Apparatus

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sensors Mode-S transponder

ACD8F6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N927JC · PILATUS PC-12 · operated by M13 HOLDING LLC

Hex
ACD8F6
Octal
53154366
Decimal
11,327,734
Country
US
Tail
N927JC
Type
PC12
No current signal · last broadcast 7d ago
Flights observed
77
Distinct callsigns
2
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S ACD8F6.

Country allocation

The ICAO 24-bit address ACD8F6 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 2 distinct

Callsign Airline Flights Last seen
SIS927 - 75 2026-07-07
N927JC - 2 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-07 SIS927 BFI → VNY Jul 7, 03:20 UTCJul 7, 07:00 UTC3h 40m
2026-07-06 SIS927 VNY → BFI Jul 6, 18:20 UTCJul 6, 22:15 UTC3h 55m
2026-07-02 N927JC PAO → VNY Jul 2, 03:35 UTCJul 2, 04:45 UTC1h 10m
2026-07-01 N927JC VNY → PAO Jul 1, 18:05 UTCJul 1, 19:30 UTC1h 25m
2026-06-28 SIS927 - Jun 28, 00:50 UTCJun 28, 01:50 UTC1h 0m
2026-06-27 SIS927 - Jun 27, 22:35 UTCJun 27, 23:45 UTC1h 10m
2026-06-27 SIS927 VNY → HHR Jun 27, 20:44 UTCJun 27, 20:59 UTC15m
2026-06-24 SIS927 - Jun 24, 20:44 UTCJun 24, 20:54 UTC10m
2026-06-24 SIS927 - Jun 24, 18:05 UTCJun 24, 19:29 UTC1h 25m
2026-06-24 SIS927 - Jun 24, 15:39 UTCJun 24, 16:40 UTC1h 0m
2026-06-19 SIS927 BFI → VNY Jun 19, 23:25 UTCJun 20, 03:04 UTC3h 40m
2026-06-19 SIS927 - Jun 19, 15:54 UTCJun 19, 16:34 UTC40m
2026-06-19 SIS927 - Jun 19, 14:34 UTCJun 19, 15:09 UTC35m
2026-06-18 SIS927 VNY → BFI Jun 18, 21:00 UTCJun 19, 00:34 UTC3h 34m
2026-06-16 SIS927 OAK → VNY Jun 16, 23:35 UTCJun 17, 01:00 UTC1h 25m
2026-06-16 SIS927 - Jun 16, 18:35 UTCJun 16, 19:05 UTC30m
2026-06-16 SIS927 - Jun 16, 16:05 UTCJun 16, 17:19 UTC1h 15m
2026-06-15 SIS927 - Jun 15, 21:04 UTCJun 15, 22:35 UTC1h 30m
2026-06-15 SIS927 VNY → PAO Jun 15, 16:35 UTCJun 15, 17:50 UTC1h 15m
2026-06-12 SIS927 SBA → VNY Jun 12, 01:50 UTCJun 12, 02:20 UTC30m
2026-06-12 SIS927 - Jun 12, 00:25 UTCJun 12, 01:25 UTC1h 1m
2026-06-11 SIS927 - Jun 11, 16:55 UTCJun 11, 17:50 UTC55m
2026-06-11 SIS927 VNY → SBA Jun 11, 15:40 UTCJun 11, 16:10 UTC30m
2026-06-09 SIS927 - Jun 9, 09:30 UTCJun 9, 10:35 UTC1h 5m
2026-06-09 SIS927 VNY → SJC Jun 9, 07:55 UTCJun 9, 09:10 UTC1h 15m
2026-06-09 SIS927 - Jun 9, 00:15 UTCJun 9, 01:25 UTC1h 10m
2026-06-08 SIS927 VNY → PAO Jun 8, 22:05 UTCJun 8, 23:25 UTC1h 20m
2026-06-08 SIS927 - Jun 8, 00:50 UTCJun 8, 01:30 UTC40m
2026-06-07 SIS927 - Jun 7, 22:55 UTCJun 7, 23:50 UTC55m
2026-06-07 SIS927 - Jun 7, 15:55 UTCJun 7, 17:00 UTC1h 5m
2026-06-06 SIS927 - Jun 6, 23:15 UTCJun 6, 23:55 UTC40m
2026-06-04 SIS927 - Jun 4, 22:55 UTCJun 4, 23:20 UTC25m
2026-06-04 SIS927 VNY → SBA Jun 4, 20:00 UTCJun 4, 22:00 UTC2h 0m
2026-05-19 SIS927 LAS → VNY May 19, 02:40 UTCMay 19, 03:50 UTC1h 10m
2026-05-19 SIS927 - May 19, 00:50 UTCMay 19, 01:35 UTC45m
2026-05-19 SIS927 - May 19, 00:00 UTCMay 19, 00:15 UTC15m
2026-05-18 SIS927 - May 18, 15:35 UTCMay 18, 16:05 UTC30m
2026-05-17 SIS927 - May 17, 22:05 UTCMay 17, 23:00 UTC55m
2026-05-17 SIS927 - May 17, 19:55 UTCMay 17, 21:10 UTC1h 15m
2026-05-17 SIS927 - May 17, 18:30 UTCMay 17, 19:10 UTC40m
2026-05-15 SIS927 - May 15, 05:05 UTCMay 15, 06:25 UTC1h 20m
2026-05-15 SIS927 - May 15, 04:05 UTCMay 15, 04:35 UTC30m
2026-05-13 SIS927 - May 13, 15:30 UTCMay 13, 17:40 UTC2h 10m
2026-05-12 SIS927 - May 12, 23:35 UTCMay 13, 00:50 UTC1h 15m
2026-05-12 SIS927 - May 12, 20:50 UTCMay 12, 22:20 UTC1h 30m
2026-05-12 SIS927 - May 12, 19:25 UTCMay 12, 19:40 UTC15m
2026-05-10 SIS927 LAS → VNY May 10, 08:30 UTCMay 10, 09:30 UTC1h 0m
2026-05-10 SIS927 - May 10, 07:04 UTCMay 10, 08:05 UTC1h 0m
2026-05-09 SIS927 - May 9, 22:20 UTCMay 9, 22:55 UTC35m
2026-05-09 SIS927 - May 9, 01:35 UTCMay 9, 02:10 UTC35m

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 N927JC page for operator, model, and routing details .

Mode-S ACD8F6 frequently asked

What is Mode-S code ACD8F6?
ACD8F6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N927JC.
Where is Mode-S ACD8F6 registered?
Mode-S code ACD8F6 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 ACD8F6 broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD8F6, octal 53154366, decimal 11,327,734.
What flights does ACD8F6 operate?
Mode-S ACD8F6 has broadcast 2 distinct callsigns, including SIS927, N927JC.