Apparatus

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sensors Mode-S transponder

A36853

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N319AU · operated by CHRISTIANSEN AVIATION LLC

Hex
A36853
Octal
50664123
Decimal
10,709,075
Country
US
Tail
N319AU
Type
PA44
No current signal · last broadcast 13h ago
Flights observed
87
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A36853.

Country allocation

The ICAO 24-bit address A36853 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
AUB1319 - 87 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 AUB1319 AUO → AUO Jun 2, 12:00 UTCJun 2, 12:40 UTC40m
2026-06-02 AUB1319 AUO → AUO Jun 2, 01:40 UTCJun 2, 03:10 UTC1h 30m
2026-06-01 AUB1319 - Jun 1, 20:15 UTCJun 1, 20:20 UTC5m
2026-06-01 AUB1319 - Jun 1, 19:15 UTCJun 1, 19:30 UTC15m
2026-06-01 AUB1319 AUO → AUO Jun 1, 15:40 UTCJun 1, 16:40 UTC1h 0m
2026-05-30 AUB1319 - May 30, 20:25 UTCMay 30, 21:00 UTC35m
2026-05-30 AUB1319 - May 30, 17:35 UTCMay 30, 18:15 UTC40m
2026-05-29 AUB1319 AUO → AUO May 29, 15:35 UTCMay 29, 16:55 UTC1h 20m
2026-05-29 AUB1319 AUO → AUO May 29, 13:30 UTCMay 29, 14:05 UTC35m
2026-05-29 AUB1319 - May 29, 00:05 UTCMay 29, 00:20 UTC15m
2026-05-28 AUB1319 AUO → CSG May 28, 21:25 UTCMay 28, 22:55 UTC1h 30m
2026-05-19 AUB1319 AUO → AUO May 19, 19:45 UTCMay 19, 20:45 UTC1h 0m
2026-05-19 AUB1319 AUO → AUO May 19, 11:45 UTCMay 19, 13:10 UTC1h 25m
2026-05-16 AUB1319 AUO → AUO May 16, 15:50 UTCMay 16, 16:31 UTC40m
2026-05-15 AUB1319 AUO → AUO May 15, 18:40 UTCMay 15, 19:50 UTC1h 10m
2026-05-15 AUB1319 AUO → AUO May 15, 14:30 UTCMay 15, 16:40 UTC2h 9m
2026-05-15 AUB1319 AUO → AUO May 15, 12:10 UTCMay 15, 12:15 UTC5m
2026-05-15 AUB1319 - May 15, 11:55 UTCMay 15, 12:00 UTC5m
2026-05-15 AUB1319 AUO → AUO May 15, 11:40 UTCMay 15, 11:45 UTC5m
2026-05-15 AUB1319 AUO → AUO May 15, 02:20 UTCMay 15, 02:30 UTC10m
2026-05-15 AUB1319 AUO → AUO May 15, 02:05 UTCMay 15, 02:10 UTC5m
2026-05-15 AUB1319 AUO → AUO May 15, 01:50 UTCMay 15, 01:55 UTC5m
2026-05-15 AUB1319 AUO → AUO May 15, 01:35 UTCMay 15, 01:40 UTC5m
2026-05-14 AUB1319 AUO → AUO May 14, 21:10 UTCMay 14, 22:25 UTC1h 15m
2026-05-13 AUB1319 - May 13, 03:00 UTCMay 13, 03:25 UTC25m
2026-05-13 AUB1319 - May 13, 01:45 UTCMay 13, 02:00 UTC15m
2026-05-12 AUB1319 - May 12, 02:45 UTCMay 12, 03:55 UTC1h 10m
2026-05-11 AUB1319 - May 11, 17:25 UTCMay 11, 17:40 UTC15m
2026-05-11 AUB1319 - May 11, 16:40 UTCMay 11, 16:55 UTC15m
2026-05-08 AUB1319 AUO → AUO May 8, 17:50 UTCMay 8, 18:45 UTC55m
2026-05-08 AUB1319 AUO → AUO May 8, 14:45 UTCMay 8, 15:40 UTC55m
2026-05-08 AUB1319 - May 8, 02:24 UTCMay 8, 02:55 UTC30m
2026-05-08 AUB1319 - May 8, 01:24 UTCMay 8, 01:49 UTC25m
2026-05-06 AUB1319 AUO → AUO May 6, 19:45 UTCMay 6, 21:00 UTC1h 15m
2026-05-06 AUB1319 - May 6, 02:50 UTCMay 6, 03:10 UTC20m
2026-05-06 AUB1319 - May 6, 01:35 UTCMay 6, 01:55 UTC20m
2026-05-01 AUB1319 AUO → AUO May 1, 17:00 UTCMay 1, 18:05 UTC1h 5m
2026-05-01 AUB1319 AUO → AUO May 1, 13:00 UTCMay 1, 14:50 UTC1h 50m
2026-05-01 AUB1319 - May 1, 03:00 UTCMay 1, 03:30 UTC30m
2026-05-01 AUB1319 - May 1, 01:35 UTCMay 1, 02:05 UTC30m
2026-04-29 AUB1319 - Apr 29, 20:05 UTCApr 29, 20:10 UTC5m
2026-04-29 AUB1319 AUO → AUO Apr 29, 19:15 UTCApr 29, 19:55 UTC40m
2026-04-28 AUB1319 AUO → AUO Apr 28, 14:55 UTCApr 28, 15:00 UTC5m
2026-04-28 AUB1319 AUO → AUO Apr 28, 01:20 UTCApr 28, 02:35 UTC1h 15m
2026-04-24 AUB1319 AUO → AUO Apr 24, 21:55 UTCApr 24, 23:00 UTC1h 5m
2026-04-24 AUB1319 - Apr 24, 18:25 UTCApr 24, 18:55 UTC30m
2026-04-24 AUB1319 - Apr 24, 17:30 UTCApr 24, 17:50 UTC20m
2026-04-24 AUB1319 - Apr 24, 16:40 UTCApr 24, 17:00 UTC20m
2026-04-24 AUB1319 AUO → NEW Apr 24, 12:20 UTCApr 24, 14:25 UTC2h 5m
2026-04-23 AUB1319 AUO → AUO Apr 23, 21:05 UTCApr 23, 22:25 UTC1h 20m

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 N319AU page for operator, model, and routing details .

Mode-S A36853 frequently asked

What is Mode-S code A36853?
A36853 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N319AU.
Where is Mode-S A36853 registered?
Mode-S code A36853 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 A36853 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A36853, octal 50664123, decimal 10,709,075.
What flights does A36853 operate?
Mode-S A36853 has broadcast 1 distinct callsign, including AUB1319.