Apparatus

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sensors Mode-S transponder

A4EEAC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N417FP · DIAMOND DA-40 Club Star · operated by UTAH STATE UNIVERSITY

Hex
A4EEAC
Octal
51167254
Decimal
10,809,004
Country
US
Tail
N417FP
Type
DA40
No current signal · last broadcast 28d ago
Flights observed
122
Distinct callsigns
1
Country
US
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S A4EEAC.

Country allocation

The ICAO 24-bit address A4EEAC 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
N417FP - 122 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N417FP - Jul 24, 22:00 UTCJul 24, 22:10 UTC10m
2026-07-23 N417FP - Jul 23, 17:45 UTCJul 23, 18:35 UTC50m
2026-07-23 N417FP - Jul 23, 13:40 UTCJul 23, 14:35 UTC55m
2026-07-22 N417FP - Jul 22, 22:25 UTCJul 22, 22:45 UTC20m
2026-07-22 N417FP LGU → LGU Jul 22, 14:45 UTCJul 22, 16:00 UTC1h 15m
2026-07-21 N417FP - Jul 21, 21:45 UTCJul 21, 21:55 UTC10m
2026-07-19 N417FP - Jul 19, 14:15 UTCJul 19, 14:20 UTC5m
2026-07-18 N417FP LGU → LGU Jul 18, 18:15 UTCJul 18, 19:45 UTC1h 30m
2026-07-17 N417FP - Jul 17, 16:15 UTCJul 17, 17:35 UTC1h 20m
2026-07-17 N417FP - Jul 17, 13:55 UTCJul 17, 15:05 UTC1h 10m
2026-07-16 N417FP LGU → LGU Jul 16, 21:25 UTCJul 16, 22:40 UTC1h 15m
2026-07-13 N417FP - Jul 13, 20:15 UTCJul 13, 20:45 UTC30m
2026-07-13 N417FP LGU → MLD Jul 13, 19:00 UTCJul 13, 19:30 UTC30m
2026-07-13 N417FP LGU → LGU Jul 13, 16:55 UTCJul 13, 18:00 UTC1h 5m
2026-07-13 N417FP - Jul 13, 14:35 UTCJul 13, 14:45 UTC10m
2026-07-13 N417FP - Jul 13, 13:30 UTCJul 13, 14:05 UTC35m
2026-07-11 N417FP LGU → LGU Jul 11, 17:20 UTCJul 11, 18:20 UTC1h 0m
2026-07-10 N417FP LGU → LGU Jul 10, 18:50 UTCJul 10, 20:05 UTC1h 15m
2026-07-09 N417FP LGU → LGU Jul 9, 19:15 UTCJul 9, 20:35 UTC1h 20m
2026-07-09 N417FP LGU → LGU Jul 9, 16:40 UTCJul 9, 17:55 UTC1h 15m
2026-07-07 N417FP LGU → LGU Jul 7, 01:45 UTCJul 7, 02:55 UTC1h 10m
2026-07-06 N417FP LGU → LGU Jul 6, 21:25 UTCJul 6, 22:50 UTC1h 25m
2026-07-06 N417FP - Jul 6, 20:05 UTCJul 6, 20:20 UTC15m
2026-07-06 N417FP - Jul 6, 18:50 UTCJul 6, 19:05 UTC15m
2026-07-03 N417FP - Jul 3, 18:45 UTCJul 3, 20:00 UTC1h 15m
2026-07-02 N417FP LGU → LGU Jul 2, 16:45 UTCJul 2, 17:50 UTC1h 5m
2026-07-01 N417FP LGU → LGU Jul 1, 14:40 UTCJul 1, 15:35 UTC55m
2026-07-01 N417FP LGU → LGU Jul 1, 14:15 UTCJul 1, 14:35 UTC20m
2026-07-01 N417FP LGU → LGU Jul 1, 04:05 UTCJul 1, 04:35 UTC30m
2026-06-30 N417FP LGU → LGU Jun 30, 16:30 UTCJun 30, 17:00 UTC30m
2026-06-25 N417FP LGU → LGU Jun 25, 15:24 UTCJun 25, 16:35 UTC1h 10m
2026-06-24 N417FP - Jun 24, 20:20 UTCJun 24, 20:44 UTC25m
2026-06-24 N417FP - Jun 24, 19:34 UTCJun 24, 19:39 UTC5m
2026-06-24 N417FP LGU → LGU Jun 24, 17:25 UTCJun 24, 18:25 UTC1h 0m
2026-06-24 N417FP LGU → LGU Jun 24, 13:24 UTCJun 24, 13:30 UTC5m
2026-06-22 N417FP - Jun 22, 18:15 UTCJun 22, 18:54 UTC40m
2026-06-22 N417FP LGU → LGU Jun 22, 15:45 UTCJun 22, 17:40 UTC1h 55m
2026-06-20 N417FP LGU → LGU Jun 20, 15:29 UTCJun 20, 17:10 UTC1h 40m
2026-06-20 N417FP - Jun 20, 13:09 UTCJun 20, 14:14 UTC1h 5m
2026-06-19 N417FP LGU → LGU Jun 19, 19:34 UTCJun 19, 20:29 UTC55m
2026-06-18 N417FP LGU → LGU Jun 18, 16:35 UTCJun 18, 17:45 UTC1h 10m
2026-06-18 N417FP LGU → LGU Jun 18, 15:30 UTCJun 18, 15:45 UTC15m
2026-06-18 N417FP LGU → LGU Jun 18, 04:25 UTCJun 18, 05:55 UTC1h 30m
2026-06-17 N417FP LGU → LGU Jun 17, 15:25 UTCJun 17, 17:00 UTC1h 35m
2026-06-17 N417FP - Jun 17, 01:05 UTCJun 17, 03:00 UTC1h 55m
2026-06-17 N417FP LGU → LGU Jun 17, 00:50 UTCJun 17, 01:00 UTC10m
2026-06-16 N417FP LGU → LGU Jun 16, 17:45 UTCJun 16, 18:29 UTC45m
2026-06-16 N417FP LGU → LGU Jun 16, 14:20 UTCJun 16, 15:35 UTC1h 15m
2026-06-16 N417FP - Jun 16, 01:25 UTCJun 16, 01:35 UTC10m
2026-06-11 N417FP - Jun 11, 14:35 UTCJun 11, 14:45 UTC10m

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 N417FP page for operator, model, and routing details .

Mode-S A4EEAC frequently asked

What is Mode-S code A4EEAC?
A4EEAC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N417FP.
Where is Mode-S A4EEAC registered?
Mode-S code A4EEAC 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 A4EEAC broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4EEAC, octal 51167254, decimal 10,809,004.
What flights does A4EEAC operate?
Mode-S A4EEAC has broadcast 1 distinct callsign, including N417FP.