sensors Mode-S transponder

A2B0FE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2725N · CESSNA 441 Conquest · operated by WISCONSIN AVIATION FOUR LAKES INC

Hex
A2B0FE
Octal
50530376
Decimal
10,662,142
Country
US
Tail
N2725N
Type
C441
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 A2B0FE.

Country allocation

The ICAO 24-bit address A2B0FE 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
N2725N - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 N2725N - Apr 13, 21:05 UTCApr 13, 21:30 UTC25m
2026-04-13 N2725N - Apr 13, 18:50 UTCApr 13, 19:15 UTC25m

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 N2725N page for operator, model, and routing details .

Mode-S A2B0FE frequently asked

What is Mode-S code A2B0FE?
A2B0FE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2725N.
Where is Mode-S A2B0FE registered?
Mode-S code A2B0FE 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 A2B0FE 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 A2B0FE, octal 50530376, decimal 10,662,142.
What flights does A2B0FE operate?
Mode-S A2B0FE has broadcast 1 distinct callsign, including N2725N.