Apparatus

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sensors Mode-S transponder

A4C6A8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N407AF · PIPER PA-30 Twin Comanche · operated by RUFF BRENT M

Hex
A4C6A8
Octal
51143250
Decimal
10,798,760
Country
US
Tail
N407AF
Type
PA30
No current signal · last broadcast 1d ago
Flights observed
90
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A4C6A8.

Country allocation

The ICAO 24-bit address A4C6A8 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
N407AF - 90 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 N407AF VNY → VNY Jul 16, 22:19 UTCJul 16, 23:49 UTC1h 30m
2026-07-16 N407AF - Jul 16, 01:00 UTCJul 16, 02:45 UTC1h 45m
2026-07-15 N407AF - Jul 15, 23:00 UTCJul 16, 00:05 UTC1h 5m
2026-07-15 N407AF - Jul 15, 18:15 UTCJul 15, 19:15 UTC1h 0m
2026-07-15 N407AF VNY → APC Jul 15, 15:35 UTCJul 15, 17:40 UTC2h 5m
2026-07-07 N407AF VNY → VNY Jul 7, 18:10 UTCJul 7, 18:50 UTC40m
2026-07-03 N407AF VNY → VNY Jul 3, 02:05 UTCJul 3, 02:15 UTC10m
2026-07-03 N407AF VNY → VNY Jul 3, 01:10 UTCJul 3, 02:00 UTC50m
2026-07-01 N407AF VNY → VNY Jul 1, 18:45 UTCJul 1, 19:30 UTC45m
2026-06-30 N407AF - Jun 30, 23:05 UTCJul 1, 00:50 UTC1h 45m
2026-06-25 N407AF VNY → VNY Jun 25, 23:24 UTCJun 25, 23:49 UTC25m
2026-06-24 N407AF - Jun 24, 23:04 UTCJun 24, 23:40 UTC35m
2026-06-24 N407AF - Jun 24, 19:49 UTCJun 24, 20:54 UTC1h 5m
2026-06-24 N407AF VNY → VNY Jun 24, 16:34 UTCJun 24, 17:40 UTC1h 5m
2026-06-24 N407AF VNY → VNY Jun 24, 02:20 UTCJun 24, 03:29 UTC1h 10m
2026-06-23 N407AF VNY → VNY Jun 23, 21:20 UTCJun 23, 22:44 UTC1h 25m
2026-06-23 N407AF VNY → VNY Jun 23, 01:15 UTCJun 23, 01:59 UTC45m
2026-06-17 N407AF VNY → VNY Jun 17, 01:10 UTCJun 17, 02:00 UTC50m
2026-06-16 N407AF - Jun 16, 20:30 UTCJun 16, 21:40 UTC1h 10m
2026-06-16 N407AF - Jun 16, 00:29 UTCJun 16, 01:19 UTC50m
2026-06-15 N407AF - Jun 15, 23:39 UTCJun 15, 23:50 UTC10m
2026-06-15 N407AF VNY → SMX Jun 15, 22:25 UTCJun 15, 23:30 UTC1h 5m
2026-06-12 N407AF VNY → VNY Jun 12, 16:10 UTCJun 12, 17:25 UTC1h 15m
2026-06-12 N407AF - Jun 12, 00:10 UTCJun 12, 01:15 UTC1h 6m
2026-06-10 N407AF VNY → VNY Jun 10, 22:15 UTCJun 10, 23:40 UTC1h 25m
2026-06-10 N407AF VNY → VNY Jun 10, 17:55 UTCJun 10, 19:20 UTC1h 25m
2026-06-10 N407AF VNY → VNY Jun 10, 00:50 UTCJun 10, 01:55 UTC1h 5m
2026-06-09 N407AF - Jun 9, 19:40 UTCJun 9, 21:15 UTC1h 35m
2026-06-09 N407AF - Jun 9, 17:40 UTCJun 9, 19:05 UTC1h 25m
2026-06-09 N407AF - Jun 9, 16:45 UTCJun 9, 16:55 UTC10m
2026-06-05 N407AF - Jun 5, 20:55 UTCJun 5, 21:25 UTC30m
2026-06-05 N407AF - Jun 5, 18:40 UTCJun 5, 20:05 UTC1h 25m
2026-06-05 N407AF VNY → LVK Jun 5, 16:00 UTCJun 5, 17:45 UTC1h 45m
2026-06-05 N407AF - Jun 5, 01:45 UTCJun 5, 02:30 UTC45m
2026-06-04 N407AF VNY → VNY Jun 4, 18:25 UTCJun 4, 19:05 UTC40m
2026-06-04 N407AF VNY → VNY Jun 4, 16:20 UTCJun 4, 17:05 UTC45m
2026-06-04 N407AF VNY → VNY Jun 4, 14:05 UTCJun 4, 15:00 UTC55m
2026-06-04 N407AF - Jun 4, 01:05 UTCJun 4, 02:10 UTC1h 5m
2026-06-03 N407AF VNY → VNY Jun 3, 20:30 UTCJun 3, 21:45 UTC1h 15m
2026-06-03 N407AF VNY → VNY Jun 3, 16:55 UTCJun 3, 17:40 UTC45m
2026-06-01 N407AF VNY → VNY Jun 1, 17:00 UTCJun 1, 17:55 UTC55m
2026-05-29 N407AF VNY → VNY May 29, 23:15 UTCMay 30, 00:45 UTC1h 30m
2026-05-29 N407AF VNY → VNY May 29, 19:50 UTCMay 29, 21:00 UTC1h 10m
2026-05-29 N407AF VNY → VNY May 29, 16:50 UTCMay 29, 17:50 UTC1h 0m
2026-05-28 N407AF VNY → VNY May 28, 17:50 UTCMay 28, 19:10 UTC1h 20m
2026-05-26 N407AF VNY → VNY May 26, 17:04 UTCMay 26, 17:25 UTC20m
2026-05-25 N407AF - May 25, 20:55 UTCMay 25, 21:09 UTC15m
2026-05-25 N407AF - May 25, 19:15 UTCMay 25, 20:09 UTC55m
2026-05-25 N407AF - May 25, 14:35 UTCMay 25, 15:00 UTC25m
2026-05-24 N407AF - May 24, 18:45 UTCMay 24, 19:05 UTC20m

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 N407AF page for operator, model, and routing details .

Mode-S A4C6A8 frequently asked

What is Mode-S code A4C6A8?
A4C6A8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N407AF.
Where is Mode-S A4C6A8 registered?
Mode-S code A4C6A8 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 A4C6A8 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4C6A8, octal 51143250, decimal 10,798,760.
What flights does A4C6A8 operate?
Mode-S A4C6A8 has broadcast 1 distinct callsign, including N407AF.