Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A8B5AD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N660QX · EMBRAER ERJ-170-200 (long wing) · operated by HORIZON AIR INDUSTRIES INC

Hex
A8B5AD
Octal
52132655
Decimal
11,056,557
Country
US
Tail
N660QX
Type
E75L
No current signal · last broadcast 11m ago
Flights observed
584
Distinct callsigns
20
Country
US
Last broadcast
11m ago

Last known position

Most recent position reported by Mode-S A8B5AD.

Country allocation

The ICAO 24-bit address A8B5AD 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
QXE2179 - 12 2026-07-04
QXE2130 Horizon Air 10 2026-07-04
QXE2060 - 10 2026-07-05
QXE2050 Horizon Air 10 2026-06-17
QXE2226 - 9 2026-07-04
QXE2038 Horizon Air 9 2026-07-05
QXE2158 - 8 2026-07-05
QXE2255 - 7 2026-06-28
QXE2250 - 7 2026-06-30
QXE2410 Horizon Air 6 2026-05-27
QXE2160 - 6 2026-07-05
QXE2039 Horizon Air 6 2026-07-06
QXE2037 Horizon Air 6 2026-07-09
QXE2026 - 6 2026-06-25
QXE2331 - 5 2026-06-29
QXE2277 - 5 2026-07-05
QXE2269 - 5 2026-07-12
QXE2241 - 5 2026-07-11
QXE2175 - 5 2026-06-28
QXE2145 - 5 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QXE2107 MFR → PDX Jul 14, 02:40 UTCJul 14, 03:15 UTC35m
2026-07-14 QXE2163 - Jul 14, 01:10 UTCJul 14, 01:50 UTC40m
2026-07-13 QXE2003 - Jul 13, 23:15 UTCJul 14, 00:00 UTC45m
2026-07-13 QXE2225 - Jul 13, 21:25 UTCJul 13, 22:10 UTC45m
2026-07-13 QXE2298 OAK → PDX Jul 13, 19:10 UTCJul 13, 20:20 UTC1h 10m
2026-07-13 QXE2036 - Jul 13, 03:01 UTCJul 13, 04:35 UTC1h 35m
2026-07-13 QXE2127 - Jul 13, 00:55 UTCJul 13, 01:50 UTC55m
2026-07-12 QXE2206 - Jul 12, 22:10 UTCJul 12, 23:25 UTC1h 15m
2026-07-12 QXE2206 PDX → RNO Jul 12, 22:10 UTCJul 12, 23:21 UTC1h 11m
2026-07-12 QXE2269 - Jul 12, 17:35 UTCJul 12, 20:05 UTC2h 30m
2026-07-12 QXE2269 ABQ → PDX Jul 12, 17:32 UTCJul 12, 20:04 UTC2h 32m
2026-07-12 QXE2268 PDX → ABQ Jul 12, 14:01 UTCJul 12, 16:35 UTC2h 35m
2026-07-12 QXE2043 - Jul 12, 12:25 UTCJul 12, 12:50 UTC25m
2026-07-12 QXE2094 SEA → RDM Jul 12, 06:05 UTCJul 12, 06:50 UTC45m
2026-07-12 QXE2309 - Jul 12, 02:30 UTCJul 12, 03:25 UTC55m
2026-07-12 QXE2293 SEA → PUW Jul 12, 00:50 UTCJul 12, 01:30 UTC40m
2026-07-11 QXE2275 - Jul 11, 22:50 UTCJul 11, 23:10 UTC20m
2026-07-11 QXE2155 - Jul 11, 21:05 UTCJul 11, 21:40 UTC35m
2026-07-11 QXE2241 - Jul 11, 18:50 UTCJul 11, 19:10 UTC20m
2026-07-11 QXE2048 - Jul 11, 17:10 UTCJul 11, 17:35 UTC25m
2026-07-11 QXE2048 SEA → YYJ Jul 11, 17:09 UTCJul 11, 17:37 UTC28m
2026-07-11 QXE2138 - Jul 11, 02:50 UTCJul 11, 04:01 UTC1h 10m
