCMay 28, 22:40 UTC1h 50m
2026-05-28 NOZ31F OSL → LGW May 28, 17:45 UTCMay 28, 19:35 UTC1h 50m
2026-05-28 NOZ1VE LGW → OSL May 28, 14:55 UTCMay 28, 16:40 UTC1h 45m
2026-05-28 NOZ36C OSL → LGW May 28, 11:20 UTCMay 28, 13:10 UTC1h 50m
2026-05-27 NSZ3234 CPH → OSL May 27, 18:25 UTCMay 27, 19:20 UTC55m
2026-05-27 NSZ3231 OSL → CPH May 27, 16:55 UTCMay 27, 17:40 UTC45m
2026-05-27 NSZ3230 CPH → OSL May 27, 15:15 UTCMay 27, 16:10 UTC55m
2026-05-27 NSZ3641 NCE → CPH May 27, 11:55 UTCMay 27, 13:50 UTC1h 55m
2026-05-27 NSZ3640 CPH → NCE May 27, 08:55 UTCMay 27, 10:55 UTC2h 0m
2026-05-27 NSZ3195 ARN → CPH May 27, 07:00 UTCMay 27, 07:55 UTC55m
2026-05-27 NSZ3194 CPH → ARN May 27, 05:09 UTCMay 27, 06:09 UTC1h 0m
2026-05-26 NSZ3299 SJJ → CPH May 26, 17:30 UTCMay 26, 19:25 UTC1h 55m
2026-05-26 NSZ3298 CPH → SJJ May 26, 14:45 UTCMay 26, 16:24 UTC1h 40m
2026-05-26 NSZ365L BCN → CPH May 26, 11:09 UTCMay 26, 13:40 UTC2h 30m
2026-05-26 NSZ56V CPH → BCN May 26, 07:10 UTCMay 26, 09:45 UTC2h 35m
2026-05-26 NSZ81E AAL → CPH May 26, 05:34 UTCMay 26, 05:59 UTC25m
2026-05-25 NSZ3086 CPH → AAL May 25, 13:15 UTCMay 25, 13:45 UTC30m
2026-05-25 NSZ6EZ VLC → CPH May 25, 09:30 UTCMay 25, 12:20 UTC2h 50m
2026-05-25 NSZ3654 CPH → VLC May 25, 05:35 UTCMay 25, 08:20 UTC2h 45m
2026-05-24 NSZ3521 LGW → CPH May 24, 20:05 UTCMay 24, 21:25 UTC1h 20m
2026-05-24 NSZ3543 - May 24, 17:05 UTCMay 24, 19:00 UTC1h 55m
2026-05-24 NSZ62Q LGW → AAL May 24, 15:05 UTCMay 24, 16:20 UTC1h 15m
2026-05-24 NSZ3516 CPH → LGW May 24, 12:05 UTCMay 24, 13:45 UTC1h 40m
2026-05-24 NSZ7MF BIO → CPH May 24, 08:35 UTCMay 24, 10:55 UTC2h 20m
2026-05-24 NSZ3708 CPH → BIO May 24, 05:15 UTCMay 24, 07:25 UTC2h 10m
2026-05-23 NSZ4WF ATH → CPH May 23, 18:55 UTCMay 23, 22:00 UTC3h 5m
2026-05-23 NSZ3376 CPH → ATH May 23, 15:20 UTCMay 23, 18:05 UTC2h 45m
2026-05-23 NSZ541B AMS → CPH May 23, 13:20 UTCMay 23, 14:20 UTC1h 0m
2026-05-23 NSZ54CA CPH → AMS May 23, 11:10 UTCMay 23, 12:20 UTC1h 10m
2026-05-23 NSZ3641 NCE → CPH May 23, 08:20 UTCMay 23, 10:15 UTC1h 55m
2026-05-23 NSZ3640 CPH → NCE May 23, 05:10 UTCMay 23, 07:10 UTC2h 0m
2026-05-22 NSZ6DK ALC → CPH May 22, 19:50 UTCMay 22, 22:45 UTC2h 55m
2026-05-22 NSZ3662 CPH → ALC May 22, 16:00 UTCMay 22, 18:55 UTC2h 55m
2026-05-22 NSZ3629 MPL → CPH May 22, 12:50 UTCMay 22, 14:55 UTC2h 5m
2026-05-22 NSZ3628 CPH → MPL May 22, 09:10 UTCMay 22, 11:15 UTC2h 5m
2026-05-22 NSZ89C PRG → CPH May 22, 07:15 UTCMay 22, 08:15 UTC1h 0m
2026-05-22 NSZ8ML CPH → PRG May 22, 05:05 UTCMay 22, 06:00 UTC55m
2026-05-21 NSZ73N EDI → CPH May 21, 20:00 UTCMay 21, 21:20 UTC1h 20m
2026-05-21 NSZ3504 CPH → EDI May 21, 17:20 UTCMay 21, 19:05 UTC1h 45m
2026-05-21 NSZ3747 BLQ → CPH May 21, 14:30 UTCMay 21, 16:25 UTC1h 55m
2026-05-21 NSZ3746 CPH → BLQ May 21, 11:40 UTCMay 21, 13:15 UTC1h 35m
2026-05-20 NSZ541B AMS → CPH May 20, 16:55 UTCMay 20, 17:50 UTC55m
2026-05-20 NSZ54CA CPH → AMS May 20, 14:45 UTCMay 20, 15:45 UTC1h 0m
2026-05-20 NSZ365L BCN → CPH May 20, 11:10 UTCMay 20, 13:40 UTC2h 30m
2026-05-20 NSZ56V CPH → BCN May 20, 07:15 UTCMay 20, 09:45 UTC2h 30m
2026-05-20 NSZ81E AAL → CPH May 20, 05:35 UTCMay 20, 06:00 UTC25m

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

Mode-S 4ACA0D frequently asked

What is Mode-S code 4ACA0D?
4ACA0D is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RPM.
Where is Mode-S 4ACA0D registered?
Mode-S code 4ACA0D is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACA0D broadcasting right now?
Yes. Mode-S 4ACA0D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACA0D, octal 22545015, decimal 4,901,389.
What flights does 4ACA0D operate?
Mode-S 4ACA0D has broadcast 20 distinct callsigns, including NSZ3641, NSZ3640, NSZ5372, NSZ3LZ, NSZ3LE.