Apparatus

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sensors Mode-S transponder

AB6391

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N833AT · PIPER PA-44 Seminole · operated by DOT AVIATION LLC

Hex
AB6391
Octal
52661621
Decimal
11,232,145
Country
US
Tail
N833AT
Type
PA44
No current signal · last broadcast 12h ago
Flights observed
107
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S AB6391.

Country allocation

The ICAO 24-bit address AB6391 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
CXK1073 - 107 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CXK1073 - Jul 17, 18:44 UTCJul 17, 19:35 UTC50m
2026-07-17 CXK1073 - Jul 17, 18:15 UTCJul 17, 18:40 UTC25m
2026-07-17 CXK1073 - Jul 17, 13:00 UTCJul 17, 13:25 UTC25m
2026-07-17 CXK1073 - Jul 17, 12:30 UTCJul 17, 12:55 UTC25m
2026-07-04 CXK1073 - Jul 4, 22:15 UTCJul 4, 22:35 UTC20m
2026-07-04 CXK1073 - Jul 4, 21:30 UTCJul 4, 21:50 UTC20m
2026-07-04 CXK1073 - Jul 4, 15:50 UTCJul 4, 16:15 UTC25m
2026-07-04 CXK1073 - Jul 4, 14:50 UTCJul 4, 15:45 UTC55m
2026-07-03 CXK1073 - Jul 3, 20:45 UTCJul 3, 21:30 UTC45m
2026-07-03 CXK1073 - Jul 3, 16:05 UTCJul 3, 16:45 UTC40m
2026-07-03 CXK1073 - Jul 3, 00:40 UTCJul 3, 01:20 UTC40m
2026-07-02 CXK1073 - Jul 2, 23:05 UTCJul 2, 23:45 UTC40m
2026-06-17 CXK1073 OGD → OGD Jun 17, 00:40 UTCJun 17, 02:20 UTC1h 40m
2026-06-16 CXK1073 - Jun 16, 18:29 UTCJun 16, 19:15 UTC45m
2026-06-16 CXK1073 - Jun 16, 13:09 UTCJun 16, 14:00 UTC50m
2026-06-15 CXK1073 - Jun 15, 20:30 UTCJun 15, 21:25 UTC55m
2026-06-15 CXK1073 - Jun 15, 19:05 UTCJun 15, 19:25 UTC20m
2026-06-15 CXK1073 - Jun 15, 17:34 UTCJun 15, 17:45 UTC10m
2026-06-15 CXK1073 - Jun 15, 15:19 UTCJun 15, 16:15 UTC55m
2026-06-15 CXK1073 OGD → OGD Jun 15, 12:45 UTCJun 15, 14:00 UTC1h 15m
2026-06-14 CXK1073 - Jun 14, 17:40 UTCJun 14, 18:15 UTC35m
2026-06-14 CXK1073 - Jun 14, 14:45 UTCJun 14, 15:35 UTC50m
2026-06-13 CXK1073 - Jun 13, 20:05 UTCJun 13, 20:30 UTC25m
2026-06-13 CXK1073 - Jun 13, 19:20 UTCJun 13, 19:40 UTC20m
2026-06-13 CXK1073 - Jun 13, 14:20 UTCJun 13, 14:40 UTC20m
2026-06-13 CXK1073 - Jun 13, 13:25 UTCJun 13, 14:15 UTC50m
2026-06-12 CXK1073 - Jun 12, 19:45 UTCJun 12, 20:45 UTC1h 0m
2026-06-12 CXK1073 - Jun 12, 16:55 UTCJun 12, 17:45 UTC50m
2026-06-12 CXK1073 - Jun 12, 13:30 UTCJun 12, 15:25 UTC1h 55m
2026-06-11 CXK1073 - Jun 11, 20:45 UTCJun 11, 21:10 UTC25m
2026-06-11 CXK1073 - Jun 11, 20:15 UTCJun 11, 20:40 UTC25m
2026-06-11 CXK1073 - Jun 11, 14:15 UTCJun 11, 14:40 UTC25m
2026-06-11 CXK1073 - Jun 11, 13:45 UTCJun 11, 14:10 UTC25m
2026-06-10 CXK1073 - Jun 10, 20:50 UTCJun 10, 21:25 UTC35m
2026-06-10 CXK1073 - Jun 10, 19:15 UTCJun 10, 20:15 UTC1h 0m
2026-06-10 CXK1073 OGD → LGU Jun 10, 18:10 UTCJun 10, 19:05 UTC55m
2026-06-09 CXK1073 - Jun 9, 14:50 UTCJun 9, 15:50 UTC1h 0m
2026-06-07 CXK1073 OGD → OGD Jun 7, 11:25 UTCJun 7, 12:15 UTC50m
2026-06-05 CXK1073 - Jun 5, 23:05 UTCJun 5, 23:35 UTC30m
2026-06-05 CXK1073 - Jun 5, 19:20 UTCJun 5, 19:35 UTC15m
2026-06-05 CXK1073 - Jun 5, 16:40 UTCJun 5, 17:20 UTC40m
2026-06-05 CXK1073 - Jun 5, 15:00 UTCJun 5, 15:35 UTC35m
2026-06-05 CXK1073 - Jun 5, 13:20 UTCJun 5, 13:55 UTC35m
2026-06-03 CXK1073 - Jun 3, 23:20 UTCJun 4, 00:30 UTC1h 10m
2026-06-03 CXK1073 - Jun 3, 19:50 UTCJun 3, 21:05 UTC1h 15m
2026-05-31 CXK1073 - May 31, 16:45 UTCMay 31, 18:25 UTC1h 40m
2026-05-29 CXK1073 - May 29, 22:30 UTCMay 29, 23:10 UTC40m
2026-05-29 CXK1073 - May 29, 21:15 UTCMay 29, 21:30 UTC15m
2026-05-29 CXK1073 - May 29, 19:25 UTCMay 29, 19:40 UTC15m
2026-05-29 CXK1073 - May 29, 17:25 UTCMay 29, 18:10 UTC45m

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 N833AT page for operator, model, and routing details .

Mode-S AB6391 frequently asked

What is Mode-S code AB6391?
AB6391 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N833AT.
Where is Mode-S AB6391 registered?
Mode-S code AB6391 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 AB6391 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB6391, octal 52661621, decimal 11,232,145.
What flights does AB6391 operate?
Mode-S AB6391 has broadcast 1 distinct callsign, including CXK1073.