sensors Mode-S transponder

A6CA42

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N53682 · PIPER PA-32R-300/301/301T · operated by FISHER BRYCE D H

Hex
A6CA42
Octal
51545102
Decimal
10,930,754
Country
US
Tail
N53682
Type
P32R
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A6CA42.

Country allocation

The ICAO 24-bit address A6CA42 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
N53682 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 N53682 - Apr 13, 23:15 UTCApr 13, 23:40 UTC25m
2026-04-13 N53682 - Apr 13, 18:25 UTCApr 13, 19:05 UTC40m
2026-04-13 N53682 - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 N53682 - Apr 13, 15:35 UTCApr 13, 16:00 UTC25m
2026-04-13 N53682 - Apr 13, 12:20 UTCApr 13, 12:45 UTC25m
2026-04-13 N53682 - 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 N53682 page for operator, model, and routing details .

Mode-S A6CA42 frequently asked

What is Mode-S code A6CA42?
A6CA42 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N53682.
Where is Mode-S A6CA42 registered?
Mode-S code A6CA42 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 A6CA42 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 A6CA42, octal 51545102, decimal 10,930,754.
What flights does A6CA42 operate?
Mode-S A6CA42 has broadcast 1 distinct callsign, including N53682.