sensors Mode-S transponder

A5B42F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N467FX · GULFSTREAM 4 · operated by FLEXJET LLC

Hex
A5B42F
Octal
51332057
Decimal
10,859,567
Country
US
Tail
N467FX
Type
GLF4
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A5B42F.

Country allocation

The ICAO 24-bit address A5B42F 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
LXJ467 - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 LXJ467 DCA → BOS Apr 13, 18:15 UTCApr 13, 19:20 UTC1h 5m
2026-04-13 LXJ467 - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 LXJ467 - Apr 13, 15:30 UTCApr 13, 16:00 UTC30m
2026-04-13 LXJ467 - Apr 13, 12:25 UTCApr 13, 12:55 UTC30m
2026-04-12 LXJ467 - Apr 12, 19:40 UTCApr 12, 20:15 UTC35m

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 N467FX page for operator, model, and routing details .

Mode-S A5B42F frequently asked

What is Mode-S code A5B42F?
A5B42F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N467FX.
Where is Mode-S A5B42F registered?
Mode-S code A5B42F 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 A5B42F 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 A5B42F, octal 51332057, decimal 10,859,567.
What flights does A5B42F operate?
Mode-S A5B42F has broadcast 1 distinct callsign, including LXJ467.