Apparatus

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sensors Mode-S transponder

A3F10D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N353MH · AEROSPATIALE AS-350 Ecureuil · operated by PATHFINDER LEASING LLC

Hex
A3F10D
Octal
50770415
Decimal
10,744,077
Country
US
Tail
N353MH
Type
AS50
No current signal · last broadcast 26d ago
Flights observed
46
Distinct callsigns
1
Country
US
Last broadcast
26d ago

Last known position

Most recent position reported by Mode-S A3F10D.

Country allocation

The ICAO 24-bit address A3F10D 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
N353MH - 46 2026-06-17

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-06-17 N353MH - Jun 17, 22:25 UTCJun 17, 23:25 UTC1h 0m
2026-06-17 N353MH - Jun 17, 21:10 UTCJun 17, 21:35 UTC25m
2026-06-17 N353MH - Jun 17, 19:50 UTCJun 17, 20:05 UTC15m
2026-06-17 N353MH - Jun 17, 05:30 UTCJun 17, 06:00 UTC30m
2026-06-16 N353MH - Jun 16, 23:25 UTCJun 16, 23:35 UTC10m
2026-06-16 N353MH - Jun 16, 20:50 UTCJun 16, 22:00 UTC1h 10m
2026-06-16 N353MH - Jun 16, 19:50 UTCJun 16, 20:10 UTC20m
2026-06-16 N353MH - Jun 16, 05:05 UTCJun 16, 05:30 UTC25m
2026-06-16 N353MH - Jun 16, 01:35 UTCJun 16, 01:45 UTC10m
2026-06-16 N353MH - Jun 16, 00:40 UTCJun 16, 00:55 UTC15m
2026-06-15 N353MH - Jun 15, 22:35 UTCJun 15, 23:50 UTC1h 15m
2026-06-15 N353MH - Jun 15, 20:25 UTCJun 15, 20:34 UTC10m
2026-06-15 N353MH - Jun 15, 05:15 UTCJun 15, 05:45 UTC30m
2026-06-15 N353MH - Jun 15, 01:30 UTCJun 15, 01:40 UTC10m
2026-06-14 N353MH - Jun 14, 19:30 UTCJun 14, 19:55 UTC25m
2026-06-14 N353MH - Jun 14, 05:05 UTCJun 14, 05:35 UTC30m
2026-06-13 N353MH - Jun 13, 19:40 UTCJun 13, 20:05 UTC25m
2026-06-13 N353MH - Jun 13, 05:15 UTCJun 13, 05:50 UTC35m
2026-06-12 N353MH - Jun 12, 20:05 UTCJun 12, 20:35 UTC30m
2026-06-12 N353MH - Jun 12, 05:35 UTCJun 12, 06:05 UTC30m
2026-06-12 N353MH ABL → ABL Jun 12, 00:55 UTCJun 12, 01:25 UTC30m
2026-06-11 N353MH - Jun 11, 22:25 UTCJun 11, 23:25 UTC1h 0m
2026-06-11 N353MH - Jun 11, 20:15 UTCJun 11, 20:40 UTC25m
2026-06-11 N353MH - Jun 11, 05:15 UTCJun 11, 05:45 UTC30m
2026-06-11 N353MH SHG → SHG Jun 11, 02:50 UTCJun 11, 03:05 UTC15m
2026-06-11 N353MH - Jun 11, 00:25 UTCJun 11, 00:50 UTC25m
2026-06-10 N353MH - Jun 10, 19:50 UTCJun 10, 20:10 UTC20m
2026-06-10 N353MH - Jun 10, 05:35 UTCJun 10, 06:00 UTC25m
2026-06-09 N353MH - Jun 9, 20:20 UTCJun 9, 20:35 UTC15m
2026-05-30 N353MH - May 30, 22:35 UTCMay 30, 23:05 UTC30m
2026-05-30 N353MH - May 30, 21:10 UTCMay 30, 21:55 UTC45m
2026-05-13 N353MH - May 13, 20:15 UTCMay 13, 21:15 UTC1h 0m
2026-05-12 N353MH - May 12, 18:10 UTCMay 12, 18:45 UTC35m
2026-05-10 N353MH - May 10, 23:05 UTCMay 10, 23:15 UTC10m
2026-05-09 N353MH - May 9, 02:10 UTCMay 9, 02:35 UTC25m
2026-05-07 N353MH - May 7, 01:25 UTCMay 7, 01:35 UTC10m
2026-05-06 N353MH - May 6, 01:20 UTCMay 6, 01:35 UTC15m
2026-05-05 N353MH - May 5, 22:25 UTCMay 5, 22:35 UTC10m
2026-05-03 N353MH - May 3, 22:20 UTCMay 3, 22:39 UTC20m
2026-05-03 N353MH - May 3, 20:25 UTCMay 3, 20:35 UTC10m
2026-05-03 N353MH - May 3, 03:20 UTCMay 3, 03:40 UTC19m
2026-05-03 N353MH - May 3, 01:20 UTCMay 3, 01:35 UTC15m
2026-05-01 N353MH - May 1, 01:20 UTCMay 1, 01:50 UTC30m
2026-04-30 N353MH - Apr 30, 23:45 UTCMay 1, 00:20 UTC35m
2026-04-30 N353MH - Apr 30, 22:25 UTCApr 30, 23:00 UTC35m
2026-04-19 N353MH - Apr 19, 03:00 UTCApr 19, 04:10 UTC1h 10m

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 N353MH page for operator, model, and routing details .

Mode-S A3F10D frequently asked

What is Mode-S code A3F10D?
A3F10D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N353MH.
Where is Mode-S A3F10D registered?
Mode-S code A3F10D 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 A3F10D broadcasting right now?
No active broadcast right now. Last signal was 26d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3F10D, octal 50770415, decimal 10,744,077.
What flights does A3F10D operate?
Mode-S A3F10D has broadcast 1 distinct callsign, including N353MH.