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sensors Mode-S transponder

A41909

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N363SH · CESSNA 525A Citation CJ2 · operated by SALE REPORTED

Hex
A41909
Octal
51014411
Decimal
10,754,313
Country
US
Tail
N363SH
Type
C25A
No current signal · last broadcast 22d ago
Flights observed
65
Distinct callsigns
1
Country
US
Last broadcast
22d ago

Last known position

Most recent position reported by Mode-S A41909.

Country allocation

The ICAO 24-bit address A41909 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
SLH363 - 65 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SLH363 - Jul 26, 16:05 UTCJul 26, 16:45 UTC40m
2026-07-26 SLH363 - Jul 26, 12:00 UTCJul 26, 15:30 UTC3h 30m
2026-07-23 SLH363 - Jul 23, 01:20 UTCJul 23, 01:50 UTC30m
2026-07-22 SLH363 - Jul 22, 23:55 UTCJul 23, 00:25 UTC30m
2026-07-22 SLH363 - Jul 22, 19:25 UTCJul 22, 19:50 UTC25m
2026-07-22 SLH363 - Jul 22, 16:30 UTCJul 22, 17:00 UTC30m
2026-07-13 SLH363 - Jul 13, 18:40 UTCJul 13, 19:10 UTC30m
2026-07-13 SLH363 - Jul 13, 12:10 UTCJul 13, 12:35 UTC25m
2026-07-09 SLH363 - Jul 9, 19:30 UTCJul 9, 19:55 UTC25m
2026-07-09 SLH363 - Jul 9, 17:40 UTCJul 9, 18:35 UTC55m
2026-07-09 SLH363 LNK → JCI Jul 9, 11:05 UTCJul 9, 13:45 UTC2h 40m
2026-07-08 SLH363 BKX → LNK Jul 8, 20:30 UTCJul 8, 21:40 UTC1h 10m
2026-07-08 SLH363 - Jul 8, 13:45 UTCJul 8, 14:30 UTC45m
2026-07-08 SLH363 - Jul 8, 12:25 UTCJul 8, 12:40 UTC15m
2026-07-07 SLH363 - Jul 7, 21:00 UTCJul 7, 22:15 UTC1h 15m
2026-07-06 SLH363 - Jul 6, 14:55 UTCJul 6, 15:40 UTC45m
2026-07-06 SLH363 - Jul 6, 12:25 UTCJul 6, 12:50 UTC25m
2026-07-02 SLH363 - Jul 2, 06:15 UTCJul 2, 06:35 UTC20m
2026-07-02 SLH363 - Jul 2, 04:20 UTCJul 2, 04:45 UTC25m
2026-07-01 SLH363 - Jul 1, 17:10 UTCJul 1, 20:10 UTC3h 0m
2026-06-30 SLH363 - Jun 30, 23:55 UTCJul 1, 01:05 UTC1h 10m
2026-06-30 SLH363 LNK → DEN Jun 30, 13:25 UTCJun 30, 15:05 UTC1h 40m
2026-06-29 SLH363 - Jun 29, 16:25 UTCJun 29, 17:55 UTC1h 30m
2026-06-29 SLH363 - Jun 29, 14:04 UTCJun 29, 15:09 UTC1h 5m
2026-06-29 SLH363 - Jun 29, 12:55 UTCJun 29, 13:09 UTC15m
2026-06-26 SLH363 - Jun 26, 18:34 UTCJun 26, 20:15 UTC1h 40m
2026-06-26 SLH363 - Jun 26, 16:20 UTCJun 26, 17:25 UTC1h 5m
2026-06-26 SLH363 LNK → DSM Jun 26, 14:09 UTCJun 26, 14:44 UTC35m
2026-06-24 SLH363 - Jun 24, 20:20 UTCJun 24, 21:40 UTC1h 20m
2026-06-24 SLH363 - Jun 24, 18:55 UTCJun 24, 19:20 UTC25m
2026-06-24 SLH363 - Jun 24, 12:14 UTCJun 24, 13:10 UTC55m
2026-06-24 SLH363 - Jun 24, 10:39 UTCJun 24, 11:09 UTC30m
2026-06-18 SLH363 - Jun 18, 22:15 UTCJun 18, 22:35 UTC20m
2026-06-18 SLH363 - Jun 18, 20:40 UTCJun 18, 21:10 UTC30m
2026-06-18 SLH363 - Jun 18, 18:55 UTCJun 18, 19:55 UTC1h 0m
2026-06-18 SLH363 LNK → APA Jun 18, 15:40 UTCJun 18, 17:21 UTC1h 41m
2026-06-18 SLH363 - Jun 18, 13:55 UTCJun 18, 14:25 UTC30m
2026-06-18 SLH363 - Jun 18, 11:20 UTCJun 18, 13:15 UTC1h 55m
2026-06-16 SLH363 - Jun 16, 23:20 UTCJun 16, 23:40 UTC20m
2026-06-16 SLH363 - Jun 16, 20:05 UTCJun 16, 21:55 UTC1h 50m
2026-06-16 SLH363 LNK → MDW Jun 16, 17:45 UTCJun 16, 19:10 UTC1h 25m
2026-06-15 SLH363 - Jun 15, 23:19 UTCJun 16, 01:00 UTC1h 40m
2026-06-15 SLH363 - Jun 15, 20:59 UTCJun 15, 22:35 UTC1h 35m
2026-06-15 SLH363 - Jun 15, 18:20 UTCJun 15, 18:45 UTC25m
2026-06-11 SLH363 - Jun 11, 18:00 UTCJun 11, 18:40 UTC40m
2026-06-11 SLH363 - Jun 11, 12:40 UTCJun 11, 15:40 UTC3h 0m
2026-06-09 SLH363 - Jun 9, 19:30 UTCJun 9, 20:00 UTC30m
2026-06-09 SLH363 - Jun 9, 15:10 UTCJun 9, 17:50 UTC2h 40m
2026-06-09 SLH363 - Jun 9, 13:50 UTCJun 9, 14:30 UTC40m
2026-06-03 SLH363 - Jun 3, 21:20 UTCJun 3, 21:45 UTC25m

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 N363SH page for operator, model, and routing details .

Mode-S A41909 frequently asked

What is Mode-S code A41909?
A41909 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N363SH.
Where is Mode-S A41909 registered?
Mode-S code A41909 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 A41909 broadcasting right now?
No active broadcast right now. Last signal was 22d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A41909, octal 51014411, decimal 10,754,313.
What flights does A41909 operate?
Mode-S A41909 has broadcast 1 distinct callsign, including SLH363.