Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A77147

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N579QS · CESSNA 560XL Citation XLS · operated by NETJETS SALES INC

Hex
A77147
Octal
51670507
Decimal
10,973,511
Country
US
Tail
N579QS
Type
C56X
No current signal · last broadcast 21h ago
Flights observed
161
Distinct callsigns
1
Country
US
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S A77147.

Country allocation

The ICAO 24-bit address A77147 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
EJA579 NetJets 161 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EJA579 ACK → TEB May 29, 12:20 UTCMay 29, 13:10 UTC50m
2026-05-29 EJA579 ACK → TEB May 29, 11:05 UTCMay 29, 11:50 UTC45m
2026-05-28 EJA579 ACK → TEB May 28, 20:45 UTCMay 28, 21:30 UTC45m
2026-05-28 EJA579 ACK → TEB May 28, 17:05 UTCMay 28, 19:50 UTC2h 45m
2026-05-27 EJA579 ACK → TEB May 27, 21:50 UTCMay 28, 17:00 UTC19h 10m
2026-05-27 EJA579 ACK → TEB May 27, 19:50 UTCMay 28, 17:00 UTC21h 10m
2026-05-27 EJA579 ACK → TEB May 27, 16:45 UTCMay 27, 19:10 UTC2h 25m
2026-05-27 EJA579 ACK → TEB May 27, 14:25 UTCMay 27, 15:45 UTC1h 20m
2026-05-26 EJA579 ACK → TEB May 26, 23:45 UTCMay 26, 23:54 UTC10m
2026-05-26 EJA579 ACK → TEB May 26, 15:54 UTCMay 26, 16:15 UTC20m
2026-05-26 EJA579 ACK → TEB May 26, 13:40 UTCMay 26, 14:50 UTC1h 10m
2026-05-26 EJA579 ACK → TEB May 26, 12:20 UTCMay 26, 12:35 UTC15m
2026-05-25 EJA579 ACK → TEB May 25, 22:25 UTCMay 25, 22:40 UTC15m
2026-05-25 EJA579 ACK → TEB May 25, 21:15 UTCMay 25, 21:45 UTC30m
2026-05-25 EJA579 ACK → TEB May 25, 18:05 UTCMay 25, 18:50 UTC45m
2026-05-25 EJA579 ACK → TEB May 25, 15:10 UTCMay 25, 16:55 UTC1h 45m
2026-05-25 EJA579 ACK → TEB May 25, 12:05 UTCMay 25, 13:50 UTC1h 45m
2026-05-24 EJA579 ACK → TEB May 24, 20:50 UTCMay 24, 21:40 UTC50m
2026-05-24 EJA579 ACK → TEB May 24, 16:20 UTCMay 24, 17:05 UTC45m
2026-05-24 EJA579 ACK → TEB May 24, 13:10 UTCMay 24, 14:45 UTC1h 35m
2026-05-22 EJA579 ACK → TEB May 22, 22:50 UTCMay 22, 23:00 UTC10m
2026-05-22 EJA579 ACK → TEB May 22, 19:10 UTCMay 22, 22:05 UTC2h 55m
2026-05-22 EJA579 ACK → TEB May 22, 17:40 UTCMay 22, 17:55 UTC15m
2026-05-22 EJA579 ACK → TEB May 22, 14:20 UTCMay 22, 16:35 UTC2h 15m
2026-05-22 EJA579 ACK → TEB May 22, 12:05 UTCMay 22, 12:50 UTC45m
2026-05-22 EJA579 ACK → TEB May 22, 02:20 UTCMay 22, 04:15 UTC1h 55m
2026-05-21 EJA579 ACK → TEB May 21, 22:35 UTCMay 22, 01:05 UTC2h 30m
2026-05-21 EJA579 ACK → TEB May 21, 18:50 UTCMay 21, 21:35 UTC2h 45m
2026-05-21 EJA579 ACK → TEB May 21, 03:55 UTCMay 21, 05:40 UTC1h 45m
2026-05-21 EJA579 ACK → TEB May 21, 02:10 UTCMay 21, 03:05 UTC55m
2026-05-20 EJA579 ACK → TEB May 20, 18:50 UTCMay 20, 19:10 UTC20m
2026-05-20 EJA579 ACK → TEB May 20, 15:15 UTCMay 20, 17:40 UTC2h 25m
2026-05-20 EJA579 ACK → TEB May 20, 13:20 UTCMay 20, 13:50 UTC30m
2026-05-20 EJA579 ACK → TEB May 20, 11:00 UTCMay 20, 12:00 UTC1h 0m
2026-05-19 EJA579 ACK → TEB May 19, 20:50 UTCMay 19, 22:35 UTC1h 45m
2026-05-19 EJA579 ACK → TEB May 19, 19:45 UTCMay 19, 20:00 UTC15m
2026-05-19 EJA579 ACK → TEB May 19, 17:55 UTCMay 19, 18:25 UTC30m
2026-05-19 EJA579 ACK → TEB May 19, 15:15 UTCMay 19, 17:00 UTC1h 45m
2026-05-19 EJA579 ACK → TEB May 19, 11:40 UTCMay 19, 13:25 UTC1h 45m
2026-05-18 EJA579 ACK → TEB May 18, 19:40 UTCMay 18, 20:45 UTC1h 5m
2026-05-18 EJA579 ACK → TEB May 18, 17:15 UTCMay 18, 18:15 UTC1h 0m
2026-05-18 EJA579 ACK → TEB May 18, 12:00 UTCMay 18, 12:30 UTC30m
2026-05-17 EJA579 ACK → TEB May 17, 22:30 UTCMay 17, 23:05 UTC35m
2026-05-17 EJA579 ACK → TEB May 17, 19:45 UTCMay 17, 20:25 UTC40m
2026-05-17 EJA579 ACK → TEB May 17, 18:15 UTCMay 17, 18:50 UTC35m
2026-05-17 EJA579 ACK → TEB May 17, 14:35 UTCMay 17, 15:10 UTC35m
2026-05-17 EJA579 ACK → TEB May 17, 13:05 UTCMay 17, 13:25 UTC20m
2026-05-16 EJA579 ACK → TEB May 16, 20:20 UTCMay 16, 21:30 UTC1h 10m
2026-05-16 EJA579 ACK → TEB May 16, 18:20 UTCMay 16, 19:30 UTC1h 10m
2026-05-16 EJA579 ACK → TEB May 16, 15:35 UTCMay 16, 16:40 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 N579QS page for operator, model, and routing details .

Mode-S A77147 frequently asked

What is Mode-S code A77147?
A77147 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N579QS.
Where is Mode-S A77147 registered?
Mode-S code A77147 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 A77147 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 A77147, octal 51670507, decimal 10,973,511.
What flights does A77147 operate?
Mode-S A77147 has broadcast 1 distinct callsign, including EJA579.