sensors Mode-S transponder

AD5A47

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N96EX · PIPER PA-18 Super Cub · operated by EAA AVIATION FOUNDATION INC

Hex
AD5A47
Octal
53255107
Decimal
11,360,839
Country
US
Tail
N96EX
Type
PA18
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 AD5A47.

Country allocation

The ICAO 24-bit address AD5A47 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
N96EX - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 N96EX - Apr 13, 18:45 UTCApr 13, 19:25 UTC40m
2026-04-13 N96EX - Apr 13, 16:55 UTCApr 13, 17:05 UTC10m
2026-04-13 N96EX - Apr 13, 15:55 UTCApr 13, 16:15 UTC20m
2026-04-13 N96EX - Apr 13, 13:05 UTCApr 13, 13:55 UTC50m
2026-04-12 N96EX - Apr 12, 17:15 UTCApr 12, 18:30 UTC1h 15m

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 N96EX page for operator, model, and routing details .

Mode-S AD5A47 frequently asked

What is Mode-S code AD5A47?
AD5A47 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N96EX.
Where is Mode-S AD5A47 registered?
Mode-S code AD5A47 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 AD5A47 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 AD5A47, octal 53255107, decimal 11,360,839.
What flights does AD5A47 operate?
Mode-S AD5A47 has broadcast 1 distinct callsign, including N96EX.