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sensors Mode-S transponder

A4694A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N38331 · PIPER PA-32 · operated by JOHNSTON CRAIG J

Hex
A4694A
Octal
51064512
Decimal
10,774,858
Country
US
Tail
N38331
Type
PA32
No current signal · last broadcast 15h ago
Flights observed
153
Distinct callsigns
1
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S A4694A.

Country allocation

The ICAO 24-bit address A4694A 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
N38331 - 153 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N38331 - Jul 13, 16:30 UTCJul 13, 17:30 UTC1h 0m
2026-07-13 N38331 - Jul 13, 14:30 UTCJul 13, 15:35 UTC1h 5m
2026-07-12 N38331 - Jul 12, 18:15 UTCJul 12, 22:10 UTC3h 55m
2026-07-12 N38331 - Jul 12, 16:01 UTCJul 12, 17:05 UTC1h 5m
2026-07-12 N38331 - Jul 12, 14:20 UTCJul 12, 15:10 UTC50m
2026-07-12 N38331 - Jul 12, 12:55 UTCJul 12, 13:45 UTC50m
2026-07-11 N38331 - Jul 11, 16:30 UTCJul 11, 19:40 UTC3h 10m
2026-07-11 N38331 - Jul 11, 14:15 UTCJul 11, 15:00 UTC45m
2026-07-11 N38331 - Jul 11, 12:35 UTCJul 11, 13:45 UTC1h 10m
2026-07-10 N38331 - Jul 10, 21:55 UTCJul 10, 23:10 UTC1h 15m
2026-07-10 N38331 - Jul 10, 18:30 UTCJul 10, 20:45 UTC2h 15m
2026-07-10 N38331 - Jul 10, 14:15 UTCJul 10, 15:45 UTC1h 30m
2026-07-10 N38331 - Jul 10, 11:15 UTCJul 10, 13:45 UTC2h 30m
2026-07-09 N38331 - Jul 9, 13:45 UTCJul 9, 16:20 UTC2h 35m
2026-07-08 N38331 - Jul 8, 14:55 UTCJul 8, 16:10 UTC1h 15m
2026-07-08 N38331 - Jul 8, 11:45 UTCJul 8, 13:45 UTC2h 0m
2026-07-05 N38331 - Jul 5, 17:10 UTCJul 5, 18:10 UTC1h 0m
2026-07-05 N38331 - Jul 5, 14:10 UTCJul 5, 16:40 UTC2h 30m
2026-07-04 N38331 - Jul 4, 19:55 UTCJul 4, 20:55 UTC1h 0m
2026-07-04 N38331 - Jul 4, 18:10 UTCJul 4, 19:15 UTC1h 5m
2026-07-04 N38331 - Jul 4, 00:00 UTCJul 4, 00:55 UTC55m
2026-07-03 N38331 - Jul 3, 18:40 UTCJul 3, 22:35 UTC3h 55m
2026-07-02 N38331 - Jul 2, 16:40 UTCJul 2, 19:15 UTC2h 35m
2026-07-02 N38331 - Jul 2, 15:35 UTCJul 2, 16:35 UTC1h 0m
2026-07-01 N38331 - Jul 1, 22:00 UTCJul 1, 22:20 UTC20m
2026-07-01 N38331 - Jul 1, 21:10 UTCJul 1, 21:40 UTC30m
2026-07-01 N38331 - Jul 1, 13:05 UTCJul 1, 20:00 UTC6h 55m
2026-07-01 N38331 - Jul 1, 12:05 UTCJul 1, 12:30 UTC25m
2026-06-30 N38331 - Jun 30, 16:40 UTCJun 30, 17:00 UTC20m
2026-06-30 N38331 - Jun 30, 15:05 UTCJun 30, 15:40 UTC35m
2026-06-30 N38331 - Jun 30, 13:00 UTCJun 30, 14:10 UTC1h 10m
2026-06-28 N38331 - Jun 28, 18:59 UTCJun 28, 21:34 UTC2h 35m
2026-06-28 N38331 - Jun 28, 15:49 UTCJun 28, 18:25 UTC2h 35m
2026-06-26 N38331 - Jun 26, 19:00 UTCJun 26, 19:39 UTC40m
2026-06-22 N38331 - Jun 22, 13:10 UTCJun 22, 17:29 UTC4h 20m
2026-06-22 N38331 - Jun 22, 12:10 UTCJun 22, 12:40 UTC30m
2026-06-22 N38331 - Jun 22, 10:40 UTCJun 22, 11:39 UTC1h 0m
2026-06-21 N38331 - Jun 21, 19:00 UTCJun 21, 19:34 UTC35m
2026-06-21 N38331 - Jun 21, 17:54 UTCJun 21, 18:29 UTC35m
2026-06-20 N38331 - Jun 20, 15:24 UTCJun 20, 19:04 UTC3h 40m
2026-06-20 N38331 - Jun 20, 12:54 UTCJun 20, 14:09 UTC1h 15m
2026-06-20 N38331 - Jun 20, 10:44 UTCJun 20, 11:49 UTC1h 5m
2026-06-19 N38331 - Jun 19, 20:55 UTCJun 19, 21:19 UTC25m
2026-06-19 N38331 - Jun 19, 19:14 UTCJun 19, 20:49 UTC1h 35m
2026-06-19 N38331 - Jun 19, 11:09 UTCJun 19, 13:54 UTC2h 45m
2026-06-18 N38331 - Jun 18, 00:25 UTCJun 18, 01:25 UTC1h 0m
2026-06-17 N38331 - Jun 17, 23:50 UTCJun 18, 00:20 UTC30m
2026-06-17 N38331 - Jun 17, 22:25 UTCJun 17, 23:15 UTC50m
2026-06-17 N38331 - Jun 17, 11:45 UTCJun 17, 13:40 UTC1h 55m
2026-06-16 N38331 - Jun 16, 21:20 UTCJun 16, 22:00 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 N38331 page for operator, model, and routing details .

Mode-S A4694A frequently asked

What is Mode-S code A4694A?
A4694A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N38331.
Where is Mode-S A4694A registered?
Mode-S code A4694A 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 A4694A 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 A4694A, octal 51064512, decimal 10,774,858.
What flights does A4694A operate?
Mode-S A4694A has broadcast 1 distinct callsign, including N38331.