Apparatus

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sensors Mode-S transponder

A8C83B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N665QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, BLISS AIR LLC, STEWART AVIATION LLC, TWO J FILM COMPANY LLC, WILMINGTON TRUST CO TRUSTEE, SOUTHEAST AUTOMOTIVE GROUP INC

Hex
A8C83B
Octal
52144073
Decimal
11,061,307
Country
US
Tail
N665QS
Type
C68A
No current signal · last broadcast 6d ago
Flights observed
147
Distinct callsigns
2
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S A8C83B.

Country allocation

The ICAO 24-bit address A8C83B 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
EJA665 - 145 2026-07-11
N665QS - 2 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 EJA665 - Jul 11, 19:50 UTCJul 11, 20:35 UTC45m
2026-07-11 EJA665 - Jul 11, 15:40 UTCJul 11, 17:55 UTC2h 15m
2026-07-10 EJA665 - Jul 10, 20:10 UTCJul 10, 21:15 UTC1h 5m
2026-07-10 EJA665 - Jul 10, 17:20 UTCJul 10, 19:30 UTC2h 10m
2026-07-10 EJA665 - Jul 10, 12:50 UTCJul 10, 14:20 UTC1h 30m
2026-07-09 EJA665 STP → YYZ Jul 9, 20:05 UTCJul 9, 21:35 UTC1h 30m
2026-07-09 EJA665 - Jul 9, 16:45 UTCJul 9, 17:40 UTC55m
2026-07-09 EJA665 - Jul 9, 14:45 UTCJul 9, 15:05 UTC20m
2026-07-09 EJA665 FSD → ORD Jul 9, 11:50 UTCJul 9, 13:05 UTC1h 15m
2026-07-08 EJA665 - Jul 8, 15:20 UTCJul 8, 19:50 UTC4h 30m
2026-07-08 EJA665 - Jul 8, 13:00 UTCJul 8, 13:25 UTC25m
2026-07-08 EJA665 COE → LAX Jul 8, 02:05 UTCJul 8, 04:45 UTC2h 40m
2026-07-07 EJA665 - Jul 7, 22:20 UTCJul 7, 23:00 UTC40m
2026-07-07 EJA665 - Jul 7, 18:40 UTCJul 7, 20:05 UTC1h 25m
2026-07-07 EJA665 SJC → VNY Jul 7, 14:15 UTCJul 7, 15:05 UTC50m
2026-07-06 EJA665 APC → SJC Jul 6, 20:55 UTCJul 6, 21:20 UTC25m
2026-07-06 EJA665 - Jul 6, 17:25 UTCJul 6, 20:05 UTC2h 40m
2026-07-06 EJA665 - Jul 6, 13:35 UTCJul 6, 16:10 UTC2h 35m
2026-07-05 EJA665 - Jul 5, 20:05 UTCJul 5, 20:25 UTC20m
2026-07-05 EJA665 - Jul 5, 16:40 UTCJul 5, 19:15 UTC2h 35m
2026-07-05 EJA665 - Jul 5, 14:20 UTCJul 5, 14:45 UTC25m
2026-07-05 EJA665 - Jul 5, 12:45 UTCJul 5, 13:15 UTC30m
2026-07-03 EJA665 - Jul 3, 21:00 UTCJul 3, 21:20 UTC20m
2026-06-11 EJA665 GSO → PHL Jun 11, 16:10 UTCJun 11, 18:25 UTC2h 15m
2026-06-11 EJA665 GSO → PHL Jun 11, 00:15 UTCJun 11, 03:15 UTC3h 0m
2026-06-10 EJA665 GSO → PHL Jun 10, 19:10 UTCJun 10, 20:50 UTC1h 40m
2026-06-10 EJA665 GSO → PHL Jun 10, 02:00 UTCJun 10, 03:00 UTC1h 0m
2026-06-09 EJA665 GSO → PHL Jun 9, 21:45 UTCJun 9, 22:35 UTC50m
2026-06-09 EJA665 GSO → PHL Jun 9, 20:05 UTCJun 9, 20:20 UTC15m
2026-06-09 EJA665 GSO → PHL Jun 9, 17:55 UTCJun 9, 18:40 UTC45m
2026-06-09 EJA665 GSO → PHL Jun 9, 15:45 UTCJun 9, 15:50 UTC5m
2026-06-08 EJA665 GSO → PHL Jun 8, 22:20 UTCJun 9, 00:25 UTC2h 5m
2026-06-08 EJA665 GSO → PHL Jun 8, 16:00 UTCJun 8, 21:25 UTC5h 25m
2026-06-08 EJA665 GSO → PHL Jun 8, 00:55 UTCJun 8, 01:40 UTC45m
2026-06-07 EJA665 GSO → PHL Jun 7, 22:10 UTCJun 7, 23:50 UTC1h 40m
2026-06-07 EJA665 GSO → PHL Jun 7, 19:40 UTCJun 7, 21:20 UTC1h 40m
2026-06-07 EJA665 GSO → PHL Jun 7, 16:55 UTCJun 7, 18:40 UTC1h 45m
2026-06-07 EJA665 GSO → PHL Jun 7, 15:05 UTCJun 7, 16:15 UTC1h 10m
2026-06-06 EJA665 GSO → PHL Jun 6, 22:05 UTCJun 7, 01:20 UTC3h 15m
2026-06-06 EJA665 GSO → PHL Jun 6, 19:54 UTCJun 6, 20:49 UTC55m
2026-06-06 EJA665 GSO → PHL Jun 6, 14:20 UTCJun 6, 15:44 UTC1h 25m
2026-06-06 EJA665 GSO → PHL Jun 6, 11:45 UTCJun 6, 12:45 UTC1h 0m
2026-06-05 EJA665 GSO → PHL Jun 5, 21:50 UTCJun 5, 22:30 UTC40m
2026-06-05 EJA665 GSO → PHL Jun 5, 19:35 UTCJun 5, 21:00 UTC1h 25m
2026-06-05 EJA665 GSO → PHL Jun 5, 16:40 UTCJun 5, 18:00 UTC1h 20m
2026-06-05 EJA665 GSO → PHL Jun 5, 14:20 UTCJun 5, 15:45 UTC1h 25m
2026-06-04 EJA665 GSO → PHL Jun 4, 21:55 UTCJun 4, 22:20 UTC25m
2026-06-04 EJA665 GSO → PHL Jun 4, 18:20 UTCJun 4, 20:30 UTC2h 10m
2026-06-04 EJA665 GSO → PHL Jun 4, 16:45 UTCJun 4, 17:00 UTC15m
2026-06-03 EJA665 GSO → PHL Jun 3, 18:05 UTCJun 3, 19:15 UTC1h 10m

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 N665QS page for operator, model, and routing details .

Mode-S A8C83B frequently asked

What is Mode-S code A8C83B?
A8C83B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N665QS.
Where is Mode-S A8C83B registered?
Mode-S code A8C83B 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 A8C83B broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8C83B, octal 52144073, decimal 11,061,307.
What flights does A8C83B operate?
Mode-S A8C83B has broadcast 2 distinct callsigns, including EJA665, N665QS.