Apparatus

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sensors Mode-S transponder

A4E291

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N41369 · PIPER PA-28-140/150/160/180 · operated by ASCENT AVIATION INC

Hex
A4E291
Octal
51161221
Decimal
10,805,905
Country
US
Tail
N41369
Type
P28A
No current signal · last broadcast 16h ago
Flights observed
186
Distinct callsigns
1
Country
US
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S A4E291.

Country allocation

The ICAO 24-bit address A4E291 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
N41369 - 186 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N41369 VNY → VNY Jul 13, 22:30 UTCJul 13, 23:50 UTC1h 20m
2026-07-13 N41369 VNY → VNY Jul 13, 20:40 UTCJul 13, 21:30 UTC50m
2026-07-13 N41369 - Jul 13, 19:10 UTCJul 13, 19:55 UTC45m
2026-07-13 N41369 VNY → SBA Jul 13, 18:05 UTCJul 13, 18:55 UTC50m
2026-07-13 N41369 VNY → VNY Jul 13, 01:45 UTCJul 13, 03:15 UTC1h 30m
2026-07-12 N41369 VNY → VNY Jul 12, 20:15 UTCJul 12, 21:00 UTC45m
2026-07-11 N41369 VNY → VNY Jul 11, 23:40 UTCJul 12, 00:30 UTC50m
2026-07-11 N41369 SMX → VNY Jul 11, 21:15 UTCJul 11, 22:45 UTC1h 30m
2026-07-11 N41369 VNY → SMX Jul 11, 20:05 UTCJul 11, 21:10 UTC1h 5m
2026-07-11 N41369 - Jul 11, 02:00 UTCJul 11, 02:25 UTC25m
2026-07-11 N41369 VNY → WHP Jul 11, 01:25 UTCJul 11, 01:55 UTC30m
2026-07-11 N41369 VNY → VNY Jul 11, 00:50 UTCJul 11, 01:20 UTC30m
2026-07-10 N41369 VNY → VNY Jul 10, 23:10 UTCJul 10, 23:50 UTC40m
2026-07-10 N41369 VNY → VNY Jul 10, 22:20 UTCJul 10, 23:00 UTC40m
2026-07-10 N41369 VNY → VNY Jul 10, 00:15 UTCJul 10, 01:50 UTC1h 35m
2026-07-09 N41369 VNY → VNY Jul 9, 20:00 UTCJul 9, 21:35 UTC1h 35m
2026-07-08 N41369 - Jul 8, 19:15 UTCJul 8, 20:00 UTC45m
2026-07-08 N41369 VNY → SBD Jul 8, 18:25 UTCJul 8, 19:10 UTC45m
2026-07-08 N41369 - Jul 8, 02:35 UTCJul 8, 03:55 UTC1h 20m
2026-07-07 N41369 VNY → VNY Jul 7, 23:45 UTCJul 8, 00:35 UTC50m
2026-07-07 N41369 VNY → VNY Jul 7, 17:50 UTCJul 7, 19:30 UTC1h 40m
2026-07-06 N41369 VNY → VNY Jul 6, 22:55 UTCJul 7, 00:40 UTC1h 45m
2026-07-06 N41369 - Jul 6, 20:35 UTCJul 6, 21:20 UTC45m
2026-07-06 N41369 VNY → SBA Jul 6, 19:25 UTCJul 6, 20:15 UTC50m
2026-07-06 N41369 - Jul 6, 17:30 UTCJul 6, 18:40 UTC1h 10m
2026-07-05 N41369 - Jul 5, 19:10 UTCJul 5, 19:55 UTC45m
2026-07-05 N41369 VNY → VNY Jul 5, 18:40 UTCJul 5, 19:00 UTC20m
2026-07-05 N41369 VNY → VNY Jul 5, 02:40 UTCJul 5, 03:20 UTC40m
2026-07-04 N41369 VNY → VNY Jul 4, 18:40 UTCJul 4, 20:00 UTC1h 20m
2026-07-03 N41369 VNY → VNY Jul 3, 20:10 UTCJul 3, 21:40 UTC1h 30m
2026-07-03 N41369 - Jul 3, 17:50 UTCJul 3, 18:35 UTC45m
2026-07-03 N41369 VNY → SBA Jul 3, 16:55 UTCJul 3, 17:40 UTC45m
2026-07-01 N41369 VNY → VNY Jul 1, 23:30 UTCJul 2, 00:40 UTC1h 10m
2026-07-01 N41369 VNY → VNY Jul 1, 19:45 UTCJul 1, 20:50 UTC1h 5m
2026-07-01 N41369 VNY → VNY Jul 1, 17:35 UTCJul 1, 18:35 UTC1h 0m
2026-06-30 N41369 VNY → VNY Jun 30, 22:40 UTCJun 30, 22:50 UTC10m
2026-06-30 N41369 VNY → VNY Jun 30, 21:55 UTCJun 30, 22:35 UTC40m
2026-06-30 N41369 - Jun 30, 19:40 UTCJun 30, 20:20 UTC40m
2026-06-30 N41369 VNY → VNY Jun 30, 17:30 UTCJun 30, 18:35 UTC1h 5m
2026-06-29 N41369 WHP → VNY Jun 29, 18:19 UTCJun 29, 18:49 UTC30m
2026-06-29 N41369 VNY → WHP Jun 29, 17:59 UTCJun 29, 18:10 UTC10m
2026-06-27 N41369 VNY → VNY Jun 27, 21:44 UTCJun 27, 22:55 UTC1h 10m
2026-06-27 N41369 VNY → VNY Jun 27, 16:30 UTCJun 27, 17:04 UTC35m
2026-06-27 N41369 VNY → VNY Jun 27, 00:34 UTCJun 27, 01:39 UTC1h 5m
2026-06-26 N41369 VNY → VNY Jun 26, 18:04 UTCJun 26, 18:39 UTC35m
2026-06-25 N41369 VNY → VNY Jun 25, 19:49 UTCJun 25, 22:10 UTC2h 20m
2026-06-25 N41369 VNY → VNY Jun 25, 17:44 UTCJun 25, 18:34 UTC50m
2026-06-25 N41369 SBA → VNY Jun 25, 01:40 UTCJun 25, 02:25 UTC45m
2026-06-25 N41369 VNY → SBA Jun 25, 00:44 UTCJun 25, 01:24 UTC40m
2026-06-24 N41369 VNY → VNY Jun 24, 22:19 UTCJun 24, 23:00 UTC40m

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 N41369 page for operator, model, and routing details .

Mode-S A4E291 frequently asked

What is Mode-S code A4E291?
A4E291 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N41369.
Where is Mode-S A4E291 registered?
Mode-S code A4E291 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 A4E291 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4E291, octal 51161221, decimal 10,805,905.
What flights does A4E291 operate?
Mode-S A4E291 has broadcast 1 distinct callsign, including N41369.