Apparatus

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sensors Mode-S transponder

A8C0D2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N663QX · EMBRAER ERJ-170-200 (long wing) · operated by HORIZON AIR INDUSTRIES INC

Hex
A8C0D2
Octal
52140322
Decimal
11,059,410
Country
US
Tail
N663QX
Type
E75L
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
796
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S A8C0D2.

Country allocation

The ICAO 24-bit address A8C0D2 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
QXE2437 - 9 2026-07-13
QXE2225 Horizon Air 8 2026-05-29
QXE2333 Horizon Air 7 2026-07-24
QXE2328 - 7 2026-07-06
QXE2287 Horizon Air 7 2026-07-25
QXE2282 - 7 2026-07-14
QXE2249 - 7 2026-07-12
QXE2202 Horizon Air 7 2026-06-17
QXE2112 - 7 2026-07-12
QXE2084 - 7 2026-07-17
QXE2057 Horizon Air 7 2026-07-23
QXE2443 Horizon Air 6 2026-05-22
QXE2365 Horizon Air 6 2026-05-07
QXE2325 Horizon Air 6 2026-06-17
QXE2221 - 6 2026-07-13
QXE2180 Horizon Air 6 2026-07-26
QXE2178 Horizon Air 6 2026-06-16
QXE2139 - 6 2026-07-12
QXE2083 - 6 2026-07-13
QXE2009 - 6 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QXE2180 SAN → SFO Jul 26, 22:25 UTCJul 26, 22:30 UTC5m
2026-07-26 QXE2231 BOI → SJC Jul 26, 19:25 UTCJul 26, 20:35 UTC1h 10m
2026-07-26 QXE2230 LAX → SFO Jul 26, 17:25 UTCJul 26, 18:25 UTC1h 0m
2026-07-26 QXE2012 RDM → SFO Jul 26, 15:30 UTCJul 26, 16:00 UTC30m
2026-07-26 QXE2010 IDA → SEA Jul 26, 06:20 UTCJul 26, 06:50 UTC31m
2026-07-26 QXE2040 HLN → SEA Jul 26, 02:55 UTCJul 26, 03:55 UTC1h 0m
2026-07-26 QXE2037 BOI → BUR Jul 26, 01:05 UTCJul 26, 02:10 UTC1h 5m
2026-07-26 QXE2037 BOI → BUR Jul 26, 01:03 UTCJul 26, 02:09 UTC1h 6m
2026-07-25 QXE2286 PDX → SEA Jul 25, 22:35 UTCJul 25, 23:32 UTC57m
2026-07-25 QXE2286 PDX → SEA Jul 25, 22:25 UTCJul 25, 23:40 UTC1h 15m
2026-07-25 QXE2287 LAX → SFO Jul 25, 20:10 UTCJul 25, 21:30 UTC1h 20m
2026-07-25 QXE2179 SAN → PAE Jul 25, 17:25 UTCJul 25, 18:10 UTC45m
2026-07-25 QXE2072 SEA → FCA Jul 25, 15:50 UTCJul 25, 16:35 UTC45m
2026-07-25 QXE2148 LAX → SFO Jul 25, 12:20 UTCJul 25, 13:55 UTC1h 35m
2026-07-25 QXE2147 SFO → LAX Jul 25, 05:10 UTCJul 25, 06:15 UTC1h 5m
2026-07-25 QXE2308 SJC → PDX Jul 25, 02:15 UTCJul 25, 03:45 UTC1h 30m
2026-07-25 QXE2308 SJC → PDX Jul 25, 02:13 UTCJul 25, 03:41 UTC1h 28m
2026-07-24 QXE2307 GEG → SFO Jul 24, 23:50 UTCJul 25, 00:55 UTC1h 5m
2026-07-24 QXE2205 RNO → LAX Jul 24, 21:10 UTCJul 24, 21:50 UTC40m
2026-07-24 QXE2333 SFO → SAN Jul 24, 17:45 UTCJul 24, 19:20 UTC1h 35m
2026-07-24 QXE2333 SFO → SAN Jul 24, 15:00 UTCJul 24, 16:25 UTC1h 25m
