Apparatus

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sensors Mode-S transponder

A8A0BC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N655QS · CESSNA 560XL Citation XLS · operated by NETJETS SALES INC

Hex
A8A0BC
Octal
52120274
Decimal
11,051,196
Country
US
Tail
N655QS
Type
C56X
No current signal · last broadcast 3d ago
Flights observed
85
Distinct callsigns
2
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A8A0BC.

Country allocation

The ICAO 24-bit address A8A0BC 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
EJA655 NetJets 83 2026-05-26
N655QS - 2 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-26 EJA655 SHR → SUN May 26, 11:05 UTCMay 26, 11:50 UTC45m
2026-05-25 EJA655 SHR → SUN May 25, 20:55 UTCMay 25, 22:34 UTC1h 40m
2026-05-25 EJA655 SHR → SUN May 25, 18:20 UTCMay 25, 19:44 UTC1h 25m
2026-05-25 EJA655 SHR → SUN May 25, 12:30 UTCMay 25, 12:40 UTC10m
2026-05-25 EJA655 SHR → SUN May 25, 11:00 UTCMay 25, 11:50 UTC50m
2026-05-21 EJA655 SHR → SUN May 21, 21:10 UTCMay 21, 21:50 UTC40m
2026-05-21 EJA655 SHR → SUN May 21, 19:05 UTCMay 21, 19:50 UTC45m
2026-05-19 EJA655 SHR → SUN May 19, 12:20 UTCMay 19, 14:00 UTC1h 40m
2026-05-18 EJA655 SHR → SUN May 18, 16:50 UTCMay 18, 19:05 UTC2h 14m
2026-05-18 EJA655 SHR → SUN May 18, 14:45 UTCMay 18, 15:10 UTC25m
2026-05-18 EJA655 SHR → SUN May 18, 12:05 UTCMay 18, 13:20 UTC1h 15m
2026-05-17 EJA655 SHR → SUN May 17, 21:05 UTCMay 18, 00:25 UTC3h 20m
2026-05-12 EJA655 SHR → SUN May 12, 19:35 UTCMay 12, 21:15 UTC1h 40m
2026-05-12 EJA655 SHR → SUN May 12, 17:45 UTCMay 12, 19:00 UTC1h 15m
2026-05-12 EJA655 SHR → SUN May 12, 14:55 UTCMay 12, 16:05 UTC1h 10m
2026-05-12 EJA655 SHR → SUN May 12, 12:00 UTCMay 12, 12:50 UTC50m
2026-05-11 EJA655 SHR → SUN May 11, 20:20 UTCMay 11, 21:30 UTC1h 10m
2026-05-11 EJA655 SHR → SUN May 11, 17:30 UTCMay 11, 18:35 UTC1h 5m
2026-05-11 EJA655 SHR → SUN May 11, 15:15 UTCMay 11, 15:40 UTC25m
2026-05-06 N655QS DFW → LRD May 6, 16:55 UTCMay 6, 22:20 UTC5h 24m
2026-05-06 EJA655 SHR → SUN May 6, 13:25 UTCMay 6, 15:35 UTC2h 10m
2026-05-05 EJA655 SHR → SUN May 5, 12:10 UTCMay 5, 13:25 UTC1h 15m
2026-05-04 EJA655 SHR → SUN May 4, 22:05 UTCMay 4, 22:50 UTC45m
2026-05-04 EJA655 SHR → SUN May 4, 18:25 UTCMay 4, 20:50 UTC2h 26m
2026-05-04 EJA655 SHR → SUN May 4, 15:45 UTCMay 4, 16:25 UTC40m
2026-05-03 EJA655 SHR → SUN May 3, 22:20 UTCMay 3, 23:15 UTC55m
2026-05-03 EJA655 SHR → SUN May 3, 19:05 UTCMay 3, 20:05 UTC1h 0m
2026-05-03 EJA655 SHR → SUN May 3, 16:05 UTCMay 3, 16:40 UTC35m
2026-05-03 EJA655 SHR → SUN May 3, 14:25 UTCMay 3, 14:55 UTC30m
2026-05-02 EJA655 SHR → SUN May 2, 22:50 UTCMay 2, 23:30 UTC40m
2026-05-02 EJA655 SHR → SUN May 2, 17:45 UTCMay 2, 18:15 UTC30m
2026-05-01 EJA655 SHR → SUN May 1, 21:55 UTCMay 1, 23:50 UTC1h 55m
2026-05-01 EJA655 SHR → SUN May 1, 19:00 UTCMay 1, 20:50 UTC1h 50m
2026-05-01 EJA655 SHR → SUN May 1, 17:00 UTCMay 1, 17:35 UTC35m
2026-05-01 EJA655 SHR → SUN May 1, 14:10 UTCMay 1, 15:20 UTC1h 10m
2026-04-30 EJA655 SHR → SUN Apr 30, 22:20 UTCApr 30, 22:30 UTC10m
2026-04-30 EJA655 SHR → SUN Apr 30, 18:45 UTCApr 30, 21:35 UTC2h 50m
2026-04-30 EJA655 SHR → SUN Apr 30, 17:05 UTCApr 30, 17:25 UTC20m
2026-04-30 EJA655 SHR → SUN Apr 30, 13:50 UTCApr 30, 15:20 UTC1h 30m
2026-04-30 EJA655 SHR → SUN Apr 30, 11:05 UTCApr 30, 12:20 UTC1h 15m
2026-04-29 EJA655 SHR → SUN Apr 29, 21:35 UTCApr 29, 23:00 UTC1h 25m
2026-04-29 EJA655 SHR → SUN Apr 29, 20:00 UTCApr 29, 21:00 UTC1h 0m
2026-04-29 EJA655 SHR → SUN Apr 29, 16:40 UTCApr 29, 17:05 UTC25m
2026-04-29 EJA655 SHR → SUN Apr 29, 14:55 UTCApr 29, 15:25 UTC30m
2026-04-29 EJA655 SHR → SUN Apr 29, 12:40 UTCApr 29, 13:40 UTC1h 0m
2026-04-28 EJA655 SHR → SUN Apr 28, 19:10 UTCApr 28, 20:45 UTC1h 35m
2026-04-28 EJA655 SHR → SUN Apr 28, 16:45 UTCApr 28, 17:25 UTC40m
2026-04-28 EJA655 SHR → SUN Apr 28, 12:00 UTCApr 28, 15:15 UTC3h 15m
2026-04-27 EJA655 SHR → SUN Apr 27, 20:40 UTCApr 27, 20:50 UTC10m
2026-04-27 EJA655 SHR → SUN Apr 27, 18:40 UTCApr 27, 19:50 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 N655QS page for operator, model, and routing details .

Mode-S A8A0BC frequently asked

What is Mode-S code A8A0BC?
A8A0BC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N655QS.
Where is Mode-S A8A0BC registered?
Mode-S code A8A0BC 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 A8A0BC broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8A0BC, octal 52120274, decimal 11,051,196.
What flights does A8A0BC operate?
Mode-S A8A0BC has broadcast 2 distinct callsigns, including EJA655, N655QS.