Apparatus

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sensors Mode-S transponder

A831AD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N627QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, ACC FINANCE CO OF ARKANSAS INC, BERKSHIRE HATHAWAY AUTOMOTIVE INC, CETAN TWO LLC, WEINGEIST DANIEL M, LASHIER AVIATION LLC

Hex
A831AD
Octal
52030655
Decimal
11,022,765
Country
US
Tail
N627QS
Type
C68A
No current signal · last broadcast 1h ago
Flights observed
87
Distinct callsigns
2
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A831AD.

Country allocation

The ICAO 24-bit address A831AD 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
EJA627 NetJets 85 2026-05-29
N627QS - 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EJA627 TUL → IAD May 29, 23:50 UTCMay 30, 00:15 UTC25m
2026-05-29 EJA627 TUL → IAD May 29, 19:30 UTCMay 29, 22:05 UTC2h 35m
2026-05-29 EJA627 TUL → IAD May 29, 14:15 UTCMay 29, 14:40 UTC25m
2026-05-29 EJA627 TUL → IAD May 29, 11:15 UTCMay 29, 13:40 UTC2h 25m
2026-05-28 EJA627 TUL → IAD May 28, 19:25 UTCMay 28, 20:55 UTC1h 30m
2026-05-28 EJA627 TUL → IAD May 28, 15:05 UTCMay 28, 18:15 UTC3h 10m
2026-05-27 EJA627 TUL → IAD May 27, 21:10 UTCMay 27, 21:40 UTC30m
2026-05-27 EJA627 TUL → IAD May 27, 15:30 UTCMay 27, 19:50 UTC4h 20m
2026-05-27 EJA627 TUL → IAD May 27, 11:50 UTCMay 27, 12:15 UTC25m
2026-05-26 EJA627 TUL → IAD May 26, 19:30 UTCMay 26, 19:55 UTC25m
2026-05-26 EJA627 TUL → IAD May 26, 17:59 UTCMay 26, 18:19 UTC20m
2026-05-26 EJA627 TUL → IAD May 26, 16:24 UTCMay 26, 16:40 UTC15m
2026-05-26 EJA627 TUL → IAD May 26, 14:14 UTCMay 26, 15:20 UTC1h 5m
2026-05-26 EJA627 TUL → IAD May 26, 11:50 UTCMay 26, 12:45 UTC55m
2026-05-25 EJA627 TUL → IAD May 25, 20:15 UTCMay 25, 21:30 UTC1h 15m
2026-05-25 EJA627 TUL → IAD May 25, 18:05 UTCMay 25, 19:20 UTC1h 15m
2026-05-25 EJA627 TUL → IAD May 25, 14:55 UTCMay 25, 16:00 UTC1h 5m
2026-05-22 EJA627 TUL → IAD May 22, 16:30 UTCMay 22, 17:20 UTC50m
2026-05-21 EJA627 TUL → IAD May 21, 22:20 UTCMay 21, 23:45 UTC1h 25m
2026-05-21 EJA627 TUL → IAD May 21, 19:45 UTCMay 21, 20:35 UTC50m
2026-05-21 EJA627 TUL → IAD May 21, 17:00 UTCMay 21, 17:40 UTC40m
2026-05-21 EJA627 TUL → IAD May 21, 13:30 UTCMay 21, 16:01 UTC2h 30m
2026-05-20 EJA627 TUL → IAD May 20, 19:40 UTCMay 20, 20:10 UTC30m
2026-05-20 EJA627 TUL → IAD May 20, 16:10 UTCMay 20, 18:50 UTC2h 40m
2026-05-20 EJA627 TUL → IAD May 20, 14:25 UTCMay 20, 15:00 UTC35m
2026-05-20 EJA627 TUL → IAD May 20, 12:10 UTCMay 20, 12:45 UTC35m
2026-05-19 N627QS - May 19, 15:35 UTCMay 19, 16:15 UTC40m
2026-05-07 N627QS - May 7, 21:25 UTCMay 7, 21:55 UTC30m
2026-05-07 EJA627 TUL → IAD May 7, 18:40 UTCMay 7, 19:50 UTC1h 10m
2026-05-07 EJA627 TUL → IAD May 7, 17:10 UTCMay 7, 17:30 UTC20m
2026-05-07 EJA627 TUL → IAD May 7, 15:00 UTCMay 7, 16:30 UTC1h 30m
2026-05-06 EJA627 TUL → IAD May 6, 13:10 UTCMay 6, 14:50 UTC1h 40m
2026-05-05 EJA627 TUL → IAD May 5, 20:45 UTCMay 5, 21:35 UTC50m
2026-05-05 EJA627 TUL → IAD May 5, 14:05 UTCMay 5, 19:00 UTC4h 55m
2026-05-04 EJA627 TUL → IAD May 4, 13:00 UTCMay 4, 14:15 UTC1h 15m
2026-05-03 EJA627 TUL → IAD May 3, 19:34 UTCMay 3, 21:44 UTC2h 10m
2026-05-03 EJA627 TUL → IAD May 3, 14:50 UTCMay 3, 18:55 UTC4h 5m
2026-05-03 EJA627 TUL → IAD May 3, 11:30 UTCMay 3, 13:10 UTC1h 40m
2026-05-02 EJA627 TUL → IAD May 2, 18:30 UTCMay 2, 19:25 UTC55m
2026-05-02 EJA627 TUL → IAD May 2, 14:20 UTCMay 2, 16:25 UTC2h 5m
2026-05-01 EJA627 TUL → IAD May 1, 21:05 UTCMay 1, 21:35 UTC30m
2026-05-01 EJA627 TUL → IAD May 1, 17:40 UTCMay 1, 18:10 UTC30m
2026-05-01 EJA627 TUL → IAD May 1, 14:35 UTCMay 1, 16:45 UTC2h 10m
2026-05-01 EJA627 TUL → IAD May 1, 13:15 UTCMay 1, 13:55 UTC40m
2026-05-01 EJA627 TUL → IAD May 1, 10:50 UTCMay 1, 11:50 UTC1h 0m
2026-04-30 EJA627 TUL → IAD Apr 30, 21:50 UTCApr 30, 23:00 UTC1h 10m
2026-04-30 EJA627 TUL → IAD Apr 30, 19:25 UTCApr 30, 20:50 UTC1h 25m
2026-04-28 EJA627 TUL → IAD Apr 28, 18:30 UTCApr 28, 19:45 UTC1h 15m
2026-04-28 EJA627 TUL → IAD Apr 28, 15:40 UTCApr 28, 16:10 UTC30m
2026-04-27 EJA627 TUL → IAD Apr 27, 15:10 UTCApr 27, 17:10 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 N627QS page for operator, model, and routing details .

Mode-S A831AD frequently asked

What is Mode-S code A831AD?
A831AD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N627QS.
Where is Mode-S A831AD registered?
Mode-S code A831AD 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 A831AD broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A831AD, octal 52030655, decimal 11,022,765.
What flights does A831AD operate?
Mode-S A831AD has broadcast 2 distinct callsigns, including EJA627, N627QS.