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sensors Mode-S transponder

A9FD75

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7428N · operated by HAWTHORN TRANSPORTATION LLC

Hex
A9FD75
Octal
52376565
Decimal
11,140,469
Country
US
Tail
N7428N
Type
C182
No current signal · last broadcast Jul 26, 17:10 UTC
Flights observed
176
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 17:10 UTC

Last known position

Most recent position reported by Mode-S A9FD75.

Country allocation

The ICAO 24-bit address A9FD75 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
N7428N - 176 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N7428N - Jul 26, 16:55 UTCJul 26, 17:10 UTC15m
2026-07-26 N7428N - Jul 26, 05:05 UTCJul 26, 05:40 UTC35m
2026-07-26 N7428N - Jul 26, 01:25 UTCJul 26, 01:45 UTC20m
2026-07-26 N7428N - Jul 26, 00:05 UTCJul 26, 00:25 UTC20m
2026-07-25 N7428N - Jul 25, 18:50 UTCJul 25, 21:45 UTC2h 55m
2026-07-23 N7428N - Jul 23, 22:30 UTCJul 23, 22:50 UTC20m
2026-07-22 N7428N - Jul 22, 17:35 UTCJul 22, 17:50 UTC15m
2026-07-22 N7428N - Jul 22, 16:05 UTCJul 22, 16:50 UTC45m
2026-07-21 N7428N - Jul 21, 09:00 UTCJul 21, 12:45 UTC3h 45m
2026-07-21 N7428N - Jul 21, 02:50 UTCJul 21, 08:10 UTC5h 20m
2026-07-20 N7428N - Jul 20, 23:40 UTCJul 21, 01:20 UTC1h 40m
2026-07-05 N7428N - Jul 5, 10:00 UTCJul 5, 11:30 UTC1h 30m
2026-07-04 N7428N - Jul 4, 14:25 UTCJul 4, 15:50 UTC1h 25m
2026-06-29 N7428N - Jun 29, 14:25 UTCJun 29, 15:49 UTC1h 25m
2026-06-25 N7428N - Jun 25, 11:54 UTCJun 25, 13:09 UTC1h 15m
2026-06-23 N7428N - Jun 23, 01:40 UTCJun 23, 02:09 UTC30m
2026-06-22 N7428N - Jun 22, 23:35 UTCJun 22, 23:55 UTC20m
2026-06-19 N7428N - Jun 19, 20:59 UTCJun 19, 21:24 UTC25m
2026-06-19 N7428N - Jun 19, 16:55 UTCJun 19, 17:24 UTC30m
2026-06-18 N7428N - Jun 18, 10:50 UTCJun 18, 11:15 UTC25m
2026-06-18 N7428N - Jun 18, 09:40 UTCJun 18, 09:50 UTC10m
2026-06-18 N7428N - Jun 18, 06:50 UTCJun 18, 08:45 UTC1h 55m
2026-06-18 N7428N - Jun 18, 05:05 UTCJun 18, 05:55 UTC50m
2026-06-18 N7428N - Jun 18, 00:25 UTCJun 18, 02:10 UTC1h 45m
2026-06-17 N7428N - Jun 17, 22:35 UTCJun 17, 23:50 UTC1h 15m
2026-06-16 N7428N - Jun 16, 23:30 UTCJun 17, 00:15 UTC45m
2026-06-16 N7428N - Jun 16, 21:05 UTCJun 16, 22:55 UTC1h 50m
2026-06-16 N7428N - Jun 16, 18:25 UTCJun 16, 18:55 UTC30m
2026-06-16 N7428N - Jun 16, 16:50 UTCJun 16, 17:30 UTC40m
2026-06-16 N7428N - Jun 16, 15:30 UTCJun 16, 16:10 UTC40m
2026-06-16 N7428N - Jun 16, 14:20 UTCJun 16, 14:55 UTC35m
2026-06-16 N7428N - Jun 16, 00:50 UTCJun 16, 01:15 UTC25m
2026-06-16 N7428N LNA → LNA Jun 16, 00:15 UTCJun 16, 00:24 UTC10m
2026-06-15 N7428N - Jun 15, 21:35 UTCJun 15, 23:50 UTC2h 15m
2026-06-14 N7428N - Jun 14, 18:15 UTCJun 14, 20:00 UTC1h 45m
2026-06-13 N7428N - Jun 13, 22:50 UTCJun 14, 01:35 UTC2h 45m
2026-06-13 N7428N - Jun 13, 21:25 UTCJun 13, 22:15 UTC50m
2026-06-12 N7428N - Jun 12, 16:10 UTCJun 12, 17:10 UTC1h 0m
2026-06-10 N7428N - Jun 10, 23:30 UTCJun 10, 23:55 UTC25m
2026-06-10 N7428N - Jun 10, 22:30 UTCJun 10, 22:40 UTC10m
2026-06-10 N7428N - Jun 10, 18:25 UTCJun 10, 21:35 UTC3h 10m
2026-06-09 N7428N - Jun 9, 23:40 UTCJun 10, 03:00 UTC3h 20m
2026-06-09 N7428N - Jun 9, 21:35 UTCJun 9, 22:50 UTC1h 15m
2026-06-09 N7428N - Jun 9, 17:25 UTCJun 9, 19:55 UTC2h 30m
2026-06-09 N7428N - Jun 9, 14:25 UTCJun 9, 15:50 UTC1h 25m
2026-06-09 N7428N - Jun 9, 13:00 UTCJun 9, 13:45 UTC45m
2026-06-09 N7428N - Jun 9, 03:10 UTCJun 9, 04:40 UTC1h 30m
2026-06-09 N7428N - Jun 9, 00:50 UTCJun 9, 02:15 UTC1h 25m
2026-06-08 N7428N - Jun 8, 22:40 UTCJun 8, 23:20 UTC40m
2026-06-08 N7428N - Jun 8, 21:25 UTCJun 8, 21:40 UTC15m

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 N7428N page for operator, model, and routing details .

Mode-S A9FD75 frequently asked

What is Mode-S code A9FD75?
A9FD75 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7428N.
Where is Mode-S A9FD75 registered?
Mode-S code A9FD75 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 A9FD75 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9FD75, octal 52376565, decimal 11,140,469.
What flights does A9FD75 operate?
Mode-S A9FD75 has broadcast 1 distinct callsign, including N7428N.