Apparatus

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sensors Mode-S transponder

A1C361

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N21200 · CESSNA TR182 Turbo Skylane RG · operated by PARAMUS FLYING CLUB INC

Hex
A1C361
Octal
50341541
Decimal
10,601,313
Country
US
Tail
N21200
Type
C82T
No current signal · last broadcast 3d ago
Flights observed
107
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A1C361.

Country allocation

The ICAO 24-bit address A1C361 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
N21200 - 107 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N21200 - Jul 26, 22:05 UTCJul 26, 22:15 UTC10m
2026-07-26 N21200 - Jul 26, 18:50 UTCJul 26, 20:55 UTC2h 5m
2026-07-26 N21200 - Jul 26, 11:50 UTCJul 26, 12:15 UTC25m
2026-07-23 N21200 - Jul 23, 17:05 UTCJul 23, 18:00 UTC55m
2026-07-23 N21200 - Jul 23, 12:05 UTCJul 23, 14:35 UTC2h 30m
2026-07-22 N21200 - Jul 22, 23:10 UTCJul 23, 00:45 UTC1h 35m
2026-07-22 N21200 - Jul 22, 19:25 UTCJul 22, 21:50 UTC2h 25m
2026-07-21 N21200 - Jul 21, 01:20 UTCJul 21, 02:35 UTC1h 15m
2026-07-19 N21200 - Jul 19, 21:40 UTCJul 19, 22:30 UTC50m
2026-07-19 N21200 - Jul 19, 20:15 UTCJul 19, 20:55 UTC40m
2026-07-17 N21200 CDW → MTN Jul 17, 22:29 UTCJul 18, 00:04 UTC1h 35m
2026-07-17 N21200 - Jul 17, 18:00 UTCJul 17, 21:20 UTC3h 20m
2026-07-14 N21200 - Jul 14, 18:35 UTCJul 14, 21:35 UTC3h 0m
2026-07-13 N21200 - Jul 13, 16:40 UTCJul 13, 19:15 UTC2h 35m
2026-07-13 N21200 - Jul 13, 00:10 UTCJul 13, 00:35 UTC25m
2026-07-12 N21200 - Jul 12, 23:05 UTCJul 12, 23:25 UTC20m
2026-07-12 N21200 - Jul 12, 14:10 UTCJul 12, 15:35 UTC1h 25m
2026-07-11 N21200 - Jul 11, 20:45 UTCJul 11, 21:40 UTC55m
2026-07-11 N21200 - Jul 11, 19:30 UTCJul 11, 20:00 UTC30m
2026-07-11 N21200 - Jul 11, 16:50 UTCJul 11, 17:25 UTC35m
2026-07-11 N21200 - Jul 11, 15:05 UTCJul 11, 15:25 UTC20m
2026-07-09 N21200 CDW → CDW Jul 9, 14:00 UTCJul 9, 14:30 UTC30m
2026-07-09 N21200 - Jul 9, 13:45 UTCJul 9, 13:55 UTC10m
2026-07-08 N21200 - Jul 8, 19:10 UTCJul 8, 19:55 UTC45m
2026-07-08 N21200 - Jul 8, 17:40 UTCJul 8, 18:20 UTC40m
2026-07-08 N21200 - Jul 8, 11:30 UTCJul 8, 12:45 UTC1h 15m
2026-07-02 N21200 - Jul 2, 01:30 UTCJul 2, 02:50 UTC1h 20m
2026-06-30 N21200 - Jun 30, 13:20 UTCJun 30, 13:50 UTC30m
2026-06-29 N21200 - Jun 29, 23:44 UTCJun 30, 00:20 UTC35m
2026-06-29 N21200 - Jun 29, 22:10 UTCJun 29, 23:05 UTC55m
2026-06-29 N21200 - Jun 29, 18:44 UTCJun 29, 19:49 UTC1h 5m
2026-06-29 N21200 - Jun 29, 00:44 UTCJun 29, 01:05 UTC20m
2026-06-28 N21200 - Jun 28, 23:25 UTCJun 29, 00:00 UTC35m
2026-06-28 N21200 - Jun 28, 21:24 UTCJun 28, 21:55 UTC30m
2026-06-28 N21200 - Jun 28, 15:24 UTCJun 28, 15:44 UTC20m
2026-06-27 N21200 - Jun 27, 22:29 UTCJun 28, 00:04 UTC1h 35m
2026-06-27 N21200 CDW → MMN Jun 27, 13:20 UTCJun 27, 14:39 UTC1h 20m
2026-06-26 N21200 - Jun 26, 21:39 UTCJun 26, 22:34 UTC55m
2026-06-24 N21200 - Jun 24, 18:09 UTCJun 24, 20:40 UTC2h 30m
2026-06-24 N21200 - Jun 24, 13:50 UTCJun 24, 15:24 UTC1h 35m
2026-06-21 N21200 - Jun 21, 21:49 UTCJun 21, 22:49 UTC1h 0m
2026-06-21 N21200 - Jun 21, 19:14 UTCJun 21, 20:24 UTC1h 10m
2026-06-21 N21200 - Jun 21, 16:14 UTCJun 21, 16:44 UTC30m
2026-06-21 N21200 - Jun 21, 13:15 UTCJun 21, 13:44 UTC30m
2026-06-21 N21200 - Jun 21, 00:19 UTCJun 21, 01:19 UTC1h 0m
2026-06-20 N21200 - Jun 20, 22:25 UTCJun 20, 23:25 UTC1h 0m
2026-06-18 N21200 - Jun 18, 01:30 UTCJun 18, 02:15 UTC45m
2026-06-17 N21200 - Jun 17, 23:05 UTCJun 17, 23:45 UTC40m
2026-06-17 N21200 - Jun 17, 19:25 UTCJun 17, 20:00 UTC35m
2026-06-16 N21200 - Jun 16, 18:20 UTCJun 16, 19:19 UTC1h 0m

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 N21200 page for operator, model, and routing details .

Mode-S A1C361 frequently asked

What is Mode-S code A1C361?
A1C361 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N21200.
Where is Mode-S A1C361 registered?
Mode-S code A1C361 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 A1C361 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 A1C361, octal 50341541, decimal 10,601,313.
What flights does A1C361 operate?
Mode-S A1C361 has broadcast 1 distinct callsign, including N21200.