Apparatus

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sensors Mode-S transponder

AAF228

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N804QS · CESSNA 700 Citation Longitude · operated by NETJETS SALES INC, ARCHER-DANIELS-MIDLAND CO, FIVE O'S LLC, INFLECTION CAPITAL LLC, SIDWELL JEFFREY R, KIMBALLWOOD LLC

Hex
AAF228
Octal
52571050
Decimal
11,203,112
Country
US
Tail
N804QS
Type
C700
No current signal · last broadcast 16d ago
Flights observed
39
Distinct callsigns
5
Country
US
Last broadcast
16d ago

Last known position

Most recent position reported by Mode-S AAF228.

Country allocation

The ICAO 24-bit address AAF228 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 5 distinct

Callsign Airline Flights Last seen
EJA804 NetJets 34 2026-07-05
N804QS - 2 2026-07-03
CITT97 - 1 2026-06-01
CITT46 - 1 2026-05-26
CITT45 - 1 2026-06-05

Recent flights last 39

DateFlightRouteTakeoffLandingDuration
2026-07-05 EJA804 BFI → MMU Jul 5, 12:45 UTCJul 5, 14:10 UTC1h 25m
2026-07-03 N804QS - Jul 3, 19:35 UTCJul 3, 19:55 UTC20m
2026-07-03 N804QS - Jul 3, 13:55 UTCJul 3, 14:30 UTC35m
2026-07-02 EJA804 BFI → MMU Jul 2, 23:25 UTCJul 2, 23:35 UTC10m
2026-07-02 EJA804 BFI → MMU Jul 2, 17:35 UTCJul 2, 19:30 UTC1h 55m
2026-07-02 EJA804 BFI → MMU Jul 2, 15:50 UTCJul 2, 16:30 UTC40m
2026-07-01 EJA804 BFI → MMU Jul 1, 17:35 UTCJul 1, 19:15 UTC1h 40m
2026-07-01 EJA804 BFI → MMU Jul 1, 14:35 UTCJul 1, 16:20 UTC1h 45m
2026-07-01 EJA804 BFI → MMU Jul 1, 12:40 UTCJul 1, 13:15 UTC35m
2026-06-28 EJA804 BFI → MMU Jun 28, 23:29 UTCJun 28, 23:50 UTC20m
2026-06-28 EJA804 BFI → MMU Jun 28, 20:04 UTCJun 28, 22:20 UTC2h 15m
2026-06-28 EJA804 BFI → MMU Jun 28, 17:55 UTCJun 28, 18:19 UTC25m
2026-06-28 EJA804 BFI → MMU Jun 28, 16:19 UTCJun 28, 17:10 UTC50m
2026-06-26 EJA804 BFI → MMU Jun 26, 23:55 UTCJun 27, 01:49 UTC1h 55m
2026-06-26 EJA804 BFI → MMU Jun 26, 21:35 UTCJun 26, 22:55 UTC1h 20m
2026-06-26 EJA804 BFI → MMU Jun 26, 18:15 UTCJun 26, 19:04 UTC50m
2026-06-26 EJA804 BFI → MMU Jun 26, 14:59 UTCJun 26, 15:29 UTC30m
2026-06-25 EJA804 BFI → MMU Jun 25, 21:50 UTCJun 25, 23:30 UTC1h 40m
2026-06-25 EJA804 BFI → MMU Jun 25, 19:49 UTCJun 25, 21:15 UTC1h 25m
2026-06-24 EJA804 BFI → MMU Jun 24, 23:50 UTCJun 25, 00:40 UTC50m
2026-06-19 EJA804 BFI → MMU Jun 19, 21:04 UTCJun 19, 21:44 UTC40m
2026-06-19 EJA804 BFI → MMU Jun 19, 18:54 UTCJun 19, 19:09 UTC15m
2026-06-19 EJA804 BFI → MMU Jun 19, 12:49 UTCJun 19, 17:55 UTC5h 5m
2026-06-18 EJA804 BFI → MMU Jun 18, 23:35 UTCJun 18, 23:50 UTC15m
2026-06-18 EJA804 BFI → MMU Jun 18, 20:25 UTCJun 18, 22:35 UTC2h 10m
2026-06-18 EJA804 BFI → MMU Jun 18, 19:05 UTCJun 18, 19:30 UTC25m
2026-06-14 EJA804 BFI → MMU Jun 14, 18:40 UTCJun 14, 20:55 UTC2h 15m
2026-06-13 EJA804 BFI → MMU Jun 13, 20:05 UTCJun 13, 21:30 UTC1h 25m
2026-06-09 EJA804 BFI → MMU Jun 9, 00:00 UTCJun 9, 01:10 UTC1h 10m
2026-06-07 EJA804 BFI → MMU Jun 7, 00:34 UTCJun 7, 01:15 UTC40m
2026-06-06 EJA804 BFI → MMU Jun 6, 23:09 UTCJun 6, 23:39 UTC30m
2026-06-06 EJA804 BFI → MMU Jun 6, 21:09 UTCJun 6, 21:40 UTC30m
2026-06-05 CITT45 - Jun 5, 15:10 UTCJun 5, 15:45 UTC35m
2026-06-01 CITT97 - Jun 1, 13:35 UTCJun 1, 14:05 UTC30m
2026-05-26 CITT46 - May 26, 14:30 UTCMay 26, 15:05 UTC35m
2026-04-29 EJA804 BFI → MMU Apr 29, 22:15 UTCApr 30, 00:25 UTC2h 9m
2026-04-25 EJA804 BFI → MMU Apr 25, 15:25 UTCApr 25, 16:20 UTC55m
2026-04-21 EJA804 BFI → MMU Apr 21, 14:31 UTCApr 21, 14:50 UTC20m
2026-04-16 EJA804 BFI → MMU Apr 16, 21:20 UTCApr 16, 21:50 UTC30m

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 N804QS page for operator, model, and routing details .

Mode-S AAF228 frequently asked

What is Mode-S code AAF228?
AAF228 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N804QS.
Where is Mode-S AAF228 registered?
Mode-S code AAF228 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 AAF228 broadcasting right now?
No active broadcast right now. Last signal was 16d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAF228, octal 52571050, decimal 11,203,112.
What flights does AAF228 operate?
Mode-S AAF228 has broadcast 5 distinct callsigns, including EJA804, N804QS, CITT97, CITT46, CITT45.