Apparatus

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sensors Mode-S transponder

AAEDF4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N803KS · SCHLEICHER ASK-21 · operated by TEXTRON AVIATION INC

Hex
AAEDF4
Octal
52566764
Decimal
11,202,036
Country
US
Tail
N803KS
Type
AS21
No current signal · last broadcast 18h ago
Flights observed
94
Distinct callsigns
1
Country
US
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S AAEDF4.

Country allocation

The ICAO 24-bit address AAEDF4 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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
KSU03 - 94 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 KSU03 - Jul 13, 19:40 UTCJul 13, 20:15 UTC35m
2026-07-11 KSU03 - Jul 11, 16:10 UTCJul 11, 16:20 UTC10m
2026-07-10 KSU03 - Jul 10, 16:25 UTCJul 10, 16:55 UTC30m
2026-07-08 KSU03 - Jul 8, 14:10 UTCJul 8, 14:40 UTC30m
2026-07-07 KSU03 - Jul 7, 23:55 UTCJul 8, 00:55 UTC1h 0m
2026-07-07 KSU03 - Jul 7, 21:15 UTCJul 7, 22:00 UTC45m
2026-07-06 KSU03 - Jul 6, 18:50 UTCJul 6, 19:15 UTC25m
2026-07-02 KSU03 - Jul 2, 16:05 UTCJul 2, 16:25 UTC20m
2026-06-27 KSU03 - Jun 27, 20:09 UTCJun 27, 20:24 UTC15m
2026-06-25 KSU03 - Jun 25, 00:05 UTCJun 25, 00:55 UTC50m
2026-06-16 KSU03 - Jun 16, 15:45 UTCJun 16, 15:55 UTC10m
2026-06-16 KSU03 - Jun 16, 11:40 UTCJun 16, 12:25 UTC45m
2026-06-15 KSU03 SLN → SLN Jun 15, 22:40 UTCJun 16, 00:10 UTC1h 30m
2026-06-15 KSU03 SLN → SLN Jun 15, 20:30 UTCJun 15, 21:50 UTC1h 20m
2026-06-15 KSU03 SLN → SLN Jun 15, 18:40 UTCJun 15, 19:35 UTC55m
2026-06-15 KSU03 SLN → SLN Jun 15, 16:59 UTCJun 15, 17:59 UTC1h 0m
2026-06-15 KSU03 SLN → SLN Jun 15, 14:05 UTCJun 15, 15:35 UTC1h 30m
2026-06-13 KSU03 SLN → SLN Jun 13, 14:35 UTCJun 13, 15:30 UTC55m
2026-06-13 KSU03 OMA → SLN Jun 13, 02:50 UTCJun 13, 04:50 UTC1h 59m
2026-06-13 KSU03 - Jun 13, 00:30 UTCJun 13, 02:00 UTC1h 30m
2026-06-12 KSU03 - Jun 12, 23:50 UTCJun 13, 00:05 UTC15m
2026-06-12 KSU03 - Jun 12, 21:30 UTCJun 12, 22:05 UTC35m
2026-06-12 KSU03 SLN → SLN Jun 12, 18:40 UTCJun 12, 19:55 UTC1h 15m
2026-06-12 KSU03 SLN → SLN Jun 12, 15:40 UTCJun 12, 17:05 UTC1h 25m
2026-06-12 KSU03 SLN → SLN Jun 12, 13:50 UTCJun 12, 14:55 UTC1h 5m
2026-06-12 KSU03 SLN → SLN Jun 12, 12:20 UTCJun 12, 13:05 UTC45m
2026-06-12 KSU03 - Jun 12, 03:15 UTCJun 12, 04:15 UTC1h 0m
2026-06-12 KSU03 - Jun 12, 00:55 UTCJun 12, 01:50 UTC55m
2026-06-11 KSU03 SLN → SLN Jun 11, 22:50 UTCJun 12, 00:15 UTC1h 25m
2026-06-10 KSU03 SLN → SLN Jun 10, 21:35 UTCJun 10, 22:10 UTC35m
2026-06-09 KSU03 SLN → SLN Jun 9, 17:45 UTCJun 9, 18:20 UTC35m
2026-06-08 KSU03 SLN → SLN Jun 8, 21:30 UTCJun 8, 22:05 UTC35m
2026-06-06 KSU03 SLN → SLN Jun 6, 15:15 UTCJun 6, 15:50 UTC35m
2026-06-05 KSU03 SLN → SLN Jun 5, 22:40 UTCJun 6, 00:15 UTC1h 35m
2026-06-05 KSU03 SLN → SLN Jun 5, 20:25 UTCJun 5, 21:35 UTC1h 10m
2026-06-04 KSU03 - Jun 4, 20:20 UTCJun 4, 21:00 UTC40m
2026-06-03 KSU03 SLN → SLN Jun 3, 15:10 UTCJun 3, 16:25 UTC1h 15m
2026-06-03 KSU03 SLN → SLN Jun 3, 13:20 UTCJun 3, 14:10 UTC50m
2026-06-02 KSU03 SLN → SLN Jun 2, 23:45 UTCJun 3, 01:00 UTC1h 15m
2026-06-02 KSU03 SLN → SLN Jun 2, 21:00 UTCJun 2, 22:05 UTC1h 5m
2026-06-02 KSU03 SLN → SLN Jun 2, 18:35 UTCJun 2, 19:30 UTC55m
2026-06-02 KSU03 SLN → SLN Jun 2, 16:00 UTCJun 2, 16:50 UTC50m
2026-06-02 KSU03 SLN → SLN Jun 2, 13:35 UTCJun 2, 14:05 UTC30m
2026-06-01 KSU03 SLN → SLN Jun 1, 20:15 UTCJun 1, 20:45 UTC30m
2026-06-01 KSU03 SLN → SLN Jun 1, 13:35 UTCJun 1, 14:50 UTC1h 15m
2026-05-30 KSU03 - May 30, 18:55 UTCMay 30, 19:55 UTC1h 0m
2026-05-30 KSU03 - May 30, 15:05 UTCMay 30, 15:50 UTC45m
2026-05-29 KSU03 SLN → SLN May 29, 22:45 UTCMay 30, 00:05 UTC1h 20m
2026-05-13 KSU03 SLN → SLN May 13, 13:45 UTCMay 13, 15:10 UTC1h 25m
2026-05-12 KSU03 - May 12, 21:10 UTCMay 12, 23:55 UTC2h 45m

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 N803KS page for operator, model, and routing details .

Mode-S AAEDF4 frequently asked

What is Mode-S code AAEDF4?
AAEDF4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N803KS.
Where is Mode-S AAEDF4 registered?
Mode-S code AAEDF4 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AAEDF4 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAEDF4, octal 52566764, decimal 11,202,036.
What flights does AAEDF4 operate?
Mode-S AAEDF4 has broadcast 1 distinct callsign, including KSU03.