Apparatus

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sensors Mode-S transponder

AAD336

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N797ND · PIPER PA-44 Seminole · operated by UNIVERSITY OF NORTH DAKOTA, JOHN D ODEGARD SCHOOL OF AEROSPACE SCIENCES

Hex
AAD336
Octal
52551466
Decimal
11,195,190
Country
US
Tail
N797ND
Type
PA44
No current signal · last broadcast 12h ago
Flights observed
89
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S AAD336.

Country allocation

The ICAO 24-bit address AAD336 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
NDU97T - 89 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 NDU97T - Jul 13, 22:05 UTCJul 13, 23:40 UTC1h 35m
2026-07-13 NDU97T - Jul 13, 16:05 UTCJul 13, 16:30 UTC25m
2026-07-13 NDU97T - Jul 13, 12:10 UTCJul 13, 13:25 UTC1h 15m
2026-07-11 NDU97T - Jul 11, 19:05 UTCJul 11, 19:55 UTC50m
2026-07-11 NDU97T - Jul 11, 16:50 UTCJul 11, 17:30 UTC40m
2026-07-11 NDU97T - Jul 11, 14:40 UTCJul 11, 15:15 UTC35m
2026-07-11 NDU97T - Jul 11, 12:35 UTCJul 11, 13:10 UTC35m
2026-07-10 NDU97T - Jul 10, 00:30 UTCJul 10, 01:10 UTC40m
2026-07-09 NDU97T - Jul 9, 23:30 UTCJul 9, 23:50 UTC20m
2026-07-09 NDU97T - Jul 9, 17:30 UTCJul 9, 18:05 UTC35m
2026-07-09 NDU97T - Jul 9, 05:05 UTCJul 9, 05:20 UTC15m
2026-07-09 NDU97T - Jul 9, 03:30 UTCJul 9, 03:55 UTC25m
2026-07-09 NDU97T - Jul 9, 00:45 UTCJul 9, 01:15 UTC30m
2026-07-08 NDU97T - Jul 8, 18:25 UTCJul 8, 18:40 UTC15m
2026-07-08 NDU97T - Jul 8, 13:50 UTCJul 8, 14:15 UTC25m
2026-07-01 NDU97T - Jul 1, 14:15 UTCJul 1, 14:25 UTC10m
2026-06-30 NDU97T - Jun 30, 13:15 UTCJun 30, 13:50 UTC35m
2026-06-26 NDU97T - Jun 26, 22:49 UTCJun 27, 00:14 UTC1h 25m
2026-06-26 NDU97T - Jun 26, 15:34 UTCJun 26, 15:45 UTC10m
2026-06-25 NDU97T - Jun 25, 20:54 UTCJun 25, 21:25 UTC30m
2026-06-25 NDU97T - Jun 25, 19:15 UTCJun 25, 20:05 UTC50m
2026-06-25 NDU97T - Jun 25, 15:44 UTCJun 25, 15:54 UTC10m
2026-06-22 NDU97T - Jun 22, 12:25 UTCJun 22, 13:14 UTC50m
2026-06-20 NDU97T - Jun 20, 18:40 UTCJun 20, 18:49 UTC10m
2026-06-20 NDU97T - Jun 20, 14:50 UTCJun 20, 15:24 UTC35m
2026-06-19 NDU97T - Jun 19, 00:14 UTCJun 19, 01:24 UTC1h 10m
2026-06-18 NDU97T - Jun 18, 14:20 UTCJun 18, 14:30 UTC10m
2026-06-18 NDU97T - Jun 18, 00:30 UTCJun 18, 00:40 UTC10m
2026-06-17 NDU97T - Jun 17, 23:15 UTCJun 18, 00:00 UTC45m
2026-06-17 NDU97T - Jun 17, 01:15 UTCJun 17, 02:20 UTC1h 5m
2026-06-16 NDU97T - Jun 16, 17:59 UTCJun 16, 18:25 UTC25m
2026-06-16 NDU97T - Jun 16, 15:30 UTCJun 16, 15:40 UTC10m
2026-06-15 NDU97T - Jun 15, 13:10 UTCJun 15, 13:34 UTC25m
2026-06-05 NDU97T - Jun 5, 17:10 UTCJun 5, 17:25 UTC15m
2026-06-04 NDU97T - Jun 4, 17:55 UTCJun 4, 18:20 UTC25m
2026-06-04 NDU97T - Jun 4, 16:10 UTCJun 4, 16:50 UTC40m
2026-06-02 NDU97T - Jun 2, 21:50 UTCJun 2, 22:05 UTC15m
2026-06-02 NDU97T - Jun 2, 19:50 UTCJun 2, 21:00 UTC1h 10m
2026-06-02 NDU97T - Jun 2, 16:15 UTCJun 2, 17:15 UTC1h 0m
2026-05-29 NDU97T - May 29, 16:25 UTCMay 29, 17:20 UTC55m
2026-05-29 NDU97T - May 29, 13:50 UTCMay 29, 14:20 UTC30m
2026-05-28 NDU97T - May 28, 22:40 UTCMay 28, 22:50 UTC10m
2026-05-27 NDU97T - May 27, 21:15 UTCMay 27, 21:35 UTC20m
2026-05-27 NDU97T - May 27, 20:10 UTCMay 27, 20:30 UTC20m
2026-05-27 NDU97T - May 27, 13:15 UTCMay 27, 13:50 UTC35m
2026-05-26 NDU97T - May 26, 22:59 UTCMay 26, 23:10 UTC10m
2026-05-26 NDU97T - May 26, 17:44 UTCMay 26, 19:30 UTC1h 45m
2026-05-26 NDU97T - May 26, 15:24 UTCMay 26, 15:45 UTC20m
2026-05-26 NDU97T - May 26, 14:14 UTCMay 26, 14:40 UTC25m
2026-05-25 NDU97T - May 25, 22:10 UTCMay 25, 22:44 UTC35m

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 N797ND page for operator, model, and routing details .

Mode-S AAD336 frequently asked

What is Mode-S code AAD336?
AAD336 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N797ND.
Where is Mode-S AAD336 registered?
Mode-S code AAD336 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 AAD336 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 AAD336, octal 52551466, decimal 11,195,190.
What flights does AAD336 operate?
Mode-S AAD336 has broadcast 1 distinct callsign, including NDU97T.