sensors Mode-S transponder

A8A82F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N657QX · EMBRAER ERJ-170-200 (long wing) · operated by HORIZON AIR INDUSTRIES INC

Hex
A8A82F
Octal
52124057
Decimal
11,053,103
Country
US
Tail
N657QX
Type
E75L
Transponder active on ground
Flights observed
12
Distinct callsigns
9
Country
US
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S A8A82F.

Country allocation

The ICAO 24-bit address A8A82F 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 9 distinct

Callsign Airline Flights Last seen
QXE2134 Horizon Air 3 2026-04-13
QXE2456 - 2 2026-04-13
QXE2395 - 1 2026-04-12
QXE2269 - 1 2026-04-13
QXE2268 - 1 2026-04-12
QXE2190 Horizon Air 1 2026-04-14
QXE2172 Horizon Air 1 2026-04-14
QXE2093 Horizon Air 1 2026-04-13
QXE2090 - 1 2026-04-12

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 QXE2172 SEA → YKM Apr 14, 06:35 UTCApr 14, 06:45 UTC10m
2026-04-14 QXE2190 PDX → SEA Apr 14, 05:15 UTCApr 14, 05:20 UTC5m
2026-04-13 QXE2093 PDX → SEA Apr 13, 21:55 UTCApr 13, 23:45 UTC1h 50m
2026-04-13 QXE2456 - Apr 13, 19:50 UTCApr 13, 20:20 UTC30m
2026-04-13 QXE2456 - Apr 13, 18:17 UTCApr 13, 20:09 UTC1h 52m
2026-04-13 QXE2134 PSP → PAE Apr 13, 16:15 UTCApr 13, 17:00 UTC45m
2026-04-13 QXE2134 PSP → PAE Apr 13, 15:50 UTCApr 13, 17:00 UTC1h 10m
2026-04-13 QXE2134 PSP → PAE Apr 13, 15:16 UTCApr 13, 17:11 UTC1h 55m
2026-04-13 QXE2269 - Apr 13, 01:10 UTCApr 13, 03:37 UTC2h 27m
2026-04-12 QXE2268 - Apr 12, 23:55 UTCApr 13, 00:00 UTC5m
2026-04-12 QXE2395 - Apr 12, 19:23 UTCApr 12, 20:30 UTC1h 7m
2026-04-12 QXE2090 - Apr 12, 16:48 UTCApr 12, 18:07 UTC1h 19m

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 N657QX page for operator, model, and routing details .

Mode-S A8A82F frequently asked

What is Mode-S code A8A82F?
A8A82F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N657QX.
Where is Mode-S A8A82F registered?
Mode-S code A8A82F 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 A8A82F broadcasting right now?
Mode-S A8A82F is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8A82F, octal 52124057, decimal 11,053,103.
What flights does A8A82F operate?
Mode-S A8A82F has broadcast 9 distinct callsigns, including QXE2134, QXE2456, QXE2395, QXE2269, QXE2268.