Apparatus

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sensors Mode-S transponder

4AB346

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-LZF · CESSNA 172 Skyhawk

Hex
4AB346
Octal
22531506
Decimal
4,895,558
Country
SE
Tail
SE-LZF
Type
C172
No current signal · last broadcast Jul 26, 16:00 UTC
Flights observed
261
Distinct callsigns
20
Country
SE
Last broadcast
Jul 26, 16:00 UTC

Last known position

Most recent position reported by Mode-S 4AB346.

Country allocation

The ICAO 24-bit address 4AB346 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
SCQZ7J - 9 2026-05-15
SCQ06 - 9 2026-07-05
SCQZ9W - 8 2026-05-05
SCQZ9V - 8 2026-07-16
SCQZ5R - 8 2026-04-16
SCQ21D - 7 2026-07-15
SCQ9V - 6 2026-06-15
SCQ3Q - 6 2026-06-11
SCQZ9Q - 5 2026-05-20
SCQ9R - 5 2026-06-17
SCQ4B - 5 2026-06-15
SCQ41G - 5 2026-06-10
SCQZ4F - 4 2026-05-09
SCQZ35H - 4 2026-05-10
SCQZ34L - 4 2026-05-07
SCQ9Y - 4 2026-06-28
SCQ9B - 4 2026-07-12
SCQ8W - 4 2026-06-07
SCQ8U - 4 2026-07-12
SCQ7L - 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SCQ9W - Jul 26, 12:55 UTCJul 26, 16:00 UTC3h 5m
2026-07-25 SCQZ8X - Jul 25, 07:15 UTCJul 25, 08:55 UTC1h 40m
2026-07-24 SCQZ8X - Jul 24, 13:55 UTCJul 24, 15:15 UTC1h 20m
2026-07-24 SCQZ92P - Jul 24, 09:15 UTCJul 24, 11:40 UTC2h 25m
2026-07-24 SCQZ92P - Jul 24, 08:20 UTCJul 24, 08:30 UTC10m
2026-07-24 SCQZ52Q - Jul 24, 05:20 UTCJul 24, 06:55 UTC1h 35m
2026-07-23 SCQZ9D - Jul 23, 18:45 UTCJul 23, 19:20 UTC35m
2026-07-23 SCQZ9D - Jul 23, 17:20 UTCJul 23, 18:15 UTC55m
2026-07-23 SCQZ9D - Jul 23, 15:25 UTCJul 23, 16:35 UTC1h 10m
2026-07-23 SCQZ6H - Jul 23, 13:30 UTCJul 23, 14:35 UTC1h 5m
2026-07-23 SCQZ6H - Jul 23, 11:45 UTCJul 23, 13:25 UTC1h 40m
2026-07-23 SCQZ2F - Jul 23, 08:15 UTCJul 23, 09:55 UTC1h 40m
2026-07-23 SCQZ4D - Jul 23, 05:35 UTCJul 23, 07:10 UTC1h 35m
2026-07-22 SQCZ82B - Jul 22, 16:40 UTCJul 22, 17:40 UTC1h 0m
2026-07-22 SQCZ82B - Jul 22, 14:35 UTCJul 22, 15:25 UTC50m
2026-07-22 SQC91E - Jul 22, 12:40 UTCJul 22, 13:00 UTC20m
2026-07-22 SCQZ56L - Jul 22, 11:30 UTCJul 22, 11:45 UTC15m
2026-07-17 SCQZ1J - Jul 17, 16:40 UTCJul 17, 18:00 UTC1h 20m
2026-07-17 SCQ7Y - Jul 17, 12:35 UTCJul 17, 14:04 UTC1h 30m
2026-07-17 SCQ7Y - Jul 17, 10:50 UTCJul 17, 11:50 UTC1h 0m
2026-07-16 SCQZ32E - Jul 16, 13:45 UTCJul 16, 14:05 UTC20m
