Apparatus

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sensors Mode-S transponder

A984C1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N712PA · DIAMOND DA-40 Club Star · operated by AIRMART INC

Hex
A984C1
Octal
52302301
Decimal
11,109,569
Country
US
Tail
N712PA
Type
DA40
No current signal · last broadcast 4h ago
Flights observed
177
Distinct callsigns
1
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A984C1.

Country allocation

The ICAO 24-bit address A984C1 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
N712PA - 177 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N712PA LGU → LGU Jul 14, 17:20 UTCJul 14, 18:40 UTC1h 20m
2026-07-14 N712PA LGU → LGU Jul 14, 13:40 UTCJul 14, 14:40 UTC1h 0m
2026-07-13 N712PA LGU → LGU Jul 13, 18:30 UTCJul 13, 19:25 UTC55m
2026-07-13 N712PA LGU → LGU Jul 13, 15:50 UTCJul 13, 17:25 UTC1h 35m
2026-07-11 N712PA LGU → LGU Jul 11, 15:15 UTCJul 11, 16:20 UTC1h 5m
2026-07-10 N712PA LGU → LGU Jul 10, 16:30 UTCJul 10, 18:30 UTC2h 0m
2026-07-10 N712PA - Jul 10, 15:45 UTCJul 10, 15:55 UTC10m
2026-07-10 N712PA - Jul 10, 12:35 UTCJul 10, 12:40 UTC5m
2026-07-09 N712PA - Jul 9, 21:30 UTCJul 9, 21:45 UTC15m
2026-07-09 N712PA - Jul 9, 20:15 UTCJul 9, 20:35 UTC20m
2026-07-09 N712PA - Jul 9, 16:20 UTCJul 9, 16:35 UTC15m
2026-07-09 N712PA - Jul 9, 14:15 UTCJul 9, 14:20 UTC5m
2026-07-08 N712PA LGU → LGU Jul 8, 18:45 UTCJul 8, 19:55 UTC1h 10m
2026-07-08 N712PA LGU → LGU Jul 8, 17:20 UTCJul 8, 17:45 UTC25m
2026-07-08 N712PA - Jul 8, 16:05 UTCJul 8, 16:15 UTC10m
2026-07-08 N712PA - Jul 8, 14:45 UTCJul 8, 14:50 UTC5m
2026-07-07 N712PA - Jul 7, 20:10 UTCJul 7, 20:35 UTC25m
2026-07-07 N712PA LGU → LGU Jul 7, 19:50 UTCJul 7, 20:05 UTC15m
2026-07-07 N712PA LGU → LGU Jul 7, 15:50 UTCJul 7, 17:00 UTC1h 10m
2026-07-06 N712PA LGU → LGU Jul 6, 18:50 UTCJul 6, 19:30 UTC40m
2026-07-06 N712PA LGU → LGU Jul 6, 16:50 UTCJul 6, 18:10 UTC1h 20m
2026-07-06 N712PA LGU → LGU Jul 6, 14:05 UTCJul 6, 14:50 UTC45m
2026-07-02 N712PA LGU → LGU Jul 2, 16:25 UTCJul 2, 17:25 UTC1h 0m
2026-07-01 N712PA LGU → LGU Jul 1, 18:05 UTCJul 1, 19:15 UTC1h 10m
2026-07-01 N712PA LGU → LGU Jul 1, 00:30 UTCJul 1, 01:55 UTC1h 25m
2026-06-30 N712PA LGU → LGU Jun 30, 20:05 UTCJun 30, 21:20 UTC1h 15m
2026-06-30 N712PA LGU → LGU Jun 30, 17:40 UTCJun 30, 19:00 UTC1h 20m
2026-06-25 N712PA LGU → LGU Jun 25, 15:34 UTCJun 25, 16:45 UTC1h 10m
2026-06-24 N712PA LGU → LGU Jun 24, 01:24 UTCJun 24, 01:44 UTC20m
2026-06-23 N712PA - Jun 23, 22:44 UTCJun 23, 22:55 UTC10m
2026-06-23 N712PA LGU → LGU Jun 23, 21:34 UTCJun 23, 21:54 UTC20m
2026-06-23 N712PA LGU → LGU Jun 23, 18:55 UTCJun 23, 20:04 UTC1h 10m
2026-06-23 N712PA LGU → LGU Jun 23, 15:44 UTCJun 23, 15:55 UTC10m
2026-06-23 N712PA LGU → LGU Jun 23, 14:39 UTCJun 23, 14:59 UTC20m
2026-06-20 N712PA LGU → LGU Jun 20, 16:24 UTCJun 20, 16:34 UTC10m
2026-06-20 N712PA LGU → LGU Jun 20, 14:54 UTCJun 20, 16:19 UTC1h 25m
2026-06-19 N712PA LGU → LGU Jun 19, 23:44 UTCJun 20, 01:05 UTC1h 20m
2026-06-19 N712PA LGU → LGU Jun 19, 20:14 UTCJun 19, 20:19 UTC5m
2026-06-18 N712PA LGU → LGU Jun 18, 20:35 UTCJun 18, 21:25 UTC50m
2026-06-18 N712PA LGU → LGU Jun 18, 17:55 UTCJun 18, 18:45 UTC50m
2026-06-18 N712PA LGU → LGU Jun 18, 15:00 UTCJun 18, 15:05 UTC5m
2026-06-18 N712PA LGU → LGU Jun 18, 13:50 UTCJun 18, 14:50 UTC1h 0m
2026-06-18 N712PA LGU → LGU Jun 18, 04:50 UTCJun 18, 05:30 UTC40m
2026-06-18 N712PA - Jun 18, 03:50 UTCJun 18, 04:20 UTC30m
2026-06-17 N712PA LGU → LGU Jun 17, 17:50 UTCJun 17, 18:35 UTC45m
2026-06-17 N712PA LGU → LGU Jun 17, 14:10 UTCJun 17, 14:40 UTC30m
2026-06-17 N712PA LGU → LGU Jun 17, 04:00 UTCJun 17, 05:45 UTC1h 45m
2026-06-16 N712PA LGU → LGU Jun 16, 22:10 UTCJun 16, 22:45 UTC35m
2026-06-16 N712PA LGU → LGU Jun 16, 15:15 UTCJun 16, 16:50 UTC1h 35m
2026-06-16 N712PA - Jun 16, 02:04 UTCJun 16, 02:34 UTC30m

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 N712PA page for operator, model, and routing details .

Mode-S A984C1 frequently asked

What is Mode-S code A984C1?
A984C1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N712PA.
Where is Mode-S A984C1 registered?
Mode-S code A984C1 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 A984C1 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A984C1, octal 52302301, decimal 11,109,569.
What flights does A984C1 operate?
Mode-S A984C1 has broadcast 1 distinct callsign, including N712PA.