Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4ACB03

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-RXC · BOEING 737-800

Hex
4ACB03
Octal
22545403
Decimal
4,901,635
Country
SE
Tail
SE-RXC
Type
B738
No current signal · last broadcast Jul 26, 22:20 UTC
Flights observed
615
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 22:20 UTC

Last known position

Most recent position reported by Mode-S 4ACB03.

Country allocation

The ICAO 24-bit address 4ACB03 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
NSZ2031 - 19 2026-06-16
NSZ2030 - 19 2026-06-17
NSZ2004 - 14 2026-06-16
NSZ2047 Norwegian Air Sweden AOC 13 2026-06-16
NSZ2046 - 13 2026-06-16
NSZ2063 Norwegian Air Sweden AOC 11 2026-06-11
NSZ2062 Norwegian Air Sweden AOC 11 2026-06-11
NSZ2003 Norwegian Air Sweden AOC 11 2026-06-11
NSZ2002 Norwegian Air Sweden AOC 11 2026-06-11
NSZ4354 Norwegian Air Sweden AOC 10 2026-07-26
NSZ2005 - 10 2026-06-16
NSZ4353 Norwegian Air Sweden AOC 9 2026-07-26
NSZ3YT Norwegian Air Sweden AOC 9 2026-07-23
NSZ2MP Norwegian Air Sweden AOC 9 2026-07-23
NSZ2011 Norwegian Air Sweden AOC 9 2026-06-10
NSZ2010 Norwegian Air Sweden AOC 9 2026-06-10
NSZ5NE Norwegian Air Sweden AOC 8 2026-07-26
NSZ56J Norwegian Air Sweden AOC 8 2026-07-26
NSZ2067 Norwegian Air Sweden AOC 8 2026-06-11
NSZ2066 Norwegian Air Sweden AOC 8 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NSZ4354 AMS → ARN Jul 26, 20:40 UTCJul 26, 22:15 UTC1h 35m
2026-07-26 NSZ4353 ARN → AMS Jul 26, 17:50 UTCJul 26, 19:25 UTC1h 35m
2026-07-26 NSZ4556 VNO → ARN Jul 26, 15:40 UTCJul 26, 16:50 UTC1h 10m
2026-07-26 NSZ4555 ARN → VNO Jul 26, 13:45 UTCJul 26, 14:50 UTC1h 5m
2026-07-26 NSZ56J FCO → ARN Jul 26, 10:10 UTCJul 26, 12:45 UTC2h 35m
2026-07-26 NSZ5NE ARN → FCO Jul 26, 05:20 UTCJul 26, 08:10 UTC2h 51m
2026-07-25 NSZ49Y ARN → AYT Jul 25, 19:10 UTCJul 25, 22:40 UTC3h 30m
2026-07-25 NSZ4370 PSA → ARN Jul 25, 15:50 UTCJul 25, 18:15 UTC2h 25m
2026-07-25 NSZ4369 ARN → PSA Jul 25, 11:55 UTCJul 25, 14:35 UTC2h 40m
2026-07-25 NSZ4BD DBV → ARN Jul 25, 08:10 UTCJul 25, 10:50 UTC2h 40m
2026-07-25 NSZ4331 ARN → DBV Jul 25, 04:30 UTCJul 25, 06:40 UTC2h 10m
2026-07-24 NSZ4406 SKG → ARN Jul 24, 21:30 UTCJul 25, 00:55 UTC3h 25m
2026-07-24 NSZ4405 ARN → SKG Jul 24, 17:45 UTCJul 24, 20:25 UTC2h 40m
2026-07-24 NSZ44L LLA → ARN Jul 24, 15:40 UTCJul 24, 16:40 UTC1h 0m
2026-07-24 NSZ43E ARN → LLA Jul 24, 13:50 UTCJul 24, 14:45 UTC55m
2026-07-24 NSZ6YF SPU → ARN Jul 24, 10:20 UTCJul 24, 12:50 UTC2h 30m
2026-07-24 NSZ5PK ARN → SPU Jul 24, 06:45 UTCJul 24, 08:40 UTC1h 55m
2026-07-23 NSZ4508 BER → ARN Jul 23, 19:25 UTCJul 23, 20:55 UTC1h 30m
2026-07-23 NSZ4507 ARN → BER Jul 23, 17:20 UTCJul 23, 18:30 UTC1h 10m