2026-07-16 SCQZ9V - Jul 16, 09:10 UTCJul 16, 12:34 UTC3h 25m
2026-07-16 SCQZ9R - Jul 16, 06:20 UTCJul 16, 07:35 UTC1h 15m
2026-07-16 SCQZ9R - Jul 16, 04:00 UTCJul 16, 05:20 UTC1h 20m
2026-07-15 SCQ5K VST → VST Jul 15, 13:50 UTCJul 15, 14:05 UTC15m
2026-07-15 SCQ21D VST → VST Jul 15, 12:10 UTCJul 15, 13:00 UTC50m
2026-07-15 SCQZ32E VST → VST Jul 15, 10:05 UTCJul 15, 10:50 UTC45m
2026-07-14 SCQ32E VST → VST Jul 14, 08:15 UTCJul 14, 08:50 UTC35m
2026-07-14 SCQ43V - Jul 14, 06:25 UTCJul 14, 07:05 UTC40m
2026-07-14 SCQ36N - Jul 14, 04:55 UTCJul 14, 05:35 UTC40m
2026-07-13 SCQZ7L - Jul 13, 15:55 UTCJul 13, 17:50 UTC1h 55m
2026-07-13 SCQ21D VST → VST Jul 13, 14:25 UTCJul 13, 15:00 UTC35m
2026-07-13 SCQ32E VST → VST Jul 13, 12:00 UTCJul 13, 12:45 UTC45m
2026-07-13 SCQ5K VST → VST Jul 13, 09:20 UTCJul 13, 09:40 UTC20m
2026-07-13 SCQ1W - Jul 13, 06:50 UTCJul 13, 08:10 UTC1h 20m
2026-07-13 SCQ1R - Jul 13, 05:01 UTCJul 13, 06:10 UTC1h 10m
2026-07-12 SCQ9B - Jul 12, 16:25 UTCJul 12, 17:55 UTC1h 30m
2026-07-12 SCQ8U - Jul 12, 09:20 UTCJul 12, 12:35 UTC3h 15m
2026-07-11 SCQZ9V - Jul 11, 09:10 UTCJul 11, 11:35 UTC2h 25m
2026-07-10 SCQZ7L VST → VST Jul 10, 12:55 UTCJul 10, 13:40 UTC45m
2026-07-10 SCQ2Z - Jul 10, 08:50 UTCJul 10, 10:15 UTC1h 25m
2026-07-10 SCQZ9V - Jul 10, 04:45 UTCJul 10, 07:25 UTC2h 40m
2026-07-09 SCQZ7L - Jul 9, 15:05 UTCJul 9, 16:20 UTC1h 15m
2026-07-09 SCQ71N VST → VST Jul 9, 11:50 UTCJul 9, 12:30 UTC40m
2026-07-09 SCQ21D VST → VST Jul 9, 10:15 UTCJul 9, 10:55 UTC40m
2026-07-09 SCQZ9V - Jul 9, 07:20 UTCJul 9, 09:05 UTC1h 45m
2026-07-09 SCQZ9V - Jul 9, 05:10 UTCJul 9, 06:00 UTC50m
2026-07-08 SCQ1R - Jul 8, 15:40 UTCJul 8, 16:20 UTC40m
2026-07-08 SCQ1W - Jul 8, 14:10 UTCJul 8, 14:50 UTC40m
2026-07-08 SCQ71N - Jul 8, 12:15 UTCJul 8, 13:30 UTC1h 15m

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

Mode-S 4AB346 frequently asked

What is Mode-S code 4AB346?
4AB346 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-LZF.
Where is Mode-S 4AB346 registered?
Mode-S code 4AB346 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AB346 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AB346, octal 22531506, decimal 4,895,558.
What flights does 4AB346 operate?
Mode-S 4AB346 has broadcast 20 distinct callsigns, including SCQZ7J, SCQ06, SCQZ9W, SCQZ9V, SCQZ5R.