2026-07-11 QXE2123 - Jul 11, 00:05 UTCJul 11, 00:55 UTC50m
2026-07-10 QXE2119 GEG → SEA Jul 10, 21:45 UTCJul 10, 22:25 UTC40m
2026-07-10 QXE2020 - Jul 10, 18:30 UTCJul 10, 20:45 UTC2h 15m
2026-07-10 QXE2273 PDX → ONT Jul 10, 15:10 UTCJul 10, 17:35 UTC2h 25m
2026-07-10 QXE2272 - Jul 10, 02:15 UTCJul 10, 04:30 UTC2h 15m
2026-07-09 QXE2019 SEA → PDX Jul 9, 22:40 UTCJul 10, 01:00 UTC2h 20m
2026-07-09 QXE2019 SEA → PDX Jul 9, 22:40 UTCJul 10, 01:00 UTC2h 20m
2026-07-09 QXE2349 SEA → GEG Jul 9, 21:15 UTCJul 9, 21:55 UTC40m
2026-07-09 QXE2262 GEG → SEA Jul 9, 19:05 UTCJul 9, 19:45 UTC40m
2026-07-09 QXE2200 RDM → SEA Jul 9, 17:30 UTCJul 9, 18:10 UTC40m
2026-07-09 QXE2452 MFR → SEA Jul 9, 13:10 UTCJul 9, 14:10 UTC1h 0m
2026-07-09 QXE2461 SEA → MFR Jul 9, 05:50 UTCJul 9, 06:45 UTC55m
2026-07-09 QXE2040 HLN → SEA Jul 9, 03:05 UTCJul 9, 04:05 UTC1h 0m
2026-07-09 QXE2037 BOI → BUR Jul 9, 01:05 UTCJul 9, 02:10 UTC1h 5m
2026-07-09 QXE2037 BOI → BUR Jul 9, 01:05 UTCJul 9, 02:07 UTC1h 2m
2026-07-08 QXE2015 - Jul 8, 22:50 UTCJul 8, 23:20 UTC30m
2026-07-08 QXE2006 SEA → YVR Jul 8, 21:05 UTCJul 8, 21:35 UTC30m
2026-07-08 QXE2145 YYC → SEA Jul 8, 18:00 UTCJul 8, 19:15 UTC1h 15m
2026-07-08 QXE2144 SEA → YYC Jul 8, 15:30 UTCJul 8, 16:40 UTC1h 10m
2026-07-08 QXE2011 YVR → SEA Jul 8, 13:15 UTCJul 8, 13:45 UTC30m
2026-07-08 QXE2010 - Jul 8, 06:25 UTCJul 8, 06:50 UTC25m
2026-07-08 QXE2010 SEA → YVR Jul 8, 06:22 UTCJul 8, 06:53 UTC31m
2026-07-08 QXE2066 SBP → SEA Jul 8, 02:40 UTCJul 8, 04:35 UTC1h 55m
2026-07-07 QXE2064 PDX → SEA Jul 7, 23:50 UTCJul 8, 01:50 UTC2h 0m
2026-07-07 QXE2275 - Jul 7, 22:05 UTCJul 7, 22:40 UTC35m
2026-07-07 QXE2275 EAT → SEA Jul 7, 22:03 UTCJul 7, 22:25 UTC22m
2026-07-07 QXE2155 - Jul 7, 20:40 UTCJul 7, 20:55 UTC15m
2026-07-07 QXE2155 SEA → EAT Jul 7, 20:39 UTCJul 7, 21:01 UTC22m

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 N660QX page for operator, model, and routing details .

Mode-S A8B5AD frequently asked

What is Mode-S code A8B5AD?
A8B5AD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N660QX.
Where is Mode-S A8B5AD registered?
Mode-S code A8B5AD 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 A8B5AD broadcasting right now?
No active broadcast right now. Last signal was 11m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8B5AD, octal 52132655, decimal 11,056,557.
What flights does A8B5AD operate?
Mode-S A8B5AD has broadcast 20 distinct callsigns, including QXE2179, QXE2130, QXE2060, QXE2050, QXE2226.