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sensors Mode-S transponder

AA3B4F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N75885 · CESSNA 172 Skyhawk · operated by MDS ENTERPRISES LLC

Hex
AA3B4F
Octal
52435517
Decimal
11,156,303
Country
US
Tail
N75885
Type
C172
No current signal · last broadcast Jul 26, 16:00 UTC
Flights observed
33
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 16:00 UTC

Last known position

Most recent position reported by Mode-S AA3B4F.

Country allocation

The ICAO 24-bit address AA3B4F 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
N75885 - 33 2026-07-26

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-07-26 N75885 - Jul 26, 15:10 UTCJul 26, 16:00 UTC50m
2026-07-24 N75885 - Jul 24, 18:50 UTCJul 24, 19:10 UTC20m
2026-07-24 N75885 - Jul 24, 16:30 UTCJul 24, 17:30 UTC1h 0m
2026-07-24 N75885 - Jul 24, 14:35 UTCJul 24, 14:55 UTC20m
2026-07-23 N75885 - Jul 23, 17:10 UTCJul 23, 17:45 UTC35m
2026-07-23 N75885 - Jul 23, 16:20 UTCJul 23, 16:55 UTC35m
2026-07-23 N75885 - Jul 23, 14:35 UTCJul 23, 14:55 UTC20m
2026-07-21 N75885 - Jul 21, 12:25 UTCJul 21, 13:15 UTC50m
2026-07-20 N75885 - Jul 20, 19:00 UTCJul 20, 19:10 UTC10m
2026-07-20 N75885 - Jul 20, 18:35 UTCJul 20, 18:55 UTC20m
2026-07-20 N75885 - Jul 20, 14:45 UTCJul 20, 15:50 UTC1h 5m
2026-07-20 N75885 - Jul 20, 13:20 UTCJul 20, 13:40 UTC20m
2026-07-19 N75885 - Jul 19, 15:05 UTCJul 19, 16:05 UTC1h 0m
2026-07-16 N75885 - Jul 16, 12:40 UTCJul 16, 13:20 UTC40m
2026-07-15 N75885 - Jul 15, 14:35 UTCJul 15, 15:05 UTC30m
2026-07-14 N75885 - Jul 14, 20:25 UTCJul 14, 21:45 UTC1h 20m
2026-07-14 N75885 - Jul 14, 19:55 UTCJul 14, 20:20 UTC25m
2026-07-14 N75885 - Jul 14, 17:45 UTCJul 14, 18:50 UTC1h 5m
2026-07-14 N75885 - Jul 14, 16:05 UTCJul 14, 16:35 UTC30m
2026-07-14 N75885 - Jul 14, 14:10 UTCJul 14, 14:50 UTC40m
2026-07-14 N75885 - Jul 14, 11:40 UTCJul 14, 12:45 UTC1h 5m
2026-07-13 N75885 - Jul 13, 15:40 UTCJul 13, 16:00 UTC20m
2026-07-13 N75885 - Jul 13, 13:55 UTCJul 13, 14:25 UTC30m
2026-07-12 N75885 - Jul 12, 21:10 UTCJul 12, 21:45 UTC35m
2026-07-12 N75885 - Jul 12, 15:40 UTCJul 12, 15:55 UTC15m
2026-07-12 N75885 - Jul 12, 14:55 UTCJul 12, 15:30 UTC35m
2026-07-12 N75885 - Jul 12, 12:50 UTCJul 12, 13:20 UTC30m
2026-07-11 N75885 - Jul 11, 17:20 UTCJul 11, 17:45 UTC25m
2026-07-08 N75885 - Jul 8, 15:40 UTCJul 8, 16:45 UTC1h 5m
2026-07-06 N75885 - Jul 6, 19:05 UTCJul 6, 19:25 UTC20m
2026-07-04 N75885 - Jul 4, 15:00 UTCJul 4, 15:40 UTC40m
2026-07-04 N75885 - Jul 4, 12:40 UTCJul 4, 13:15 UTC35m
2026-07-03 N75885 - Jul 3, 14:05 UTCJul 3, 14:45 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 N75885 page for operator, model, and routing details .

Mode-S AA3B4F frequently asked

What is Mode-S code AA3B4F?
AA3B4F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N75885.
Where is Mode-S AA3B4F registered?
Mode-S code AA3B4F 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 AA3B4F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA3B4F, octal 52435517, decimal 11,156,303.
What flights does AA3B4F operate?
Mode-S AA3B4F has broadcast 1 distinct callsign, including N75885.