sensors Mode-S transponder

AD4D97

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9562H · CESSNA 172 Skyhawk · operated by L & W AIRCRAFT INVESTMENTS LLC

Hex
AD4D97
Octal
53246627
Decimal
11,357,591
Country
US
Tail
N9562H
Type
C172
Broadcasting now · callsign N9562H · 7,200 ft
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Current position

AD4D97 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD4D97 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
N9562H - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 N9562H - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 N9562H TMB → TMB Apr 13, 19:25 UTCApr 13, 20:10 UTC45m
2026-04-13 N9562H TMB → TMB Apr 13, 16:40 UTCApr 13, 17:35 UTC55m
2026-04-13 N9562H TMB → TMB Apr 13, 14:25 UTCApr 13, 15:35 UTC1h 10m
2026-04-13 N9562H - Apr 13, 12:20 UTCApr 13, 12:40 UTC20m
2026-04-13 N9562H - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m

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 N9562H page for operator, model, and routing details .

Mode-S AD4D97 frequently asked

What is Mode-S code AD4D97?
AD4D97 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9562H.
Where is Mode-S AD4D97 registered?
Mode-S code AD4D97 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 AD4D97 broadcasting right now?
Yes. Mode-S AD4D97 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD4D97, octal 53246627, decimal 11,357,591.
What flights does AD4D97 operate?
Mode-S AD4D97 has broadcast 1 distinct callsign, including N9562H.