sensors Mode-S transponder

A1F025

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N224CX · CESSNA 750 Citation 10 · operated by L8 AVIATION LLC, LAUTRENOE AVIATION LLC

Hex
A1F025
Octal
50370045
Decimal
10,612,773
Country
US
Tail
N224CX
Type
C750
No current signal · last broadcast 2d ago
Flights observed
4
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A1F025.

Country allocation

The ICAO 24-bit address A1F025 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
JTL224 Jetall Holdings 4 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 JTL224 PHL → HWD Apr 13, 02:10 UTCApr 13, 03:15 UTC1h 5m
2026-04-13 JTL224 PHL → HWD Apr 13, 00:20 UTCApr 13, 00:50 UTC30m
2026-04-12 JTL224 PHL → HWD Apr 12, 23:55 UTCApr 13, 00:50 UTC55m
2026-04-12 JTL224 PHL → HWD Apr 12, 19:20 UTCApr 12, 20:15 UTC55m

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 N224CX page for operator, model, and routing details .

Mode-S A1F025 frequently asked

What is Mode-S code A1F025?
A1F025 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N224CX.
Where is Mode-S A1F025 registered?
Mode-S code A1F025 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 A1F025 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F025, octal 50370045, decimal 10,612,773.
What flights does A1F025 operate?
Mode-S A1F025 has broadcast 1 distinct callsign, including JTL224.