Apparatus

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sensors Mode-S transponder

A5074F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N423FP · DIAMOND DA-40 Club Star · operated by UTAH STATE UNIVERSITY

Hex
A5074F
Octal
51203517
Decimal
10,815,311
Country
US
Tail
N423FP
Type
DA40
No current signal · last broadcast 20h ago
Flights observed
82
Distinct callsigns
1
Country
US
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S A5074F.

Country allocation

The ICAO 24-bit address A5074F 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
N423FP - 82 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N423FP LGU → LGU May 29, 19:05 UTCMay 29, 19:55 UTC50m
2026-05-29 N423FP - May 29, 17:05 UTCMay 29, 17:15 UTC10m
2026-05-29 N423FP - May 29, 14:50 UTCMay 29, 15:05 UTC15m
2026-05-29 N423FP LGU → LGU May 29, 03:55 UTCMay 29, 04:15 UTC20m
2026-05-28 N423FP LGU → LGU May 28, 23:55 UTCMay 29, 01:20 UTC1h 25m
2026-05-28 N423FP LGU → LGU May 28, 18:45 UTCMay 28, 20:15 UTC1h 30m
2026-05-28 N423FP LGU → LGU May 28, 16:50 UTCMay 28, 17:40 UTC50m
2026-05-22 N423FP - May 22, 21:45 UTCMay 22, 22:20 UTC35m
2026-05-22 N423FP - May 22, 20:30 UTCMay 22, 21:10 UTC40m
2026-05-21 N423FP LGU → LGU May 21, 16:30 UTCMay 21, 17:45 UTC1h 15m
2026-05-20 N423FP - May 20, 18:10 UTCMay 20, 18:55 UTC45m
2026-05-20 N423FP - May 20, 00:30 UTCMay 20, 00:40 UTC10m
2026-05-19 N423FP LGU → LGU May 19, 18:55 UTCMay 19, 20:30 UTC1h 35m
2026-05-19 N423FP LGU → LGU May 19, 16:50 UTCMay 19, 17:50 UTC1h 0m
2026-05-18 N423FP LGU → LGU May 18, 23:55 UTCMay 19, 00:40 UTC45m
2026-05-18 N423FP LGU → LGU May 18, 23:00 UTCMay 18, 23:10 UTC10m
2026-05-17 N423FP - May 17, 15:31 UTCMay 17, 15:55 UTC25m
2026-05-17 N423FP - May 17, 14:30 UTCMay 17, 15:01 UTC30m
2026-05-16 N423FP LGU → LGU May 16, 15:40 UTCMay 16, 16:50 UTC1h 10m
2026-05-16 N423FP LGU → LGU May 16, 12:55 UTCMay 16, 13:05 UTC10m
2026-05-16 N423FP LGU → LGU May 16, 03:45 UTCMay 16, 04:25 UTC40m
2026-05-15 N423FP - May 15, 19:55 UTCMay 15, 20:15 UTC20m
2026-05-15 N423FP - May 15, 18:40 UTCMay 15, 19:25 UTC45m
2026-05-15 N423FP LGU → LGU May 15, 16:35 UTCMay 15, 17:10 UTC35m
2026-05-15 N423FP LGU → LGU May 15, 14:15 UTCMay 15, 15:45 UTC1h 29m
2026-05-15 N423FP LGU → LGU May 15, 03:50 UTCMay 15, 04:35 UTC45m
2026-05-14 N423FP LGU → LGU May 14, 23:40 UTCMay 15, 01:05 UTC1h 25m
2026-05-14 N423FP LGU → LGU May 14, 20:00 UTCMay 14, 21:50 UTC1h 50m
2026-05-14 N423FP LGU → LGU May 14, 18:15 UTCMay 14, 19:05 UTC50m
2026-05-14 N423FP LGU → LGU May 14, 16:50 UTCMay 14, 17:50 UTC1h 0m
2026-05-14 N423FP LGU → LGU May 14, 15:20 UTCMay 14, 15:55 UTC35m
2026-05-13 N423FP LGU → LGU May 13, 17:40 UTCMay 13, 18:20 UTC40m
2026-05-13 N423FP LGU → LGU May 13, 13:20 UTCMay 13, 14:55 UTC1h 35m
2026-05-12 N423FP - May 12, 21:30 UTCMay 12, 21:55 UTC25m
2026-05-12 N423FP LGU → LGU May 12, 20:05 UTCMay 12, 21:01 UTC55m
2026-05-12 N423FP LGU → LGU May 12, 03:40 UTCMay 12, 05:30 UTC1h 50m
2026-05-11 N423FP LGU → LGU May 11, 21:15 UTCMay 11, 22:10 UTC55m
2026-05-11 N423FP LGU → LGU May 11, 18:45 UTCMay 11, 20:00 UTC1h 15m
2026-05-11 N423FP LGU → LGU May 11, 15:55 UTCMay 11, 17:40 UTC1h 46m
2026-05-09 N423FP LGU → LGU May 9, 14:35 UTCMay 9, 15:50 UTC1h 15m
2026-05-08 N423FP LGU → LGU May 8, 19:30 UTCMay 8, 20:50 UTC1h 20m
2026-05-08 N423FP - May 8, 18:35 UTCMay 8, 18:55 UTC20m
2026-05-08 N423FP - May 8, 17:00 UTCMay 8, 17:25 UTC25m
2026-05-07 N423FP LGU → LGU May 7, 19:55 UTCMay 7, 20:50 UTC55m
2026-05-07 N423FP LGU → LGU May 7, 16:40 UTCMay 7, 17:30 UTC50m
2026-05-06 N423FP LGU → LGU May 6, 19:35 UTCMay 6, 20:30 UTC55m
2026-05-06 N423FP LGU → LGU May 6, 14:50 UTCMay 6, 16:00 UTC1h 10m
2026-05-05 N423FP LGU → LGU May 5, 22:15 UTCMay 5, 23:20 UTC1h 5m
2026-05-04 N423FP LGU → LGU May 4, 21:20 UTCMay 4, 23:00 UTC1h 40m
2026-05-04 N423FP LGU → LGU May 4, 18:40 UTCMay 4, 20:20 UTC1h 40m

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 N423FP page for operator, model, and routing details .

Mode-S A5074F frequently asked

What is Mode-S code A5074F?
A5074F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N423FP.
Where is Mode-S A5074F registered?
Mode-S code A5074F 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 A5074F broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5074F, octal 51203517, decimal 10,815,311.
What flights does A5074F operate?
Mode-S A5074F has broadcast 1 distinct callsign, including N423FP.