Apparatus

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sensors Mode-S transponder

A84E0C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N634QX · EMBRAER ERJ-170-200 (long wing) · operated by HORIZON AIR INDUSTRIES INC

Hex
A84E0C
Octal
52047014
Decimal
11,030,028
Country
US
Tail
N634QX
Type
E75L
Broadcasting now · callsign QXE2484 · 25,025 ft
Flights observed
790
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Current position

A84E0C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A84E0C 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
QXE2443 Horizon Air 10 2026-06-07
QXE2003 - 10 2026-07-04
QXE2039 - 9 2026-07-14
QXE2137 - 8 2026-07-07
QXE2074 - 8 2026-07-14
QXE2038 - 8 2026-07-14
QXE2312 - 7 2026-07-10
QXE2277 - 7 2026-07-14
QXE2186 - 7 2026-07-10
QXE2113 - 7 2026-07-10
QXE2078 - 7 2026-06-27
QXE2073 Horizon Air 7 2026-07-14
QXE2050 Horizon Air 7 2026-07-24
QXE2367 Horizon Air 6 2026-06-23
QXE2291 Horizon Air 6 2026-06-23
QXE2281 - 6 2026-07-25
QXE2267 Horizon Air 6 2026-07-10
QXE2226 - 6 2026-07-13
QXE2221 Horizon Air 6 2026-07-23
QXE2183 Horizon Air 6 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QXE2093 PDX → SEA Jul 26, 21:55 UTCJul 26, 23:00 UTC1h 5m
2026-07-26 QXE2188 PDX → SEA Jul 26, 19:10 UTCJul 26, 20:30 UTC1h 20m
2026-07-26 QXE2091 MFR → LAX Jul 26, 17:22 UTCJul 26, 18:25 UTC1h 3m
2026-07-26 QXE2091 MFR → LAX Jul 26, 17:25 UTCJul 26, 18:30 UTC1h 5m
2026-07-26 QXE2253 RNO → SEA Jul 26, 15:30 UTCJul 26, 16:15 UTC45m
2026-07-26 QXE2018 SEA → IDA Jul 26, 00:28 UTCJul 26, 01:19 UTC51m
2026-07-26 QXE2018 SEA → IDA Jul 26, 00:30 UTCJul 26, 01:30 UTC1h 0m
2026-07-25 QXE2028 SJC → AUS Jul 25, 22:30 UTCJul 25, 23:15 UTC45m
2026-07-25 QXE2024 SAN → PAE Jul 25, 20:30 UTCJul 25, 21:30 UTC1h 0m
2026-07-25 QXE2416 ANC → FAI Jul 25, 18:30 UTCJul 25, 19:15 UTC45m
2026-07-25 QXE2281 SAN → LAS Jul 25, 16:22 UTCJul 25, 17:12 UTC50m
2026-07-25 QXE2281 - Jul 25, 16:25 UTCJul 25, 17:15 UTC50m
2026-07-25 QXE2288 OAK → SAN Jul 25, 14:00 UTCJul 25, 15:15 UTC1h 15m
2026-07-25 QXE2288 OAK → SAN Jul 25, 13:55 UTCJul 25, 15:12 UTC1h 17m
2026-07-25 QXE2285 LAX → SJC Jul 25, 06:10 UTCJul 25, 07:15 UTC1h 5m
2026-07-25 QXE2058 SNA → PDX Jul 25, 03:47 UTCJul 25, 05:03 UTC1h 16m
2026-07-25 QXE2058 SNA → PDX Jul 25, 03:55 UTCJul 25, 05:05 UTC1h 10m
2026-07-25 QXE2314 SAN → SFO Jul 25, 00:11 UTCJul 25, 01:14 UTC1h 3m
2026-07-25 QXE2314 SAN → SFO Jul 25, 00:15 UTCJul 25, 01:25 UTC1h 10m
2026-07-24 QXE2050 FAI → ANC Jul 24, 17:40 UTCJul 24, 22:25 UTC4h 45m
2026-07-24 QXE2397 SBA → SEA Jul 24, 14:05 UTCJul 24, 15:55 UTC1h 50m
