Apparatus

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sensors Mode-S transponder

A89953

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N653QX · EMBRAER ERJ-170-200 (long wing) · operated by HORIZON AIR INDUSTRIES INC

Hex
A89953
Octal
52114523
Decimal
11,049,299
Country
US
Tail
N653QX
Type
E75L
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
851
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S A89953.

Country allocation

The ICAO 24-bit address A89953 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
QXE2039 Horizon Air 11 2026-07-24
QXE2038 Horizon Air 11 2026-07-24
QXE2226 Horizon Air 9 2026-07-23
QXE2103 Horizon Air 9 2026-07-24
QXE2060 - 9 2026-07-24
QXE2144 - 8 2026-06-20
QXE2132 - 8 2026-06-30
QXE2076 - 8 2026-07-04
QXE2015 - 8 2026-07-02
QXE2403 Horizon Air 7 2026-05-04
QXE2277 Horizon Air 7 2026-07-24
QXE2186 Horizon Air 7 2026-06-09
QXE2152 - 7 2026-06-24
QXE2102 Horizon Air 7 2026-07-25
QXE2456 Horizon Air 6 2026-06-13
QXE2217 - 6 2026-07-04
QXE2148 - 6 2026-06-30
QXE2117 - 6 2026-07-05
QXE2097 Horizon Air 6 2026-05-23
QXE2089 Horizon Air 6 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QXE2155 SAN → PAE Jul 26, 21:20 UTCJul 26, 21:35 UTC15m
2026-07-26 QXE2069 SFO → PDX Jul 26, 19:10 UTCJul 26, 19:55 UTC45m
2026-07-26 QXE2069 SFO → PDX Jul 26, 19:03 UTCJul 26, 19:48 UTC45m
2026-07-26 QXE2135 PAE → LAX Jul 26, 17:30 UTCJul 26, 18:05 UTC35m
2026-07-26 QXE2070 SAN → SFO Jul 26, 14:35 UTCJul 26, 15:40 UTC1h 5m
2026-07-26 QXE2201 LAX → LAS Jul 26, 02:55 UTCJul 26, 04:20 UTC1h 25m
2026-07-25 QXE2329 LAS → LAX Jul 25, 23:45 UTCJul 26, 01:25 UTC1h 40m
2026-07-25 QXE2125 SAN → PDX Jul 25, 22:05 UTCJul 25, 22:50 UTC45m
2026-07-25 QXE2209 LAX → SJC Jul 25, 19:45 UTCJul 25, 20:40 UTC55m
2026-07-25 QXE2089 GEG → PDX Jul 25, 17:50 UTCJul 25, 18:40 UTC50m
2026-07-25 QXE2089 GEG → PDX Jul 25, 17:46 UTCJul 25, 18:36 UTC50m
2026-07-25 QXE2398 SMF → SAN Jul 25, 13:05 UTCJul 25, 16:35 UTC3h 30m
2026-07-25 QXE2099 SJC → PDX Jul 25, 04:45 UTCJul 25, 05:25 UTC40m
2026-07-25 QXE2099 SJC → PDX Jul 25, 04:44 UTCJul 25, 05:28 UTC44m
2026-07-25 QXE2085 BIL → SEA Jul 25, 03:17 UTCJul 25, 03:49 UTC32m
2026-07-25 QXE2085 BIL → SEA Jul 25, 03:05 UTCJul 25, 03:55 UTC50m
2026-07-25 QXE2102 SEA → OAK Jul 25, 01:25 UTCJul 25, 02:10 UTC45m
2026-07-24 QXE2103 RDM → SEA Jul 24, 23:50 UTCJul 25, 00:40 UTC50m
2026-07-24 QXE2039 PHX → SFO Jul 24, 21:30 UTCJul 24, 22:25 UTC55m
2026-07-24 QXE2039 PHX → SFO Jul 24, 21:23 UTCJul 24, 22:24 UTC1h 1m
2026-07-24 QXE2038 PHX → SFO Jul 24, 19:30 UTCJul 24, 20:20 UTC50m