2026-07-23 NSZ72N PRG → ARN Jul 23, 14:35 UTCJul 23, 16:10 UTC1h 35m
2026-07-23 NSZ1VD ARN → PRG Jul 23, 12:20 UTCJul 23, 13:45 UTC1h 25m
2026-07-23 NSZ2MP NCE → ARN Jul 23, 08:50 UTCJul 23, 11:25 UTC2h 35m
2026-07-23 NSZ3YT ARN → NCE Jul 23, 04:55 UTCJul 23, 07:35 UTC2h 40m
2026-07-22 NSZ4DW DBV → ARN Jul 22, 19:20 UTCJul 22, 22:00 UTC2h 40m
2026-07-22 NSZ3AQ ARN → DBV Jul 22, 16:05 UTCJul 22, 18:30 UTC2h 25m
2026-07-22 NSZ4280 OPO → ARN Jul 22, 11:10 UTCJul 22, 13:40 UTC2h 30m
2026-07-22 NSZ4279 - Jul 22, 05:00 UTCJul 22, 05:25 UTC25m
2026-07-21 NSZ4352 PRN → ARN Jul 21, 21:15 UTCJul 22, 00:00 UTC2h 45m
2026-07-21 NSZ4351 ARN → PRN Jul 21, 17:20 UTCJul 21, 20:00 UTC2h 40m
2026-07-21 NSZ4508 BER → ARN Jul 21, 14:50 UTCJul 21, 16:10 UTC1h 20m
2026-07-21 NSZ4507 ARN → BER Jul 21, 12:40 UTCJul 21, 13:50 UTC1h 10m
2026-07-21 NSZ4362 OLB → ARN Jul 21, 08:50 UTCJul 21, 11:35 UTC2h 45m
2026-07-21 NSZ3AM ARN → OLB Jul 21, 04:40 UTCJul 21, 07:25 UTC2h 45m
2026-07-20 NSZ4316 BSL → ARN Jul 20, 18:25 UTCJul 20, 20:25 UTC2h 0m
2026-07-20 NSZ4315 ARN → BSL Jul 20, 15:25 UTCJul 20, 17:35 UTC2h 10m
2026-07-20 NSZ4514 HAM → ARN Jul 20, 13:15 UTCJul 20, 14:25 UTC1h 10m
2026-07-20 NSZ4513 ARN → HAM Jul 20, 11:00 UTCJul 20, 12:10 UTC1h 10m
2026-07-20 NSZ4378 MXP → ARN Jul 20, 07:45 UTCJul 20, 10:05 UTC2h 20m
2026-07-20 NSZ4377 ARN → MXP Jul 20, 04:20 UTCJul 20, 06:35 UTC2h 15m
2026-07-19 NSZ4354 AMS → ARN Jul 19, 19:55 UTCJul 19, 21:35 UTC1h 40m
2026-07-19 NSZ4353 ARN → AMS Jul 19, 17:05 UTCJul 19, 18:45 UTC1h 40m
2026-07-19 NSZ4556 VNO → ARN Jul 19, 15:00 UTCJul 19, 16:10 UTC1h 10m
2026-07-19 NSZ4555 ARN → VNO Jul 19, 13:00 UTCJul 19, 14:10 UTC1h 10m
2026-07-19 NSZ56J - Jul 19, 09:15 UTCJul 19, 11:50 UTC2h 35m
2026-07-19 NSZ5NE ARN → FCO Jul 19, 05:15 UTCJul 19, 07:55 UTC2h 40m
2026-07-18 NSZ4340 - Jul 18, 20:10 UTCJul 18, 22:30 UTC2h 20m
2026-07-18 NSZ39TP ARN → PUY Jul 18, 16:50 UTCJul 18, 19:05 UTC2h 15m
2026-07-18 NSZ6LA LGW → ARN Jul 18, 13:05 UTCJul 18, 15:00 UTC1h 55m
2026-07-18 NSZ5WU ARN → LGW Jul 18, 09:25 UTCJul 18, 11:45 UTC2h 20m
2026-07-18 NSZ38K - Jul 18, 07:10 UTCJul 18, 08:15 UTC1h 5m

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

Mode-S 4ACB03 frequently asked

What is Mode-S code 4ACB03?
4ACB03 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-RXC.
Where is Mode-S 4ACB03 registered?
Mode-S code 4ACB03 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4ACB03 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4ACB03, octal 22545403, decimal 4,901,635.
What flights does 4ACB03 operate?
Mode-S 4ACB03 has broadcast 20 distinct callsigns, including NSZ2031, NSZ2030, NSZ2004, NSZ2047, NSZ2046.