sensors Mode-S transponder

A87F14

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N64686 · CESSNA 172 Skyhawk · operated by KADENA AERO CLUB

Hex
A87F14
Octal
52077424
Decimal
11,042,580
Country
US
Tail
N64686
Type
C172
No current signal · last broadcast 15h ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S A87F14.

Country allocation

The ICAO 24-bit address A87F14 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
N64686 - 5 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 N64686 - Apr 14, 09:00 UTCApr 14, 09:05 UTC5m
2026-04-14 N64686 - Apr 14, 07:20 UTCApr 14, 07:35 UTC15m
2026-04-14 N64686 - Apr 14, 06:55 UTCApr 14, 07:05 UTC10m
2026-04-13 N64686 - Apr 13, 09:25 UTCApr 13, 10:15 UTC50m
2026-04-13 N64686 DNA → DNA Apr 13, 07:00 UTCApr 13, 07:40 UTC40m

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 N64686 page for operator, model, and routing details .

Mode-S A87F14 frequently asked

What is Mode-S code A87F14?
A87F14 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N64686.
Where is Mode-S A87F14 registered?
Mode-S code A87F14 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 A87F14 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A87F14, octal 52077424, decimal 11,042,580.
What flights does A87F14 operate?
Mode-S A87F14 has broadcast 1 distinct callsign, including N64686.