2026-07-24 QXE2396 SFO → PAE Jul 24, 04:45 UTCJul 24, 06:55 UTC2h 10m
2026-07-24 QXE2396 SFO → PAE Jul 24, 04:46 UTCJul 24, 06:53 UTC2h 7m
2026-07-24 QXE2021 RDM → SFO Jul 24, 01:55 UTCJul 24, 03:00 UTC1h 5m
2026-07-24 QXE2021 RDM → SFO Jul 24, 01:46 UTCJul 24, 02:55 UTC1h 9m
2026-07-23 QXE2221 PDX → OAK Jul 23, 21:35 UTCJul 23, 23:25 UTC1h 50m
2026-07-23 QXE2221 PDX → OAK Jul 23, 21:33 UTCJul 23, 23:43 UTC2h 10m
2026-07-23 QXE2437 PAE → SAN Jul 23, 15:45 UTCJul 23, 18:25 UTC2h 40m
2026-07-23 QXE2189 SAN → PAE Jul 23, 05:00 UTCJul 23, 07:25 UTC2h 25m
2026-07-23 QXE2406 FAI → ANC Jul 23, 02:40 UTCJul 23, 03:55 UTC1h 15m
2026-07-22 QXE2405 SJC → PDX Jul 22, 21:45 UTCJul 22, 23:00 UTC1h 15m
2026-07-22 QXE2052 - Jul 22, 20:15 UTCJul 22, 20:40 UTC25m
2026-07-22 QXE2051 - Jul 22, 18:35 UTCJul 22, 19:10 UTC35m
2026-07-22 QXE2002 YVR → PDX Jul 22, 16:00 UTCJul 22, 16:45 UTC45m
2026-07-22 QXE2128 SEA → SFO Jul 22, 02:45 UTCJul 22, 04:20 UTC1h 35m
2026-07-21 QXE2129 SEA → SFO Jul 21, 23:40 UTCJul 22, 01:35 UTC1h 55m
2026-07-21 QXE2014 SBP → PDX Jul 21, 21:25 UTCJul 21, 22:05 UTC40m
2026-07-21 QXE2005 BFI → YVR Jul 21, 19:30 UTCJul 21, 20:00 UTC30m
2026-07-21 QXE2069 GEG → SEA Jul 21, 17:05 UTCJul 21, 18:00 UTC55m
2026-07-21 QXE2135 BFI → GEG Jul 21, 14:35 UTCJul 21, 15:15 UTC40m
2026-07-21 QXE2135 SEA → GEG Jul 21, 14:33 UTCJul 21, 15:06 UTC33m
2026-07-21 QXE2300 PDX → ONT Jul 21, 12:35 UTCJul 21, 13:15 UTC40m
2026-07-21 QXE2245 - Jul 21, 06:05 UTCJul 21, 06:35 UTC30m
2026-07-21 QXE2017 AUS → SJC Jul 21, 03:55 UTCJul 21, 04:35 UTC40m
2026-07-21 QXE2008 SEA → YVR Jul 21, 01:25 UTCJul 21, 01:55 UTC30m
2026-07-21 QXE2008 SEA → YVR Jul 21, 01:04 UTCJul 21, 01:55 UTC51m
2026-07-20 QXE2097 PSP → SFO Jul 20, 23:15 UTCJul 20, 23:50 UTC35m
2026-07-20 QXE2115 SNA → PAE Jul 20, 21:35 UTCJul 20, 22:10 UTC35m
2026-07-20 QXE2276 LAX → SFO Jul 20, 18:20 UTCJul 20, 19:55 UTC1h 35m
2026-07-20 QXE2276 LAX → SFO Jul 20, 18:15 UTCJul 20, 19:46 UTC1h 31m

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 N634QX page for operator, model, and routing details .

Mode-S A84E0C frequently asked

What is Mode-S code A84E0C?
A84E0C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N634QX.
Where is Mode-S A84E0C registered?
Mode-S code A84E0C 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 A84E0C broadcasting right now?
Yes. Mode-S A84E0C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A84E0C, octal 52047014, decimal 11,030,028.
What flights does A84E0C operate?
Mode-S A84E0C has broadcast 20 distinct callsigns, including QXE2443, QXE2003, QXE2039, QXE2137, QXE2074.