Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD07A6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N939FS · BEECHCRAFT Super King Air 350 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AD07A6
Octal
53203646
Decimal
11,339,686
Country
US
Tail
N939FS
Type
B350
Broadcasting now · callsign NFX104 · 19,000 ft
Flights observed
4
Distinct callsigns
3
Country
US
Last broadcast
1d ago

Current position

AD07A6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD07A6 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
NFX102 - 2 2026-04-13
NFX103 - 1 2026-04-13
NFX101 - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 NFX103 - Apr 13, 23:05 UTCApr 13, 23:40 UTC35m
2026-04-13 NFX102 - Apr 13, 16:15 UTCApr 13, 16:45 UTC30m
2026-04-13 NFX102 - Apr 13, 15:45 UTCApr 13, 16:15 UTC30m
2026-04-13 NFX101 BUR → SJC Apr 13, 13:45 UTCApr 13, 14:45 UTC1h 0m

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 N939FS page for operator, model, and routing details .

Mode-S AD07A6 frequently asked

What is Mode-S code AD07A6?
AD07A6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N939FS.
Where is Mode-S AD07A6 registered?
Mode-S code AD07A6 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 AD07A6 broadcasting right now?
Yes. Mode-S AD07A6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD07A6, octal 53203646, decimal 11,339,686.
What flights does AD07A6 operate?
Mode-S AD07A6 has broadcast 3 distinct callsigns, including NFX102, NFX103, NFX101.