sensors Mode-S transponder

A2AF93

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N272T · S-300D2 · operated by WILLIS NORMAN R

Hex
A2AF93
Octal
50527623
Decimal
10,661,779
Country
US
Tail
N272T
No current signal · last broadcast 1h ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A2AF93.

Country allocation

The ICAO 24-bit address A2AF93 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
N272T - 5 2026-04-30

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-30 N272T - Apr 30, 22:25 UTCApr 30, 23:40 UTC1h 15m
2026-04-24 N272T - Apr 24, 19:45 UTCApr 24, 20:00 UTC15m
2026-04-20 N272T - Apr 20, 22:40 UTCApr 20, 23:30 UTC50m
2026-04-17 N272T - Apr 17, 19:40 UTCApr 17, 19:55 UTC15m
2026-04-17 N272T - Apr 17, 18:05 UTCApr 17, 18:20 UTC15m

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 N272T page for operator, model, and routing details .

Mode-S A2AF93 frequently asked

What is Mode-S code A2AF93?
A2AF93 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N272T.
Where is Mode-S A2AF93 registered?
Mode-S code A2AF93 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 A2AF93 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2AF93, octal 50527623, decimal 10,661,779.
What flights does A2AF93 operate?
Mode-S A2AF93 has broadcast 1 distinct callsign, including N272T.