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sensors Mode-S transponder

AD554C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9584J · PIPER PA-28-140/150/160/180 · operated by ROSS PAUL

Hex
AD554C
Octal
53252514
Decimal
11,359,564
Country
US
Tail
N9584J
Type
P28A
No current signal · last broadcast Jul 25, 01:15 UTC
Flights observed
95
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 01:15 UTC

Last known position

Most recent position reported by Mode-S AD554C.

Country allocation

The ICAO 24-bit address AD554C 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
N9584J - 95 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N9584J - Jul 25, 00:35 UTCJul 25, 01:15 UTC40m
2026-07-24 N9584J - Jul 24, 21:25 UTCJul 24, 21:40 UTC15m
2026-07-24 N9584J CCB → EMT Jul 24, 19:25 UTCJul 24, 19:40 UTC15m
2026-07-23 N9584J - Jul 23, 22:45 UTCJul 23, 23:15 UTC30m
2026-07-23 N9584J CCB → OCN Jul 23, 18:45 UTCJul 23, 19:35 UTC50m
2026-07-23 N9584J CCB → CCB Jul 23, 02:55 UTCJul 23, 04:10 UTC1h 15m
2026-07-22 N9584J CCB → CCB Jul 22, 15:55 UTCJul 22, 16:40 UTC45m
2026-07-20 N9584J CCB → CCB Jul 20, 20:40 UTCJul 20, 21:50 UTC1h 10m
2026-07-20 N9584J - Jul 20, 16:35 UTCJul 20, 16:55 UTC20m
2026-07-19 N9584J - Jul 19, 18:40 UTCJul 19, 19:20 UTC40m
2026-07-19 N9584J - Jul 19, 16:05 UTCJul 19, 16:45 UTC40m
2026-07-18 N9584J - Jul 18, 22:35 UTCJul 18, 22:55 UTC20m
2026-07-18 N9584J CCB → RIR Jul 18, 20:15 UTCJul 18, 20:45 UTC30m
2026-07-18 N9584J CCB → CCB Jul 18, 14:50 UTCJul 18, 16:35 UTC1h 45m
2026-07-17 N9584J CCB → CCB Jul 17, 01:20 UTCJul 17, 03:30 UTC2h 10m
2026-07-16 N9584J CCB → CCB Jul 16, 01:55 UTCJul 16, 04:10 UTC2h 15m
2026-07-15 N9584J CCB → CCB Jul 15, 20:50 UTCJul 15, 21:40 UTC50m
2026-07-14 N9584J - Jul 14, 23:50 UTCJul 15, 00:30 UTC40m
2026-07-14 N9584J - Jul 14, 23:05 UTCJul 14, 23:20 UTC15m
2026-07-14 N9584J - Jul 14, 22:05 UTCJul 14, 22:15 UTC10m
2026-07-14 N9584J - Jul 14, 21:00 UTCJul 14, 21:25 UTC25m
2026-07-14 N9584J - Jul 14, 17:35 UTCJul 14, 18:30 UTC55m
2026-07-13 N9584J CCB → CCB Jul 13, 20:25 UTCJul 13, 21:15 UTC50m
2026-07-12 N9584J - Jul 12, 20:05 UTCJul 12, 20:50 UTC45m
2026-07-09 N9584J - Jul 9, 16:10 UTCJul 9, 17:00 UTC50m
2026-07-09 N9584J CCB → CCB Jul 9, 02:05 UTCJul 9, 03:45 UTC1h 40m
2026-07-08 N9584J CCB → CCB Jul 8, 20:55 UTCJul 8, 21:45 UTC50m
2026-07-05 N9584J MCC → CCB Jul 5, 20:35 UTCJul 5, 23:55 UTC3h 20m
2026-07-05 N9584J - Jul 5, 19:10 UTCJul 5, 19:35 UTC25m
2026-07-02 N9584J CCB → MCC Jul 2, 19:00 UTCJul 2, 22:20 UTC3h 20m
2026-07-02 N9584J CCB → CCB Jul 2, 02:05 UTCJul 2, 04:55 UTC2h 50m
2026-07-01 N9584J - Jul 1, 20:55 UTCJul 1, 22:05 UTC1h 10m
2026-06-27 N9584J CCB → CCB Jun 27, 18:24 UTCJun 27, 19:39 UTC1h 15m
2026-06-27 N9584J CCB → CCB Jun 27, 01:15 UTCJun 27, 02:50 UTC1h 35m
2026-06-26 N9584J - Jun 26, 18:04 UTCJun 26, 18:49 UTC45m
2026-06-24 N9584J - Jun 24, 19:34 UTCJun 24, 20:05 UTC30m
2026-06-23 N9584J - Jun 23, 18:25 UTCJun 23, 19:04 UTC40m
2026-06-23 N9584J CCB → CCB Jun 23, 00:54 UTCJun 23, 01:25 UTC30m
2026-06-22 N9584J CCB → CCB Jun 22, 21:14 UTCJun 22, 22:24 UTC1h 10m
2026-06-21 N9584J - Jun 21, 19:20 UTCJun 21, 19:50 UTC30m
2026-06-19 N9584J - Jun 19, 00:29 UTCJun 19, 00:59 UTC30m
2026-06-18 N9584J CCB → CCB Jun 18, 22:25 UTCJun 18, 23:10 UTC45m
2026-06-18 N9584J CCB → CCB Jun 18, 20:25 UTCJun 18, 20:55 UTC30m
2026-06-18 N9584J - Jun 18, 02:20 UTCJun 18, 03:30 UTC1h 10m
2026-06-17 N9584J - Jun 17, 20:55 UTCJun 17, 22:05 UTC1h 10m
2026-06-17 N9584J - Jun 17, 03:25 UTCJun 17, 03:50 UTC25m
2026-06-16 N9584J CCB → CCB Jun 16, 18:05 UTCJun 16, 18:45 UTC40m
2026-06-12 N9584J - Jun 12, 18:25 UTCJun 12, 19:15 UTC50m
2026-06-12 N9584J - Jun 12, 16:10 UTCJun 12, 16:45 UTC35m
2026-06-11 N9584J EMT → CCB Jun 11, 20:35 UTCJun 11, 20:50 UTC15m

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 N9584J page for operator, model, and routing details .

Mode-S AD554C frequently asked

What is Mode-S code AD554C?
AD554C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9584J.
Where is Mode-S AD554C registered?
Mode-S code AD554C 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 AD554C broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 01:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD554C, octal 53252514, decimal 11,359,564.
What flights does AD554C operate?
Mode-S AD554C has broadcast 1 distinct callsign, including N9584J.