sensors Mode-S transponder

A86E1D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N642QX · EMBRAER ERJ-170-200 (long wing) · operated by HORIZON AIR INDUSTRIES INC

Hex
A86E1D
Octal
52067035
Decimal
11,038,237
Country
US
Tail
N642QX
Type
E75L
No current signal · last broadcast 22h ago
Flights observed
14
Distinct callsigns
10
Country
US
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S A86E1D.

Country allocation

The ICAO 24-bit address A86E1D 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 10 distinct

Callsign Airline Flights Last seen
QXE2111 - 3 2026-04-13
QXE2181 Horizon Air 2 2026-04-13
QXE2062 - 2 2026-04-14
QXE2353 - 1 2026-04-13
QXE2311 - 1 2026-04-12
QXE2295 - 1 2026-04-13
QXE2280 - 1 2026-04-13
QXE2112 - 1 2026-04-13
QXE2087 - 1 2026-04-12
QXE2053 Horizon Air 1 2026-04-12

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 QXE2062 - Apr 14, 05:41 UTCApr 14, 06:30 UTC49m
2026-04-14 QXE2062 - Apr 14, 06:16 UTCApr 14, 07:07 UTC51m
2026-04-13 QXE2112 - Apr 13, 21:55 UTCApr 13, 23:20 UTC1h 25m
2026-04-13 QXE2181 SEA → GEG Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 QXE2181 SEA → GEG Apr 13, 18:35 UTCApr 13, 20:10 UTC1h 35m
2026-04-13 QXE2353 - Apr 13, 16:17 UTCApr 13, 17:48 UTC1h 31m
2026-04-13 QXE2280 - Apr 13, 13:25 UTCApr 13, 14:15 UTC50m
2026-04-13 QXE2111 - Apr 13, 04:20 UTCApr 13, 05:50 UTC1h 30m
2026-04-13 QXE2111 - Apr 13, 03:55 UTCApr 13, 05:50 UTC1h 55m
2026-04-13 QXE2111 - Apr 13, 03:27 UTCApr 13, 05:24 UTC1h 57m
2026-04-13 QXE2295 - Apr 13, 00:57 UTCApr 13, 02:04 UTC1h 7m
2026-04-12 QXE2053 PDX → SEA Apr 12, 23:55 UTCApr 13, 00:10 UTC15m
2026-04-12 QXE2311 MEV → MEV Apr 12, 20:18 UTCApr 12, 21:25 UTC1h 7m
2026-04-12 QXE2087 - Apr 12, 18:01 UTCApr 12, 19:10 UTC1h 9m

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 N642QX page for operator, model, and routing details .

Mode-S A86E1D frequently asked

What is Mode-S code A86E1D?
A86E1D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N642QX.
Where is Mode-S A86E1D registered?
Mode-S code A86E1D 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 A86E1D broadcasting right now?
No active broadcast right now. Last signal was 22h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A86E1D, octal 52067035, decimal 11,038,237.
What flights does A86E1D operate?
Mode-S A86E1D has broadcast 10 distinct callsigns, including QXE2111, QXE2181, QXE2062, QXE2353, QXE2311.