Apparatus

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sensors Mode-S transponder

A31FA0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N300DC · PIPER PA-28-140/150/160/180 · operated by SKYBORNE AIRLINE ACADEMY INC

Hex
A31FA0
Octal
50617640
Decimal
10,690,464
Country
US
Tail
N300DC
Type
P28A
No current signal · last broadcast 31m ago
Flights observed
228
Distinct callsigns
1
Country
US
Last broadcast
31m ago

Last known position

Most recent position reported by Mode-S A31FA0.

Country allocation

The ICAO 24-bit address A31FA0 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
SFY203 - 227 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SFY203 - Jul 14, 17:20 UTCJul 14, 18:00 UTC40m
2026-07-14 SFY203 - Jul 14, 12:55 UTCJul 14, 14:50 UTC1h 55m
2026-07-13 SFY203 - Jul 13, 21:35 UTCJul 13, 22:05 UTC30m
2026-07-13 SFY203 - Jul 13, 16:00 UTCJul 13, 17:00 UTC1h 0m
2026-07-13 SFY203 - Jul 13, 11:10 UTCJul 13, 12:10 UTC1h 0m
2026-07-13 SFY203 - Jul 13, 01:05 UTCJul 13, 02:10 UTC1h 5m
2026-07-12 SFY203 - Jul 12, 14:35 UTCJul 12, 15:20 UTC45m
2026-07-11 SFY203 - Jul 11, 19:20 UTCJul 11, 19:55 UTC35m
2026-07-11 SFY203 - Jul 11, 15:45 UTCJul 11, 16:35 UTC50m
2026-07-11 SFY203 - Jul 11, 13:30 UTCJul 11, 14:25 UTC55m
2026-07-11 SFY203 - Jul 11, 10:45 UTCJul 11, 11:55 UTC1h 10m
2026-07-10 SFY203 - Jul 10, 15:25 UTCJul 10, 16:05 UTC40m
2026-07-10 SFY203 - Jul 10, 11:15 UTCJul 10, 11:30 UTC15m
2026-07-10 SFY203 - Jul 10, 01:10 UTCJul 10, 02:35 UTC1h 25m
2026-07-09 SFY203 - Jul 9, 20:45 UTCJul 9, 21:30 UTC45m
2026-07-09 SFY203 - Jul 9, 17:30 UTCJul 9, 18:00 UTC30m
2026-07-09 SFY203 - Jul 9, 13:00 UTCJul 9, 13:30 UTC30m
2026-07-08 SFY203 - Jul 8, 19:40 UTCJul 8, 22:30 UTC2h 50m
2026-07-08 SFY203 - Jul 8, 18:15 UTCJul 8, 18:35 UTC20m
2026-07-08 SFY203 - Jul 8, 16:15 UTCJul 8, 16:40 UTC25m
2026-07-08 SFY203 - Jul 8, 12:10 UTCJul 8, 12:30 UTC20m
2026-07-07 SFY203 - Jul 7, 19:50 UTCJul 7, 20:20 UTC30m
2026-07-07 SFY203 - Jul 7, 15:10 UTCJul 7, 15:40 UTC30m
2026-07-07 SFY203 - Jul 7, 12:30 UTCJul 7, 13:45 UTC1h 15m
2026-07-06 SFY203 - Jul 6, 14:00 UTCJul 6, 15:00 UTC1h 0m
2026-07-05 SFY203 - Jul 5, 16:50 UTCJul 5, 17:30 UTC40m
2026-07-05 SFY203 - Jul 5, 14:20 UTCJul 5, 15:05 UTC45m
2026-07-05 SFY203 - Jul 5, 11:45 UTCJul 5, 12:25 UTC40m
2026-07-05 SFY203 - Jul 5, 01:30 UTCJul 5, 02:30 UTC1h 0m
2026-07-04 SFY203 - Jul 4, 17:35 UTCJul 4, 18:05 UTC30m
2026-07-04 SFY203 - Jul 4, 13:25 UTCJul 4, 13:35 UTC10m
2026-07-04 SFY203 - Jul 4, 10:50 UTCJul 4, 11:50 UTC1h 0m
2026-07-01 SFY203 - Jul 1, 11:50 UTCJul 1, 13:00 UTC1h 10m
2026-07-01 SFY203 - Jul 1, 02:15 UTCJul 1, 03:10 UTC55m
2026-06-30 SFY203 - Jun 30, 18:05 UTCJun 30, 18:55 UTC50m
2026-06-30 SFY203 - Jun 30, 16:05 UTCJun 30, 16:55 UTC50m
2026-06-30 SFY203 - Jun 30, 14:05 UTCJun 30, 14:35 UTC30m
2026-06-30 SFY203 - Jun 30, 11:25 UTCJun 30, 11:55 UTC30m
2026-06-29 SFY203 - Jun 29, 21:30 UTCJun 29, 21:50 UTC20m
2026-06-29 SFY203 - Jun 29, 19:05 UTCJun 29, 19:24 UTC20m
2026-06-29 SFY203 - Jun 29, 17:10 UTCJun 29, 17:19 UTC10m
2026-06-29 SFY203 - Jun 29, 10:50 UTCJun 29, 11:55 UTC1h 5m
2026-06-28 SFY203 - Jun 28, 16:29 UTCJun 28, 17:25 UTC55m
2026-06-28 SFY203 - Jun 28, 14:39 UTCJun 28, 14:54 UTC15m
2026-06-28 SFY203 - Jun 28, 13:14 UTCJun 28, 13:40 UTC25m
2026-06-28 SFY203 - Jun 28, 11:14 UTCJun 28, 12:05 UTC50m
2026-06-27 SFY203 - Jun 27, 13:30 UTCJun 27, 14:05 UTC35m
2026-06-27 SFY203 - Jun 27, 11:30 UTCJun 27, 12:25 UTC55m
2026-06-25 SFY203 - Jun 25, 21:55 UTCJun 25, 23:19 UTC1h 25m
2026-06-25 SFY203 - Jun 25, 14:24 UTCJun 25, 15:15 UTC50m

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 N300DC page for operator, model, and routing details .

Mode-S A31FA0 frequently asked

What is Mode-S code A31FA0?
A31FA0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N300DC.
Where is Mode-S A31FA0 registered?
Mode-S code A31FA0 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 A31FA0 broadcasting right now?
No active broadcast right now. Last signal was 31m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A31FA0, octal 50617640, decimal 10,690,464.
What flights does A31FA0 operate?
Mode-S A31FA0 has broadcast 1 distinct callsign, including SFY203.