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sensors Mode-S transponder

A54E46

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4409X · PIPER PA-28-140/150/160/180 · operated by PHILIP AGNEW CONSULTING LLC

Hex
A54E46
Octal
51247106
Decimal
10,833,478
Country
US
Tail
N4409X
Type
P28A
No current signal · last broadcast 8h ago
Flights observed
310
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A54E46.

Country allocation

The ICAO 24-bit address A54E46 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
N4409X - 310 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N4409X VNY → VNY Jul 13, 23:20 UTCJul 14, 00:10 UTC50m
2026-07-13 N4409X VNY → VNY Jul 13, 19:00 UTCJul 13, 20:05 UTC1h 5m
2026-07-13 N4409X VNY → VNY Jul 13, 16:25 UTCJul 13, 16:45 UTC20m
2026-07-13 N4409X VNY → VNY Jul 13, 15:30 UTCJul 13, 16:20 UTC50m
2026-07-12 N4409X - Jul 12, 18:50 UTCJul 12, 19:10 UTC20m
2026-07-12 N4409X - Jul 12, 16:10 UTCJul 12, 16:30 UTC20m
2026-07-11 N4409X - Jul 11, 23:35 UTCJul 12, 00:40 UTC1h 5m
2026-07-11 N4409X VNY → VNY Jul 11, 21:35 UTCJul 11, 22:50 UTC1h 15m
2026-07-11 N4409X VNY → VNY Jul 11, 19:00 UTCJul 11, 20:05 UTC1h 5m
2026-07-11 N4409X BFL → VNY Jul 11, 06:40 UTCJul 11, 07:25 UTC45m
2026-07-11 N4409X APC → BFL Jul 11, 03:45 UTCJul 11, 06:20 UTC2h 35m
2026-07-10 N4409X VNY → APC Jul 10, 22:40 UTCJul 11, 01:50 UTC3h 10m
2026-07-10 N4409X VNY → VNY Jul 10, 21:05 UTCJul 10, 21:45 UTC40m
2026-07-10 N4409X VNY → VNY Jul 10, 18:55 UTCJul 10, 19:30 UTC35m
2026-07-10 N4409X VNY → VNY Jul 10, 16:40 UTCJul 10, 17:50 UTC1h 10m
2026-07-10 N4409X VNY → VNY Jul 10, 02:05 UTCJul 10, 02:40 UTC35m
2026-07-09 N4409X - Jul 9, 23:40 UTCJul 10, 00:50 UTC1h 10m
2026-07-09 N4409X - Jul 9, 22:20 UTCJul 9, 23:00 UTC40m
2026-07-09 N4409X VNY → AVX Jul 9, 21:05 UTCJul 9, 22:10 UTC1h 5m
2026-07-09 N4409X - Jul 9, 01:15 UTCJul 9, 01:25 UTC10m
2026-07-09 N4409X - Jul 9, 01:00 UTCJul 9, 01:10 UTC10m
2026-07-09 N4409X VNY → WHP Jul 9, 00:45 UTCJul 9, 00:55 UTC10m
2026-07-08 N4409X VNY → VNY Jul 8, 22:15 UTCJul 8, 23:35 UTC1h 20m
2026-07-08 N4409X VNY → VNY Jul 8, 18:55 UTCJul 8, 20:10 UTC1h 15m
2026-07-08 N4409X - Jul 8, 05:45 UTCJul 8, 05:55 UTC10m
2026-07-08 N4409X VNY → VNY Jul 8, 04:40 UTCJul 8, 05:40 UTC1h 0m
2026-07-08 N4409X VNY → VNY Jul 8, 01:45 UTCJul 8, 02:45 UTC1h 0m
2026-07-07 N4409X VNY → VNY Jul 7, 23:05 UTCJul 7, 23:50 UTC45m
2026-07-07 N4409X VNY → VNY Jul 7, 21:15 UTCJul 7, 21:55 UTC40m
2026-07-07 N4409X VNY → VNY Jul 7, 18:40 UTCJul 7, 19:50 UTC1h 10m
2026-07-07 N4409X VNY → VNY Jul 7, 16:40 UTCJul 7, 17:55 UTC1h 15m
2026-07-07 N4409X BFL → VNY Jul 7, 05:25 UTCJul 7, 06:15 UTC50m
2026-07-07 N4409X - Jul 7, 04:45 UTCJul 7, 05:10 UTC25m
2026-07-07 N4409X - Jul 7, 02:45 UTCJul 7, 03:05 UTC20m
2026-07-07 N4409X - Jul 7, 01:25 UTCJul 7, 01:55 UTC30m
2026-07-07 N4409X VNY → BFL Jul 7, 00:20 UTCJul 7, 01:15 UTC55m
2026-07-06 N4409X BFL → VNY Jul 6, 22:20 UTCJul 6, 23:35 UTC1h 15m
2026-07-06 N4409X - Jul 6, 21:40 UTCJul 6, 22:05 UTC25m
2026-07-06 N4409X - Jul 6, 20:40 UTCJul 6, 21:00 UTC20m
2026-07-05 N4409X VNY → VNY Jul 5, 20:35 UTCJul 5, 21:40 UTC1h 5m
2026-07-05 N4409X - Jul 5, 18:50 UTCJul 5, 19:25 UTC35m
2026-07-05 N4409X VNY → VNY Jul 5, 17:35 UTCJul 5, 18:05 UTC30m
2026-07-05 N4409X VNY → VNY Jul 5, 15:25 UTCJul 5, 15:55 UTC30m
2026-07-05 N4409X VNY → VNY Jul 5, 03:50 UTCJul 5, 05:10 UTC1h 20m
2026-07-04 N4409X VNY → VNY Jul 4, 21:40 UTCJul 4, 23:20 UTC1h 40m
2026-07-03 N4409X VNY → VNY Jul 3, 22:20 UTCJul 3, 23:25 UTC1h 5m
2026-07-03 N4409X VNY → VNY Jul 3, 19:45 UTCJul 3, 20:40 UTC55m
2026-07-02 N4409X - Jul 2, 03:00 UTCJul 2, 04:30 UTC1h 30m
2026-07-02 N4409X - Jul 2, 01:55 UTCJul 2, 02:55 UTC1h 0m
2026-07-01 N4409X VNY → VNY Jul 1, 23:50 UTCJul 2, 00:55 UTC1h 5m

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 N4409X page for operator, model, and routing details .

Mode-S A54E46 frequently asked

What is Mode-S code A54E46?
A54E46 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4409X.
Where is Mode-S A54E46 registered?
Mode-S code A54E46 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 A54E46 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A54E46, octal 51247106, decimal 10,833,478.
What flights does A54E46 operate?
Mode-S A54E46 has broadcast 1 distinct callsign, including N4409X.