Apparatus

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sensors Mode-S transponder

A1D00C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N216CP · CESSNA T206 Turbo Stationair · operated by CIVIL AIR PATROL

Hex
A1D00C
Octal
50350014
Decimal
10,604,556
Country
US
Tail
N216CP
Type
T206
No current signal · last broadcast 5d ago
Flights observed
73
Distinct callsigns
1
Country
US
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S A1D00C.

Country allocation

The ICAO 24-bit address A1D00C 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
CAP416 - 73 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 CAP416 FUL → BFL Jul 23, 02:45 UTCJul 23, 04:05 UTC1h 20m
2026-07-22 CAP416 - Jul 22, 00:30 UTCJul 22, 01:35 UTC1h 5m
2026-07-18 CAP416 - Jul 18, 23:50 UTCJul 19, 00:45 UTC55m
2026-07-18 CAP416 HMT → FUL Jul 18, 22:05 UTCJul 18, 22:35 UTC30m
2026-07-18 CAP416 - Jul 18, 21:10 UTCJul 18, 21:45 UTC35m
2026-07-18 CAP416 - Jul 18, 19:50 UTCJul 18, 20:20 UTC30m
2026-07-18 CAP416 FUL → HMT Jul 18, 18:55 UTCJul 18, 19:30 UTC35m
2026-07-18 CAP416 HMT → FUL Jul 18, 17:20 UTCJul 18, 17:50 UTC30m
2026-07-18 CAP416 - Jul 18, 16:25 UTCJul 18, 17:00 UTC35m
2026-07-13 CAP416 FUL → FUL Jul 13, 18:15 UTCJul 13, 19:15 UTC1h 0m
2026-07-13 CAP416 - Jul 13, 16:40 UTCJul 13, 17:40 UTC1h 0m
2026-07-12 CAP416 RAL → FUL Jul 12, 23:30 UTCJul 12, 23:50 UTC20m
2026-07-09 CAP416 RAL → RAL Jul 9, 15:55 UTCJul 9, 16:45 UTC50m
2026-07-05 CAP416 - Jul 5, 18:55 UTCJul 5, 19:15 UTC20m
2026-07-05 CAP416 - Jul 5, 16:45 UTCJul 5, 17:25 UTC40m
2026-07-05 CAP416 RAL → FUL Jul 5, 14:50 UTCJul 5, 15:20 UTC30m
2026-07-03 CAP416 - Jul 3, 18:50 UTCJul 3, 20:00 UTC1h 10m
2026-07-03 CAP416 RAL → HMT Jul 3, 18:05 UTCJul 3, 18:35 UTC30m
2026-07-02 CAP416 RAL → RAL Jul 2, 20:15 UTCJul 2, 21:15 UTC1h 0m
2026-07-01 CAP416 RAL → RAL Jul 1, 23:45 UTCJul 2, 00:45 UTC1h 0m
2026-07-01 CAP416 HMT → RAL Jul 1, 20:35 UTCJul 1, 21:10 UTC35m
2026-07-01 CAP416 RAL → HMT Jul 1, 19:55 UTCJul 1, 20:25 UTC30m
2026-06-28 CAP416 - Jun 28, 22:04 UTCJun 28, 23:54 UTC1h 50m
2026-06-26 CAP416 - Jun 26, 21:55 UTCJun 26, 22:55 UTC1h 0m
2026-06-25 CAP416 - Jun 25, 21:10 UTCJun 25, 21:25 UTC15m
2026-06-25 CAP416 - Jun 25, 20:14 UTCJun 25, 20:34 UTC20m
2026-06-25 CAP416 - Jun 25, 18:19 UTCJun 25, 18:29 UTC10m
2026-06-25 CAP416 - Jun 25, 16:59 UTCJun 25, 17:44 UTC45m
2026-06-17 CAP416 - Jun 17, 21:35 UTCJun 17, 22:15 UTC40m
2026-06-17 CAP416 RAL → SQA Jun 17, 19:50 UTCJun 17, 21:05 UTC1h 15m
2026-06-14 CAP416 - Jun 14, 23:35 UTCJun 14, 23:54 UTC20m
2026-06-14 CAP416 - Jun 14, 21:00 UTCJun 14, 21:40 UTC40m
2026-06-14 CAP416 - Jun 14, 16:50 UTCJun 14, 17:25 UTC35m
2026-06-14 CAP416 - Jun 14, 14:00 UTCJun 14, 14:55 UTC55m
2026-06-13 CAP416 - Jun 13, 22:05 UTCJun 13, 23:00 UTC55m
2026-06-13 CAP416 RBK → RBK Jun 13, 18:30 UTCJun 13, 19:25 UTC55m
2026-06-12 CAP416 RAL → RBK Jun 12, 18:25 UTCJun 12, 18:45 UTC20m
2026-06-06 CAP416 - Jun 6, 22:20 UTCJun 6, 22:25 UTC5m
2026-06-06 CAP416 - Jun 6, 21:25 UTCJun 6, 21:50 UTC25m
2026-06-06 CAP416 - Jun 6, 20:30 UTCJun 6, 21:00 UTC30m
2026-06-06 CAP416 - Jun 6, 19:14 UTCJun 6, 19:34 UTC20m
2026-06-06 CAP416 RAL → RIR Jun 6, 18:25 UTCJun 6, 18:29 UTC5m
2026-06-05 CAP416 RAL → RAL Jun 5, 20:05 UTCJun 5, 21:40 UTC1h 35m
2026-06-03 CAP416 - Jun 3, 01:55 UTCJun 3, 02:15 UTC20m
2026-06-02 CAP416 - Jun 2, 23:15 UTCJun 2, 23:40 UTC25m
2026-06-02 CAP416 HMT → RBK Jun 2, 20:45 UTCJun 2, 20:55 UTC10m
2026-06-02 CAP416 - Jun 2, 19:25 UTCJun 2, 19:35 UTC10m
2026-06-02 CAP416 - Jun 2, 18:25 UTCJun 2, 18:40 UTC15m
2026-05-31 CAP416 BFL → RAL May 31, 20:00 UTCMay 31, 21:40 UTC1h 40m
2026-05-31 CAP416 BFL → BFL May 31, 16:05 UTCMay 31, 17:15 UTC1h 10m

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 N216CP page for operator, model, and routing details .

Mode-S A1D00C frequently asked

What is Mode-S code A1D00C?
A1D00C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N216CP.
Where is Mode-S A1D00C registered?
Mode-S code A1D00C 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 A1D00C broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1D00C, octal 50350014, decimal 10,604,556.
What flights does A1D00C operate?
Mode-S A1D00C has broadcast 1 distinct callsign, including CAP416.