Apparatus

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sensors Mode-S transponder

A3FE42

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3566A · CESSNA 172R Cutlass RG · operated by SUN CITY AVIATION LLC

Hex
A3FE42
Octal
50777102
Decimal
10,747,458
Country
US
Tail
N3566A
Type
C72R
No current signal · last broadcast 4h ago
Flights observed
170
Distinct callsigns
1
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A3FE42.

Country allocation

The ICAO 24-bit address A3FE42 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
N3566A - 170 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N3566A - Jul 14, 21:45 UTCJul 14, 22:15 UTC30m
2026-07-14 N3566A HWO → HWO Jul 14, 19:05 UTCJul 14, 20:10 UTC1h 5m
2026-07-14 N3566A HWO → HWO Jul 14, 16:30 UTCJul 14, 17:20 UTC50m
2026-07-14 N3566A - Jul 14, 12:50 UTCJul 14, 13:25 UTC35m
2026-07-12 N3566A - Jul 12, 21:50 UTCJul 12, 22:20 UTC30m
2026-07-12 N3566A - Jul 12, 16:01 UTCJul 12, 16:50 UTC50m
2026-07-12 N3566A - Jul 12, 13:45 UTCJul 12, 14:45 UTC1h 0m
2026-07-11 N3566A - Jul 11, 19:25 UTCJul 11, 19:50 UTC25m
2026-07-11 N3566A - Jul 11, 16:05 UTCJul 11, 18:20 UTC2h 15m
2026-07-11 N3566A HWO → HWO Jul 11, 13:15 UTCJul 11, 14:25 UTC1h 10m
2026-07-10 N3566A HWO → HWO Jul 10, 22:00 UTCJul 10, 23:00 UTC1h 0m
2026-07-10 N3566A - Jul 10, 17:10 UTCJul 10, 18:45 UTC1h 35m
2026-07-10 N3566A - Jul 10, 14:15 UTCJul 10, 15:35 UTC1h 20m
2026-07-09 N3566A - Jul 9, 16:50 UTCJul 9, 17:25 UTC35m
2026-07-08 N3566A - Jul 8, 21:55 UTCJul 8, 22:35 UTC40m
2026-07-07 N3566A HWO → HWO Jul 7, 17:45 UTCJul 7, 18:00 UTC15m
2026-07-05 N3566A - Jul 5, 15:00 UTCJul 5, 15:45 UTC45m
2026-07-03 N3566A - Jul 3, 17:05 UTCJul 3, 18:00 UTC55m
2026-07-03 N3566A HWO → HWO Jul 3, 12:25 UTCJul 3, 13:45 UTC1h 20m
2026-07-03 N3566A - Jul 3, 03:35 UTCJul 3, 03:55 UTC20m
2026-07-03 N3566A - Jul 3, 01:20 UTCJul 3, 02:20 UTC1h 0m
2026-07-02 N3566A - Jul 2, 14:40 UTCJul 2, 15:45 UTC1h 5m
2026-07-01 N3566A HWO → HWO Jul 1, 13:00 UTCJul 1, 14:10 UTC1h 10m
2026-06-30 N3566A - Jun 30, 22:25 UTCJun 30, 23:30 UTC1h 5m
2026-06-30 N3566A - Jun 30, 19:45 UTCJun 30, 20:40 UTC55m
2026-06-30 N3566A - Jun 30, 16:45 UTCJun 30, 17:10 UTC25m
2026-06-30 N3566A - Jun 30, 15:05 UTCJun 30, 15:35 UTC30m
2026-06-30 N3566A HWO → HWO Jun 30, 01:30 UTCJun 30, 04:35 UTC3h 5m
2026-06-29 N3566A - Jun 29, 20:49 UTCJun 29, 22:39 UTC1h 50m
2026-06-29 N3566A HWO → HWO Jun 29, 18:25 UTCJun 29, 18:55 UTC30m
2026-06-29 N3566A HWO → HWO Jun 29, 14:19 UTCJun 29, 15:34 UTC1h 15m
2026-06-28 N3566A HWO → HWO Jun 28, 21:24 UTCJun 28, 22:45 UTC1h 20m
2026-06-28 N3566A HWO → HWO Jun 28, 17:39 UTCJun 28, 18:19 UTC40m
2026-06-28 N3566A - Jun 28, 12:09 UTCJun 28, 13:45 UTC1h 35m
2026-06-27 N3566A HWO → HWO Jun 27, 23:04 UTCJun 28, 00:09 UTC1h 5m
2026-06-27 N3566A HWO → HWO Jun 27, 02:09 UTCJun 27, 03:15 UTC1h 5m
2026-06-26 N3566A HWO → HWO Jun 26, 11:00 UTCJun 26, 12:19 UTC1h 20m
2026-06-25 N3566A HWO → HWO Jun 25, 16:14 UTCJun 25, 17:14 UTC1h 0m
2026-06-25 N3566A - Jun 25, 13:05 UTCJun 25, 13:35 UTC30m
2026-06-24 N3566A - Jun 24, 15:00 UTCJun 24, 16:05 UTC1h 5m
2026-06-24 N3566A - Jun 24, 12:25 UTCJun 24, 13:24 UTC1h 0m
2026-06-22 N3566A - Jun 22, 18:40 UTCJun 22, 19:49 UTC1h 10m
2026-06-22 N3566A - Jun 22, 15:24 UTCJun 22, 15:59 UTC35m
2026-06-21 N3566A HWO → HWO Jun 21, 18:35 UTCJun 21, 18:50 UTC15m
2026-06-21 N3566A - Jun 21, 15:15 UTCJun 21, 16:44 UTC1h 30m
2026-06-18 N3566A - Jun 18, 16:00 UTCJun 18, 17:15 UTC1h 15m
2026-06-18 N3566A HWO → HWO Jun 18, 12:30 UTCJun 18, 14:01 UTC1h 30m
2026-06-17 N3566A - Jun 17, 17:00 UTCJun 17, 18:20 UTC1h 20m
2026-06-17 N3566A HWO → HWO Jun 17, 13:20 UTCJun 17, 14:10 UTC50m
2026-06-16 N3566A HWO → HWO Jun 16, 16:05 UTCJun 16, 16:35 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 N3566A page for operator, model, and routing details .

Mode-S A3FE42 frequently asked

What is Mode-S code A3FE42?
A3FE42 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3566A.
Where is Mode-S A3FE42 registered?
Mode-S code A3FE42 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 A3FE42 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 A3FE42, octal 50777102, decimal 10,747,458.
What flights does A3FE42 operate?
Mode-S A3FE42 has broadcast 1 distinct callsign, including N3566A.