Apparatus

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sensors Mode-S transponder

AD3B95

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9516N · operated by PIPER AIRCRAFT INC

Hex
AD3B95
Octal
53235625
Decimal
11,352,981
Country
US
Tail
N9516N
Type
P28A
No current signal · last broadcast 23d ago
Flights observed
239
Distinct callsigns
3
Country
US
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S AD3B95.

Country allocation

The ICAO 24-bit address AD3B95 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 3 distinct

Callsign Airline Flights Last seen
N684JA - 159 2026-07-26
OUA19 - 77 2026-07-06
N9516N - 3 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N684JA - Jul 26, 19:20 UTCJul 26, 20:40 UTC1h 20m
2026-07-26 N684JA - Jul 26, 18:25 UTCJul 26, 18:40 UTC15m
2026-07-25 N684JA - Jul 25, 17:35 UTCJul 25, 18:00 UTC25m
2026-07-25 N684JA - Jul 25, 13:50 UTCJul 25, 14:50 UTC1h 0m
2026-07-25 N684JA - Jul 25, 10:30 UTCJul 25, 13:10 UTC2h 40m
2026-07-24 N684JA - Jul 24, 19:20 UTCJul 24, 20:20 UTC1h 0m
2026-07-24 N684JA - Jul 24, 17:25 UTCJul 24, 18:40 UTC1h 15m
2026-07-24 N684JA - Jul 24, 14:10 UTCJul 24, 15:25 UTC1h 15m
2026-07-23 N684JA - Jul 23, 19:25 UTCJul 23, 22:30 UTC3h 5m
2026-07-23 N684JA - Jul 23, 17:40 UTCJul 23, 18:25 UTC45m
2026-07-23 N684JA - Jul 23, 14:40 UTCJul 23, 15:50 UTC1h 10m
2026-07-23 N684JA - Jul 23, 13:45 UTCJul 23, 13:55 UTC10m
2026-07-23 N684JA - Jul 23, 12:40 UTCJul 23, 13:10 UTC30m
2026-07-23 N684JA - Jul 23, 11:55 UTCJul 23, 12:10 UTC15m
2026-07-23 N684JA - Jul 23, 10:20 UTCJul 23, 11:00 UTC40m
2026-07-22 N684JA - Jul 22, 14:25 UTCJul 22, 15:45 UTC1h 20m
2026-07-20 N684JA - Jul 20, 20:40 UTCJul 20, 21:05 UTC25m
2026-07-20 N684JA - Jul 20, 19:40 UTCJul 20, 20:00 UTC20m
2026-07-20 N684JA - Jul 20, 15:50 UTCJul 20, 16:45 UTC55m
2026-07-20 N684JA - Jul 20, 14:35 UTCJul 20, 14:50 UTC15m
2026-07-16 N684JA - Jul 16, 18:15 UTCJul 16, 18:25 UTC10m
2026-07-16 N684JA - Jul 16, 10:20 UTCJul 16, 11:54 UTC1h 35m
2026-07-15 N684JA - Jul 15, 21:00 UTCJul 15, 21:15 UTC15m
2026-07-15 N684JA - Jul 15, 18:25 UTCJul 15, 19:45 UTC1h 20m
2026-07-15 N684JA - Jul 15, 15:55 UTCJul 15, 16:10 UTC15m
2026-07-15 N684JA - Jul 15, 14:50 UTCJul 15, 15:25 UTC35m
2026-07-15 N684JA - Jul 15, 12:45 UTCJul 15, 14:05 UTC1h 20m
2026-07-15 N684JA - Jul 15, 10:35 UTCJul 15, 11:55 UTC1h 20m
2026-07-14 N684JA - Jul 14, 19:55 UTCJul 14, 20:40 UTC45m
2026-07-14 N684JA - Jul 14, 15:55 UTCJul 14, 16:45 UTC50m
2026-07-14 N684JA - Jul 14, 10:25 UTCJul 14, 11:45 UTC1h 20m
2026-07-13 N684JA - Jul 13, 23:00 UTCJul 13, 23:35 UTC35m
2026-07-13 N684JA - Jul 13, 19:35 UTCJul 13, 21:05 UTC1h 30m
2026-07-13 N684JA - Jul 13, 12:40 UTCJul 13, 13:45 UTC1h 5m
2026-07-13 N684JA - Jul 13, 10:20 UTCJul 13, 11:50 UTC1h 30m
2026-07-12 N684JA - Jul 12, 17:40 UTCJul 12, 18:35 UTC55m
2026-07-12 N684JA - Jul 12, 14:45 UTCJul 12, 16:05 UTC1h 20m
2026-07-12 N684JA - Jul 12, 11:15 UTCJul 12, 12:30 UTC1h 15m
2026-07-10 N684JA - Jul 10, 18:45 UTCJul 10, 19:15 UTC30m
2026-07-10 N684JA - Jul 10, 16:25 UTCJul 10, 16:55 UTC30m
2026-07-10 N684JA - Jul 10, 14:10 UTCJul 10, 14:25 UTC15m
2026-07-10 N684JA - Jul 10, 13:05 UTCJul 10, 13:20 UTC15m
2026-07-10 N684JA - Jul 10, 10:05 UTCJul 10, 10:15 UTC10m
2026-07-09 N684JA - Jul 9, 14:25 UTCJul 9, 15:45 UTC1h 20m
2026-07-09 N684JA - Jul 9, 12:35 UTCJul 9, 13:50 UTC1h 15m
2026-07-09 N684JA - Jul 9, 10:20 UTCJul 9, 12:00 UTC1h 40m
2026-07-08 N684JA - Jul 8, 23:20 UTCJul 9, 00:35 UTC1h 15m
2026-07-08 N684JA - Jul 8, 19:30 UTCJul 8, 21:50 UTC2h 20m
2026-07-08 N684JA - Jul 8, 17:25 UTCJul 8, 18:20 UTC55m
2026-07-08 N9516N - Jul 8, 15:25 UTCJul 8, 16:05 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 N9516N page for operator, model, and routing details .

Mode-S AD3B95 frequently asked

What is Mode-S code AD3B95?
AD3B95 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9516N.
Where is Mode-S AD3B95 registered?
Mode-S code AD3B95 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 AD3B95 broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD3B95, octal 53235625, decimal 11,352,981.
What flights does AD3B95 operate?
Mode-S AD3B95 has broadcast 3 distinct callsigns, including N684JA, OUA19, N9516N.