Apparatus

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sensors Mode-S transponder

AD48A9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N955QS · CESSNA 680 Citation Sovereign · operated by 7RX LLC, SMITH ANDREA B, SMITH SEAN CRANE, SINGER ANDREW SCOTT, LANE FLINT, HAG AVIATION LLC

Hex
AD48A9
Octal
53244251
Decimal
11,356,329
Country
US
Tail
N955QS
Type
C680
No current signal · last broadcast 4h ago
Flights observed
153
Distinct callsigns
2
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S AD48A9.

Country allocation

The ICAO 24-bit address AD48A9 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
EJA955 NetJets 147 2026-05-29
N955QS - 6 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EJA955 FMY → DSM May 29, 21:00 UTCMay 29, 22:10 UTC1h 10m
2026-05-29 EJA955 FMY → DSM May 29, 19:15 UTCMay 29, 19:30 UTC15m
2026-05-29 EJA955 FMY → DSM May 29, 17:25 UTCMay 29, 18:20 UTC55m
2026-05-29 EJA955 FMY → DSM May 29, 14:20 UTCMay 29, 15:00 UTC40m
2026-05-29 EJA955 FMY → DSM May 29, 11:20 UTCMay 29, 11:55 UTC35m
2026-05-28 EJA955 FMY → DSM May 28, 21:45 UTCMay 28, 22:40 UTC55m
2026-05-28 EJA955 FMY → DSM May 28, 17:50 UTCMay 28, 20:25 UTC2h 35m
2026-05-28 EJA955 FMY → DSM May 28, 15:00 UTCMay 28, 15:55 UTC55m
2026-05-27 EJA955 FMY → DSM May 27, 23:40 UTCMay 28, 01:20 UTC1h 40m
2026-05-27 EJA955 FMY → DSM May 27, 15:15 UTCMay 27, 16:25 UTC1h 10m
2026-05-27 EJA955 FMY → DSM May 27, 12:45 UTCMay 27, 13:45 UTC1h 0m
2026-05-26 EJA955 FMY → DSM May 26, 20:09 UTCMay 26, 22:50 UTC2h 40m
2026-05-26 EJA955 FMY → DSM May 26, 16:05 UTCMay 26, 16:59 UTC55m
2026-05-26 EJA955 FMY → DSM May 26, 13:00 UTCMay 26, 15:09 UTC2h 10m
2026-05-25 EJA955 FMY → DSM May 25, 16:00 UTCMay 25, 18:05 UTC2h 5m
2026-05-25 EJA955 FMY → DSM May 25, 14:20 UTCMay 25, 14:45 UTC25m
2026-05-24 EJA955 FMY → DSM May 24, 20:30 UTCMay 24, 20:55 UTC25m
2026-05-24 EJA955 FMY → DSM May 24, 17:10 UTCMay 24, 17:30 UTC20m
2026-05-24 EJA955 FMY → DSM May 24, 13:05 UTCMay 24, 15:45 UTC2h 40m
2026-05-23 EJA955 FMY → DSM May 23, 19:25 UTCMay 23, 20:25 UTC1h 0m
2026-05-23 EJA955 FMY → DSM May 23, 17:30 UTCMay 23, 18:00 UTC30m
2026-05-23 EJA955 FMY → DSM May 23, 15:25 UTCMay 23, 16:30 UTC1h 5m
2026-05-23 EJA955 FMY → DSM May 23, 12:50 UTCMay 23, 13:55 UTC1h 5m
2026-05-22 EJA955 FMY → DSM May 22, 21:00 UTCMay 22, 22:55 UTC1h 55m
2026-05-22 EJA955 FMY → DSM May 22, 17:50 UTCMay 22, 18:40 UTC50m
2026-05-22 EJA955 FMY → DSM May 22, 15:40 UTCMay 22, 16:20 UTC40m
2026-05-22 EJA955 FMY → DSM May 22, 13:10 UTCMay 22, 14:50 UTC1h 40m
2026-05-21 EJA955 FMY → DSM May 21, 21:15 UTCMay 21, 22:40 UTC1h 25m
2026-05-21 EJA955 FMY → DSM May 21, 19:05 UTCMay 21, 20:00 UTC55m
2026-05-21 EJA955 FMY → DSM May 21, 15:10 UTCMay 21, 17:25 UTC2h 15m
2026-05-20 EJA955 FMY → DSM May 20, 23:20 UTCMay 21, 00:45 UTC1h 25m
2026-05-20 EJA955 FMY → DSM May 20, 20:00 UTCMay 20, 20:50 UTC50m
2026-05-20 EJA955 FMY → DSM May 20, 16:00 UTCMay 20, 18:20 UTC2h 20m
2026-05-20 EJA955 FMY → DSM May 20, 14:15 UTCMay 20, 15:00 UTC45m
2026-05-19 EJA955 FMY → DSM May 19, 22:40 UTCMay 20, 00:25 UTC1h 45m
2026-05-19 EJA955 FMY → DSM May 19, 19:45 UTCMay 19, 20:35 UTC50m
2026-05-19 EJA955 FMY → DSM May 19, 17:15 UTCMay 19, 18:35 UTC1h 20m
2026-05-19 EJA955 FMY → DSM May 19, 14:55 UTCMay 19, 15:10 UTC15m
2026-05-18 EJA955 FMY → DSM May 18, 19:35 UTCMay 18, 23:30 UTC3h 55m
2026-05-18 EJA955 FMY → DSM May 18, 12:00 UTCMay 18, 12:30 UTC30m
2026-05-16 EJA955 FMY → DSM May 16, 14:25 UTCMay 16, 19:30 UTC5h 5m
2026-05-15 EJA955 FMY → DSM May 15, 19:45 UTCMay 15, 21:50 UTC2h 5m
2026-05-15 EJA955 FMY → DSM May 15, 15:40 UTCMay 15, 18:15 UTC2h 35m
2026-05-14 EJA955 FMY → DSM May 14, 16:10 UTCMay 14, 18:40 UTC2h 30m
2026-05-13 EJA955 FMY → DSM May 13, 21:15 UTCMay 14, 00:30 UTC3h 15m
2026-05-13 EJA955 FMY → DSM May 13, 17:00 UTCMay 13, 18:50 UTC1h 50m
2026-05-13 EJA955 FMY → DSM May 13, 15:25 UTCMay 13, 15:40 UTC15m
2026-05-13 EJA955 FMY → DSM May 13, 11:10 UTCMay 13, 11:50 UTC40m
2026-05-13 EJA955 FMY → DSM May 13, 01:10 UTCMay 13, 01:45 UTC35m
2026-05-12 EJA955 FMY → DSM May 12, 21:55 UTCMay 12, 22:31 UTC35m

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 N955QS page for operator, model, and routing details .

Mode-S AD48A9 frequently asked

What is Mode-S code AD48A9?
AD48A9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N955QS.
Where is Mode-S AD48A9 registered?
Mode-S code AD48A9 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 AD48A9 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD48A9, octal 53244251, decimal 11,356,329.
What flights does AD48A9 operate?
Mode-S AD48A9 has broadcast 2 distinct callsigns, including EJA955, N955QS.