Apparatus

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sensors Mode-S transponder

A55642

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N443FC · operated by FLYFRY MONTANA LLC

Hex
A55642
Octal
51253102
Decimal
10,835,522
Country
US
Tail
N443FC
Type
SR20
No current signal · last broadcast 1d ago
Flights observed
48
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A55642.

Country allocation

The ICAO 24-bit address A55642 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
N443FC - 48 2026-05-29

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-05-29 N443FC - May 29, 14:30 UTCMay 29, 15:30 UTC1h 0m
2026-05-28 N443FC - May 28, 21:40 UTCMay 28, 21:50 UTC10m
2026-05-28 N443FC - May 28, 01:45 UTCMay 28, 02:20 UTC35m
2026-05-28 N443FC - May 28, 00:40 UTCMay 28, 01:10 UTC30m
2026-05-24 N443FC - May 24, 18:30 UTCMay 24, 19:30 UTC1h 0m
2026-05-21 N443FC - May 21, 22:35 UTCMay 21, 23:40 UTC1h 5m
2026-05-17 N443FC - May 17, 19:25 UTCMay 17, 20:30 UTC1h 5m
2026-05-14 N443FC - May 14, 18:55 UTCMay 14, 20:10 UTC1h 15m
2026-05-13 N443FC FXE → FXE May 13, 18:55 UTCMay 13, 19:10 UTC15m
2026-05-12 N443FC TMB → FXE May 12, 15:35 UTCMay 12, 16:35 UTC1h 0m
2026-05-10 N443FC - May 10, 23:00 UTCMay 11, 00:19 UTC1h 20m
2026-05-09 N443FC FXE → FXE May 9, 01:20 UTCMay 9, 01:45 UTC25m
2026-05-06 N443FC FXE → FXE May 6, 19:05 UTCMay 6, 20:45 UTC1h 40m
2026-05-02 N443FC FXE → FXE May 2, 11:50 UTCMay 2, 13:10 UTC1h 20m
2026-04-27 N443FC - Apr 27, 19:20 UTCApr 27, 19:50 UTC30m
2026-04-26 N443FC FXE → FXE Apr 26, 14:55 UTCApr 26, 16:45 UTC1h 50m
2026-04-26 N443FC - Apr 26, 13:15 UTCApr 26, 13:40 UTC25m
2026-04-26 N443FC - Apr 26, 12:35 UTCApr 26, 12:45 UTC10m
2026-04-26 N443FC - Apr 26, 11:15 UTCApr 26, 11:55 UTC40m
2026-04-25 N443FC HWO → FXE Apr 25, 21:00 UTCApr 25, 21:15 UTC15m
2026-04-25 N443FC - Apr 25, 19:05 UTCApr 25, 20:25 UTC1h 20m
2026-04-25 N443FC HWO → FXE Apr 25, 17:10 UTCApr 25, 17:45 UTC35m
2026-04-25 N443FC TMB → HWO Apr 25, 15:25 UTCApr 25, 16:35 UTC1h 10m
2026-04-25 N443FC - Apr 25, 13:20 UTCApr 25, 14:15 UTC55m
2026-04-25 N443FC - Apr 25, 09:20 UTCApr 25, 09:55 UTC35m
2026-04-24 N443FC FXE → FXE Apr 24, 17:20 UTCApr 24, 19:45 UTC2h 25m
2026-04-23 N443FC - Apr 23, 19:30 UTCApr 23, 19:40 UTC10m
2026-04-23 N443FC TMB → HWO Apr 23, 18:05 UTCApr 23, 18:35 UTC30m
2026-04-23 N443FC - Apr 23, 01:30 UTCApr 23, 01:55 UTC25m
2026-04-20 N443FC - Apr 20, 18:25 UTCApr 20, 19:30 UTC1h 5m
2026-04-19 N443FC - Apr 19, 15:05 UTCApr 19, 15:50 UTC45m
2026-04-19 N443FC - Apr 19, 12:00 UTCApr 19, 12:25 UTC25m
2026-04-18 N443FC - Apr 18, 14:15 UTCApr 18, 15:50 UTC1h 35m
2026-04-18 N443FC - Apr 18, 12:15 UTCApr 18, 13:10 UTC55m
2026-04-16 N443FC - Apr 16, 22:05 UTCApr 16, 22:20 UTC15m
2026-04-16 N443FC - Apr 16, 21:24 UTCApr 16, 21:50 UTC25m
2026-04-16 N443FC - Apr 16, 20:25 UTCApr 16, 20:50 UTC25m
2026-04-16 N443FC - Apr 16, 19:15 UTCApr 16, 20:10 UTC55m
2026-04-16 N443FC - Apr 16, 18:55 UTCApr 16, 19:05 UTC10m
2026-04-16 N443FC - Apr 16, 17:25 UTCApr 16, 18:15 UTC50m
2026-04-15 N443FC - Apr 15, 23:10 UTCApr 15, 23:30 UTC20m
2026-04-15 N443FC - Apr 15, 22:40 UTCApr 15, 23:00 UTC20m
2026-04-15 N443FC FXE → IMM Apr 15, 21:20 UTCApr 15, 22:05 UTC45m
2026-04-15 N443FC LNA → FXE Apr 15, 19:50 UTCApr 15, 20:10 UTC20m
2026-04-15 N443FC - Apr 15, 19:20 UTCApr 15, 19:30 UTC10m
2026-04-15 N443FC - Apr 15, 18:05 UTCApr 15, 19:00 UTC55m
2026-04-15 N443FC FXE → LNA Apr 15, 17:25 UTCApr 15, 17:45 UTC20m
2026-04-13 N443FC TMB → FXE Apr 13, 00:35 UTCApr 13, 01:05 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 N443FC page for operator, model, and routing details .

Mode-S A55642 frequently asked

What is Mode-S code A55642?
A55642 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N443FC.
Where is Mode-S A55642 registered?
Mode-S code A55642 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 A55642 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A55642, octal 51253102, decimal 10,835,522.
What flights does A55642 operate?
Mode-S A55642 has broadcast 1 distinct callsign, including N443FC.