sensors Mode-S transponder

A8D284

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N668FX · GULFSTREAM G650 · operated by FLEXJET LLC

Hex
A8D284
Octal
52151204
Decimal
11,063,940
Country
US
Tail
N668FX
Type
GLF6
Broadcasting now · callsign LXJ668 · 42,300 ft
Flights observed
8
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Current position

A8D284 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A8D284 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 1 distinct

Callsign Airline Flights Last seen
LXJ668 - 8 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 LXJ668 - Apr 13, 16:15 UTCApr 13, 17:15 UTC1h 0m
2026-04-13 LXJ668 - Apr 13, 15:50 UTCApr 13, 17:15 UTC1h 25m
2026-04-13 LXJ668 - Apr 13, 12:20 UTCApr 13, 16:15 UTC3h 55m
2026-04-13 LXJ668 - Apr 13, 12:10 UTCApr 13, 15:50 UTC3h 40m
2026-04-13 LXJ668 - Apr 13, 10:10 UTCApr 13, 10:35 UTC25m
2026-04-13 LXJ668 - Apr 13, 03:20 UTCApr 13, 03:50 UTC30m
2026-04-13 LXJ668 - Apr 13, 00:40 UTCApr 13, 01:40 UTC1h 0m
2026-04-12 LXJ668 - Apr 12, 17:15 UTCApr 12, 19:35 UTC2h 20m

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 N668FX page for operator, model, and routing details .

Mode-S A8D284 frequently asked

What is Mode-S code A8D284?
A8D284 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N668FX.
Where is Mode-S A8D284 registered?
Mode-S code A8D284 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 A8D284 broadcasting right now?
Yes. Mode-S A8D284 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8D284, octal 52151204, decimal 11,063,940.
What flights does A8D284 operate?
Mode-S A8D284 has broadcast 1 distinct callsign, including LXJ668.