Apparatus

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sensors Mode-S transponder

A866D3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N640SH · DIAMOND DA-42 Guardian · operated by BANK OF UTAH TRUSTEE

Hex
A866D3
Octal
52063323
Decimal
11,036,371
Country
US
Tail
N640SH
Type
DA42
No current signal · last broadcast Jul 24, 04:55 UTC
Flights observed
74
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 04:55 UTC

Last known position

Most recent position reported by Mode-S A866D3.

Country allocation

The ICAO 24-bit address A866D3 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
SVY314 - 74 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 SVY314 - Jul 24, 04:05 UTCJul 24, 04:55 UTC50m
2026-07-24 SVY314 - Jul 24, 00:10 UTCJul 24, 01:00 UTC50m
2026-07-23 SVY314 - Jul 23, 03:25 UTCJul 23, 04:25 UTC1h 0m
2026-07-23 SVY314 - Jul 23, 00:05 UTCJul 23, 00:40 UTC35m
2026-07-22 SVY314 - Jul 22, 02:50 UTCJul 22, 04:00 UTC1h 10m
2026-07-22 SVY314 - Jul 22, 00:00 UTCJul 22, 00:35 UTC35m
2026-07-21 SVY314 - Jul 21, 03:20 UTCJul 21, 04:05 UTC45m
2026-07-21 SVY314 - Jul 21, 00:10 UTCJul 21, 00:45 UTC35m
2026-07-20 SVY314 - Jul 20, 09:05 UTCJul 20, 10:25 UTC1h 20m
2026-07-20 SVY314 - Jul 20, 05:45 UTCJul 20, 06:10 UTC25m
2026-07-19 SVY314 - Jul 19, 06:55 UTCJul 19, 07:15 UTC20m
2026-07-18 SVY314 - Jul 18, 23:55 UTCJul 19, 00:10 UTC15m
2026-07-18 SVY314 - Jul 18, 09:45 UTCJul 18, 09:55 UTC10m
2026-07-18 SVY314 - Jul 18, 06:25 UTCJul 18, 06:45 UTC20m
2026-07-18 SVY314 - Jul 18, 00:10 UTCJul 18, 00:19 UTC10m
2026-07-17 SVY314 - Jul 17, 00:04 UTCJul 17, 00:25 UTC20m
2026-07-16 SVY314 - Jul 16, 00:00 UTCJul 16, 00:20 UTC20m
2026-07-15 SVY314 - Jul 15, 02:40 UTCJul 15, 02:50 UTC10m
2026-07-15 SVY314 - Jul 15, 00:10 UTCJul 15, 00:20 UTC10m
2026-07-14 SVY314 - Jul 14, 00:00 UTCJul 14, 00:15 UTC15m
2026-07-13 SVY314 - Jul 13, 02:50 UTCJul 13, 03:01 UTC10m
2026-07-13 SVY314 - Jul 13, 00:01 UTCJul 13, 00:15 UTC15m
2026-07-10 SVY314 - Jul 10, 03:10 UTCJul 10, 04:10 UTC1h 0m
2026-07-10 SVY314 - Jul 10, 01:50 UTCJul 10, 02:35 UTC45m
2026-07-10 SVY314 - Jul 10, 00:05 UTCJul 10, 01:05 UTC1h 0m
2026-07-09 SVY314 - Jul 9, 06:40 UTCJul 9, 07:00 UTC20m
2026-07-08 SVY314 - Jul 8, 06:00 UTCJul 8, 06:10 UTC10m
2026-07-08 SVY314 - Jul 8, 02:00 UTCJul 8, 04:05 UTC2h 5m
2026-07-08 SVY314 - Jul 8, 00:10 UTCJul 8, 00:55 UTC45m
2026-07-07 SVY314 - Jul 7, 02:00 UTCJul 7, 02:25 UTC25m
2026-07-06 SVY314 - Jul 6, 23:50 UTCJul 7, 01:25 UTC1h 35m
2026-07-06 SVY314 - Jul 6, 00:10 UTCJul 6, 01:20 UTC1h 10m
2026-07-03 SVY314 - Jul 3, 03:45 UTCJul 3, 04:30 UTC45m
2026-07-03 SVY314 - Jul 3, 00:05 UTCJul 3, 00:45 UTC40m
2026-07-02 SVY314 - Jul 2, 00:15 UTCJul 2, 00:25 UTC10m
2026-07-01 SVY314 - Jul 1, 00:25 UTCJul 1, 00:55 UTC30m
2026-06-30 SVY314 - Jun 30, 07:00 UTCJun 30, 09:00 UTC2h 0m
2026-06-30 SVY314 - Jun 30, 05:40 UTCJun 30, 06:00 UTC20m
2026-06-16 SVY314 - Jun 16, 02:34 UTCJun 16, 03:10 UTC35m
2026-06-15 SVY314 - Jun 15, 00:15 UTCJun 15, 03:00 UTC2h 45m
2026-06-12 SVY314 - Jun 12, 04:15 UTCJun 12, 04:45 UTC30m
2026-06-12 SVY314 - Jun 12, 00:10 UTCJun 12, 02:30 UTC2h 21m
2026-06-11 SVY314 - Jun 11, 01:15 UTCJun 11, 04:45 UTC3h 30m
2026-06-11 SVY314 - Jun 11, 00:05 UTCJun 11, 00:40 UTC35m
2026-06-08 SVY314 - Jun 8, 00:10 UTCJun 8, 01:40 UTC1h 30m
2026-06-05 SVY314 - Jun 5, 00:00 UTCJun 5, 02:40 UTC2h 40m
2026-06-04 SVY314 - Jun 4, 01:25 UTCJun 4, 03:30 UTC2h 5m
2026-06-03 SVY314 - Jun 3, 06:35 UTCJun 3, 07:50 UTC1h 15m
2026-06-02 SVY314 - Jun 2, 00:35 UTCJun 2, 03:20 UTC2h 45m
2026-06-01 SVY314 - Jun 1, 00:40 UTCJun 1, 03:40 UTC3h 0m

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 N640SH page for operator, model, and routing details .

Mode-S A866D3 frequently asked

What is Mode-S code A866D3?
A866D3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N640SH.
Where is Mode-S A866D3 registered?
Mode-S code A866D3 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 A866D3 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 04:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A866D3, octal 52063323, decimal 11,036,371.
What flights does A866D3 operate?
Mode-S A866D3 has broadcast 1 distinct callsign, including SVY314.