Apparatus

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sensors Mode-S transponder

A9D75F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N733NC · CESSNA 172 Skyhawk · operated by RRGSOFTWARE LLC

Hex
A9D75F
Octal
52353537
Decimal
11,130,719
Country
US
Tail
N733NC
Type
C172
No current signal · last broadcast 9h ago
Flights observed
165
Distinct callsigns
1
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A9D75F.

Country allocation

The ICAO 24-bit address A9D75F 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
N733NC - 165 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N733NC - Jul 17, 23:35 UTCJul 18, 00:50 UTC1h 15m
2026-07-17 N733NC MYF → MYF Jul 17, 15:40 UTCJul 17, 16:15 UTC35m
2026-07-16 N733NC - Jul 16, 19:45 UTCJul 16, 20:49 UTC1h 5m
2026-07-16 N733NC - Jul 16, 17:30 UTCJul 16, 18:40 UTC1h 10m
2026-07-15 N733NC MYF → MYF Jul 15, 21:25 UTCJul 15, 22:15 UTC50m
2026-07-15 N733NC MYF → MYF Jul 15, 17:45 UTCJul 15, 18:50 UTC1h 5m
2026-07-15 N733NC MYF → MYF Jul 15, 15:55 UTCJul 15, 16:35 UTC40m
2026-07-14 N733NC - Jul 14, 21:40 UTCJul 14, 22:55 UTC1h 14m
2026-07-14 N733NC MYF → MYF Jul 14, 17:30 UTCJul 14, 18:55 UTC1h 25m
2026-07-13 N733NC MYF → MYF Jul 13, 19:15 UTCJul 13, 20:45 UTC1h 30m
2026-07-13 N733NC - Jul 13, 18:15 UTCJul 13, 18:30 UTC15m
2026-07-10 N733NC MYF → MYF Jul 10, 19:25 UTCJul 10, 19:40 UTC15m
2026-07-07 N733NC - Jul 7, 21:45 UTCJul 7, 21:55 UTC10m
2026-07-07 N733NC - Jul 7, 19:40 UTCJul 7, 20:55 UTC1h 15m
2026-07-07 N733NC - Jul 7, 17:35 UTCJul 7, 18:35 UTC1h 0m
2026-07-06 N733NC - Jul 6, 22:15 UTCJul 6, 22:50 UTC35m
2026-07-06 N733NC MYF → MYF Jul 6, 19:35 UTCJul 6, 20:45 UTC1h 10m
2026-07-06 N733NC - Jul 6, 18:00 UTCJul 6, 18:50 UTC50m
2026-07-03 N733NC - Jul 3, 21:30 UTCJul 3, 22:40 UTC1h 10m
2026-07-03 N733NC - Jul 3, 18:40 UTCJul 3, 19:45 UTC1h 5m
2026-07-03 N733NC - Jul 3, 01:15 UTCJul 3, 02:30 UTC1h 15m
2026-07-02 N733NC MYF → MYF Jul 2, 21:40 UTCJul 2, 22:25 UTC45m
2026-07-02 N733NC MYF → MYF Jul 2, 19:50 UTCJul 2, 20:45 UTC55m
2026-07-02 N733NC MYF → MYF Jul 2, 17:45 UTCJul 2, 18:40 UTC55m
2026-07-02 N733NC - Jul 2, 01:30 UTCJul 2, 02:55 UTC1h 25m
2026-07-01 N733NC MYF → MYF Jul 1, 22:00 UTCJul 1, 22:50 UTC50m
2026-07-01 N733NC - Jul 1, 19:55 UTCJul 1, 20:45 UTC50m
2026-07-01 N733NC MYF → MYF Jul 1, 17:40 UTCJul 1, 18:40 UTC1h 0m
2026-06-30 N733NC - Jun 30, 21:20 UTCJun 30, 22:45 UTC1h 25m
2026-06-29 N733NC - Jun 29, 23:34 UTCJun 30, 00:49 UTC1h 15m
2026-06-29 N733NC MYF → MYF Jun 29, 21:50 UTCJun 29, 22:35 UTC45m
2026-06-29 N733NC - Jun 29, 18:10 UTCJun 29, 18:55 UTC45m
2026-06-28 N733NC MYF → MYF Jun 28, 18:25 UTCJun 28, 19:44 UTC1h 20m
2026-06-27 N733NC - Jun 27, 17:34 UTCJun 27, 18:45 UTC1h 10m
2026-06-26 N733NC - Jun 26, 19:39 UTCJun 26, 20:40 UTC1h 0m
2026-06-26 N733NC MYF → MYF Jun 26, 17:59 UTCJun 26, 18:49 UTC50m
2026-06-26 N733NC - Jun 26, 15:29 UTCJun 26, 16:39 UTC1h 10m
2026-06-26 N733NC MYF → MYF Jun 26, 01:15 UTCJun 26, 02:24 UTC1h 10m
2026-06-25 N733NC MYF → MYF Jun 25, 21:44 UTCJun 25, 22:45 UTC1h 0m
2026-06-25 N733NC - Jun 25, 19:49 UTCJun 25, 20:45 UTC55m
2026-06-25 N733NC MYF → MYF Jun 25, 17:39 UTCJun 25, 18:50 UTC1h 10m
2026-06-25 N733NC SMO → MYF Jun 25, 03:44 UTCJun 25, 05:15 UTC1h 30m
2026-06-25 N733NC - Jun 25, 01:35 UTCJun 25, 02:59 UTC1h 25m
2026-06-22 N733NC - Jun 22, 20:39 UTCJun 22, 20:49 UTC10m
2026-06-19 N733NC - Jun 19, 19:49 UTCJun 19, 20:55 UTC1h 5m
2026-06-19 N733NC - Jun 19, 17:39 UTCJun 19, 18:39 UTC1h 0m
2026-06-19 N733NC MYF → MYF Jun 19, 01:54 UTCJun 19, 03:09 UTC1h 15m
2026-06-18 N733NC - Jun 18, 20:10 UTCJun 18, 21:00 UTC50m
2026-06-17 N733NC - Jun 17, 19:30 UTCJun 17, 20:10 UTC40m
2026-06-17 N733NC - Jun 17, 18:40 UTCJun 17, 19:20 UTC40m

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 N733NC page for operator, model, and routing details .

Mode-S A9D75F frequently asked

What is Mode-S code A9D75F?
A9D75F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N733NC.
Where is Mode-S A9D75F registered?
Mode-S code A9D75F 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 A9D75F broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9D75F, octal 52353537, decimal 11,130,719.
What flights does A9D75F operate?
Mode-S A9D75F has broadcast 1 distinct callsign, including N733NC.