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sensors Mode-S transponder

4AB5D6

ICAO 24-bit transponder address · allocated to Sweden

Hex
4AB5D6
Octal
22532726
Decimal
4,896,214
Country
SE
No current signal · last broadcast 7h ago
Flights observed
97
Distinct callsigns
1
Country
SE
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4AB5D6.

Country allocation

The ICAO 24-bit address 4AB5D6 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 1 distinct

Callsign Airline Flights Last seen
SEMNV - 97 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SEMNV - Jul 25, 09:40 UTCJul 25, 12:30 UTC2h 50m
2026-07-24 SEMNV - Jul 24, 08:40 UTCJul 24, 09:00 UTC20m
2026-07-24 SEMNV - Jul 24, 07:25 UTCJul 24, 07:50 UTC25m
2026-07-23 SEMNV - Jul 23, 17:30 UTCJul 23, 20:35 UTC3h 5m
2026-07-23 SEMNV - Jul 23, 16:10 UTCJul 23, 16:35 UTC25m
2026-07-23 SEMNV - Jul 23, 14:30 UTCJul 23, 15:00 UTC30m
2026-07-21 SEMNV - Jul 21, 19:55 UTCJul 21, 20:10 UTC15m
2026-07-21 SEMNV - Jul 21, 11:15 UTCJul 21, 11:45 UTC30m
2026-07-21 SEMNV - Jul 21, 09:25 UTCJul 21, 10:05 UTC40m
2026-07-21 SEMNV - Jul 21, 08:05 UTCJul 21, 08:50 UTC45m
2026-07-21 SEMNV - Jul 21, 06:50 UTCJul 21, 07:10 UTC20m
2026-07-21 SEMNV - Jul 21, 05:50 UTCJul 21, 06:10 UTC20m
2026-07-17 SEMNV - Jul 17, 17:40 UTCJul 17, 18:05 UTC25m
2026-07-17 SEMNV - Jul 17, 16:24 UTCJul 17, 17:09 UTC45m
2026-07-17 SEMNV - Jul 17, 13:00 UTCJul 17, 14:39 UTC1h 40m
2026-07-17 SEMNV - Jul 17, 11:30 UTCJul 17, 11:55 UTC25m
2026-07-16 SEMNV - Jul 16, 15:25 UTCJul 16, 15:40 UTC15m
2026-07-16 SEMNV - Jul 16, 13:45 UTCJul 16, 14:05 UTC20m
2026-07-15 SEMNV - Jul 15, 14:05 UTCJul 15, 14:30 UTC25m
2026-07-15 SEMNV - Jul 15, 09:00 UTCJul 15, 10:05 UTC1h 5m
2026-07-14 SEMNV - Jul 14, 14:00 UTCJul 14, 14:35 UTC35m
2026-07-14 SEMNV - Jul 14, 10:50 UTCJul 14, 12:20 UTC1h 30m
2026-07-14 SEMNV - Jul 14, 08:15 UTCJul 14, 08:55 UTC40m
2026-07-13 SEMNV - Jul 13, 19:15 UTCJul 13, 19:40 UTC25m
2026-07-13 SEMNV - Jul 13, 14:05 UTCJul 13, 14:40 UTC35m
2026-07-13 SEMNV - Jul 13, 11:55 UTCJul 13, 12:05 UTC10m
2026-07-13 SEMNV - Jul 13, 09:30 UTCJul 13, 09:40 UTC10m
2026-07-12 SEMNV - Jul 12, 14:25 UTCJul 12, 14:55 UTC30m
2026-07-12 SEMNV - Jul 12, 12:20 UTCJul 12, 12:40 UTC20m
2026-07-12 SEMNV - Jul 12, 10:55 UTCJul 12, 11:20 UTC25m
2026-07-11 SEMNV - Jul 11, 13:45 UTCJul 11, 13:55 UTC10m
2026-07-11 SEMNV - Jul 11, 12:05 UTCJul 11, 12:20 UTC15m
2026-07-11 SEMNV - Jul 11, 08:05 UTCJul 11, 08:20 UTC15m
2026-07-10 SEMNV - Jul 10, 13:05 UTCJul 10, 14:20 UTC1h 15m
2026-07-10 SEMNV - Jul 10, 07:45 UTCJul 10, 08:15 UTC30m
2026-07-09 SEMNV - Jul 9, 15:45 UTCJul 9, 16:10 UTC25m
2026-07-09 SEMNV - Jul 9, 08:50 UTCJul 9, 09:25 UTC35m
2026-06-30 SEMNV - Jun 30, 12:45 UTCJun 30, 15:15 UTC2h 30m
2026-06-23 SEMNV - Jun 23, 12:55 UTCJun 23, 13:09 UTC15m
2026-06-23 SEMNV - Jun 23, 11:45 UTCJun 23, 12:15 UTC30m
2026-06-17 SEMNV - Jun 17, 17:55 UTCJun 17, 18:45 UTC50m
2026-06-17 SEMNV - Jun 17, 15:00 UTCJun 17, 16:00 UTC1h 0m
2026-06-17 SEMNV - Jun 17, 10:40 UTCJun 17, 11:40 UTC1h 0m
2026-06-14 SEMNV - Jun 14, 15:20 UTCJun 14, 17:05 UTC1h 45m
2026-06-13 SEMNV - Jun 13, 13:20 UTCJun 13, 13:40 UTC20m
2026-06-13 SEMNV - Jun 13, 12:15 UTCJun 13, 12:25 UTC10m
2026-06-13 SEMNV - Jun 13, 06:30 UTCJun 13, 06:50 UTC20m
2026-06-12 SEMNV - Jun 12, 10:00 UTCJun 12, 11:30 UTC1h 30m
2026-06-08 SEMNV - Jun 8, 13:35 UTCJun 8, 13:50 UTC15m
2026-06-07 SEMNV - Jun 7, 15:00 UTCJun 7, 18:00 UTC3h 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.

Mode-S 4AB5D6 frequently asked

What is Mode-S code 4AB5D6?
4AB5D6 is an ICAO 24-bit transponder address. Allocated to Sweden.
Where is Mode-S 4AB5D6 registered?
Mode-S code 4AB5D6 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AB5D6 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AB5D6, octal 22532726, decimal 4,896,214.
What flights does 4AB5D6 operate?
Mode-S 4AB5D6 has broadcast 1 distinct callsign, including SEMNV.