Apparatus

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sensors Mode-S transponder

A8AF9D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N659QX · operated by HORIZON AIR INDUSTRIES INC

Hex
A8AF9D
Octal
52127635
Decimal
11,055,005
Country
US
Tail
N659QX
Type
E75L
Broadcasting now · callsign QXE2334 · 36,000 ft
Flights observed
552
Distinct callsigns
20
Country
US
Last broadcast
11m ago

Current position

A8AF9D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8AF9D 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 20 distinct

Callsign Airline Flights Last seen
QXE2180 Horizon Air 9 2026-07-11
QXE2027 - 8 2026-07-02
QXE2407 - 7 2026-07-12
QXE2264 - 7 2026-07-11
QXE2030 - 7 2026-07-12
QXE9988 Horizon Air 6 2026-06-26
QXE2444 Horizon Air 6 2026-05-20
QXE2302 - 6 2026-07-06
QXE2376 Horizon Air 5 2026-07-11
QXE2375 - 5 2026-07-11
QXE2278 - 5 2026-06-29
QXE2276 Horizon Air 5 2026-06-11
QXE2109 Horizon Air 5 2026-06-03
QXE2074 - 5 2026-07-01
QXE2055 - 5 2026-06-19
QXE2028 - 5 2026-07-13
QXE2426 Horizon Air 4 2026-05-20
QXE2389 Horizon Air 4 2026-06-06
QXE2347 - 4 2026-07-05
QXE2344 Horizon Air 4 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QXE2334 - Jul 14, 02:45 UTCJul 14, 03:15 UTC30m
2026-07-13 QXE2028 PHX → SAN Jul 13, 23:55 UTCJul 14, 00:45 UTC50m
2026-07-13 QXE2024 SAN → PHX Jul 13, 21:50 UTCJul 13, 22:50 UTC1h 0m
2026-07-13 QXE2210 - Jul 13, 19:40 UTCJul 13, 20:35 UTC55m
2026-07-13 QXE2210 FAT → SAN Jul 13, 19:36 UTCJul 13, 20:25 UTC49m
2026-07-13 QXE2208 - Jul 13, 17:25 UTCJul 13, 17:35 UTC10m
2026-07-13 QXE2208 SAN → FAT Jul 13, 16:50 UTCJul 13, 17:10 UTC20m
2026-07-13 QXE2208 - Jul 13, 16:50 UTCJul 13, 17:35 UTC45m
2026-07-13 QXE2252 SEA → RNO Jul 13, 14:30 UTCJul 13, 15:15 UTC45m
2026-07-13 QXE2252 SEA → RNO Jul 13, 14:28 UTCJul 13, 15:13 UTC45m
2026-07-13 QXE2305 - Jul 13, 06:25 UTCJul 13, 07:20 UTC55m
2026-07-13 QXE2305 SAN → LAS Jul 13, 06:24 UTCJul 13, 07:16 UTC52m
2026-07-13 QXE2342 - Jul 13, 03:15 UTCJul 13, 05:20 UTC2h 5m
2026-07-13 QXE2026 - Jul 13, 00:45 UTCJul 13, 02:15 UTC1h 30m
2026-07-12 QXE2093 - Jul 12, 21:35 UTCJul 12, 23:50 UTC2h 15m
2026-07-12 QXE2333 SLC → PDX Jul 12, 17:45 UTCJul 12, 19:10 UTC1h 25m
2026-07-12 QXE2333 - Jul 12, 14:55 UTCJul 12, 16:25 UTC1h 30m
2026-07-12 QXE2407 GEG → PDX Jul 12, 02:45 UTCJul 12, 03:35 UTC50m
2026-07-12 QXE2030 - Jul 12, 01:00 UTCJul 12, 01:50 UTC50m
2026-07-12 QXE2030 BOI → GEG Jul 12, 00:59 UTCJul 12, 01:46 UTC47m
2026-07-11 QXE2264 GEG → BOI Jul 11, 23:30 UTCJul 12, 00:15 UTC45m
