sensors Mode-S transponder

4AB34F

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to SE-LZO · CESSNA 172 Skyhawk

Hex
4AB34F
Octal
22531517
Decimal
4,895,567
Country
SE
Tail
SE-LZO
Type
C172
No current signal · last broadcast 2h ago
Flights observed
55
Distinct callsigns
20
Country
SE
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4AB34F.

Country allocation

The ICAO 24-bit address 4AB34F 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
SELZO - 16 2026-07-14
SCQ7N - 5 2026-07-01
SCQZ14U - 4 2026-04-13
SCQ5G - 4 2026-04-17
SCQ14F - 4 2026-07-10
SCQZ9X - 2 2026-05-08
SCQ5L - 2 2026-04-17
SCQ2R - 2 2026-04-20
SCQZ82B - 1 2026-04-17
SCQZ5N - 1 2026-04-20
SCQ98W - 1 2026-04-17
SCQ8R - 1 2026-07-14
SCQ5M - 1 2026-05-28
SCQ56L - 1 2026-04-17
SCQ4D - 1 2026-04-13
SCQ3V - 1 2026-06-18
SCQ2F - 1 2026-04-20
SCQ2E - 1 2026-06-22
SCQ2A - 1 2026-06-29
SCQ28G - 1 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SCQ8R - Jul 14, 09:25 UTCJul 14, 09:45 UTC20m
2026-07-14 SELZO - Jul 14, 07:40 UTCJul 14, 08:25 UTC45m
2026-07-10 SCQ14F - Jul 10, 10:40 UTCJul 10, 12:10 UTC1h 30m
2026-07-01 SCQ7N - Jul 1, 08:35 UTCJul 1, 09:35 UTC1h 0m
2026-06-30 SCQ14F - Jun 30, 10:20 UTCJun 30, 11:20 UTC1h 0m
2026-06-29 SELZO - Jun 29, 12:00 UTCJun 29, 12:34 UTC35m
2026-06-29 SCQ2A - Jun 29, 07:25 UTCJun 29, 08:19 UTC55m
2026-06-27 SCQ14F - Jun 27, 07:30 UTCJun 27, 08:14 UTC45m
2026-06-25 SELZO - Jun 25, 07:30 UTCJun 25, 08:14 UTC45m
2026-06-23 SCQ1M - Jun 23, 09:24 UTCJun 23, 10:04 UTC40m
2026-06-22 SCQ7N - Jun 22, 09:45 UTCJun 22, 10:05 UTC20m
2026-06-22 SCQ2E - Jun 22, 07:30 UTCJun 22, 07:49 UTC20m
2026-06-18 SCQ3V - Jun 18, 12:50 UTCJun 18, 13:10 UTC20m
2026-06-18 SCQ7N - Jun 18, 11:35 UTCJun 18, 11:45 UTC10m
2026-06-18 SCQ7N LEI → LEI Jun 18, 10:15 UTCJun 18, 10:40 UTC25m
2026-06-18 SCQ7N - Jun 18, 09:00 UTCJun 18, 09:15 UTC15m
2026-06-17 SCQ14F - Jun 17, 08:05 UTCJun 17, 08:45 UTC40m
2026-06-15 SELZO - Jun 15, 13:20 UTCJun 15, 13:34 UTC15m
2026-06-15 SELZO - Jun 15, 10:09 UTCJun 15, 12:19 UTC2h 10m
2026-06-11 SELZO - Jun 11, 12:45 UTCJun 11, 13:20 UTC35m
2026-06-11 SELZO - Jun 11, 10:25 UTCJun 11, 10:50 UTC25m
2026-06-11 SELZO - Jun 11, 07:30 UTCJun 11, 08:15 UTC45m
2026-06-10 SELZO - Jun 10, 12:50 UTCJun 10, 14:30 UTC1h 40m
2026-06-09 SELZO - Jun 9, 08:05 UTCJun 9, 08:55 UTC50m
2026-06-08 SELZO - Jun 8, 12:05 UTCJun 8, 13:05 UTC1h 0m
2026-06-05 SCQ24B - Jun 5, 09:50 UTCJun 5, 10:40 UTC50m
2026-06-05 SCQ1A - Jun 5, 08:00 UTCJun 5, 08:50 UTC50m
2026-06-03 SCQ28G - Jun 3, 08:30 UTCJun 3, 09:20 UTC50m
2026-05-28 SCQ5M - May 28, 07:25 UTCMay 28, 07:35 UTC10m
2026-05-22 SCQ15 - May 22, 11:00 UTCMay 22, 11:55 UTC55m
2026-05-10 SELZO - May 10, 18:09 UTCMay 10, 18:45 UTC35m
2026-05-10 SELZO - May 10, 16:44 UTCMay 10, 17:25 UTC40m
2026-05-10 SELZO - May 10, 12:00 UTCMay 10, 14:59 UTC3h 0m
2026-05-10 SELZO - May 10, 06:40 UTCMay 10, 10:30 UTC3h 50m
2026-05-09 SELZO KRS → PAD May 9, 14:35 UTCMay 9, 18:40 UTC4h 5m
2026-05-08 SCQZ9X - May 8, 17:25 UTCMay 8, 18:45 UTC1h 20m
2026-05-08 SCQZ9X - May 8, 15:30 UTCMay 8, 16:25 UTC55m
2026-04-20 SCQ2F - Apr 20, 13:25 UTCApr 20, 14:25 UTC1h 0m
2026-04-20 SCQ2R - Apr 20, 11:30 UTCApr 20, 12:35 UTC1h 5m
2026-04-20 SCQZ5N - Apr 20, 05:25 UTCApr 20, 07:05 UTC1h 40m
2026-04-17 SCQ5G - Apr 17, 17:25 UTCApr 17, 17:45 UTC20m
2026-04-17 SCQ5G - Apr 17, 16:30 UTCApr 17, 17:00 UTC30m
2026-04-17 SCQ98W - Apr 17, 14:10 UTCApr 17, 14:50 UTC40m
2026-04-17 SCQ2R - Apr 17, 12:15 UTCApr 17, 13:15 UTC1h 0m
2026-04-17 SCQ56L - Apr 17, 10:30 UTCApr 17, 11:15 UTC45m
2026-04-17 SCQZ82B - Apr 17, 08:25 UTCApr 17, 09:15 UTC50m
2026-04-17 SCQ5L - Apr 17, 06:25 UTCApr 17, 07:10 UTC45m
2026-04-13 SCQ5L - Apr 13, 16:40 UTCApr 13, 17:45 UTC1h 5m
2026-04-13 SCQ4D - Apr 13, 13:35 UTCApr 13, 14:25 UTC50m
2026-04-13 SCQ5G - Apr 13, 12:20 UTCApr 13, 12:50 UTC30m

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

Mode-S 4AB34F frequently asked

What is Mode-S code 4AB34F?
4AB34F is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to SE-LZO.
Where is Mode-S 4AB34F registered?
Mode-S code 4AB34F is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AB34F broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AB34F, octal 22531517, decimal 4,895,567.
What flights does 4AB34F operate?
Mode-S 4AB34F has broadcast 20 distinct callsigns, including SELZO, SCQ7N, SCQZ14U, SCQ5G, SCQ14F.