Apparatus

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sensors Mode-S transponder

A9C25E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N728MG · PILATUS PC-12 · operated by KNOT CRAZY HORSE LLC, LAMINAR FLOW AVIATION LLC

Hex
A9C25E
Octal
52341136
Decimal
11,125,342
Country
US
Tail
N728MG
Type
PC12
No current signal · last broadcast 3d ago
Flights observed
144
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A9C25E.

Country allocation

The ICAO 24-bit address A9C25E 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
N728MG - 144 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-01 N728MG - Jul 1, 22:55 UTCJul 2, 01:00 UTC2h 5m
2026-07-01 N728MG - Jul 1, 21:30 UTCJul 1, 22:15 UTC45m
2026-07-01 N728MG - Jul 1, 18:25 UTCJul 1, 20:25 UTC2h 0m
2026-07-01 N728MG - Jul 1, 14:35 UTCJul 1, 15:05 UTC30m
2026-06-30 N728MG - Jun 30, 21:30 UTCJun 30, 23:50 UTC2h 20m
2026-06-30 N728MG - Jun 30, 14:30 UTCJun 30, 16:15 UTC1h 45m
2026-06-29 N728MG - Jun 29, 19:54 UTCJun 29, 21:50 UTC1h 55m
2026-06-29 N728MG - Jun 29, 14:04 UTCJun 29, 16:04 UTC2h 0m
2026-06-29 N728MG - Jun 29, 10:40 UTCJun 29, 12:34 UTC1h 55m
2026-06-28 N728MG - Jun 28, 14:09 UTCJun 28, 16:39 UTC2h 30m
2026-06-28 N728MG PIE → FLL Jun 28, 12:15 UTCJun 28, 13:14 UTC1h 0m
2026-06-28 N728MG - Jun 28, 04:05 UTCJun 28, 04:55 UTC50m
2026-06-27 N728MG - Jun 27, 20:24 UTCJun 27, 21:59 UTC1h 35m
2026-06-27 N728MG - Jun 27, 15:39 UTCJun 27, 17:29 UTC1h 50m
2026-06-27 N728MG - Jun 27, 11:39 UTCJun 27, 13:20 UTC1h 40m
2026-06-26 N728MG - Jun 26, 18:54 UTCJun 26, 20:10 UTC1h 15m
2026-06-26 N728MG - Jun 26, 14:09 UTCJun 26, 17:15 UTC3h 5m
2026-06-26 N728MG - Jun 26, 10:50 UTCJun 26, 12:44 UTC1h 55m
2026-06-25 N728MG - Jun 25, 21:05 UTCJun 25, 22:59 UTC1h 55m
2026-06-25 N728MG - Jun 25, 18:24 UTCJun 25, 20:14 UTC1h 50m
2026-06-25 N728MG - Jun 25, 13:59 UTCJun 25, 17:09 UTC3h 10m
2026-06-25 N728MG - Jun 25, 11:19 UTCJun 25, 12:44 UTC1h 25m
2026-06-24 N728MG - Jun 24, 22:55 UTCJun 25, 01:04 UTC2h 10m
2026-06-24 N728MG - Jun 24, 19:44 UTCJun 24, 20:35 UTC50m
2026-06-23 N728MG - Jun 23, 15:15 UTCJun 23, 17:30 UTC2h 15m
2026-06-23 N728MG - Jun 23, 01:25 UTCJun 23, 03:34 UTC2h 10m
2026-06-22 N728MG - Jun 22, 20:10 UTCJun 23, 00:30 UTC4h 20m
2026-06-22 N728MG OPF → TPA Jun 22, 15:54 UTCJun 22, 16:54 UTC1h 0m
2026-06-22 N728MG - Jun 22, 11:09 UTCJun 22, 12:05 UTC55m
2026-06-21 N728MG - Jun 21, 18:50 UTCJun 21, 21:24 UTC2h 35m
2026-06-21 N728MG - Jun 21, 17:20 UTCJun 21, 18:20 UTC1h 0m
2026-06-21 N728MG - Jun 21, 13:54 UTCJun 21, 16:19 UTC2h 25m
2026-06-20 N728MG - Jun 20, 15:39 UTCJun 20, 18:40 UTC3h 0m
2026-06-20 N728MG - Jun 20, 12:24 UTCJun 20, 14:59 UTC2h 35m
2026-06-19 N728MG - Jun 19, 20:19 UTCJun 19, 20:49 UTC30m
2026-06-19 N728MG - Jun 19, 16:14 UTCJun 19, 19:45 UTC3h 30m
2026-06-19 N728MG - Jun 19, 11:14 UTCJun 19, 13:29 UTC2h 15m
2026-06-18 N728MG - Jun 18, 19:45 UTCJun 18, 21:35 UTC1h 50m
2026-06-18 N728MG - Jun 18, 00:45 UTCJun 18, 02:15 UTC1h 30m
2026-06-17 N728MG - Jun 17, 18:20 UTCJun 17, 18:40 UTC20m
2026-06-17 N728MG - Jun 17, 15:30 UTCJun 17, 17:15 UTC1h 45m
2026-06-17 N728MG - Jun 17, 13:20 UTCJun 17, 14:20 UTC1h 0m
2026-06-17 N728MG - Jun 17, 10:40 UTCJun 17, 11:30 UTC50m
2026-06-15 N728MG - Jun 15, 20:50 UTCJun 15, 22:45 UTC1h 55m
2026-06-15 N728MG - Jun 15, 19:55 UTCJun 15, 20:04 UTC10m
2026-06-15 N728MG - Jun 15, 15:50 UTCJun 15, 17:25 UTC1h 35m
2026-06-15 N728MG - Jun 15, 13:45 UTCJun 15, 15:10 UTC1h 25m
2026-06-14 N728MG - Jun 14, 20:40 UTCJun 14, 22:15 UTC1h 35m
2026-06-14 N728MG - Jun 14, 14:10 UTCJun 14, 17:10 UTC3h 0m
2026-06-13 N728MG - Jun 13, 17:40 UTCJun 13, 19:45 UTC2h 5m

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 N728MG page for operator, model, and routing details .

Mode-S A9C25E frequently asked

What is Mode-S code A9C25E?
A9C25E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N728MG.
Where is Mode-S A9C25E registered?
Mode-S code A9C25E 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 A9C25E 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 A9C25E, octal 52341136, decimal 11,125,342.
What flights does A9C25E operate?
Mode-S A9C25E has broadcast 1 distinct callsign, including N728MG.