Apparatus

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sensors Mode-S transponder

4AEC63

ICAO 24-bit transponder address · allocated to Sweden

Currently assigned to 35-075 · LEARJET 35

Hex
4AEC63
Octal
22566143
Decimal
4,910,179
Country
SE
Tail
35-075
Type
LJ35
No current signal · last broadcast 12d ago
Flights observed
48
Distinct callsigns
1
Country
SE
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S 4AEC63.

Country allocation

The ICAO 24-bit address 4AEC63 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
BR301 - 48 2026-05-21

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-05-21 BR301 - May 21, 12:10 UTCMay 21, 13:15 UTC1h 5m
2026-05-20 BR301 - May 20, 11:00 UTCMay 20, 13:00 UTC2h 0m
2026-05-20 BR301 - May 20, 07:00 UTCMay 20, 09:00 UTC2h 0m
2026-05-19 BR301 - May 19, 11:00 UTCMay 19, 12:55 UTC1h 55m
2026-05-19 BR301 - May 19, 07:05 UTCMay 19, 09:05 UTC2h 0m
2026-05-19 BR301 - May 19, 05:40 UTCMay 19, 06:10 UTC30m
2026-05-18 BR301 - May 18, 10:45 UTCMay 18, 12:40 UTC1h 55m
2026-05-18 BR301 - May 18, 06:35 UTCMay 18, 08:35 UTC2h 0m
2026-05-17 BR301 - May 17, 10:10 UTCMay 17, 12:15 UTC2h 5m
2026-05-17 BR301 - May 17, 06:40 UTCMay 17, 08:55 UTC2h 15m
2026-05-16 BR301 - May 16, 10:20 UTCMay 16, 12:11 UTC1h 50m
2026-05-16 BR301 - May 16, 06:41 UTCMay 16, 08:55 UTC2h 15m
2026-05-15 BR301 - May 15, 10:45 UTCMay 15, 13:00 UTC2h 15m
2026-05-15 BR301 - May 15, 06:45 UTCMay 15, 09:10 UTC2h 25m
2026-05-14 BR301 - May 14, 12:05 UTCMay 14, 13:25 UTC1h 20m
2026-05-13 BR301 - May 13, 16:10 UTCMay 13, 17:20 UTC1h 10m
2026-05-13 BR301 - May 13, 13:35 UTCMay 13, 14:25 UTC50m
2026-05-13 BR301 - May 13, 11:00 UTCMay 13, 11:20 UTC20m
2026-05-11 BR301 - May 11, 07:05 UTCMay 11, 08:15 UTC1h 10m
2026-05-06 BR301 - May 6, 11:25 UTCMay 6, 11:45 UTC20m
2026-05-06 BR301 - May 6, 09:50 UTCMay 6, 10:15 UTC25m
2026-05-01 BR301 - May 1, 11:45 UTCMay 1, 12:55 UTC1h 10m
2026-05-01 BR301 - May 1, 07:00 UTCMay 1, 08:30 UTC1h 30m
2026-04-30 BR301 - Apr 30, 11:00 UTCApr 30, 12:35 UTC1h 35m
2026-04-30 BR301 - Apr 30, 06:35 UTCApr 30, 08:10 UTC1h 35m
2026-04-29 BR301 - Apr 29, 07:29 UTCApr 29, 08:45 UTC1h 15m
2026-04-28 BR301 - Apr 28, 11:20 UTCApr 28, 11:45 UTC25m
2026-04-27 BR301 - Apr 27, 06:55 UTCApr 27, 08:20 UTC1h 25m
2026-04-24 BR301 - Apr 24, 08:20 UTCApr 24, 09:00 UTC40m
2026-04-23 BR301 - Apr 23, 15:45 UTCApr 23, 16:25 UTC40m
2026-04-23 BR301 - Apr 23, 14:25 UTCApr 23, 14:35 UTC10m
2026-04-23 BR301 - Apr 23, 12:40 UTCApr 23, 13:00 UTC20m
2026-04-23 BR301 - Apr 23, 08:55 UTCApr 23, 11:10 UTC2h 15m
2026-04-22 BR301 - Apr 22, 10:40 UTCApr 22, 12:55 UTC2h 15m
2026-04-22 BR301 - Apr 22, 08:10 UTCApr 22, 09:30 UTC1h 20m
2026-04-21 BR301 - Apr 21, 16:05 UTCApr 21, 18:15 UTC2h 10m
2026-04-21 BR301 - Apr 21, 11:05 UTCApr 21, 13:10 UTC2h 5m
2026-04-17 BR301 - Apr 17, 12:20 UTCApr 17, 12:45 UTC25m
2026-04-17 BR301 - Apr 17, 08:05 UTCApr 17, 08:30 UTC25m
2026-04-16 BR301 - Apr 16, 11:09 UTCApr 16, 11:35 UTC25m
2026-04-16 BR301 - Apr 16, 07:09 UTCApr 16, 08:54 UTC1h 45m
2026-04-15 BR301 - Apr 15, 11:10 UTCApr 15, 12:55 UTC1h 45m
2026-04-15 BR301 - Apr 15, 07:15 UTCApr 15, 08:55 UTC1h 40m
2026-04-14 BR301 - Apr 14, 12:00 UTCApr 14, 12:45 UTC45m
2026-04-14 BR301 - Apr 14, 07:00 UTCApr 14, 07:10 UTC10m
2026-04-13 BR301 - Apr 13, 12:20 UTCApr 13, 12:50 UTC30m
2026-04-13 BR301 - Apr 13, 12:00 UTCApr 13, 12:50 UTC50m
2026-04-13 BR301 - Apr 13, 10:35 UTCApr 13, 12:15 UTC1h 40m

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 35-075 page for operator, model, and routing details .

Mode-S 4AEC63 frequently asked

What is Mode-S code 4AEC63?
4AEC63 is an ICAO 24-bit transponder address. Allocated to Sweden. Assigned to 35-075.
Where is Mode-S 4AEC63 registered?
Mode-S code 4AEC63 is allocated to Sweden (SE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4AEC63 broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4AEC63, octal 22566143, decimal 4,910,179.
What flights does 4AEC63 operate?
Mode-S 4AEC63 has broadcast 1 distinct callsign, including BR301.