Apparatus

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sensors Mode-S transponder

A8E0E3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N671QX · operated by HORIZON AIR INDUSTRIES INC

Hex
A8E0E3
Octal
52160343
Decimal
11,067,619
Country
US
Tail
N671QX
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
162
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A8E0E3.

Country allocation

The ICAO 24-bit address A8E0E3 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
QXE2290 Horizon Air 5 2026-07-25
QXE2289 Horizon Air 5 2026-07-25
QXE2415 Horizon Air 4 2026-07-25
QXE2092 Horizon Air 4 2026-07-24
QXE2251 Horizon Air 3 2026-07-25
QXE2143 - 3 2026-07-12
QXE2114 - 3 2026-07-11
QXE2086 Horizon Air 3 2026-07-25
QXE9990 - 2 2026-07-03
QXE2452 - 2 2026-07-18
QXE2387 - 2 2026-07-13
QXE2371 - 2 2026-07-07
QXE2366 - 2 2026-07-12
QXE2353 - 2 2026-07-13
QXE2349 - 2 2026-07-07
QXE2334 - 2 2026-07-16
QXE2321 - 2 2026-07-15
QXE2285 - 2 2026-07-21
QXE2223 Horizon Air 2 2026-07-26
QXE2195 - 2 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QXE2311 YVR → SEA Jul 26, 21:25 UTCJul 26, 22:15 UTC50m
2026-07-26 QXE2013 PDX → BZN Jul 26, 19:10 UTCJul 26, 19:40 UTC30m
2026-07-26 QXE2004 PDX → BOI Jul 26, 17:15 UTCJul 26, 17:50 UTC35m
2026-07-26 QXE2420 PDX → EUG Jul 26, 14:35 UTCJul 26, 15:05 UTC30m
2026-07-26 QXE2043 PDX → SBP Jul 26, 12:30 UTCJul 26, 12:55 UTC25m
2026-07-26 QXE2223 SJC → BOI Jul 26, 04:10 UTCJul 26, 06:00 UTC1h 50m
2026-07-26 QXE2223 SJC → BOI Jul 26, 04:10 UTCJul 26, 05:51 UTC1h 41m
2026-07-26 QXE2296 RNO → LAS Jul 26, 02:20 UTCJul 26, 03:10 UTC50m
2026-07-25 QXE2260 SFO → SNA Jul 25, 23:30 UTCJul 26, 00:10 UTC40m
2026-07-25 QXE2415 SFO → PSP Jul 25, 20:20 UTCJul 25, 22:25 UTC2h 5m
2026-07-25 QXE2415 SFO → PSP Jul 25, 20:17 UTCJul 25, 22:23 UTC2h 6m
2026-07-25 QXE2086 SEA → SBP Jul 25, 17:40 UTCJul 25, 19:20 UTC1h 40m
2026-07-25 QXE2290 MRY → SEA Jul 25, 15:05 UTCJul 25, 16:20 UTC1h 15m
2026-07-25 QXE2289 MFR → SEA Jul 25, 06:15 UTCJul 25, 07:15 UTC1h 0m
2026-07-25 QXE2289 MFR → SEA Jul 25, 06:11 UTCJul 25, 07:13 UTC1h 2m
2026-07-25 QXE2251 SJC → SEA Jul 25, 04:00 UTCJul 25, 04:50 UTC50m
2026-07-24 QXE2092 SJC → BOI Jul 24, 23:45 UTCJul 25, 00:40 UTC55m
2026-07-24 QXE2415 SFO → PSP Jul 24, 20:35 UTCJul 24, 22:40 UTC2h 5m
2026-07-24 QXE2086 SEA → SBP Jul 24, 17:55 UTCJul 24, 19:35 UTC1h 40m
2026-07-24 QXE2290 - Jul 24, 15:40 UTCJul 24, 16:55 UTC1h 15m
2026-07-24 QXE2290 RNO → SAN Jul 24, 15:34 UTCJul 24, 16:50 UTC1h 16m
