Apparatus

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sensors Mode-S transponder

A4E6BF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N415AM · DIAMOND DA-40 Club Star · operated by UTAH STATE UNIVERSITY

Hex
A4E6BF
Octal
51163277
Decimal
10,806,975
Country
US
Tail
N415AM
Type
DA40
No current signal · last broadcast 26d ago
Flights observed
242
Distinct callsigns
1
Country
US
Last broadcast
26d ago

Last known position

Most recent position reported by Mode-S A4E6BF.

Country allocation

The ICAO 24-bit address A4E6BF 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
N415AM - 242 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N415AM - Jul 26, 17:10 UTCJul 26, 17:40 UTC30m
2026-07-25 N415AM - Jul 25, 17:15 UTCJul 25, 18:45 UTC1h 30m
2026-07-24 N415AM - Jul 24, 16:45 UTCJul 24, 17:05 UTC20m
2026-07-24 N415AM - Jul 24, 14:40 UTCJul 24, 14:45 UTC5m
2026-07-24 N415AM LGU → LGU Jul 24, 00:30 UTCJul 24, 01:40 UTC1h 10m
2026-07-23 N415AM LGU → LGU Jul 23, 18:50 UTCJul 23, 19:45 UTC55m
2026-07-23 N415AM LGU → LGU Jul 23, 15:45 UTCJul 23, 16:55 UTC1h 10m
2026-07-22 N415AM - Jul 22, 16:20 UTCJul 22, 16:45 UTC25m
2026-07-22 N415AM - Jul 22, 15:15 UTCJul 22, 15:35 UTC20m
2026-07-21 N415AM LGU → LGU Jul 21, 18:40 UTCJul 21, 19:50 UTC1h 10m
2026-07-21 N415AM LGU → LGU Jul 21, 16:40 UTCJul 21, 17:20 UTC40m
2026-07-21 N415AM LGU → LGU Jul 21, 14:15 UTCJul 21, 15:30 UTC1h 15m
2026-07-20 N415AM - Jul 20, 19:10 UTCJul 20, 19:35 UTC25m
2026-07-20 N415AM LGU → LGU Jul 20, 15:20 UTCJul 20, 16:25 UTC1h 5m
2026-07-18 N415AM LGU → LGU Jul 18, 18:10 UTCJul 18, 18:20 UTC10m
2026-07-18 N415AM - Jul 18, 17:15 UTCJul 18, 17:45 UTC30m
2026-07-18 N415AM - Jul 18, 15:20 UTCJul 18, 15:55 UTC35m
2026-07-17 N415AM LGU → LGU Jul 17, 18:25 UTCJul 17, 19:25 UTC1h 0m
2026-07-17 N415AM LGU → LGU Jul 17, 16:00 UTCJul 17, 17:05 UTC1h 5m
2026-07-17 N415AM - Jul 17, 14:55 UTCJul 17, 15:05 UTC10m
2026-07-17 N415AM - Jul 17, 14:15 UTCJul 17, 14:20 UTC5m
2026-07-16 N415AM LGU → LGU Jul 16, 17:49 UTCJul 16, 18:50 UTC1h 0m
2026-07-16 N415AM LGU → LGU Jul 16, 14:15 UTCJul 16, 16:49 UTC2h 35m
2026-07-16 N415AM LGU → LGU Jul 16, 01:00 UTCJul 16, 01:55 UTC55m
2026-07-15 N415AM - Jul 15, 15:40 UTCJul 15, 17:00 UTC1h 20m
2026-07-15 N415AM LGU → LGU Jul 15, 13:55 UTCJul 15, 14:55 UTC1h 0m
2026-07-14 N415AM LGU → LGU Jul 14, 21:10 UTCJul 14, 22:40 UTC1h 30m
2026-07-14 N415AM - Jul 14, 19:45 UTCJul 14, 20:00 UTC15m
2026-07-14 N415AM - Jul 14, 17:20 UTCJul 14, 17:50 UTC30m
2026-07-14 N415AM - Jul 14, 16:10 UTCJul 14, 16:35 UTC25m
2026-07-14 N415AM - Jul 14, 15:00 UTCJul 14, 15:35 UTC35m
2026-07-12 N415AM LGU → LGU Jul 12, 14:40 UTCJul 12, 15:50 UTC1h 10m
2026-07-11 N415AM - Jul 11, 19:00 UTCJul 11, 19:10 UTC10m
2026-07-11 N415AM - Jul 11, 17:25 UTCJul 11, 17:35 UTC10m
2026-07-10 N415AM LGU → LGU Jul 10, 22:15 UTCJul 10, 23:50 UTC1h 35m
2026-07-10 N415AM LGU → LGU Jul 10, 19:50 UTCJul 10, 21:15 UTC1h 25m
2026-07-10 N415AM - Jul 10, 14:45 UTCJul 10, 15:30 UTC45m
2026-07-10 N415AM - Jul 10, 12:55 UTCJul 10, 13:25 UTC30m
2026-07-09 N415AM - Jul 9, 20:55 UTCJul 9, 22:20 UTC1h 25m
2026-07-09 N415AM - Jul 9, 19:40 UTCJul 9, 20:10 UTC30m
2026-07-09 N415AM - Jul 9, 17:50 UTCJul 9, 18:25 UTC35m
2026-07-09 N415AM LGU → LGU Jul 9, 15:55 UTCJul 9, 16:30 UTC35m
2026-07-08 N415AM LGU → LGU Jul 8, 18:20 UTCJul 8, 18:30 UTC10m
2026-07-08 N415AM LGU → LGU Jul 8, 17:55 UTCJul 8, 18:15 UTC20m
2026-07-08 N415AM MLD → LGU Jul 8, 15:45 UTCJul 8, 16:30 UTC45m
2026-07-08 N415AM - Jul 8, 14:05 UTCJul 8, 14:20 UTC15m
2026-07-07 N415AM LGU → LGU Jul 7, 15:45 UTCJul 7, 17:15 UTC1h 30m
2026-07-06 N415AM - Jul 6, 16:15 UTCJul 6, 16:25 UTC10m
2026-07-06 N415AM - Jul 6, 15:15 UTCJul 6, 15:25 UTC10m
2026-07-02 N415AM LGU → LGU Jul 2, 19:40 UTCJul 2, 20:05 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 N415AM page for operator, model, and routing details .

Mode-S A4E6BF frequently asked

What is Mode-S code A4E6BF?
A4E6BF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N415AM.
Where is Mode-S A4E6BF registered?
Mode-S code A4E6BF 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 A4E6BF broadcasting right now?
No active broadcast right now. Last signal was 26d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4E6BF, octal 51163277, decimal 10,806,975.
What flights does A4E6BF operate?
Mode-S A4E6BF has broadcast 1 distinct callsign, including N415AM.