Apparatus

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sensors Mode-S transponder

A68A5D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N520QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, HC TRANSPORT HOLDINGS LLC, RAVAGO AMERICAS LLC, VGR ADVISORS LLC, ULTA INTEREST AVIATION LLC

Hex
A68A5D
Octal
51505135
Decimal
10,914,397
Country
US
Tail
N520QS
Type
C68A
No current signal · last broadcast 3h ago
Flights observed
116
Distinct callsigns
2
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A68A5D.

Country allocation

The ICAO 24-bit address A68A5D 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
EJA520 NetJets 106 2026-05-29
N520QS - 10 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EJA520 SCF → BUR May 29, 21:10 UTCMay 29, 22:15 UTC1h 5m
2026-05-29 EJA520 SCF → BUR May 29, 18:35 UTCMay 29, 19:35 UTC1h 0m
2026-05-29 EJA520 SCF → BUR May 29, 17:10 UTCMay 29, 17:50 UTC40m
2026-05-29 EJA520 SCF → BUR May 29, 13:35 UTCMay 29, 16:05 UTC2h 30m
2026-05-28 EJA520 SCF → BUR May 28, 19:50 UTCMay 28, 21:20 UTC1h 30m
2026-05-28 EJA520 SCF → BUR May 28, 16:15 UTCMay 28, 18:45 UTC2h 30m
2026-05-28 EJA520 SCF → BUR May 28, 13:10 UTCMay 28, 13:40 UTC30m
2026-05-27 EJA520 SCF → BUR May 27, 23:05 UTCMay 28, 00:10 UTC1h 5m
2026-05-27 EJA520 SCF → BUR May 27, 18:40 UTCMay 27, 22:00 UTC3h 20m
2026-05-26 EJA520 SCF → BUR May 26, 22:50 UTCMay 27, 02:44 UTC3h 55m
2026-05-26 N520QS - May 26, 19:15 UTCMay 26, 19:40 UTC25m
2026-05-26 N520QS - May 26, 14:30 UTCMay 26, 15:39 UTC1h 10m
2026-05-26 EJA520 SCF → BUR May 26, 00:39 UTCMay 26, 01:30 UTC50m
2026-05-25 EJA520 SCF → BUR May 25, 22:55 UTCMay 25, 23:14 UTC20m
2026-05-25 EJA520 SCF → BUR May 25, 17:55 UTCMay 25, 20:45 UTC2h 50m
2026-05-24 N520QS - May 24, 15:25 UTCMay 24, 16:00 UTC35m
2026-05-16 N520QS - May 16, 15:25 UTCMay 16, 16:35 UTC1h 10m
2026-05-16 EJA520 SCF → BUR May 16, 12:11 UTCMay 16, 13:51 UTC1h 40m
2026-05-16 EJA520 SCF → BUR May 16, 02:30 UTCMay 16, 03:30 UTC1h 0m
2026-05-16 EJA520 SCF → BUR May 16, 00:05 UTCMay 16, 00:15 UTC10m
2026-05-15 EJA520 SCF → BUR May 15, 22:35 UTCMay 15, 23:10 UTC35m
2026-05-15 EJA520 SCF → BUR May 15, 20:10 UTCMay 15, 20:40 UTC30m
2026-05-15 EJA520 SCF → BUR May 15, 16:50 UTCMay 15, 17:35 UTC45m
2026-05-15 EJA520 SCF → BUR May 15, 03:15 UTCMay 15, 04:05 UTC50m
2026-05-15 EJA520 SCF → BUR May 15, 01:25 UTCMay 15, 01:55 UTC30m
2026-05-14 EJA520 SCF → BUR May 14, 20:50 UTCMay 14, 22:50 UTC2h 0m
2026-05-14 EJA520 SCF → BUR May 14, 17:05 UTCMay 14, 18:40 UTC1h 35m
2026-05-14 EJA520 SCF → BUR May 14, 15:25 UTCMay 14, 16:00 UTC35m
2026-05-14 EJA520 SCF → BUR May 14, 01:05 UTCMay 14, 01:55 UTC50m
2026-05-13 EJA520 SCF → BUR May 13, 21:15 UTCMay 13, 23:50 UTC2h 35m
2026-05-13 EJA520 SCF → BUR May 13, 18:10 UTCMay 13, 19:40 UTC1h 30m
2026-05-13 EJA520 SCF → BUR May 13, 15:15 UTCMay 13, 17:15 UTC2h 0m
2026-05-12 EJA520 SCF → BUR May 12, 22:05 UTCMay 13, 00:55 UTC2h 50m
2026-05-12 EJA520 SCF → BUR May 12, 16:55 UTCMay 12, 20:55 UTC4h 0m
2026-05-11 EJA520 SCF → BUR May 11, 18:45 UTCMay 11, 20:20 UTC1h 35m
2026-05-11 EJA520 SCF → BUR May 11, 15:45 UTCMay 11, 17:25 UTC1h 40m
2026-05-11 EJA520 SCF → BUR May 11, 14:25 UTCMay 11, 14:40 UTC15m
2026-05-10 EJA520 SCF → BUR May 10, 23:19 UTCMay 11, 02:55 UTC3h 35m
2026-05-10 EJA520 SCF → BUR May 10, 19:40 UTCMay 10, 20:05 UTC25m
2026-05-10 EJA520 SCF → BUR May 10, 14:59 UTCMay 10, 19:00 UTC4h 0m
2026-05-10 EJA520 SCF → BUR May 10, 05:04 UTCMay 10, 06:15 UTC1h 10m
2026-05-10 EJA520 SCF → BUR May 10, 01:20 UTCMay 10, 02:00 UTC40m
2026-05-09 N520QS - May 9, 20:55 UTCMay 9, 22:15 UTC1h 20m
2026-05-08 N520QS - May 8, 21:20 UTCMay 9, 21:14 UTC23h 55m
2026-05-08 N520QS - May 8, 20:50 UTCMay 8, 22:05 UTC1h 15m
2026-05-08 EJA520 SCF → BUR May 8, 19:05 UTCMay 8, 19:45 UTC40m
2026-05-08 EJA520 SCF → BUR May 8, 15:25 UTCMay 8, 17:35 UTC2h 10m
2026-05-08 EJA520 SCF → BUR May 8, 13:30 UTCMay 8, 13:55 UTC25m
2026-05-07 EJA520 SCF → BUR May 7, 21:45 UTCMay 7, 23:45 UTC2h 0m
2026-05-07 EJA520 SCF → BUR May 7, 18:55 UTCMay 7, 20:55 UTC2h 0m

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 N520QS page for operator, model, and routing details .

Mode-S A68A5D frequently asked

What is Mode-S code A68A5D?
A68A5D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N520QS.
Where is Mode-S A68A5D registered?
Mode-S code A68A5D 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 A68A5D broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A68A5D, octal 51505135, decimal 10,914,397.
What flights does A68A5D operate?
Mode-S A68A5D has broadcast 2 distinct callsigns, including EJA520, N520QS.