Apparatus

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sensors Mode-S transponder

A4E766

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N415HD · RAYTHEON 390 Premier 1 · operated by PREMIER 1 PARTNERS LLC

Hex
A4E766
Octal
51163546
Decimal
10,807,142
Country
US
Tail
N415HD
Type
PRM1
No current signal · last broadcast 21h ago
Flights observed
54
Distinct callsigns
1
Country
US
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S A4E766.

Country allocation

The ICAO 24-bit address A4E766 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
N415HD - 54 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N415HD - Jul 13, 16:35 UTCJul 13, 16:55 UTC20m
2026-07-13 N415HD - Jul 13, 13:40 UTCJul 13, 15:35 UTC1h 55m
2026-07-06 N415HD - Jul 6, 01:40 UTCJul 6, 02:15 UTC35m
2026-07-05 N415HD - Jul 5, 22:35 UTCJul 6, 00:50 UTC2h 15m
2026-07-05 N415HD - Jul 5, 21:25 UTCJul 5, 21:50 UTC25m
2026-07-05 N415HD - Jul 5, 17:55 UTCJul 5, 20:25 UTC2h 30m
2026-07-03 N415HD - Jul 3, 22:20 UTCJul 3, 23:15 UTC55m
2026-07-03 N415HD - Jul 3, 20:05 UTCJul 3, 21:05 UTC1h 0m
2026-07-02 N415HD - Jul 2, 17:20 UTCJul 2, 17:50 UTC30m
2026-07-02 N415HD - Jul 2, 14:10 UTCJul 2, 16:15 UTC2h 5m
2026-07-01 N415HD - Jul 1, 16:20 UTCJul 1, 18:25 UTC2h 5m
2026-07-01 N415HD - Jul 1, 14:30 UTCJul 1, 14:50 UTC20m
2026-06-30 N415HD COS → SCF Jun 30, 19:45 UTCJun 30, 21:20 UTC1h 35m
2026-06-27 N415HD - Jun 27, 00:00 UTCJun 27, 00:25 UTC25m
2026-06-26 N415HD - Jun 26, 21:39 UTCJun 26, 22:34 UTC55m
2026-06-26 N415HD - Jun 26, 17:40 UTCJun 26, 19:00 UTC1h 20m
2026-06-25 N415HD - Jun 25, 22:49 UTCJun 25, 23:49 UTC1h 0m
2026-06-25 N415HD - Jun 25, 20:30 UTCJun 25, 21:29 UTC1h 0m
2026-06-24 N415HD - Jun 24, 21:34 UTCJun 25, 02:19 UTC4h 45m
2026-06-24 N415HD SCF → SCF Jun 24, 15:59 UTCJun 24, 21:00 UTC5h 0m
2026-06-22 N415HD HII → SCF Jun 22, 18:30 UTCJun 22, 19:05 UTC35m
2026-06-22 N415HD - Jun 22, 17:10 UTCJun 22, 17:50 UTC40m
2026-06-22 N415HD - Jun 22, 14:59 UTCJun 22, 16:14 UTC1h 15m
2026-06-21 N415HD - Jun 21, 19:05 UTCJun 21, 20:34 UTC1h 30m
2026-06-19 N415HD - Jun 19, 22:19 UTCJun 19, 23:14 UTC55m
2026-06-19 N415HD HII → SNA Jun 19, 20:55 UTCJun 19, 21:39 UTC45m
2026-06-19 N415HD - Jun 19, 19:39 UTCJun 19, 20:09 UTC30m
2026-06-18 N415HD - Jun 18, 21:00 UTCJun 18, 21:55 UTC55m
2026-06-18 N415HD - Jun 18, 19:20 UTCJun 18, 20:20 UTC1h 0m
2026-06-15 N415HD - Jun 15, 17:50 UTCJun 15, 18:04 UTC15m
2026-06-15 N415HD - Jun 15, 16:04 UTCJun 15, 16:59 UTC55m
2026-06-15 N415HD COS → BJC Jun 15, 14:05 UTCJun 15, 14:30 UTC25m
2026-06-14 N415HD - Jun 14, 22:35 UTCJun 14, 23:50 UTC1h 14m
2026-06-14 N415HD APA → OMA Jun 14, 20:55 UTCJun 14, 22:00 UTC1h 5m
2026-06-14 N415HD COS → APA Jun 14, 19:00 UTCJun 14, 19:25 UTC25m
2026-06-12 N415HD - Jun 12, 18:45 UTCJun 12, 20:05 UTC1h 20m
2026-06-11 N415HD - Jun 11, 19:05 UTCJun 11, 20:30 UTC1h 25m
2026-06-11 N415HD - Jun 11, 16:15 UTCJun 11, 17:45 UTC1h 30m
2026-06-10 N415HD - Jun 10, 17:55 UTCJun 10, 18:35 UTC40m
2026-06-10 N415HD - Jun 10, 16:25 UTCJun 10, 17:00 UTC35m
2026-06-08 N415HD - Jun 8, 02:45 UTCJun 8, 03:25 UTC40m
2026-06-08 N415HD - Jun 8, 01:25 UTCJun 8, 02:05 UTC40m
2026-06-06 N415HD - Jun 6, 00:45 UTCJun 6, 01:05 UTC20m
2026-06-05 N415HD SCF → HSH Jun 5, 22:25 UTCJun 5, 23:10 UTC45m
2026-06-05 N415HD - Jun 5, 17:50 UTCJun 5, 17:55 UTC5m
2026-06-04 N415HD BJC → SCF Jun 4, 20:40 UTCJun 4, 22:05 UTC1h 25m
2026-06-04 N415HD COS → BJC Jun 4, 19:00 UTCJun 4, 19:15 UTC15m
2026-06-03 N415HD - Jun 3, 02:40 UTCJun 3, 04:00 UTC1h 20m
2026-06-03 N415HD - Jun 3, 00:55 UTCJun 3, 02:10 UTC1h 15m
2026-06-03 N415HD COS → APA Jun 3, 00:05 UTCJun 3, 00:20 UTC15m

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 N415HD page for operator, model, and routing details .

Mode-S A4E766 frequently asked

What is Mode-S code A4E766?
A4E766 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N415HD.
Where is Mode-S A4E766 registered?
Mode-S code A4E766 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 A4E766 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4E766, octal 51163546, decimal 10,807,142.
What flights does A4E766 operate?
Mode-S A4E766 has broadcast 1 distinct callsign, including N415HD.