sensors Mode-S transponder

ACD8C1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N927G · PIPER PA-28-140/150/160/180 · operated by ARCHER FLIGHT LLC

Hex
ACD8C1
Octal
53154301
Decimal
11,327,681
Country
US
Tail
N927G
Type
P28A
No current signal · last broadcast 2d ago
Flights observed
100
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S ACD8C1.

Country allocation

The ICAO 24-bit address ACD8C1 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
CXK389 - 100 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 CXK389 - Jul 15, 16:00 UTCJul 15, 17:00 UTC1h 0m
2026-07-15 CXK389 - Jul 15, 00:45 UTCJul 15, 01:05 UTC20m
2026-07-14 CXK389 - Jul 14, 23:45 UTCJul 15, 00:10 UTC25m
2026-07-14 CXK389 - Jul 14, 18:25 UTCJul 14, 19:10 UTC45m
2026-07-14 CXK389 - Jul 14, 15:55 UTCJul 14, 17:00 UTC1h 5m
2026-07-11 CXK389 - Jul 11, 20:15 UTCJul 11, 20:45 UTC30m
2026-07-10 CXK389 - Jul 10, 21:10 UTCJul 10, 21:50 UTC40m
2026-07-10 CXK389 - Jul 10, 01:30 UTCJul 10, 02:00 UTC30m
2026-07-09 CXK389 - Jul 9, 19:50 UTCJul 9, 20:30 UTC40m
2026-07-09 CXK389 - Jul 9, 16:00 UTCJul 9, 16:10 UTC10m
2026-07-08 CXK389 MQY → MQY Jul 8, 12:55 UTCJul 8, 14:45 UTC1h 50m
2026-07-07 CXK389 - Jul 7, 15:40 UTCJul 7, 17:05 UTC1h 25m
2026-07-07 CXK389 - Jul 7, 12:40 UTCJul 7, 12:50 UTC10m
2026-07-06 CXK389 MQY → MQY Jul 6, 12:40 UTCJul 6, 14:05 UTC1h 25m
2026-07-02 CXK389 MQY → MQY Jul 2, 19:40 UTCJul 2, 19:55 UTC15m
2026-07-01 CXK389 - Jul 1, 18:45 UTCJul 1, 19:25 UTC40m
2026-07-01 CXK389 - Jul 1, 17:55 UTCJul 1, 18:10 UTC15m
2026-06-30 CXK389 - Jun 30, 20:50 UTCJun 30, 22:20 UTC1h 30m
2026-06-30 CXK389 - Jun 30, 16:15 UTCJun 30, 17:00 UTC45m
2026-06-30 CXK389 - Jun 30, 01:25 UTCJun 30, 01:35 UTC11m
2026-06-30 CXK389 - Jun 30, 00:00 UTCJun 30, 00:20 UTC20m
2026-06-25 CXK389 - Jun 25, 19:15 UTCJun 25, 20:59 UTC1h 45m
2026-06-25 CXK389 - Jun 25, 16:55 UTCJun 25, 17:25 UTC30m
2026-06-25 CXK389 - Jun 25, 16:09 UTCJun 25, 16:20 UTC10m
2026-06-23 CXK389 - Jun 23, 16:20 UTCJun 23, 17:59 UTC1h 40m
2026-06-23 CXK389 - Jun 23, 15:15 UTCJun 23, 15:24 UTC10m
2026-06-23 CXK389 - Jun 23, 13:24 UTCJun 23, 13:39 UTC15m
2026-06-19 CXK389 - Jun 19, 21:09 UTCJun 19, 22:39 UTC1h 30m
2026-06-19 CXK389 MQY → MQY Jun 19, 16:39 UTCJun 19, 19:14 UTC2h 35m
2026-06-17 CXK389 - Jun 17, 18:15 UTCJun 17, 19:15 UTC1h 0m
2026-06-13 CXK389 - Jun 13, 12:55 UTCJun 13, 14:05 UTC1h 10m
2026-06-10 CXK389 - Jun 10, 13:20 UTCJun 10, 14:15 UTC55m
2026-06-04 CXK389 - Jun 4, 15:25 UTCJun 4, 17:05 UTC1h 40m
2026-06-04 CXK389 - Jun 4, 13:05 UTCJun 4, 14:10 UTC1h 5m
2026-06-03 CXK389 - Jun 3, 13:40 UTCJun 3, 13:55 UTC15m
2026-06-03 CXK389 - Jun 3, 12:45 UTCJun 3, 13:05 UTC20m
2026-06-03 CXK389 - Jun 3, 00:20 UTCJun 3, 00:45 UTC25m
2026-06-02 CXK389 - Jun 2, 23:05 UTCJun 2, 23:50 UTC45m
2026-06-02 CXK389 - Jun 2, 18:10 UTCJun 2, 19:40 UTC1h 30m
2026-05-29 CXK389 - May 29, 19:10 UTCMay 29, 19:20 UTC10m
2026-05-29 CXK389 - May 29, 18:15 UTCMay 29, 18:25 UTC10m
2026-05-29 CXK389 - May 29, 14:35 UTCMay 29, 16:35 UTC2h 0m
2026-05-29 CXK389 - May 29, 13:20 UTCMay 29, 14:00 UTC40m
2026-05-19 CXK389 MQY → MQY May 19, 15:45 UTCMay 19, 16:45 UTC1h 0m
2026-05-18 CXK389 - May 18, 13:15 UTCMay 18, 14:30 UTC1h 15m
2026-05-15 CXK389 - May 15, 22:55 UTCMay 15, 23:10 UTC15m
2026-05-15 CXK389 - May 15, 19:55 UTCMay 15, 22:20 UTC2h 25m
2026-05-15 CXK389 - May 15, 15:35 UTCMay 15, 17:05 UTC1h 30m
2026-05-15 CXK389 - May 15, 14:25 UTCMay 15, 14:40 UTC15m
2026-05-15 CXK389 - May 15, 13:05 UTCMay 15, 13:25 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 N927G page for operator, model, and routing details .

Mode-S ACD8C1 frequently asked

What is Mode-S code ACD8C1?
ACD8C1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N927G.
Where is Mode-S ACD8C1 registered?
Mode-S code ACD8C1 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 ACD8C1 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD8C1, octal 53154301, decimal 11,327,681.
What flights does ACD8C1 operate?
Mode-S ACD8C1 has broadcast 1 distinct callsign, including CXK389.