2026-07-24 QXE2194 LAS → SAN Jul 24, 17:00 UTCJul 24, 17:45 UTC45m
2026-07-24 QXE2193 SEA → PDX Jul 24, 14:55 UTCJul 24, 15:40 UTC45m
2026-07-24 QXE2060 FAI → ANC Jul 24, 13:00 UTCJul 24, 13:45 UTC45m
2026-07-24 QXE2277 PDX → MCI Jul 24, 07:05 UTCJul 24, 07:55 UTC50m
2026-07-24 QXE2099 SJC → PDX Jul 24, 04:45 UTCJul 24, 05:25 UTC40m
2026-07-24 QXE2085 BIL → SEA Jul 24, 03:10 UTCJul 24, 04:00 UTC50m
2026-07-24 QXE2102 SEA → OAK Jul 24, 01:30 UTCJul 24, 02:15 UTC45m
2026-07-23 QXE2103 RDM → SEA Jul 23, 23:55 UTCJul 24, 00:45 UTC50m
2026-07-23 QXE2039 PHX → SFO Jul 23, 21:45 UTCJul 23, 22:50 UTC1h 5m
2026-07-23 QXE2038 - Jul 23, 19:40 UTCJul 23, 20:40 UTC1h 0m
2026-07-23 QXE2038 - Jul 23, 19:39 UTCJul 23, 20:36 UTC57m
2026-07-23 QXE2033 SJC → SEA Jul 23, 17:55 UTCJul 23, 18:40 UTC45m
2026-07-23 QXE2032 - Jul 23, 15:40 UTCJul 23, 16:30 UTC50m
2026-07-23 QXE2130 LAX → SEA Jul 23, 02:50 UTCJul 23, 04:05 UTC1h 15m
2026-07-23 QXE2226 SMF → SEA Jul 23, 00:35 UTCJul 23, 02:00 UTC1h 25m
2026-07-22 QXE2039 PHX → SFO Jul 22, 22:00 UTCJul 22, 22:55 UTC55m
2026-07-22 QXE2038 - Jul 22, 20:05 UTCJul 22, 21:00 UTC55m
2026-07-22 QXE2038 ANC → DLG Jul 22, 20:03 UTCJul 22, 20:59 UTC56m
2026-07-22 QXE2060 - Jul 22, 13:10 UTCJul 22, 13:55 UTC45m
2026-07-22 QXE2085 BIL → SEA Jul 22, 04:15 UTCJul 22, 04:55 UTC40m
2026-07-22 QXE2102 SEA → OAK Jul 22, 02:20 UTCJul 22, 03:20 UTC1h 0m
2026-07-22 QXE2103 ANC → FAI Jul 22, 00:25 UTCJul 22, 01:10 UTC45m
2026-07-21 QXE2160 SEA → MSO Jul 21, 22:15 UTCJul 21, 22:45 UTC30m
2026-07-21 QXE2160 SEA → MSO Jul 21, 22:13 UTCJul 21, 22:54 UTC41m
2026-07-21 QXE2158 - Jul 21, 20:10 UTCJul 21, 21:00 UTC50m
2026-07-21 QXE9707 ANC → ANC Jul 21, 15:00 UTCJul 21, 18:40 UTC3h 40m
2026-07-21 QXE2192 PDX → ANC Jul 21, 04:50 UTCJul 21, 08:05 UTC3h 15m
2026-07-21 QXE2096 SEA → YYC Jul 21, 02:15 UTCJul 21, 03:25 UTC1h 10m
2026-07-21 QXE2096 SEA → YYC Jul 21, 02:13 UTCJul 21, 03:27 UTC1h 14m

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 N653QX page for operator, model, and routing details .

Mode-S A89953 frequently asked

What is Mode-S code A89953?
A89953 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N653QX.
Where is Mode-S A89953 registered?
Mode-S code A89953 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 A89953 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A89953, octal 52114523, decimal 11,049,299.
What flights does A89953 operate?
Mode-S A89953 has broadcast 20 distinct callsigns, including QXE2039, QXE2038, QXE2226, QXE2103, QXE2060.