Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AAC3B8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N793FS · BEECHCRAFT Super King Air 350 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AAC3B8
Octal
52541670
Decimal
11,191,224
Country
US
Tail
N793FS
Type
B350
No current signal · last broadcast 1d ago
Flights observed
3
Distinct callsigns
3
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AAC3B8.

Country allocation

The ICAO 24-bit address AAC3B8 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 3 distinct

Callsign Airline Flights Last seen
NFX602 - 1 2026-04-13
NFX601 - 1 2026-04-13
NFX600 - 1 2026-04-13

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-13 NFX602 - Apr 13, 23:00 UTCApr 13, 23:40 UTC40m
2026-04-13 NFX601 BUR → SJC Apr 13, 16:35 UTCApr 13, 17:35 UTC1h 0m
2026-04-13 NFX600 - Apr 13, 14:10 UTCApr 13, 15:15 UTC1h 5m

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 N793FS page for operator, model, and routing details .

Mode-S AAC3B8 frequently asked

What is Mode-S code AAC3B8?
AAC3B8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N793FS.
Where is Mode-S AAC3B8 registered?
Mode-S code AAC3B8 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 AAC3B8 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAC3B8, octal 52541670, decimal 11,191,224.
What flights does AAC3B8 operate?
Mode-S AAC3B8 has broadcast 3 distinct callsigns, including NFX602, NFX601, NFX600.