sensors Mode-S transponder

A17F9A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N196MT · PIPER PA-28-140/150/160/180 · operated by SHEBOYGAN FLYING CLUB LLC

Hex
A17F9A
Octal
50277632
Decimal
10,583,962
Country
US
Tail
N196MT
Type
P28A
No current signal · last broadcast 3d ago
Flights observed
32
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A17F9A.

Country allocation

The ICAO 24-bit address A17F9A 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
N196MT - 32 2026-07-10

Recent flights last 32

DateFlightRouteTakeoffLandingDuration
2026-07-10 N196MT - Jul 10, 21:40 UTCJul 10, 22:40 UTC1h 0m
2026-07-07 N196MT - Jul 7, 21:40 UTCJul 7, 22:35 UTC55m
2026-07-05 N196MT - Jul 5, 21:35 UTCJul 5, 22:35 UTC1h 0m
2026-07-03 N196MT - Jul 3, 15:40 UTCJul 3, 16:50 UTC1h 10m
2026-07-02 N196MT - Jul 2, 20:35 UTCJul 2, 21:35 UTC1h 0m
2026-07-01 N196MT - Jul 1, 23:15 UTCJul 2, 00:05 UTC50m
2026-07-01 N196MT - Jul 1, 18:35 UTCJul 1, 18:55 UTC20m
2026-07-01 N196MT - Jul 1, 16:15 UTCJul 1, 16:40 UTC25m
2026-06-26 N196MT - Jun 26, 22:44 UTCJun 27, 01:00 UTC2h 15m
2026-06-26 N196MT - Jun 26, 16:30 UTCJun 26, 18:20 UTC1h 50m
2026-06-22 N196MT - Jun 22, 21:25 UTCJun 22, 22:44 UTC1h 20m
2026-06-22 N196MT - Jun 22, 20:10 UTCJun 22, 20:44 UTC35m
2026-06-22 N196MT - Jun 22, 17:50 UTCJun 22, 18:54 UTC1h 5m
2026-06-22 N196MT SBM → SBM Jun 22, 17:04 UTCJun 22, 17:15 UTC10m
2026-06-15 N196MT - Jun 15, 22:45 UTCJun 16, 00:00 UTC1h 15m
2026-06-15 N196MT - Jun 15, 21:30 UTCJun 15, 22:10 UTC40m
2026-06-14 N196MT - Jun 14, 18:25 UTCJun 14, 19:15 UTC50m
2026-06-13 N196MT - Jun 13, 15:00 UTCJun 13, 16:10 UTC1h 10m
2026-05-28 N196MT SBM → SBM May 28, 22:55 UTCMay 28, 23:50 UTC55m
2026-05-27 N196MT - May 27, 15:30 UTCMay 27, 16:00 UTC30m
2026-05-27 N196MT SBM → GRB May 27, 12:50 UTCMay 27, 13:45 UTC55m
2026-05-22 N196MT SBM → SBM May 22, 12:35 UTCMay 22, 13:10 UTC35m
2026-05-21 N196MT - May 21, 16:35 UTCMay 21, 17:05 UTC30m
2026-05-21 N196MT - May 21, 13:50 UTCMay 21, 14:20 UTC30m
2026-05-21 N196MT - May 21, 02:25 UTCMay 21, 02:55 UTC30m
2026-05-21 N196MT - May 21, 00:55 UTCMay 21, 01:35 UTC40m
2026-05-20 N196MT - May 20, 23:10 UTCMay 21, 00:05 UTC55m
2026-05-20 N196MT - May 20, 18:20 UTCMay 20, 19:20 UTC1h 0m
2026-05-20 N196MT - May 20, 00:55 UTCMay 20, 01:35 UTC40m
2026-05-19 N196MT SBM → SBM May 19, 21:10 UTCMay 19, 22:10 UTC1h 0m
2026-05-16 N196MT SBM → SBM May 16, 22:50 UTCMay 16, 23:00 UTC10m
2026-05-15 N196MT - May 15, 18:10 UTCMay 15, 18:20 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 N196MT page for operator, model, and routing details .

Mode-S A17F9A frequently asked

What is Mode-S code A17F9A?
A17F9A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N196MT.
Where is Mode-S A17F9A registered?
Mode-S code A17F9A 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 A17F9A broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A17F9A, octal 50277632, decimal 10,583,962.
What flights does A17F9A operate?
Mode-S A17F9A has broadcast 1 distinct callsign, including N196MT.