Apparatus

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sensors Mode-S transponder

AD97A7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N975QS · CESSNA 680 Citation Latitude · operated by ACE AVIATION HOLDINGS LLC, AIR JOE LLC, CAROLAIRE INC, CONTINENTAL INVESTORS LLC, FISHMAN LKF HOLDINGS INC, EMPOWER RETIREMENT LLC

Hex
AD97A7
Octal
53313647
Decimal
11,376,551
Country
US
Tail
N975QS
Type
C68A
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
216
Distinct callsigns
2
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S AD97A7.

Country allocation

The ICAO 24-bit address AD97A7 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
EJA975 NetJets 198 2026-07-26
N975QS - 18 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N975QS - Jul 26, 15:20 UTCJul 26, 21:45 UTC6h 25m
2026-07-26 EJA975 HUT → PWK Jul 26, 13:40 UTCJul 26, 14:25 UTC45m
2026-07-25 EJA975 HUT → PWK Jul 25, 19:15 UTCJul 25, 19:40 UTC25m
2026-07-25 EJA975 HUT → PWK Jul 25, 14:20 UTCJul 25, 16:10 UTC1h 50m
2026-07-24 EJA975 HUT → PWK Jul 24, 19:20 UTCJul 24, 19:35 UTC15m
2026-07-24 EJA975 HUT → PWK Jul 24, 18:30 UTCJul 24, 18:50 UTC20m
2026-07-24 EJA975 HUT → PWK Jul 24, 15:35 UTCJul 24, 16:55 UTC1h 20m
2026-07-24 EJA975 HUT → PWK Jul 24, 13:55 UTCJul 24, 14:50 UTC55m
2026-07-24 EJA975 HUT → PWK Jul 24, 03:55 UTCJul 24, 06:10 UTC2h 15m
2026-07-24 EJA975 HUT → PWK Jul 24, 00:55 UTCJul 24, 02:15 UTC1h 20m
2026-07-23 EJA975 HUT → PWK Jul 23, 23:05 UTCJul 23, 23:50 UTC45m
2026-07-23 EJA975 HUT → PWK Jul 23, 20:05 UTCJul 23, 21:15 UTC1h 10m
2026-07-23 EJA975 HUT → PWK Jul 23, 18:35 UTCJul 23, 18:55 UTC20m
2026-07-23 EJA975 HUT → PWK Jul 23, 15:30 UTCJul 23, 17:30 UTC2h 0m
2026-07-23 EJA975 HUT → PWK Jul 23, 13:20 UTCJul 23, 13:35 UTC15m
2026-07-22 EJA975 HUT → PWK Jul 22, 18:00 UTCJul 22, 19:35 UTC1h 35m
2026-07-22 EJA975 HUT → PWK Jul 22, 16:10 UTCJul 22, 17:00 UTC50m
2026-07-22 EJA975 HUT → PWK Jul 22, 14:05 UTCJul 22, 15:00 UTC55m
2026-07-22 EJA975 HUT → PWK Jul 22, 02:30 UTCJul 22, 03:25 UTC55m
2026-07-22 EJA975 HUT → PWK Jul 22, 00:20 UTCJul 22, 01:20 UTC1h 0m
2026-07-21 EJA975 HUT → PWK Jul 21, 21:10 UTCJul 21, 22:25 UTC1h 15m
2026-07-21 EJA975 HUT → PWK Jul 21, 17:40 UTCJul 21, 18:15 UTC35m
2026-07-20 N975QS - Jul 20, 19:30 UTCJul 21, 03:05 UTC7h 34m
2026-07-20 EJA975 HUT → PWK Jul 20, 02:40 UTCJul 20, 05:10 UTC2h 30m
2026-07-20 EJA975 HUT → PWK Jul 20, 01:30 UTCJul 20, 02:00 UTC30m
2026-07-19 EJA975 HUT → PWK Jul 19, 23:45 UTCJul 20, 00:15 UTC30m
2026-07-19 EJA975 HUT → PWK Jul 19, 16:40 UTCJul 19, 18:35 UTC1h 55m
2026-07-19 EJA975 HUT → PWK Jul 19, 13:45 UTCJul 19, 15:15 UTC1h 30m
2026-07-17 EJA975 HUT → PWK Jul 17, 16:04 UTCJul 17, 18:55 UTC2h 50m
2026-07-15 N975QS - Jul 15, 01:15 UTCJul 15, 01:45 UTC30m
2026-07-13 N975QS - Jul 13, 20:40 UTCJul 13, 22:25 UTC1h 45m
2026-07-13 EJA975 - Jul 13, 17:00 UTCJul 13, 19:35 UTC2h 35m
2026-07-13 EJA975 - Jul 13, 15:15 UTCJul 13, 15:45 UTC30m
2026-07-12 EJA975 - Jul 12, 20:45 UTCJul 12, 21:50 UTC1h 5m
2026-07-12 EJA975 - Jul 12, 16:50 UTCJul 12, 17:50 UTC1h 0m
2026-07-12 EJA975 - Jul 12, 12:55 UTCJul 12, 15:55 UTC3h 0m
2026-07-12 EJA975 - Jul 12, 10:35 UTCJul 12, 11:25 UTC50m
2026-07-12 EJA975 - Jul 12, 03:20 UTCJul 12, 04:05 UTC45m
2026-07-11 EJA975 - Jul 11, 22:35 UTCJul 11, 23:45 UTC1h 10m
2026-07-11 EJA975 - Jul 11, 19:35 UTCJul 11, 21:40 UTC2h 5m
2026-07-11 EJA975 - Jul 11, 17:40 UTCJul 11, 18:10 UTC30m
2026-07-11 EJA975 - Jul 11, 16:15 UTCJul 11, 16:25 UTC10m
2026-07-11 EJA975 - Jul 11, 00:15 UTCJul 11, 00:30 UTC15m
2026-07-10 EJA975 - Jul 10, 20:05 UTCJul 10, 20:25 UTC20m
2026-07-10 EJA975 - Jul 10, 18:30 UTCJul 10, 18:45 UTC15m
2026-07-10 EJA975 - Jul 10, 16:20 UTCJul 10, 17:20 UTC1h 0m
2026-07-02 EJA975 - Jul 2, 20:45 UTCJul 2, 23:10 UTC2h 25m
2026-07-02 EJA975 SJC → CLD Jul 2, 05:05 UTCJul 2, 06:15 UTC1h 10m
2026-07-01 EJA975 - Jul 1, 17:30 UTCJul 1, 21:05 UTC3h 35m
2026-07-01 EJA975 - Jul 1, 15:30 UTCJul 1, 16:10 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 N975QS page for operator, model, and routing details .

Mode-S AD97A7 frequently asked

What is Mode-S code AD97A7?
AD97A7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N975QS.
Where is Mode-S AD97A7 registered?
Mode-S code AD97A7 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 AD97A7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD97A7, octal 53313647, decimal 11,376,551.
What flights does AD97A7 operate?
Mode-S AD97A7 has broadcast 2 distinct callsigns, including EJA975, N975QS.