Apparatus

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sensors Mode-S transponder

A866AA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N640QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, AIROGANCE LLC, GRAPHIC PACKAGING INTERNATIONAL LLC, DELISO JOHN D, KATIE COURIC MEDIA LLC, LEWIS AVIATION LLC

Hex
A866AA
Octal
52063252
Decimal
11,036,330
Country
US
Tail
N640QS
Type
C68A
No current signal · last broadcast 15d ago
Flights observed
198
Distinct callsigns
2
Country
US
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S A866AA.

Country allocation

The ICAO 24-bit address A866AA 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
EJA640 - 189 2026-06-28
N640QS - 9 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-28 EJA640 - Jun 28, 23:14 UTCJun 29, 00:34 UTC1h 20m
2026-06-28 EJA640 - Jun 28, 20:45 UTCJun 28, 20:54 UTC10m
2026-06-28 EJA640 - Jun 28, 17:19 UTCJun 28, 19:34 UTC2h 15m
2026-06-28 EJA640 - Jun 28, 15:09 UTCJun 28, 15:55 UTC45m
2026-06-27 EJA640 - Jun 27, 23:39 UTCJun 28, 00:15 UTC35m
2026-06-27 EJA640 - Jun 27, 19:19 UTCJun 27, 19:29 UTC10m
2026-06-27 EJA640 - Jun 27, 16:30 UTCJun 27, 18:24 UTC1h 55m
2026-06-26 EJA640 - Jun 26, 13:59 UTCJun 26, 15:25 UTC1h 25m
2026-06-26 EJA640 - Jun 26, 12:34 UTCJun 26, 13:15 UTC40m
2026-06-26 EJA640 - Jun 26, 10:30 UTCJun 26, 11:14 UTC45m
2026-06-23 EJA640 - Jun 23, 16:24 UTCJun 23, 18:34 UTC2h 10m
2026-06-19 EJA640 - Jun 19, 18:49 UTCJun 19, 21:30 UTC2h 40m
2026-06-19 EJA640 - Jun 19, 16:55 UTCJun 19, 17:29 UTC35m
2026-06-19 EJA640 - Jun 19, 00:45 UTCJun 19, 03:24 UTC2h 40m
2026-06-18 EJA640 - Jun 18, 19:50 UTCJun 18, 22:10 UTC2h 20m
2026-06-18 EJA640 - Jun 18, 16:00 UTCJun 18, 19:15 UTC3h 15m
2026-06-18 EJA640 - Jun 18, 12:40 UTCJun 18, 13:30 UTC50m
2026-06-17 EJA640 - Jun 17, 23:35 UTCJun 18, 00:15 UTC40m
2026-06-17 EJA640 - Jun 17, 21:50 UTCJun 17, 22:45 UTC55m
2026-06-16 EJA640 YYZ → IAD Jun 16, 21:35 UTCJun 16, 22:30 UTC55m
2026-06-16 EJA640 IAD → YYZ Jun 16, 16:05 UTCJun 16, 17:00 UTC55m
2026-06-16 EJA640 MSP → IAD Jun 16, 12:30 UTCJun 16, 14:30 UTC2h 0m
2026-06-15 EJA640 - Jun 15, 18:40 UTCJun 15, 20:04 UTC1h 25m
2026-06-15 EJA640 MSP → YIP Jun 15, 14:20 UTCJun 15, 15:30 UTC1h 10m
2026-06-14 EJA640 - Jun 14, 23:15 UTCJun 15, 00:20 UTC1h 5m
2026-06-14 EJA640 - Jun 14, 20:20 UTCJun 14, 22:25 UTC2h 5m
2026-06-14 EJA640 - Jun 14, 18:25 UTCJun 14, 19:20 UTC55m
2026-06-14 EJA640 - Jun 14, 15:10 UTCJun 14, 17:15 UTC2h 5m
2026-06-13 EJA640 - Jun 13, 19:15 UTCJun 13, 20:20 UTC1h 5m
2026-06-06 EJA640 VNY → SCF Jun 6, 17:10 UTCJun 6, 19:54 UTC2h 45m
2026-06-06 EJA640 VNY → SCF Jun 6, 15:54 UTCJun 6, 15:59 UTC5m
2026-06-06 EJA640 VNY → SCF Jun 6, 01:55 UTCJun 6, 04:15 UTC2h 20m
2026-06-05 EJA640 VNY → SCF Jun 5, 23:45 UTCJun 6, 00:15 UTC30m
2026-06-03 EJA640 VNY → SCF Jun 3, 02:15 UTCJun 3, 02:40 UTC25m
2026-06-02 EJA640 VNY → SCF Jun 2, 23:15 UTCJun 3, 01:35 UTC2h 20m
2026-06-02 EJA640 VNY → SCF Jun 2, 21:10 UTCJun 2, 21:50 UTC40m
2026-06-02 EJA640 VNY → SCF Jun 2, 19:10 UTCJun 2, 19:40 UTC30m
2026-06-02 EJA640 VNY → SCF Jun 2, 16:15 UTCJun 2, 17:55 UTC1h 40m
2026-05-30 EJA640 VNY → SCF May 30, 19:20 UTCMay 30, 20:55 UTC1h 35m
2026-05-29 EJA640 VNY → SCF May 29, 17:55 UTCMay 29, 18:25 UTC30m
2026-05-28 EJA640 VNY → SCF May 28, 21:15 UTCMay 29, 01:25 UTC4h 10m
2026-05-28 EJA640 VNY → SCF May 28, 17:55 UTCMay 28, 18:35 UTC40m
2026-05-28 EJA640 VNY → SCF May 28, 16:10 UTCMay 28, 16:50 UTC40m
2026-05-27 EJA640 VNY → SCF May 27, 22:20 UTCMay 27, 23:35 UTC1h 15m
2026-05-27 EJA640 VNY → SCF May 27, 21:05 UTCMay 27, 21:45 UTC40m
2026-05-27 EJA640 VNY → SCF May 27, 18:05 UTCMay 27, 19:15 UTC1h 10m
2026-05-27 EJA640 VNY → SCF May 27, 15:55 UTCMay 27, 17:15 UTC1h 20m
2026-05-27 EJA640 VNY → SCF May 27, 13:40 UTCMay 27, 14:10 UTC30m
2026-05-27 EJA640 VNY → SCF May 27, 00:00 UTCMay 27, 00:30 UTC30m
2026-05-26 EJA640 VNY → SCF May 26, 21:09 UTCMay 26, 21:49 UTC40m

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 N640QS page for operator, model, and routing details .

Mode-S A866AA frequently asked

What is Mode-S code A866AA?
A866AA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N640QS.
Where is Mode-S A866AA registered?
Mode-S code A866AA 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 A866AA broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A866AA, octal 52063252, decimal 11,036,330.
What flights does A866AA operate?
Mode-S A866AA has broadcast 2 distinct callsigns, including EJA640, N640QS.