Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8AF98

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N659QS · CESSNA 680 Citation Latitude · operated by NETJETS SALES INC, AIRDEVICE LLC, BDC FLIGHTS LLC, CHIMICO LOGISTICS LLC, MARTIN CRAIG TRUSTEE, MARTING DIANE TRUSTEE

Hex
A8AF98
Octal
52127630
Decimal
11,055,000
Country
US
Tail
N659QS
Type
C68A
No current signal · last broadcast 1d ago
Flights observed
133
Distinct callsigns
2
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A8AF98.

Country allocation

The ICAO 24-bit address A8AF98 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
EJA659 NetJets 123 2026-05-28
N659QS - 10 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 EJA659 TEB → MSP May 28, 21:35 UTCMay 28, 22:55 UTC1h 20m
2026-05-28 EJA659 TEB → MSP May 28, 17:55 UTCMay 28, 20:15 UTC2h 20m
2026-05-28 EJA659 TEB → MSP May 28, 13:40 UTCMay 28, 15:55 UTC2h 15m
2026-05-28 EJA659 TEB → MSP May 28, 12:05 UTCMay 28, 12:25 UTC20m
2026-05-27 EJA659 TEB → MSP May 27, 14:15 UTCMay 27, 15:00 UTC45m
2026-05-27 EJA659 TEB → MSP May 27, 12:30 UTCMay 27, 12:45 UTC15m
2026-05-25 EJA659 TEB → MSP May 25, 18:00 UTCMay 25, 22:05 UTC4h 5m
2026-05-25 EJA659 TEB → MSP May 25, 13:55 UTCMay 25, 15:25 UTC1h 30m
2026-05-24 N659QS - May 24, 18:35 UTCMay 24, 18:55 UTC20m
2026-05-24 N659QS - May 24, 16:15 UTCMay 24, 17:05 UTC50m
2026-05-23 EJA659 TEB → MSP May 23, 22:10 UTCMay 24, 01:35 UTC3h 25m
2026-05-22 EJA659 TEB → MSP May 22, 20:10 UTCMay 22, 20:55 UTC45m
2026-05-22 EJA659 TEB → MSP May 22, 18:50 UTCMay 22, 19:25 UTC35m
2026-05-22 EJA659 TEB → MSP May 22, 16:45 UTCMay 22, 18:00 UTC1h 15m
2026-05-22 EJA659 TEB → MSP May 22, 14:40 UTCMay 22, 15:25 UTC45m
2026-05-21 EJA659 TEB → MSP May 21, 18:40 UTCMay 21, 20:15 UTC1h 35m
2026-05-20 EJA659 TEB → MSP May 20, 22:50 UTCMay 21, 01:05 UTC2h 15m
2026-05-20 EJA659 TEB → MSP May 20, 18:30 UTCMay 20, 20:15 UTC1h 45m
2026-05-20 EJA659 TEB → MSP May 20, 16:30 UTCMay 20, 17:30 UTC1h 0m
2026-05-20 EJA659 TEB → MSP May 20, 14:50 UTCMay 20, 15:20 UTC30m
2026-05-20 EJA659 TEB → MSP May 20, 00:40 UTCMay 20, 02:25 UTC1h 45m
2026-05-19 EJA659 TEB → MSP May 19, 21:45 UTCMay 19, 22:35 UTC50m
2026-05-19 EJA659 TEB → MSP May 19, 18:30 UTCMay 19, 20:20 UTC1h 50m
2026-05-18 EJA659 TEB → MSP May 18, 23:50 UTCMay 19, 02:55 UTC3h 5m
2026-05-18 EJA659 TEB → MSP May 18, 21:10 UTCMay 18, 23:00 UTC1h 50m
2026-05-18 EJA659 TEB → MSP May 18, 18:40 UTCMay 18, 20:20 UTC1h 40m
2026-05-18 EJA659 TEB → MSP May 18, 15:10 UTCMay 18, 15:50 UTC40m
2026-05-18 EJA659 TEB → MSP May 18, 14:05 UTCMay 18, 14:40 UTC35m
2026-05-17 EJA659 TEB → MSP May 17, 21:40 UTCMay 17, 22:25 UTC45m
2026-05-17 EJA659 TEB → MSP May 17, 20:15 UTCMay 17, 20:30 UTC15m
2026-05-17 EJA659 TEB → MSP May 17, 17:45 UTCMay 17, 18:01 UTC15m
2026-05-17 EJA659 TEB → MSP May 17, 13:35 UTCMay 17, 16:50 UTC3h 15m
2026-05-17 EJA659 TEB → MSP May 17, 11:35 UTCMay 17, 12:35 UTC1h 0m
2026-05-16 EJA659 TEB → MSP May 16, 20:35 UTCMay 16, 21:15 UTC40m
2026-05-16 EJA659 TEB → MSP May 16, 18:55 UTCMay 16, 19:10 UTC15m
2026-05-16 EJA659 TEB → MSP May 16, 14:16 UTCMay 16, 15:55 UTC1h 40m
2026-05-16 EJA659 TEB → MSP May 16, 11:11 UTCMay 16, 11:46 UTC35m
2026-05-15 EJA659 TEB → MSP May 15, 22:15 UTCMay 15, 23:05 UTC50m
2026-05-15 EJA659 TEB → MSP May 15, 19:40 UTCMay 15, 20:50 UTC1h 10m
2026-05-15 EJA659 TEB → MSP May 15, 18:20 UTCMay 15, 18:30 UTC10m
2026-05-15 EJA659 TEB → MSP May 15, 14:25 UTCMay 15, 17:00 UTC2h 34m
2026-05-15 EJA659 TEB → MSP May 15, 12:25 UTCMay 15, 12:55 UTC30m
2026-05-13 EJA659 TEB → MSP May 13, 16:25 UTCMay 13, 17:50 UTC1h 25m
2026-05-13 EJA659 TEB → MSP May 13, 14:00 UTCMay 13, 14:45 UTC45m
2026-05-13 EJA659 TEB → MSP May 13, 10:30 UTCMay 13, 11:40 UTC1h 10m
2026-05-12 EJA659 TEB → MSP May 12, 19:10 UTCMay 12, 19:55 UTC45m
2026-05-12 EJA659 TEB → MSP May 12, 17:25 UTCMay 12, 18:20 UTC55m
2026-05-11 EJA659 TEB → MSP May 11, 19:25 UTCMay 11, 21:10 UTC1h 45m
2026-05-11 EJA659 TEB → MSP May 11, 15:00 UTCMay 11, 17:20 UTC2h 20m
2026-05-11 EJA659 TEB → MSP May 11, 13:15 UTCMay 11, 13:50 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 N659QS page for operator, model, and routing details .

Mode-S A8AF98 frequently asked

What is Mode-S code A8AF98?
A8AF98 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N659QS.
Where is Mode-S A8AF98 registered?
Mode-S code A8AF98 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 A8AF98 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8AF98, octal 52127630, decimal 11,055,000.
What flights does A8AF98 operate?
Mode-S A8AF98 has broadcast 2 distinct callsigns, including EJA659, N659QS.