Apparatus

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sensors Mode-S transponder

A8DF83

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N671AV · SWEARINGEN Metro · operated by UAS TRANSERVICES INC

Hex
A8DF83
Octal
52157603
Decimal
11,067,267
Country
US
Tail
N671AV
Type
SW4
No current signal · last broadcast 7h ago
Flights observed
136
Distinct callsigns
7
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A8DF83.

Country allocation

The ICAO 24-bit address A8DF83 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 7 distinct

Callsign Airline Flights Last seen
AMF1930 - 35 2026-07-08
AMF1941 - 34 2026-06-24
AMF1929 - 21 2026-07-09
AMF1942 - 20 2026-06-23
AMF1944 - 11 2026-07-17
AMF1943 - 11 2026-07-18
AMF7166 - 4 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 AMF1943 SMX → ONT Jul 18, 00:50 UTCJul 18, 01:39 UTC50m
2026-07-17 AMF1944 BUR → SMX Jul 17, 13:25 UTCJul 17, 14:00 UTC35m
2026-07-17 AMF1943 SMX → BUR Jul 17, 01:05 UTCJul 17, 01:39 UTC35m
2026-07-16 AMF1944 - Jul 16, 14:20 UTCJul 16, 14:50 UTC30m
2026-07-16 AMF1943 SMX → BUR Jul 16, 00:50 UTCJul 16, 01:25 UTC35m
2026-07-15 AMF1944 - Jul 15, 21:30 UTCJul 15, 22:00 UTC30m
2026-07-15 AMF1943 - Jul 15, 00:50 UTCJul 15, 01:20 UTC30m
2026-07-14 AMF1944 BUR → SMX Jul 14, 13:20 UTCJul 14, 13:50 UTC30m
2026-07-09 AMF1929 - Jul 9, 01:15 UTCJul 9, 01:45 UTC30m
2026-07-08 AMF1930 - Jul 8, 16:20 UTCJul 8, 17:05 UTC45m
2026-07-08 AMF1930 - Jul 8, 14:25 UTCJul 8, 15:00 UTC35m
2026-07-07 AMF1929 - Jul 7, 01:05 UTCJul 7, 01:35 UTC30m
2026-07-06 AMF1930 BUR → SBA Jul 6, 21:35 UTCJul 6, 22:00 UTC25m
2026-07-03 AMF1929 SBA → BUR Jul 3, 01:05 UTCJul 3, 01:35 UTC30m
2026-07-02 AMF1930 - Jul 2, 21:40 UTCJul 2, 22:00 UTC20m
2026-07-02 AMF1929 SBA → BUR Jul 2, 01:00 UTCJul 2, 01:25 UTC25m
2026-07-01 AMF1930 - Jul 1, 15:40 UTCJul 1, 16:00 UTC20m
2026-07-01 AMF1930 - Jul 1, 13:55 UTCJul 1, 14:35 UTC40m
2026-07-01 AMF1929 - Jul 1, 01:00 UTCJul 1, 01:25 UTC25m
2026-06-30 AMF1930 - Jun 30, 15:50 UTCJun 30, 16:10 UTC20m
2026-06-30 AMF1930 - Jun 30, 13:45 UTCJun 30, 14:25 UTC40m
2026-06-30 AMF1929 - Jun 30, 01:04 UTCJun 30, 01:30 UTC26m
2026-06-29 AMF1930 - Jun 29, 21:34 UTCJun 29, 22:00 UTC25m
2026-06-27 AMF1930 SBA → BUR Jun 27, 15:55 UTCJun 27, 16:20 UTC25m
2026-06-27 AMF1930 - Jun 27, 14:25 UTCJun 27, 15:00 UTC35m
2026-06-27 AMF1930 BUR → ONT Jun 27, 12:55 UTCJun 27, 13:15 UTC20m
2026-06-27 AMF1929 - Jun 27, 01:00 UTCJun 27, 01:24 UTC25m
2026-06-26 AMF1930 BUR → SBA Jun 26, 21:55 UTCJun 26, 22:14 UTC20m
2026-06-25 AMF1929 - Jun 25, 01:04 UTCJun 25, 01:35 UTC30m
2026-06-24 AMF1930 - Jun 24, 15:29 UTCJun 24, 15:54 UTC25m
2026-06-24 AMF1930 - Jun 24, 14:15 UTCJun 24, 14:55 UTC40m
2026-06-24 AMF1941 - Jun 24, 01:04 UTCJun 24, 01:34 UTC30m
2026-06-24 AMF1941 - Jun 24, 00:15 UTCJun 24, 00:40 UTC25m
2026-06-23 AMF1942 - Jun 23, 13:34 UTCJun 23, 14:19 UTC45m
2026-06-23 AMF1941 - Jun 23, 01:15 UTCJun 23, 01:45 UTC30m
2026-06-23 AMF1941 - Jun 23, 00:24 UTCJun 23, 00:50 UTC25m
2026-06-20 AMF1942 - Jun 20, 14:39 UTCJun 20, 15:24 UTC45m
2026-06-20 AMF1941 BFL → ONT Jun 20, 00:59 UTCJun 20, 01:39 UTC40m
2026-06-20 AMF1941 - Jun 20, 00:09 UTCJun 20, 00:39 UTC30m
2026-06-19 AMF1942 - Jun 19, 13:54 UTCJun 19, 14:34 UTC40m
2026-06-19 AMF1941 MIT → BUR Jun 19, 01:15 UTCJun 19, 01:45 UTC30m
2026-06-19 AMF1941 - Jun 19, 00:14 UTCJun 19, 00:45 UTC30m
2026-06-18 AMF1942 - Jun 18, 13:50 UTCJun 18, 14:25 UTC35m
2026-06-18 AMF1941 - Jun 18, 01:05 UTCJun 18, 01:35 UTC30m
2026-06-18 AMF1941 - Jun 18, 00:20 UTCJun 18, 00:40 UTC20m
2026-06-17 AMF1942 - Jun 17, 13:40 UTCJun 17, 14:25 UTC45m
2026-06-17 AMF1941 - Jun 17, 01:05 UTCJun 17, 01:35 UTC30m
2026-06-17 AMF1941 - Jun 17, 00:10 UTCJun 17, 00:40 UTC30m
2026-06-16 AMF1942 - Jun 16, 13:40 UTCJun 16, 14:25 UTC45m
2026-06-16 AMF1941 - Jun 16, 01:15 UTCJun 16, 01:40 UTC25m

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 N671AV page for operator, model, and routing details .

Mode-S A8DF83 frequently asked

What is Mode-S code A8DF83?
A8DF83 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N671AV.
Where is Mode-S A8DF83 registered?
Mode-S code A8DF83 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 A8DF83 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8DF83, octal 52157603, decimal 11,067,267.
What flights does A8DF83 operate?
Mode-S A8DF83 has broadcast 7 distinct callsigns, including AMF1930, AMF1941, AMF1929, AMF1942, AMF1944.