Apparatus

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sensors Mode-S transponder

A456A9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N379QS · EMBRAER EMB-505 Phenom 300 · operated by NETJETS SALES INC, ADAMS AVIATION LLC, HOYT DAVID & HOYT JANYCE, DMC MANAGEMENT LLC, JOHN R MILLER RANCH VENTURES LLC, HILL LYDA

Hex
A456A9
Octal
51053251
Decimal
10,770,089
Country
US
Tail
N379QS
Type
E55P
No current signal · last broadcast 1d ago
Flights observed
107
Distinct callsigns
2
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A456A9.

Country allocation

The ICAO 24-bit address A456A9 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 2 distinct

Callsign Airline Flights Last seen
EJA379 NetJets 105 2026-05-28
N379QS - 2 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 EJA379 PVC → HPN May 28, 23:25 UTCMay 28, 23:35 UTC10m
2026-05-28 EJA379 PVC → HPN May 28, 22:05 UTCMay 28, 23:05 UTC1h 0m
2026-05-28 EJA379 PVC → HPN May 28, 19:10 UTCMay 28, 19:40 UTC30m
2026-05-28 EJA379 PVC → HPN May 28, 17:35 UTCMay 28, 18:00 UTC25m
2026-05-28 EJA379 PVC → HPN May 28, 13:20 UTCMay 28, 14:00 UTC40m
2026-05-27 EJA379 PVC → HPN May 27, 18:55 UTCMay 27, 20:45 UTC1h 50m
2026-05-27 EJA379 PVC → HPN May 27, 16:05 UTCMay 27, 17:35 UTC1h 30m
2026-05-26 EJA379 PVC → HPN May 26, 21:29 UTCMay 26, 21:49 UTC20m
2026-05-26 EJA379 PVC → HPN May 26, 17:25 UTCMay 26, 20:20 UTC2h 55m
2026-05-26 EJA379 PVC → HPN May 26, 14:40 UTCMay 26, 15:05 UTC25m
2026-05-26 EJA379 PVC → HPN May 26, 13:10 UTCMay 26, 13:34 UTC25m
2026-05-26 EJA379 PVC → HPN May 26, 11:20 UTCMay 26, 12:00 UTC40m
2026-05-25 EJA379 PVC → HPN May 25, 19:50 UTCMay 25, 20:40 UTC50m
2026-05-25 EJA379 PVC → HPN May 25, 16:20 UTCMay 25, 18:50 UTC2h 30m
2026-05-25 EJA379 PVC → HPN May 25, 14:50 UTCMay 25, 15:30 UTC40m
2026-05-22 EJA379 PVC → HPN May 22, 20:30 UTCMay 22, 21:15 UTC45m
2026-05-22 EJA379 PVC → HPN May 22, 16:30 UTCMay 22, 17:35 UTC1h 5m
2026-05-22 EJA379 PVC → HPN May 22, 13:05 UTCMay 22, 14:40 UTC1h 35m
2026-05-20 EJA379 PVC → HPN May 20, 12:00 UTCMay 20, 13:10 UTC1h 10m
2026-05-19 EJA379 PVC → HPN May 19, 21:55 UTCMay 19, 22:35 UTC40m
2026-05-19 EJA379 PVC → HPN May 19, 18:10 UTCMay 19, 20:50 UTC2h 40m
2026-05-19 EJA379 PVC → HPN May 19, 15:20 UTCMay 19, 17:00 UTC1h 40m
2026-05-18 EJA379 PVC → HPN May 18, 20:35 UTCMay 18, 21:15 UTC40m
2026-05-18 EJA379 PVC → HPN May 18, 19:00 UTCMay 18, 19:30 UTC30m
2026-05-18 EJA379 PVC → HPN May 18, 15:20 UTCMay 18, 17:40 UTC2h 20m
2026-05-18 EJA379 PVC → HPN May 18, 13:05 UTCMay 18, 14:10 UTC1h 5m
2026-05-17 EJA379 PVC → HPN May 17, 16:45 UTCMay 17, 18:40 UTC1h 55m
2026-05-17 N379QS - May 17, 13:31 UTCMay 17, 15:35 UTC2h 5m
2026-05-17 N379QS - May 17, 11:05 UTCMay 17, 11:25 UTC20m
2026-05-16 EJA379 PVC → HPN May 16, 17:45 UTCMay 16, 19:50 UTC2h 5m
2026-05-16 EJA379 PVC → HPN May 16, 14:51 UTCMay 16, 15:10 UTC20m
2026-05-15 EJA379 PVC → HPN May 15, 18:10 UTCMay 15, 19:00 UTC50m
2026-05-15 EJA379 PVC → HPN May 15, 12:55 UTCMay 15, 14:15 UTC1h 20m
2026-05-13 EJA379 PVC → HPN May 13, 21:05 UTCMay 13, 21:45 UTC40m
2026-05-13 EJA379 PVC → HPN May 13, 19:10 UTCMay 13, 19:30 UTC20m
2026-05-13 EJA379 PVC → HPN May 13, 18:05 UTCMay 13, 18:25 UTC20m
2026-05-13 EJA379 PVC → HPN May 13, 13:35 UTCMay 13, 17:05 UTC3h 30m
2026-05-13 EJA379 PVC → HPN May 13, 11:40 UTCMay 13, 12:20 UTC40m
2026-05-12 EJA379 PVC → HPN May 12, 19:30 UTCMay 12, 20:50 UTC1h 20m
2026-05-12 EJA379 PVC → HPN May 12, 17:30 UTCMay 12, 18:35 UTC1h 5m
2026-05-11 EJA379 PVC → HPN May 11, 20:40 UTCMay 11, 21:25 UTC45m
2026-05-11 EJA379 PVC → HPN May 11, 17:40 UTCMay 11, 19:55 UTC2h 15m
2026-05-11 EJA379 PVC → HPN May 11, 15:30 UTCMay 11, 16:10 UTC40m
2026-05-11 EJA379 PVC → HPN May 11, 00:25 UTCMay 11, 02:25 UTC2h 0m
2026-05-10 EJA379 PVC → HPN May 10, 22:35 UTCMay 10, 22:45 UTC10m
2026-05-10 EJA379 PVC → HPN May 10, 20:09 UTCMay 10, 21:19 UTC1h 10m
2026-05-05 EJA379 PVC → HPN May 5, 20:10 UTCMay 5, 22:15 UTC2h 5m
2026-05-05 EJA379 PVC → HPN May 5, 18:05 UTCMay 5, 19:00 UTC55m
2026-05-05 EJA379 PVC → HPN May 5, 14:30 UTCMay 5, 16:20 UTC1h 50m
2026-05-04 EJA379 PVC → HPN May 4, 21:15 UTCMay 4, 22:00 UTC45m

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 N379QS page for operator, model, and routing details .

Mode-S A456A9 frequently asked

What is Mode-S code A456A9?
A456A9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N379QS.
Where is Mode-S A456A9 registered?
Mode-S code A456A9 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 A456A9 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A456A9, octal 51053251, decimal 10,770,089.
What flights does A456A9 operate?
Mode-S A456A9 has broadcast 2 distinct callsigns, including EJA379, N379QS.