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sensors Mode-S transponder

ACDFD3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N929CH · operated by METRO AVIATION INC

Hex
ACDFD3
Octal
53157723
Decimal
11,329,491
Country
US
Tail
N929CH
Type
PC12
No current signal · last broadcast 21h ago
Flights observed
197
Distinct callsigns
1
Country
US
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S ACDFD3.

Country allocation

The ICAO 24-bit address ACDFD3 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
N929CH - 197 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N929CH - Jul 17, 19:25 UTCJul 17, 20:20 UTC55m
2026-07-17 N929CH - Jul 17, 15:10 UTCJul 17, 15:29 UTC20m
2026-07-16 N929CH - Jul 16, 08:15 UTCJul 16, 09:30 UTC1h 15m
2026-07-16 N929CH COS → ABQ Jul 16, 05:30 UTCJul 16, 06:45 UTC1h 15m
2026-07-16 N929CH - Jul 16, 04:50 UTCJul 16, 05:10 UTC20m
2026-07-15 N929CH - Jul 15, 23:25 UTCJul 16, 00:10 UTC45m
2026-07-15 N929CH - Jul 15, 19:25 UTCJul 15, 20:10 UTC45m
2026-07-15 N929CH COS → APA Jul 15, 05:55 UTCJul 15, 06:15 UTC20m
2026-07-14 N929CH APA → COS Jul 14, 04:35 UTCJul 14, 04:50 UTC15m
2026-07-13 N929CH - Jul 13, 23:20 UTCJul 13, 23:45 UTC25m
2026-07-13 N929CH - Jul 13, 22:10 UTCJul 13, 22:40 UTC30m
2026-07-13 N929CH - Jul 13, 19:25 UTCJul 13, 20:05 UTC40m
2026-07-12 N929CH - Jul 12, 18:25 UTCJul 12, 19:15 UTC50m
2026-07-12 N929CH - Jul 12, 15:35 UTCJul 12, 16:20 UTC45m
2026-07-11 N929CH - Jul 11, 21:10 UTCJul 11, 21:45 UTC35m
2026-07-11 N929CH - Jul 11, 18:00 UTCJul 11, 18:30 UTC30m
2026-07-11 N929CH - Jul 11, 05:25 UTCJul 11, 05:55 UTC30m
2026-07-11 N929CH - Jul 11, 02:20 UTCJul 11, 03:01 UTC40m
2026-07-09 N929CH - Jul 9, 23:20 UTCJul 9, 23:50 UTC30m
2026-07-09 N929CH - Jul 9, 20:45 UTCJul 9, 21:40 UTC55m
2026-07-09 N929CH - Jul 9, 16:15 UTCJul 9, 17:25 UTC1h 10m
2026-07-09 N929CH - Jul 9, 07:30 UTCJul 9, 07:50 UTC20m
2026-07-09 N929CH - Jul 9, 06:35 UTCJul 9, 07:00 UTC25m
2026-07-09 N929CH - Jul 9, 04:30 UTCJul 9, 04:55 UTC25m
2026-07-09 N929CH - Jul 9, 03:45 UTCJul 9, 04:00 UTC15m
2026-07-08 N929CH - Jul 8, 16:45 UTCJul 8, 17:25 UTC40m
2026-07-08 N929CH - Jul 8, 14:50 UTCJul 8, 15:20 UTC30m
2026-07-08 N929CH - Jul 8, 07:10 UTCJul 8, 08:05 UTC55m
2026-07-08 N929CH - Jul 8, 04:45 UTCJul 8, 05:45 UTC1h 0m
2026-07-07 N929CH ABQ → APA Jul 7, 19:20 UTCJul 7, 20:45 UTC1h 25m
2026-07-07 N929CH - Jul 7, 17:25 UTCJul 7, 17:55 UTC30m
2026-07-07 N929CH - Jul 7, 13:55 UTCJul 7, 14:35 UTC40m
2026-07-07 N929CH - Jul 7, 09:45 UTCJul 7, 10:00 UTC15m
2026-07-07 N929CH - Jul 7, 06:35 UTCJul 7, 07:00 UTC25m
2026-07-07 N929CH APA → COS Jul 7, 05:55 UTCJul 7, 06:15 UTC20m
2026-07-06 N929CH - Jul 6, 13:25 UTCJul 6, 13:40 UTC15m
2026-07-06 N929CH - Jul 6, 12:45 UTCJul 6, 13:10 UTC25m
2026-07-06 N929CH - Jul 6, 10:40 UTCJul 6, 11:10 UTC30m
2026-07-06 N929CH - Jul 6, 09:55 UTCJul 6, 10:10 UTC15m
2026-07-05 N929CH - Jul 5, 08:50 UTCJul 5, 09:40 UTC50m
2026-07-05 N929CH - Jul 5, 07:20 UTCJul 5, 08:15 UTC55m
2026-07-03 N929CH - Jul 3, 23:30 UTCJul 3, 23:50 UTC20m
2026-07-03 N929CH - Jul 3, 21:50 UTCJul 3, 22:15 UTC25m
2026-07-03 N929CH - Jul 3, 04:30 UTCJul 3, 05:35 UTC1h 5m
2026-07-03 N929CH - Jul 3, 01:55 UTCJul 3, 02:50 UTC55m
2026-07-02 N929CH COS → APA Jul 2, 08:15 UTCJul 2, 08:30 UTC15m
2026-07-02 N929CH - Jul 2, 05:50 UTCJul 2, 06:15 UTC25m
2026-07-02 N929CH - Jul 2, 03:00 UTCJul 2, 03:40 UTC40m
2026-07-01 N929CH - Jul 1, 05:35 UTCJul 1, 06:20 UTC45m
2026-07-01 N929CH - Jul 1, 01:40 UTCJul 1, 02:00 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 N929CH page for operator, model, and routing details .

Mode-S ACDFD3 frequently asked

What is Mode-S code ACDFD3?
ACDFD3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N929CH.
Where is Mode-S ACDFD3 registered?
Mode-S code ACDFD3 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 ACDFD3 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACDFD3, octal 53157723, decimal 11,329,491.
What flights does ACDFD3 operate?
Mode-S ACDFD3 has broadcast 1 distinct callsign, including N929CH.