Apparatus

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sensors Mode-S transponder

AD6FDD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N965MS · CESSNA 172 Skyhawk · operated by MT SAN ANTONIO COLLEGE

Hex
AD6FDD
Octal
53267735
Decimal
11,366,365
Country
US
Tail
N965MS
Type
C172
No current signal · last broadcast 9h ago
Flights observed
198
Distinct callsigns
1
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S AD6FDD.

Country allocation

The ICAO 24-bit address AD6FDD 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
N965MS - 198 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N965MS - Jul 14, 00:45 UTCJul 14, 01:55 UTC1h 10m
2026-07-13 N965MS - Jul 13, 19:05 UTCJul 13, 20:15 UTC1h 10m
2026-07-12 N965MS RAL → POC Jul 12, 20:35 UTCJul 12, 21:00 UTC25m
2026-07-12 N965MS - Jul 12, 18:40 UTCJul 12, 19:01 UTC20m
2026-07-11 N965MS - Jul 11, 20:45 UTCJul 11, 21:40 UTC55m
2026-07-11 N965MS - Jul 11, 18:40 UTCJul 11, 19:20 UTC40m
2026-07-10 N965MS - Jul 10, 23:20 UTCJul 10, 23:40 UTC20m
2026-07-10 N965MS - Jul 10, 20:55 UTCJul 10, 21:50 UTC55m
2026-07-10 N965MS - Jul 10, 18:35 UTCJul 10, 19:35 UTC1h 0m
2026-07-09 N965MS - Jul 9, 23:25 UTCJul 10, 00:15 UTC50m
2026-07-09 N965MS - Jul 9, 17:05 UTCJul 9, 17:20 UTC15m
2026-07-09 N965MS POC → POC Jul 9, 15:20 UTCJul 9, 15:50 UTC30m
2026-07-09 N965MS - Jul 9, 02:35 UTCJul 9, 03:30 UTC55m
2026-07-08 N965MS - Jul 8, 19:00 UTCJul 8, 19:35 UTC35m
2026-07-08 N965MS - Jul 8, 17:10 UTCJul 8, 17:40 UTC30m
2026-07-08 N965MS POC → POC Jul 8, 15:25 UTCJul 8, 15:50 UTC25m
2026-07-08 N965MS POC → POC Jul 8, 01:45 UTCJul 8, 02:10 UTC25m
2026-07-07 N965MS POC → POC Jul 7, 22:50 UTCJul 7, 23:35 UTC45m
2026-07-07 N965MS - Jul 7, 20:50 UTCJul 7, 21:55 UTC1h 5m
2026-07-07 N965MS - Jul 7, 18:50 UTCJul 7, 19:40 UTC50m
2026-07-07 N965MS - Jul 7, 17:00 UTCJul 7, 17:45 UTC45m
2026-07-07 N965MS POC → POC Jul 7, 15:00 UTCJul 7, 15:35 UTC35m
2026-07-07 N965MS POC → POC Jul 7, 04:35 UTCJul 7, 07:45 UTC3h 10m
2026-07-06 N965MS POC → POC Jul 6, 22:40 UTCJul 6, 23:15 UTC35m
2026-07-06 N965MS POC → POC Jul 6, 21:05 UTCJul 6, 21:45 UTC40m
2026-07-06 N965MS - Jul 6, 17:20 UTCJul 6, 19:20 UTC2h 0m
2026-07-05 N965MS POC → POC Jul 5, 21:00 UTCJul 5, 21:40 UTC40m
2026-07-05 N965MS - Jul 5, 19:20 UTCJul 5, 20:05 UTC45m
2026-07-03 N965MS - Jul 3, 21:20 UTCJul 3, 21:40 UTC20m
2026-07-02 N965MS - Jul 2, 21:05 UTCJul 2, 21:50 UTC45m
2026-07-02 N965MS - Jul 2, 19:15 UTCJul 2, 20:00 UTC45m
2026-07-01 N965MS - Jul 1, 22:45 UTCJul 2, 00:00 UTC1h 15m
2026-07-01 N965MS POC → POC Jul 1, 21:10 UTCJul 1, 21:55 UTC45m
2026-07-01 N965MS - Jul 1, 16:55 UTCJul 1, 18:20 UTC1h 25m
2026-07-01 N965MS POC → POC Jul 1, 14:55 UTCJul 1, 15:50 UTC55m
2026-07-01 N965MS - Jul 1, 03:20 UTCJul 1, 03:55 UTC35m
2026-07-01 N965MS POC → RBK Jul 1, 00:25 UTCJul 1, 01:05 UTC40m
2026-06-29 N965MS - Jun 29, 19:39 UTCJun 29, 20:40 UTC1h 0m
2026-06-29 N965MS - Jun 29, 16:59 UTCJun 29, 17:55 UTC55m
2026-06-28 N965MS - Jun 28, 23:20 UTCJun 28, 23:44 UTC25m
2026-06-28 N965MS - Jun 28, 19:14 UTCJun 28, 19:55 UTC40m
2026-06-27 N965MS POC → POC Jun 27, 19:09 UTCJun 27, 19:55 UTC45m
2026-06-26 N965MS - Jun 26, 18:49 UTCJun 26, 19:55 UTC1h 5m
2026-06-25 N965MS - Jun 25, 19:39 UTCJun 25, 21:10 UTC1h 30m
2026-06-25 N965MS POC → POC Jun 25, 04:29 UTCJun 25, 04:45 UTC15m
2026-06-24 N965MS - Jun 24, 20:09 UTCJun 24, 21:40 UTC1h 30m
2026-06-24 N965MS - Jun 24, 17:45 UTCJun 24, 19:04 UTC1h 20m
2026-06-24 N965MS POC → POC Jun 24, 15:24 UTCJun 24, 16:40 UTC1h 15m
2026-06-24 N965MS - Jun 24, 01:04 UTCJun 24, 01:49 UTC45m
2026-06-23 N965MS - Jun 23, 22:55 UTCJun 24, 00:30 UTC1h 35m

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 N965MS page for operator, model, and routing details .

Mode-S AD6FDD frequently asked

What is Mode-S code AD6FDD?
AD6FDD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N965MS.
Where is Mode-S AD6FDD registered?
Mode-S code AD6FDD 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 AD6FDD 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 AD6FDD, octal 53267735, decimal 11,366,365.
What flights does AD6FDD operate?
Mode-S AD6FDD has broadcast 1 distinct callsign, including N965MS.