sensors Mode-S transponder

A2A0FF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N269FX · EMBRAER EMB545 Praetor 500 · operated by FLEXJET LLC

Hex
A2A0FF
Octal
50520377
Decimal
10,658,047
Country
US
Tail
N269FX
Type
E545
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A2A0FF.

Country allocation

The ICAO 24-bit address A2A0FF 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
LXJ269 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 LXJ269 - Apr 13, 23:35 UTCApr 13, 23:45 UTC10m
2026-04-13 LXJ269 - Apr 13, 19:50 UTCApr 13, 22:35 UTC2h 45m
2026-04-13 LXJ269 - Apr 13, 18:25 UTCApr 13, 20:10 UTC1h 45m
2026-04-13 LXJ269 - Apr 13, 16:15 UTCApr 13, 16:35 UTC20m
2026-04-13 LXJ269 - Apr 13, 15:50 UTCApr 13, 16:35 UTC45m
2026-04-13 LXJ269 - Apr 13, 14:40 UTCApr 13, 16:15 UTC1h 35m

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 N269FX page for operator, model, and routing details .

Mode-S A2A0FF frequently asked

What is Mode-S code A2A0FF?
A2A0FF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N269FX.
Where is Mode-S A2A0FF registered?
Mode-S code A2A0FF 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 A2A0FF broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2A0FF, octal 50520377, decimal 10,658,047.
What flights does A2A0FF operate?
Mode-S A2A0FF has broadcast 1 distinct callsign, including LXJ269.