sensors Mode-S transponder

A6C5F8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5354V · PIPER PA-32R-300/301/301T · operated by HOWE ANDREW

Hex
A6C5F8
Octal
51542770
Decimal
10,929,656
Country
US
Tail
N5354V
Type
P32R
No current signal · last broadcast 22h ago
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S A6C5F8.

Country allocation

The ICAO 24-bit address A6C5F8 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
N5354V - 6 2026-05-29

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-05-29 N5354V - May 29, 17:25 UTCMay 29, 18:55 UTC1h 30m
2026-05-29 N5354V - May 29, 14:25 UTCMay 29, 15:50 UTC1h 26m
2026-05-22 N5354V - May 22, 16:50 UTCMay 22, 17:35 UTC45m
2026-05-22 N5354V - May 22, 14:30 UTCMay 22, 15:15 UTC45m
2026-05-16 N5354V - May 16, 16:40 UTCMay 16, 17:40 UTC1h 0m
2026-05-16 N5354V - May 16, 15:10 UTCMay 16, 15:31 UTC20m

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 N5354V page for operator, model, and routing details .

Mode-S A6C5F8 frequently asked

What is Mode-S code A6C5F8?
A6C5F8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5354V.
Where is Mode-S A6C5F8 registered?
Mode-S code A6C5F8 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 A6C5F8 broadcasting right now?
No active broadcast right now. Last signal was 22h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6C5F8, octal 51542770, decimal 10,929,656.
What flights does A6C5F8 operate?
Mode-S A6C5F8 has broadcast 1 distinct callsign, including N5354V.