sensors Mode-S transponder

AAC59D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N79302 · CESSNA 172 Skyhawk · operated by HAWKEYE HELICOPTER LLC

Hex
AAC59D
Octal
52542635
Decimal
11,191,709
Country
US
Tail
N79302
Type
C172
Broadcasting now · callsign N79302 · 2,900 ft
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Current position

AAC59D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AAC59D 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
N79302 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 N79302 - Apr 13, 19:50 UTCApr 13, 20:15 UTC25m
2026-04-13 N79302 - Apr 13, 19:25 UTCApr 13, 20:10 UTC45m
2026-04-13 N79302 - Apr 13, 17:15 UTCApr 13, 18:55 UTC1h 40m
2026-04-13 N79302 - Apr 13, 16:15 UTCApr 13, 16:40 UTC25m
2026-04-13 N79302 - Apr 13, 16:00 UTCApr 13, 16:15 UTC15m
2026-04-12 N79302 - Apr 12, 18:35 UTCApr 12, 19:55 UTC1h 20m

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 N79302 page for operator, model, and routing details .

Mode-S AAC59D frequently asked

What is Mode-S code AAC59D?
AAC59D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N79302.
Where is Mode-S AAC59D registered?
Mode-S code AAC59D 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 AAC59D broadcasting right now?
Yes. Mode-S AAC59D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAC59D, octal 52542635, decimal 11,191,709.
What flights does AAC59D operate?
Mode-S AAC59D has broadcast 1 distinct callsign, including N79302.