sensors Mode-S transponder

A00CB5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N102FX · operated by FLEXJET LLC

Hex
A00CB5
Octal
50006265
Decimal
10,489,013
Country
US
Tail
N102FX
No current signal · last broadcast 1h ago
Flights observed
5
Distinct callsigns
2
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A00CB5.

Country allocation

The ICAO 24-bit address A00CB5 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 2 distinct

Callsign Airline Flights Last seen
LXJ102 - 4 2026-05-22
N102FX - 1 2026-05-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-05-22 LXJ102 BUF → CGF May 22, 20:30 UTCMay 22, 21:05 UTC35m
2026-05-22 LXJ102 - May 22, 19:30 UTCMay 22, 19:55 UTC25m
2026-05-15 LXJ102 - May 15, 16:55 UTCMay 15, 17:35 UTC40m
2026-05-14 LXJ102 CHS → CGF May 14, 17:00 UTCMay 14, 18:25 UTC1h 25m
2026-05-14 N102FX - May 14, 13:35 UTCMay 14, 13:55 UTC20m

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 N102FX page for operator, model, and routing details .

Mode-S A00CB5 frequently asked

What is Mode-S code A00CB5?
A00CB5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N102FX.
Where is Mode-S A00CB5 registered?
Mode-S code A00CB5 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 A00CB5 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A00CB5, octal 50006265, decimal 10,489,013.
What flights does A00CB5 operate?
Mode-S A00CB5 has broadcast 2 distinct callsigns, including LXJ102, N102FX.