sensors Mode-S transponder

AD9310

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N974FT · operated by ST LOUIS FLIGHT TRAINING LLC

Hex
AD9310
Octal
53311420
Decimal
11,375,376
Country
US
Tail
N974FT
Type
EV97
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AD9310.

Country allocation

The ICAO 24-bit address AD9310 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
N974FT - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 N974FT - Apr 13, 22:55 UTCApr 13, 23:35 UTC40m
2026-04-13 N974FT - Apr 13, 20:30 UTCApr 13, 21:50 UTC1h 20m

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 N974FT page for operator, model, and routing details .

Mode-S AD9310 frequently asked

What is Mode-S code AD9310?
AD9310 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N974FT.
Where is Mode-S AD9310 registered?
Mode-S code AD9310 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 AD9310 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 AD9310, octal 53311420, decimal 11,375,376.
What flights does AD9310 operate?
Mode-S AD9310 has broadcast 1 distinct callsign, including N974FT.