Apparatus

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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 Jul 26, 21:30 UTC
Flights observed
274
Distinct callsigns
3
Country
US
Last broadcast
Jul 26, 21:30 UTC

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 3 distinct

Callsign Airline Flights Last seen
EJA659 NetJets 253 2026-07-26
N659QS - 19 2026-07-26
EJA2633 NetJets 2 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N659QS - Jul 26, 21:10 UTCJul 26, 21:30 UTC20m
2026-07-26 EJA659 TEB → MSP Jul 26, 19:05 UTCJul 26, 20:00 UTC55m
2026-07-26 EJA659 TEB → MSP Jul 26, 16:45 UTCJul 26, 17:35 UTC50m
2026-07-26 EJA659 TEB → MSP Jul 26, 13:55 UTCJul 26, 15:25 UTC1h 30m
2026-07-25 EJA659 TEB → MSP Jul 25, 22:30 UTCJul 26, 00:00 UTC1h 30m
2026-07-25 EJA659 TEB → MSP Jul 25, 19:15 UTCJul 25, 21:40 UTC2h 25m
2026-07-25 EJA659 TEB → MSP Jul 25, 14:00 UTCJul 25, 17:50 UTC3h 50m
2026-07-24 EJA659 TEB → MSP Jul 24, 21:50 UTCJul 24, 22:10 UTC20m
2026-07-24 EJA659 TEB → MSP Jul 24, 19:15 UTCJul 24, 20:55 UTC1h 40m
2026-07-24 EJA659 TEB → MSP Jul 24, 16:20 UTCJul 24, 17:30 UTC1h 10m
2026-07-24 EJA659 TEB → MSP Jul 24, 14:20 UTCJul 24, 14:45 UTC25m
2026-07-24 EJA659 TEB → MSP Jul 24, 12:35 UTCJul 24, 13:25 UTC50m
2026-07-24 EJA659 TEB → MSP Jul 24, 02:20 UTCJul 24, 02:45 UTC25m
2026-07-24 EJA659 TEB → MSP Jul 24, 00:10 UTCJul 24, 01:45 UTC1h 35m
2026-07-23 EJA659 TEB → MSP Jul 23, 22:05 UTCJul 23, 22:35 UTC30m
2026-07-23 EJA659 TEB → MSP Jul 23, 20:10 UTCJul 23, 20:50 UTC40m
2026-07-23 EJA659 - Jul 23, 14:40 UTCJul 23, 15:25 UTC45m
2026-07-23 EJA659 - Jul 23, 11:25 UTCJul 23, 11:50 UTC25m
2026-07-22 EJA659 - Jul 22, 22:35 UTCJul 23, 01:05 UTC2h 30m
2026-07-22 EJA659 - Jul 22, 21:45 UTCJul 22, 22:10 UTC25m
2026-07-22 EJA659 - Jul 22, 19:50 UTCJul 22, 20:40 UTC50m
2026-07-17 EJA659 - Jul 17, 18:34 UTCJul 17, 21:55 UTC3h 20m
2026-07-17 EJA659 - Jul 17, 16:15 UTCJul 17, 16:44 UTC30m
2026-07-17 EJA659 - Jul 17, 14:00 UTCJul 17, 15:20 UTC1h 20m
2026-07-17 EJA659 - Jul 17, 12:25 UTCJul 17, 13:00 UTC35m
2026-07-16 EJA659 TPA → HPN Jul 16, 19:55 UTCJul 16, 23:25 UTC3h 30m
2026-07-16 EJA659 - Jul 16, 18:19 UTCJul 16, 18:25 UTC5m
2026-07-16 EJA659 - Jul 16, 15:25 UTCJul 16, 17:35 UTC2h 10m
2026-07-16 EJA659 BED → HAR Jul 16, 12:25 UTCJul 16, 13:25 UTC1h 0m
2026-07-16 EJA659 - Jul 16, 00:10 UTCJul 16, 00:45 UTC35m
2026-07-15 EJA659 - Jul 15, 21:25 UTCJul 15, 21:45 UTC20m
2026-07-15 EJA659 - Jul 15, 18:20 UTCJul 15, 18:55 UTC35m
2026-07-15 EJA659 - Jul 15, 15:05 UTCJul 15, 17:50 UTC2h 45m
2026-07-15 EJA659 - Jul 15, 12:15 UTCJul 15, 13:40 UTC1h 25m
2026-07-14 EJA659 DFW → PDK Jul 14, 22:20 UTCJul 15, 00:15 UTC1h 54m
2026-07-14 EJA659 - Jul 14, 20:00 UTCJul 14, 20:15 UTC15m
2026-07-14 EJA659 - Jul 14, 14:15 UTCJul 14, 15:50 UTC1h 35m
2026-07-14 EJA659 - Jul 14, 12:00 UTCJul 14, 12:15 UTC15m
2026-07-14 EJA659 - Jul 14, 03:35 UTCJul 14, 05:00 UTC1h 25m
2026-07-14 EJA659 SLC → APC Jul 14, 00:15 UTCJul 14, 01:40 UTC1h 25m
2026-07-13 EJA659 - Jul 13, 22:25 UTCJul 13, 23:35 UTC1h 10m
2026-07-13 EJA659 - Jul 13, 19:30 UTCJul 13, 20:25 UTC55m
2026-07-13 EJA659 - Jul 13, 17:15 UTCJul 13, 18:10 UTC55m
2026-07-13 EJA659 - Jul 13, 04:30 UTCJul 13, 04:45 UTC15m
2026-07-13 EJA659 - Jul 13, 00:20 UTCJul 13, 03:25 UTC3h 5m
2026-07-12 EJA659 - Jul 12, 20:15 UTCJul 12, 23:10 UTC2h 55m
2026-07-12 EJA659 - Jul 12, 18:40 UTCJul 12, 19:05 UTC25m
2026-07-12 EJA659 - Jul 12, 01:10 UTCJul 12, 03:50 UTC2h 40m
2026-07-11 EJA659 - Jul 11, 22:25 UTCJul 11, 22:35 UTC10m
2026-07-11 N659QS SJO → MIA Jul 11, 18:50 UTCJul 11, 21:30 UTC2h 40m

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 Jul 26, 21:30 UTC.
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 3 distinct callsigns, including EJA659, N659QS, EJA2633.