sensors Mode-S transponder

A4E28C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N41364 · PIPER PA-28-201T/235/236 · operated by DANCHI RICHARD

Hex
A4E28C
Octal
51161214
Decimal
10,805,900
Country
US
Tail
N41364
Type
P28B
No current signal · last broadcast Jul 12, 14:01 UTC
Flights observed
4
Distinct callsigns
1
Country
US
Last broadcast
Jul 12, 14:01 UTC

Last known position

Most recent position reported by Mode-S A4E28C.

Country allocation

The ICAO 24-bit address A4E28C 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
N41364 - 4 2026-07-12

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-07-12 N41364 - Jul 12, 13:50 UTCJul 12, 14:01 UTC10m
2026-06-07 N41364 - Jun 7, 02:14 UTCJun 7, 03:00 UTC45m
2026-06-06 N41364 - Jun 6, 23:50 UTCJun 7, 01:15 UTC1h 25m
2026-06-06 N41364 - Jun 6, 22:39 UTCJun 6, 22:55 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 N41364 page for operator, model, and routing details .

Mode-S A4E28C frequently asked

What is Mode-S code A4E28C?
A4E28C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N41364.
Where is Mode-S A4E28C registered?
Mode-S code A4E28C 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 A4E28C broadcasting right now?
No active broadcast right now. Last signal was Jul 12, 14:01 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4E28C, octal 51161214, decimal 10,805,900.
What flights does A4E28C operate?
Mode-S A4E28C has broadcast 1 distinct callsign, including N41364.