Apparatus

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sensors Mode-S transponder

A65917

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N508QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, NETJETS AVIATION INC

Hex
A65917
Octal
51454427
Decimal
10,901,783
Country
US
Tail
N508QS
Type
C68A
No current signal · last broadcast 2d ago
Flights observed
107
Distinct callsigns
2
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A65917.

Country allocation

The ICAO 24-bit address A65917 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
EJA508 NetJets 103 2026-05-30
N508QS - 4 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EJA508 SFO → APC May 30, 20:00 UTCMay 31, 00:30 UTC4h 30m
2026-05-30 EJA508 SFO → APC May 30, 16:05 UTCMay 30, 16:45 UTC40m
2026-05-29 EJA508 SFO → APC May 29, 22:20 UTCMay 29, 23:45 UTC1h 25m
2026-05-29 EJA508 SFO → APC May 29, 20:05 UTCMay 29, 20:45 UTC40m
2026-05-29 EJA508 SFO → APC May 29, 17:25 UTCMay 29, 18:50 UTC1h 25m
2026-05-29 EJA508 SFO → APC May 29, 14:55 UTCMay 29, 15:35 UTC40m
2026-05-29 EJA508 SFO → APC May 29, 01:20 UTCMay 29, 02:25 UTC1h 5m
2026-05-28 EJA508 SFO → APC May 28, 23:50 UTCMay 29, 00:35 UTC45m
2026-05-28 EJA508 SFO → APC May 28, 19:05 UTCMay 28, 21:00 UTC1h 55m
2026-05-27 EJA508 SFO → APC May 27, 22:15 UTCMay 27, 23:45 UTC1h 30m
2026-05-27 EJA508 SFO → APC May 27, 13:50 UTCMay 27, 18:30 UTC4h 40m
2026-05-26 EJA508 SFO → APC May 26, 23:19 UTCMay 27, 00:04 UTC45m
2026-05-26 EJA508 SFO → APC May 26, 18:40 UTCMay 26, 21:59 UTC3h 20m
2026-05-26 EJA508 SFO → APC May 26, 14:20 UTCMay 26, 16:15 UTC1h 55m
2026-05-25 EJA508 SFO → APC May 25, 22:05 UTCMay 26, 00:49 UTC2h 45m
2026-05-25 EJA508 SFO → APC May 25, 18:20 UTCMay 25, 20:15 UTC1h 55m
2026-05-25 EJA508 SFO → APC May 25, 15:30 UTCMay 25, 16:00 UTC30m
2026-05-23 EJA508 SFO → APC May 23, 15:00 UTCMay 23, 17:20 UTC2h 20m
2026-05-23 EJA508 SFO → APC May 23, 00:15 UTCMay 23, 01:20 UTC1h 5m
2026-05-22 EJA508 SFO → APC May 22, 21:15 UTCMay 22, 23:05 UTC1h 50m
2026-05-22 EJA508 SFO → APC May 22, 20:00 UTCMay 22, 20:30 UTC30m
2026-05-22 EJA508 SFO → APC May 22, 16:10 UTCMay 22, 18:50 UTC2h 40m
2026-05-22 EJA508 SFO → APC May 22, 14:05 UTCMay 22, 14:50 UTC45m
2026-05-22 EJA508 SFO → APC May 22, 01:00 UTCMay 22, 01:45 UTC45m
2026-05-21 EJA508 SFO → APC May 21, 23:20 UTCMay 22, 00:15 UTC55m
2026-05-21 EJA508 SFO → APC May 21, 16:30 UTCMay 21, 20:30 UTC4h 0m
2026-05-21 EJA508 SFO → APC May 21, 13:40 UTCMay 21, 14:30 UTC50m
2026-05-20 EJA508 SFO → APC May 20, 20:55 UTCMay 21, 00:05 UTC3h 10m
2026-05-20 N508QS - May 20, 18:25 UTCMay 20, 18:50 UTC25m
2026-05-20 N508QS - May 20, 14:55 UTCMay 20, 16:35 UTC1h 40m
2026-05-20 EJA508 SFO → APC May 20, 04:00 UTCMay 20, 05:50 UTC1h 51m
2026-05-19 EJA508 SFO → APC May 19, 21:00 UTCMay 19, 22:00 UTC1h 0m
2026-05-19 EJA508 SFO → APC May 19, 15:05 UTCMay 19, 20:05 UTC5h 0m
2026-05-19 EJA508 SFO → APC May 19, 12:55 UTCMay 19, 13:05 UTC10m
2026-05-19 EJA508 SFO → APC May 19, 00:00 UTCMay 19, 00:15 UTC15m
2026-05-18 EJA508 SFO → APC May 18, 22:15 UTCMay 18, 23:20 UTC1h 5m
2026-05-18 EJA508 SFO → APC May 18, 16:50 UTCMay 18, 19:00 UTC2h 9m
2026-05-18 EJA508 SFO → APC May 18, 14:35 UTCMay 18, 15:55 UTC1h 20m
2026-05-17 EJA508 SFO → APC May 17, 17:05 UTCMay 17, 20:45 UTC3h 40m
2026-05-17 EJA508 SFO → APC May 17, 14:20 UTCMay 17, 15:45 UTC1h 25m
2026-05-17 EJA508 SFO → APC May 17, 11:05 UTCMay 17, 12:55 UTC1h 50m
2026-05-16 EJA508 SFO → APC May 16, 15:45 UTCMay 16, 16:31 UTC45m
2026-05-16 EJA508 SFO → APC May 16, 12:40 UTCMay 16, 13:35 UTC55m
2026-05-15 EJA508 SFO → APC May 15, 21:05 UTCMay 15, 21:55 UTC50m
2026-05-15 EJA508 SFO → APC May 15, 19:05 UTCMay 15, 20:05 UTC1h 0m
2026-05-15 EJA508 SFO → APC May 15, 16:25 UTCMay 15, 16:45 UTC20m
2026-05-15 EJA508 SFO → APC May 15, 14:05 UTCMay 15, 15:10 UTC1h 4m
2026-05-14 EJA508 SFO → APC May 14, 22:20 UTCMay 14, 22:35 UTC15m
2026-05-14 EJA508 SFO → APC May 14, 20:10 UTCMay 14, 21:15 UTC1h 5m
2026-05-14 EJA508 SFO → APC May 14, 18:00 UTCMay 14, 18:20 UTC20m

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 N508QS page for operator, model, and routing details .

Mode-S A65917 frequently asked

What is Mode-S code A65917?
A65917 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N508QS.
Where is Mode-S A65917 registered?
Mode-S code A65917 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 A65917 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A65917, octal 51454427, decimal 10,901,783.
What flights does A65917 operate?
Mode-S A65917 has broadcast 2 distinct callsigns, including EJA508, N508QS.