sensors Mode-S transponder

A8CFAE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N667QX · operated by HORIZON AIR INDUSTRIES INC

Hex
A8CFAE
Octal
52147656
Decimal
11,063,214
Country
US
Tail
N667QX
Type
E75L
Transponder active on ground
Flights observed
14
Distinct callsigns
9
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S A8CFAE.

Country allocation

The ICAO 24-bit address A8CFAE 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
QXE2096 - 3 2026-04-13
QXE2282 - 2 2026-04-13
QXE2108 - 2 2026-04-13
QXE2080 Horizon Air 2 2026-04-13
QXE2218 - 1 2026-04-12
QXE2113 - 1 2026-04-13
QXE2106 - 1 2026-04-13
QXE2079 - 1 2026-04-13
QXE2076 - 1 2026-04-14

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 QXE2076 SAN → LAS Apr 14, 05:20 UTCApr 14, 06:01 UTC41m
2026-04-13 QXE2106 - Apr 13, 23:05 UTCApr 13, 23:45 UTC40m
2026-04-13 QXE2113 - Apr 13, 20:42 UTCApr 13, 21:23 UTC41m
2026-04-13 QXE2282 PHX → SAN Apr 13, 18:30 UTCApr 13, 19:40 UTC1h 10m
2026-04-13 QXE2282 - Apr 13, 16:50 UTCApr 13, 17:40 UTC50m
2026-04-13 QXE2079 PHX → SAN Apr 13, 14:30 UTCApr 13, 15:25 UTC55m
2026-04-13 QXE2080 ANC → PDX Apr 13, 06:13 UTCApr 13, 06:54 UTC41m
2026-04-13 QXE2080 ANC → PDX Apr 13, 05:51 UTCApr 13, 06:32 UTC41m
2026-04-13 QXE2096 - Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 QXE2096 - Apr 13, 03:55 UTCApr 13, 04:40 UTC45m
2026-04-13 QXE2096 - Apr 13, 02:52 UTCApr 13, 04:42 UTC1h 50m
2026-04-13 QXE2108 - Apr 13, 00:20 UTCApr 13, 01:45 UTC1h 25m
2026-04-12 QXE2108 - Apr 12, 23:55 UTCApr 13, 01:45 UTC1h 50m
2026-04-12 QXE2218 - Apr 12, 17:50 UTCApr 12, 19:35 UTC1h 45m

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 N667QX page for operator, model, and routing details .

Mode-S A8CFAE frequently asked

What is Mode-S code A8CFAE?
A8CFAE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N667QX.
Where is Mode-S A8CFAE registered?
Mode-S code A8CFAE 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 A8CFAE broadcasting right now?
Mode-S A8CFAE 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 A8CFAE, octal 52147656, decimal 11,063,214.
What flights does A8CFAE operate?
Mode-S A8CFAE has broadcast 9 distinct callsigns, including QXE2096, QXE2282, QXE2108, QXE2080, QXE2218.