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sensors Mode-S transponder

A436FF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3706K · PIPER PA-28-140/150/160/180 · operated by MILOUD CHADD K

Hex
A436FF
Octal
51033377
Decimal
10,761,983
Country
US
Tail
N3706K
Type
P28A
No current signal · last broadcast Jul 25, 16:45 UTC
Flights observed
42
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 16:45 UTC

Last known position

Most recent position reported by Mode-S A436FF.

Country allocation

The ICAO 24-bit address A436FF 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
N3706K - 42 2026-07-25

Recent flights last 42

DateFlightRouteTakeoffLandingDuration
2026-07-25 N3706K - Jul 25, 16:25 UTCJul 25, 16:45 UTC20m
2026-07-25 N3706K - Jul 25, 15:00 UTCJul 25, 15:10 UTC10m
2026-07-23 N3706K - Jul 23, 22:35 UTCJul 23, 22:45 UTC10m
2026-07-23 N3706K - Jul 23, 15:35 UTCJul 23, 17:30 UTC1h 55m
2026-07-23 N3706K - Jul 23, 13:25 UTCJul 23, 14:15 UTC50m
2026-07-22 N3706K - Jul 22, 15:55 UTCJul 22, 17:55 UTC2h 0m
2026-07-15 N3706K - Jul 15, 13:40 UTCJul 15, 14:50 UTC1h 10m
2026-07-15 N3706K - Jul 15, 01:45 UTCJul 15, 03:20 UTC1h 35m
2026-07-14 N3706K - Jul 14, 20:45 UTCJul 14, 21:00 UTC15m
2026-07-13 N3706K - Jul 13, 14:10 UTCJul 13, 14:45 UTC35m
2026-07-12 N3706K - Jul 12, 17:15 UTCJul 12, 17:25 UTC10m
2026-07-12 N3706K - Jul 12, 16:30 UTCJul 12, 16:45 UTC15m
2026-07-10 N3706K - Jul 10, 14:15 UTCJul 10, 14:45 UTC30m
2026-07-09 N3706K - Jul 9, 20:10 UTCJul 9, 20:30 UTC20m
2026-07-09 N3706K - Jul 9, 14:05 UTCJul 9, 14:40 UTC35m
2026-07-09 N3706K - Jul 9, 01:50 UTCJul 9, 03:45 UTC1h 55m
2026-07-08 N3706K - Jul 8, 17:15 UTCJul 8, 17:40 UTC25m
2026-07-07 N3706K - Jul 7, 22:30 UTCJul 7, 23:00 UTC30m
2026-07-03 N3706K - Jul 3, 14:00 UTCJul 3, 14:10 UTC10m
2026-07-03 N3706K - Jul 3, 01:40 UTCJul 3, 03:30 UTC1h 50m
2026-07-02 N3706K - Jul 2, 13:55 UTCJul 2, 14:25 UTC30m
2026-07-01 N3706K - Jul 1, 18:20 UTCJul 1, 19:20 UTC1h 0m
2026-07-01 N3706K - Jul 1, 17:40 UTCJul 1, 18:15 UTC35m
2026-06-30 N3706K - Jun 30, 11:45 UTCJun 30, 12:20 UTC35m
2026-06-24 N3706K - Jun 24, 21:00 UTCJun 24, 21:24 UTC25m
2026-06-23 N3706K - Jun 23, 22:44 UTCJun 23, 23:10 UTC25m
2026-06-21 N3706K - Jun 21, 16:39 UTCJun 21, 17:05 UTC25m
2026-06-17 N3706K - Jun 17, 13:50 UTCJun 17, 14:55 UTC1h 5m
2026-06-16 N3706K - Jun 16, 13:44 UTCJun 16, 14:35 UTC50m
2026-06-15 N3706K - Jun 15, 20:50 UTCJun 15, 21:04 UTC15m
2026-06-14 N3706K - Jun 14, 00:20 UTCJun 14, 00:35 UTC15m
2026-06-13 N3706K - Jun 13, 20:40 UTCJun 13, 21:15 UTC35m
2026-06-12 N3706K - Jun 12, 21:20 UTCJun 12, 21:50 UTC30m
2026-06-09 N3706K - Jun 9, 12:45 UTCJun 9, 13:50 UTC1h 5m
2026-06-07 N3706K - Jun 7, 15:30 UTCJun 7, 15:55 UTC25m
2026-06-01 N3706K - Jun 1, 22:10 UTCJun 2, 01:10 UTC3h 0m
2026-06-01 N3706K - Jun 1, 20:15 UTCJun 1, 21:30 UTC1h 15m
2026-06-01 N3706K - Jun 1, 17:35 UTCJun 1, 18:20 UTC45m
2026-06-01 N3706K - Jun 1, 16:15 UTCJun 1, 17:00 UTC45m
2026-05-30 N3706K - May 30, 16:30 UTCMay 30, 17:50 UTC1h 20m
2026-05-05 N3706K FTW → FTW May 5, 13:30 UTCMay 5, 14:30 UTC1h 0m
2026-04-24 N3706K - Apr 24, 14:35 UTCApr 24, 14:50 UTC15m

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 N3706K page for operator, model, and routing details .

Mode-S A436FF frequently asked

What is Mode-S code A436FF?
A436FF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3706K.
Where is Mode-S A436FF registered?
Mode-S code A436FF 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 A436FF broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 16:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A436FF, octal 51033377, decimal 10,761,983.
What flights does A436FF operate?
Mode-S A436FF has broadcast 1 distinct callsign, including N3706K.