Apparatus

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sensors Mode-S transponder

A9DA39

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N734DG · CESSNA 172 Skyhawk · operated by BOYNTON BEACH FLYERS LLC

Hex
A9DA39
Octal
52355071
Decimal
11,131,449
Country
US
Tail
N734DG
Type
C172
No current signal · last broadcast 5h ago
Flights observed
80
Distinct callsigns
1
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A9DA39.

Country allocation

The ICAO 24-bit address A9DA39 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
N734DG - 80 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N734DG RAL → RAL May 29, 21:45 UTCMay 29, 22:55 UTC1h 10m
2026-05-29 N734DG RAL → RAL May 29, 20:10 UTCMay 29, 21:00 UTC50m
2026-05-29 N734DG RAL → RAL May 29, 15:50 UTCMay 29, 16:50 UTC1h 0m
2026-05-28 N734DG RAL → RAL May 28, 19:40 UTCMay 28, 20:40 UTC1h 0m
2026-05-27 N734DG RAL → RAL May 27, 21:50 UTCMay 27, 22:45 UTC55m
2026-05-27 N734DG RAL → RAL May 27, 19:40 UTCMay 27, 20:35 UTC55m
2026-05-27 N734DG RAL → RAL May 27, 17:35 UTCMay 27, 18:40 UTC1h 5m
2026-05-26 N734DG RAL → RAL May 26, 18:14 UTCMay 26, 19:05 UTC50m
2026-05-25 N734DG RAL → RAL May 25, 19:44 UTCMay 25, 20:30 UTC45m
2026-05-24 N734DG RAL → RAL May 24, 19:40 UTCMay 24, 20:30 UTC50m
2026-05-22 N734DG RAL → RAL May 22, 19:45 UTCMay 22, 21:30 UTC1h 45m
2026-05-21 N734DG RAL → RAL May 21, 19:45 UTCMay 21, 20:40 UTC55m
2026-05-19 N734DG RAL → RAL May 19, 17:40 UTCMay 19, 18:45 UTC1h 5m
2026-05-19 N734DG RAL → RAL May 19, 15:40 UTCMay 19, 16:05 UTC25m
2026-05-18 N734DG RAL → RAL May 18, 17:50 UTCMay 18, 18:45 UTC54m
2026-05-16 N734DG RAL → RAL May 16, 20:00 UTCMay 16, 20:55 UTC55m
2026-05-15 N734DG RAL → RAL May 15, 19:20 UTCMay 15, 20:00 UTC40m
2026-05-14 N734DG RAL → RAL May 14, 17:25 UTCMay 14, 18:35 UTC1h 10m
2026-05-14 N734DG - May 14, 16:30 UTCMay 14, 16:35 UTC5m
2026-05-14 N734DG RAL → RAL May 14, 15:45 UTCMay 14, 16:20 UTC35m
2026-05-14 N734DG RAL → RAL May 14, 02:15 UTCMay 14, 02:20 UTC5m
2026-05-14 N734DG RAL → RAL May 14, 01:45 UTCMay 14, 02:10 UTC25m
2026-05-14 N734DG RAL → RAL May 14, 01:00 UTCMay 14, 01:30 UTC30m
2026-05-13 N734DG RAL → RAL May 13, 19:30 UTCMay 13, 20:10 UTC40m
2026-05-13 N734DG RAL → RAL May 13, 18:00 UTCMay 13, 19:00 UTC1h 0m
2026-05-12 N734DG RAL → RAL May 12, 19:40 UTCMay 12, 20:35 UTC55m
2026-05-11 N734DG RIR → ONT May 11, 21:30 UTCMay 11, 22:35 UTC1h 4m
2026-05-11 N734DG RAL → RAL May 11, 19:35 UTCMay 11, 20:45 UTC1h 10m
2026-05-11 N734DG RAL → RAL May 11, 17:45 UTCMay 11, 18:40 UTC55m
2026-05-09 N734DG RAL → RAL May 9, 19:35 UTCMay 9, 20:44 UTC1h 10m
2026-05-08 N734DG RAL → RAL May 8, 22:20 UTCMay 8, 22:50 UTC30m
2026-05-08 N734DG RAL → RAL May 8, 20:00 UTCMay 8, 20:45 UTC45m
2026-05-08 N734DG RAL → RAL May 8, 17:40 UTCMay 8, 18:40 UTC1h 0m
2026-05-07 N734DG AVX → RAL May 7, 21:35 UTCMay 7, 22:20 UTC45m
2026-05-07 N734DG RAL → AVX May 7, 19:40 UTCMay 7, 20:25 UTC45m
2026-05-07 N734DG RAL → RAL May 7, 17:50 UTCMay 7, 18:45 UTC55m
2026-05-07 N734DG RAL → RAL May 7, 15:55 UTCMay 7, 16:50 UTC55m
2026-05-06 N734DG RAL → RAL May 6, 23:45 UTCMay 7, 00:40 UTC55m
2026-05-06 N734DG RAL → RAL May 6, 21:35 UTCMay 6, 22:00 UTC25m
2026-05-06 N734DG RAL → RAL May 6, 18:40 UTCMay 6, 20:35 UTC1h 55m
2026-05-05 N734DG RAL → RAL May 5, 19:45 UTCMay 5, 20:35 UTC50m
2026-05-04 N734DG RAL → RAL May 4, 23:40 UTCMay 5, 00:35 UTC55m
2026-05-04 N734DG RAL → RAL May 4, 22:00 UTCMay 4, 23:05 UTC1h 5m
2026-05-04 N734DG RAL → RAL May 4, 19:35 UTCMay 4, 20:40 UTC1h 5m
2026-05-04 N734DG - May 4, 17:35 UTCMay 4, 18:30 UTC55m
2026-05-04 N734DG RAL → AVX May 4, 15:30 UTCMay 4, 16:25 UTC55m
2026-05-01 N734DG - May 1, 23:15 UTCMay 1, 23:30 UTC15m
2026-05-01 N734DG - May 1, 17:20 UTCMay 1, 17:40 UTC20m
2026-04-28 N734DG RAL → RAL Apr 28, 18:35 UTCApr 28, 18:45 UTC10m
2026-04-24 N734DG RAL → RAL Apr 24, 23:05 UTCApr 24, 23:25 UTC20m

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 N734DG page for operator, model, and routing details .

Mode-S A9DA39 frequently asked

What is Mode-S code A9DA39?
A9DA39 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N734DG.
Where is Mode-S A9DA39 registered?
Mode-S code A9DA39 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 A9DA39 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9DA39, octal 52355071, decimal 11,131,449.
What flights does A9DA39 operate?
Mode-S A9DA39 has broadcast 1 distinct callsign, including N734DG.