2026-07-11 QXE2180 SAN → SFO Jul 11, 22:05 UTCJul 11, 22:40 UTC35m
2026-07-11 QXE2376 SMF → SEA Jul 11, 18:55 UTCJul 11, 19:15 UTC20m
2026-07-11 QXE2376 SMF → SEA Jul 11, 18:50 UTCJul 11, 20:28 UTC1h 38m
2026-07-11 QXE2375 SEA → FAT Jul 11, 16:06 UTCJul 11, 18:17 UTC2h 11m
2026-07-11 QXE2375 - Jul 11, 16:10 UTCJul 11, 17:55 UTC1h 45m
2026-07-11 QXE2011 - Jul 11, 13:20 UTCJul 11, 13:45 UTC25m
2026-07-11 QXE2228 PAE → SFO Jul 11, 05:05 UTCJul 11, 05:55 UTC50m
2026-07-11 QXE2407 GEG → PDX Jul 11, 02:55 UTCJul 11, 03:45 UTC50m
2026-07-11 QXE2030 GEG → SFO Jul 11, 01:15 UTCJul 11, 02:00 UTC45m
2026-07-10 QXE2264 - Jul 10, 23:30 UTCJul 11, 00:25 UTC55m
2026-07-10 QXE2180 SAN → SFO Jul 10, 21:50 UTCJul 10, 22:30 UTC40m
2026-07-10 QXE2235 - Jul 10, 19:20 UTCJul 10, 20:20 UTC1h 0m
2026-07-10 QXE2230 SEA → BOI Jul 10, 17:10 UTCJul 10, 18:10 UTC1h 0m
2026-07-10 QXE2012 YVR → SEA Jul 10, 15:20 UTCJul 10, 15:50 UTC30m
2026-07-10 QXE2228 PAE → SFO Jul 10, 04:55 UTCJul 10, 05:50 UTC55m
2026-07-10 QXE2407 GEG → PDX Jul 10, 02:57 UTCJul 10, 03:29 UTC32m
2026-07-10 QXE2407 GEG → PDX Jul 10, 02:50 UTCJul 10, 03:35 UTC45m
2026-07-10 QXE2030 GEG → SFO Jul 10, 01:05 UTCJul 10, 01:50 UTC45m
2026-07-09 QXE2061 SBP → SEA Jul 9, 23:10 UTCJul 10, 00:05 UTC55m
2026-07-09 QXE2061 SBP → SEA Jul 9, 23:06 UTCJul 10, 00:01 UTC55m
2026-07-09 QXE2000 - Jul 9, 21:10 UTCJul 9, 21:35 UTC25m
2026-07-09 QXE2001 - Jul 9, 19:35 UTCJul 9, 19:55 UTC20m
2026-07-09 QXE2001 SEA → YKM Jul 9, 19:35 UTCJul 9, 19:57 UTC22m
2026-07-09 QXE2171 - Jul 9, 17:50 UTCJul 9, 18:25 UTC35m
2026-07-09 QXE2195 SEA → BIL Jul 9, 16:14 UTCJul 9, 16:40 UTC26m
2026-07-09 QXE2195 SEA → BIL Jul 9, 16:10 UTCJul 9, 16:40 UTC30m
2026-07-09 QXE2418 EUG → PDX Jul 9, 14:15 UTCJul 9, 14:50 UTC35m
2026-07-09 QXE2417 - Jul 9, 04:55 UTCJul 9, 05:25 UTC30m
2026-07-09 QXE2138 - Jul 9, 02:50 UTCJul 9, 03:50 UTC1h 0m

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 N659QX page for operator, model, and routing details .

Mode-S A8AF9D frequently asked

What is Mode-S code A8AF9D?
A8AF9D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N659QX.
Where is Mode-S A8AF9D registered?
Mode-S code A8AF9D 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 A8AF9D broadcasting right now?
Yes. Mode-S A8AF9D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8AF9D, octal 52127635, decimal 11,055,005.
What flights does A8AF9D operate?
Mode-S A8AF9D has broadcast 20 distinct callsigns, including QXE2180, QXE2027, QXE2407, QXE2264, QXE2030.