2026-07-24 QXE2023 PHX → SFO Jul 24, 06:55 UTCJul 24, 08:10 UTC1h 15m
2026-07-24 QXE2248 SFO → RDM Jul 24, 03:35 UTCJul 24, 05:50 UTC2h 15m
2026-07-23 QXE2279 LAX → PAE Jul 23, 23:15 UTCJul 24, 01:20 UTC2h 5m
2026-07-23 QXE2279 LAX → PAE Jul 23, 23:11 UTCJul 24, 01:19 UTC2h 8m
2026-07-23 QXE2323 PDX → BZN Jul 23, 20:10 UTCJul 23, 22:05 UTC1h 55m
2026-07-23 QXE2324 BOI → SJC Jul 23, 17:30 UTCJul 23, 19:05 UTC1h 35m
2026-07-23 QXE2324 BOI → SJC Jul 23, 17:33 UTCJul 23, 19:00 UTC1h 27m
2026-07-23 QXE2075 RDM → LAX Jul 23, 14:10 UTCJul 23, 16:05 UTC1h 55m
2026-07-23 QXE2057 SJC → PDX Jul 23, 05:35 UTCJul 23, 06:10 UTC35m
2026-07-23 QXE2107 PAE → SFO Jul 23, 02:50 UTCJul 23, 03:35 UTC45m
2026-07-23 QXE2163 SJC → LAX Jul 23, 01:05 UTCJul 23, 01:50 UTC45m
2026-07-22 QXE2167 LAX → SJC Jul 22, 23:10 UTCJul 22, 23:40 UTC30m
2026-07-22 QXE2167 LAX → SJC Jul 22, 23:09 UTCJul 22, 23:42 UTC33m
2026-07-22 QXE2173 SFO → PDX Jul 22, 21:40 UTCJul 22, 22:10 UTC30m
2026-07-22 QXE2333 SFO → SAN Jul 22, 18:05 UTCJul 22, 19:30 UTC1h 25m
2026-07-22 QXE2333 SFO → SAN Jul 22, 15:05 UTCJul 22, 16:35 UTC1h 30m
2026-07-22 QXE2248 SFO → RDM Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-22 QXE2279 LAX → PAE Jul 22, 01:30 UTCJul 22, 03:45 UTC2h 15m
2026-07-21 QXE2323 PDX → BZN Jul 21, 22:15 UTCJul 22, 00:20 UTC2h 5m
2026-07-21 QXE2323 PDX → BZN Jul 21, 19:50 UTCJul 21, 19:55 UTC5m
2026-07-21 QXE2324 BOI → SJC Jul 21, 17:20 UTCJul 21, 18:30 UTC1h 10m
2026-07-21 QXE2324 BOI → SJC Jul 21, 17:16 UTCJul 21, 18:55 UTC1h 39m
2026-07-21 QXE2075 RDM → LAX Jul 21, 14:05 UTCJul 21, 16:05 UTC2h 0m
2026-07-21 QXE2075 RDM → LAX Jul 21, 14:18 UTCJul 21, 15:46 UTC1h 28m
2026-07-21 QXE2162 SFO → SNA Jul 21, 04:00 UTCJul 21, 05:45 UTC1h 45m
2026-07-21 QXE2162 SFO → SNA Jul 21, 03:59 UTCJul 21, 05:47 UTC1h 48m
2026-07-21 QXE2284 SEA → FCA Jul 21, 01:10 UTCJul 21, 03:00 UTC1h 50m
2026-07-20 QXE2061 SBP → SEA Jul 20, 23:00 UTCJul 21, 00:05 UTC1h 5m
2026-07-20 QXE2055 GEG → SFO Jul 20, 19:55 UTCJul 20, 21:45 UTC1h 50m

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 N663QX page for operator, model, and routing details .

Mode-S A8C0D2 frequently asked

What is Mode-S code A8C0D2?
A8C0D2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N663QX.
Where is Mode-S A8C0D2 registered?
Mode-S code A8C0D2 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 A8C0D2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8C0D2, octal 52140322, decimal 11,059,410.
What flights does A8C0D2 operate?
Mode-S A8C0D2 has broadcast 20 distinct callsigns, including QXE2437, QXE2225, QXE2333, QXE2328, QXE2287.