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sensors Mode-S transponder

AC9FF5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N912VA · VANS RV-12 · operated by VANS AIRCRAFT INC

Hex
AC9FF5
Octal
53117765
Decimal
11,313,141
Country
US
Tail
N912VA
Type
RV12
No current signal · last broadcast 3d ago
Flights observed
97
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S AC9FF5.

Country allocation

The ICAO 24-bit address AC9FF5 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
N912VA - 97 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 N912VA - Jul 21, 11:55 UTCJul 21, 13:00 UTC1h 5m
2026-07-19 N912VA - Jul 19, 23:45 UTCJul 20, 01:40 UTC1h 55m
2026-07-19 N912VA - Jul 19, 22:30 UTCJul 19, 22:55 UTC25m
2026-07-19 N912VA - Jul 19, 19:30 UTCJul 19, 19:55 UTC25m
2026-07-19 N912VA - Jul 19, 17:45 UTCJul 19, 18:05 UTC20m
2026-07-17 N912VA - Jul 17, 19:15 UTCJul 17, 19:55 UTC40m
2026-07-17 N912VA - Jul 17, 17:20 UTCJul 17, 17:30 UTC10m
2026-07-17 N912VA - Jul 17, 15:20 UTCJul 17, 16:19 UTC1h 0m
2026-07-16 N912VA - Jul 16, 22:55 UTCJul 16, 23:20 UTC25m
2026-07-15 N912VA - Jul 15, 00:30 UTCJul 15, 00:50 UTC20m
2026-07-14 N912VA - Jul 14, 02:15 UTCJul 14, 04:05 UTC1h 50m
2026-07-14 N912VA - Jul 14, 01:10 UTCJul 14, 01:40 UTC30m
2026-07-13 N912VA - Jul 13, 20:55 UTCJul 13, 21:20 UTC25m
2026-07-10 N912VA - Jul 10, 23:45 UTCJul 11, 00:30 UTC45m
2026-07-10 N912VA - Jul 10, 16:40 UTCJul 10, 17:00 UTC20m
2026-07-09 N912VA - Jul 9, 19:15 UTCJul 9, 20:20 UTC1h 5m
2026-07-09 N912VA - Jul 9, 00:40 UTCJul 9, 01:25 UTC45m
2026-07-08 N912VA - Jul 8, 04:45 UTCJul 8, 05:10 UTC25m
2026-07-08 N912VA - Jul 8, 01:55 UTCJul 8, 02:15 UTC20m
2026-07-03 N912VA - Jul 3, 18:15 UTCJul 3, 19:30 UTC1h 15m
2026-06-27 N912VA - Jun 27, 00:00 UTCJun 27, 01:09 UTC1h 10m
2026-06-26 N912VA - Jun 26, 20:29 UTCJun 26, 20:44 UTC15m
2026-06-26 N912VA - Jun 26, 17:25 UTCJun 26, 18:09 UTC45m
2026-06-26 N912VA - Jun 26, 16:35 UTCJun 26, 16:54 UTC20m
2026-06-26 N912VA - Jun 26, 14:39 UTCJun 26, 15:34 UTC55m
2026-06-25 N912VA - Jun 25, 23:24 UTCJun 25, 23:39 UTC15m
2026-06-25 N912VA - Jun 25, 21:15 UTCJun 25, 22:10 UTC55m
2026-06-23 N912VA - Jun 23, 19:39 UTCJun 23, 20:15 UTC35m
2026-06-20 N912VA - Jun 20, 20:55 UTCJun 20, 21:55 UTC1h 0m
2026-06-20 N912VA - Jun 20, 16:29 UTCJun 20, 17:49 UTC1h 20m
2026-06-19 N912VA - Jun 19, 17:29 UTCJun 19, 18:09 UTC40m
2026-06-18 N912VA - Jun 18, 21:30 UTCJun 18, 21:50 UTC20m
2026-06-18 N912VA - Jun 18, 18:15 UTCJun 18, 20:00 UTC1h 45m
2026-06-18 N912VA - Jun 18, 02:20 UTCJun 18, 02:35 UTC15m
2026-06-18 N912VA - Jun 18, 01:05 UTCJun 18, 01:15 UTC10m
2026-06-15 N912VA - Jun 15, 22:45 UTCJun 15, 23:54 UTC1h 10m
2026-06-13 N912VA - Jun 13, 01:30 UTCJun 13, 02:30 UTC1h 0m
2026-06-12 N912VA - Jun 12, 21:00 UTCJun 13, 00:05 UTC3h 5m
2026-06-12 N912VA - Jun 12, 17:40 UTCJun 12, 19:40 UTC2h 0m
2026-06-11 N912VA - Jun 11, 21:25 UTCJun 11, 21:55 UTC30m
2026-06-07 N912VA - Jun 7, 01:35 UTCJun 7, 02:35 UTC1h 0m
2026-06-03 N912VA - Jun 3, 22:45 UTCJun 3, 23:10 UTC25m
2026-06-03 N912VA - Jun 3, 21:20 UTCJun 3, 21:40 UTC20m
2026-05-28 N912VA - May 28, 21:05 UTCMay 28, 21:35 UTC30m
2026-05-26 N912VA - May 26, 23:39 UTCMay 27, 00:10 UTC30m
2026-05-09 N912VA - May 9, 02:20 UTCMay 9, 04:15 UTC1h 55m
2026-05-08 N912VA - May 8, 23:40 UTCMay 9, 01:25 UTC1h 45m
2026-05-08 N912VA - May 8, 20:00 UTCMay 8, 23:05 UTC3h 5m
2026-05-08 N912VA - May 8, 18:30 UTCMay 8, 18:45 UTC15m
2026-05-07 N912VA - May 7, 19:40 UTCMay 7, 20:25 UTC45m

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 N912VA page for operator, model, and routing details .

Mode-S AC9FF5 frequently asked

What is Mode-S code AC9FF5?
AC9FF5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N912VA.
Where is Mode-S AC9FF5 registered?
Mode-S code AC9FF5 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 AC9FF5 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 AC9FF5, octal 53117765, decimal 11,313,141.
What flights does AC9FF5 operate?
Mode-S AC9FF5 has broadcast 1 distinct callsign, including N912VA.