sensors Mode-S transponder

AD9A41

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N976DG · operated by CF AVIATION TRUST LLC TRUSTEE

Hex
AD9A41
Octal
53315101
Decimal
11,377,217
Country
US
Tail
N976DG
Type
LJ55
No current signal · last broadcast 12h ago
Flights observed
48
Distinct callsigns
0
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S AD9A41.

Country allocation

The ICAO 24-bit address AD9A41 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.

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-07-17 - - Jul 17, 20:35 UTCJul 17, 22:45 UTC2h 10m
2026-07-16 - - Jul 16, 13:40 UTCJul 16, 15:35 UTC1h 55m
2026-07-13 - - Jul 13, 14:40 UTCJul 13, 14:50 UTC10m
2026-07-12 - - Jul 12, 17:35 UTCJul 12, 17:55 UTC20m
2026-07-11 - - Jul 11, 23:40 UTCJul 12, 02:05 UTC2h 25m
2026-07-11 - CUN → CUN Jul 11, 11:20 UTCJul 11, 17:30 UTC6h 10m
2026-07-10 - - Jul 10, 18:50 UTCJul 11, 00:20 UTC5h 30m
2026-07-10 - - Jul 10, 16:50 UTCJul 10, 17:10 UTC20m
2026-07-09 - - Jul 9, 22:05 UTCJul 9, 23:10 UTC1h 5m
2026-07-09 - - Jul 9, 18:50 UTCJul 9, 19:35 UTC45m
2026-07-08 - - Jul 8, 13:45 UTCJul 8, 18:30 UTC4h 45m
2026-07-04 - - Jul 4, 00:25 UTCJul 4, 00:45 UTC20m
2026-07-02 - - Jul 2, 20:40 UTCJul 2, 22:50 UTC2h 10m
2026-07-02 - - Jul 2, 16:55 UTCJul 2, 19:05 UTC2h 10m
2026-07-01 - - Jul 1, 21:25 UTCJul 1, 22:40 UTC1h 15m
2026-07-01 - - Jul 1, 18:50 UTCJul 1, 19:35 UTC45m
2026-06-29 - - Jun 29, 21:14 UTCJun 29, 21:34 UTC20m
2026-06-29 - - Jun 29, 18:39 UTCJun 29, 19:35 UTC55m
2026-06-28 - - Jun 28, 20:54 UTCJun 29, 02:20 UTC5h 25m
2026-06-28 - - Jun 28, 17:19 UTCJun 28, 17:34 UTC15m
2026-06-28 - - Jun 28, 13:45 UTCJun 28, 15:40 UTC1h 55m
2026-06-27 - - Jun 27, 00:50 UTCJun 27, 03:09 UTC2h 20m
2026-06-26 - - Jun 26, 11:40 UTCJun 26, 16:14 UTC4h 35m
2026-06-16 - - Jun 16, 16:15 UTCJun 16, 16:30 UTC15m
2026-06-16 - - Jun 16, 14:39 UTCJun 16, 15:00 UTC20m
2026-06-09 - - Jun 9, 23:55 UTCJun 10, 01:40 UTC1h 45m
2026-06-09 - - Jun 9, 19:10 UTCJun 9, 19:55 UTC45m
2026-06-09 - - Jun 9, 00:20 UTCJun 9, 02:15 UTC1h 55m
2026-06-04 - - Jun 4, 19:00 UTCJun 4, 19:20 UTC20m
2026-06-04 - - Jun 4, 16:05 UTCJun 4, 16:25 UTC20m
2026-05-23 - - May 23, 01:00 UTCMay 23, 01:30 UTC30m
2026-05-22 - - May 22, 02:45 UTCMay 22, 03:15 UTC30m
2026-05-11 - - May 11, 18:20 UTCMay 11, 19:50 UTC1h 30m
2026-05-09 - - May 9, 22:34 UTCMay 9, 23:20 UTC45m
2026-05-08 - - May 8, 17:15 UTCMay 8, 18:10 UTC55m
2026-05-06 - - May 6, 22:15 UTCMay 6, 23:05 UTC50m
2026-05-06 - - May 6, 16:00 UTCMay 6, 16:20 UTC20m
2026-05-06 - - May 6, 14:10 UTCMay 6, 14:30 UTC20m
2026-05-06 - - May 6, 00:01 UTCMay 6, 00:20 UTC20m
2026-05-05 - - May 5, 22:45 UTCMay 5, 23:00 UTC15m
2026-05-05 - - May 5, 20:01 UTCMay 5, 20:40 UTC40m
2026-05-05 - - May 5, 15:55 UTCMay 5, 16:30 UTC35m
2026-05-01 - - May 1, 18:45 UTCMay 1, 19:05 UTC20m
2026-05-01 - - May 1, 16:50 UTCMay 1, 17:10 UTC20m
2026-04-22 - - Apr 22, 04:10 UTCApr 22, 05:01 UTC50m
2026-04-22 - - Apr 22, 00:40 UTCApr 22, 01:35 UTC55m
2026-04-20 - - Apr 20, 21:40 UTCApr 20, 22:10 UTC30m
2026-04-20 - - Apr 20, 13:30 UTCApr 20, 14:00 UTC30m

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 N976DG page for operator, model, and routing details .

Mode-S AD9A41 frequently asked

What is Mode-S code AD9A41?
AD9A41 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N976DG.
Where is Mode-S AD9A41 registered?
Mode-S code AD9A41 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 AD9A41 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 AD9A41, octal 53315101, decimal 11,377,217.