sensors Mode-S transponder

AA3B04

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N75860 · CESSNA 172 Skyhawk · operated by EASTERN CINCINNATI AVIATION INC

Hex
AA3B04
Octal
52435404
Decimal
11,156,228
Country
US
Tail
N75860
Type
C172
No current signal · last broadcast 10h ago
Flights observed
11
Distinct callsigns
1
Country
US
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S AA3B04.

Country allocation

The ICAO 24-bit address AA3B04 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
N75860 - 11 2026-04-18

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-18 N75860 - Apr 18, 13:10 UTCApr 18, 13:20 UTC10m
2026-04-18 N75860 - Apr 18, 01:25 UTCApr 18, 02:20 UTC55m
2026-04-18 N75860 - Apr 18, 01:10 UTCApr 18, 01:20 UTC10m
2026-04-17 N75860 - Apr 17, 20:35 UTCApr 17, 21:00 UTC25m
2026-04-17 N75860 - Apr 17, 19:25 UTCApr 17, 19:45 UTC20m
2026-04-17 N75860 - Apr 17, 18:35 UTCApr 17, 19:20 UTC45m
2026-04-17 N75860 - Apr 17, 15:20 UTCApr 17, 15:40 UTC20m
2026-04-17 N75860 - Apr 17, 14:30 UTCApr 17, 15:15 UTC45m
2026-04-17 N75860 - Apr 17, 12:20 UTCApr 17, 13:15 UTC55m
2026-04-15 N75860 - Apr 15, 17:05 UTCApr 15, 17:15 UTC10m
2026-04-15 N75860 - Apr 15, 14:20 UTCApr 15, 14:50 UTC29m

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 N75860 page for operator, model, and routing details .

Mode-S AA3B04 frequently asked

What is Mode-S code AA3B04?
AA3B04 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N75860.
Where is Mode-S AA3B04 registered?
Mode-S code AA3B04 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 AA3B04 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA3B04, octal 52435404, decimal 11,156,228.
What flights does AA3B04 operate?
Mode-S AA3B04 has broadcast 1 distinct callsign, including N75860.