sensors Mode-S transponder

A2384A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N242JW · CESSNA 172 Skyhawk · operated by AVIATION LEASING CO LLC

Hex
A2384A
Octal
50434112
Decimal
10,631,242
Country
US
Tail
N242JW
Type
C172
No current signal · last broadcast 23h ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A2384A.

Country allocation

The ICAO 24-bit address A2384A 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
AUB119 - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 AUB119 - Apr 13, 22:30 UTCApr 13, 23:40 UTC1h 10m
2026-04-13 AUB119 - Apr 13, 19:45 UTCApr 13, 21:00 UTC1h 15m
2026-04-13 AUB119 - Apr 13, 19:00 UTCApr 13, 20:10 UTC1h 10m
2026-04-13 AUB119 - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 AUB119 AUO → AUO Apr 13, 15:15 UTCApr 13, 16:00 UTC45m

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 N242JW page for operator, model, and routing details .

Mode-S A2384A frequently asked

What is Mode-S code A2384A?
A2384A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N242JW.
Where is Mode-S A2384A registered?
Mode-S code A2384A 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 A2384A broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2384A, octal 50434112, decimal 10,631,242.
What flights does A2384A operate?
Mode-S A2384A has broadcast 1 distinct callsign, including AUB119.