2026-07-24 QXE2289 MFR → SEA Jul 24, 04:10 UTCJul 24, 05:15 UTC1h 5m
2026-07-24 QXE2251 SJC → SEA Jul 24, 02:30 UTCJul 24, 03:15 UTC45m
2026-07-24 QXE2092 SJC → BOI Jul 24, 00:00 UTCJul 24, 00:50 UTC50m
2026-07-23 QXE2092 SJC → BOI Jul 23, 23:59 UTCJul 24, 00:46 UTC47m
2026-07-23 QXE2415 SFO → PSP Jul 23, 21:05 UTCJul 23, 23:05 UTC2h 0m
2026-07-23 QXE2086 - Jul 23, 18:10 UTCJul 23, 20:05 UTC1h 55m
2026-07-23 QXE2290 - Jul 23, 15:35 UTCJul 23, 16:50 UTC1h 15m
2026-07-23 QXE2290 RNO → SAN Jul 23, 15:29 UTCJul 23, 16:43 UTC1h 14m
2026-07-23 QXE2289 MFR → SEA Jul 23, 05:35 UTCJul 23, 06:40 UTC1h 5m
2026-07-23 QXE2289 MFR → SEA Jul 23, 05:32 UTCJul 23, 06:39 UTC1h 7m
2026-07-23 QXE2251 SJC → SEA Jul 23, 03:55 UTCJul 23, 04:45 UTC50m
2026-07-23 QXE2092 SJC → BOI Jul 23, 01:00 UTCJul 23, 01:55 UTC55m
2026-07-22 QXE2176 AKN → ANC Jul 22, 23:17 UTCJul 22, 23:55 UTC38m
2026-07-22 QXE2176 AKN → ANC Jul 22, 23:20 UTCJul 23, 00:05 UTC45m
2026-07-22 QXE2177 OAK → SEA Jul 22, 20:55 UTCJul 22, 21:30 UTC35m
2026-07-22 QXE2210 SJC → SEA Jul 22, 19:00 UTCJul 22, 19:50 UTC50m
2026-07-22 QXE2208 SEA → SFO Jul 22, 16:30 UTCJul 22, 17:15 UTC45m
2026-07-22 QXE2252 - Jul 22, 14:35 UTCJul 22, 15:20 UTC45m
2026-07-22 QXE2018 SEA → IDA Jul 22, 00:25 UTCJul 22, 01:15 UTC50m
2026-07-21 QXE2028 SJC → AUS Jul 21, 22:35 UTCJul 21, 23:20 UTC45m
2026-07-21 QXE2024 SAN → PAE Jul 21, 20:45 UTCJul 21, 21:40 UTC55m
2026-07-21 QXE2024 SAN → PAE Jul 21, 20:48 UTCJul 21, 21:48 UTC1h 0m
2026-07-21 QXE2416 ANC → FAI Jul 21, 18:45 UTCJul 21, 19:40 UTC55m
2026-07-21 QXE2281 - Jul 21, 16:40 UTCJul 21, 17:35 UTC55m
2026-07-21 QXE2288 OAK → SAN Jul 21, 13:55 UTCJul 21, 15:10 UTC1h 15m
2026-07-21 QXE2285 SAN → OAK Jul 21, 05:05 UTCJul 21, 06:10 UTC1h 5m
2026-07-21 QXE2285 SAN → OAK Jul 21, 05:03 UTCJul 21, 06:08 UTC1h 5m
2026-07-21 QXE2058 SNA → PDX Jul 21, 02:35 UTCJul 21, 03:55 UTC1h 20m
2026-07-21 QXE2058 SNA → PDX Jul 21, 02:34 UTCJul 21, 03:51 UTC1h 17m

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 N671QX page for operator, model, and routing details .

Mode-S A8E0E3 frequently asked

What is Mode-S code A8E0E3?
A8E0E3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N671QX.
Where is Mode-S A8E0E3 registered?
Mode-S code A8E0E3 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 A8E0E3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8E0E3, octal 52160343, decimal 11,067,619.
What flights does A8E0E3 operate?
Mode-S A8E0E3 has broadcast 20 distinct callsigns, including QXE2290, QXE2289, QXE2415, QXE2092, QXE2251.