sensors Mode-S transponder

A9FB96

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N742SP · EMBRAER EMB-135 Legacy · operated by OUR PLANE LLC

Hex
A9FB96
Octal
52375626
Decimal
11,139,990
Country
US
Tail
N742SP
Type
E35L
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A9FB96.

Country allocation

The ICAO 24-bit address A9FB96 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
CWG742 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 CWG742 - Apr 13, 16:15 UTCApr 13, 16:50 UTC35m
2026-04-13 CWG742 - Apr 13, 13:50 UTCApr 13, 15:45 UTC1h 55m
2026-04-13 CWG742 - Apr 13, 12:20 UTCApr 13, 12:40 UTC20m
2026-04-13 CWG742 - Apr 13, 11:55 UTCApr 13, 12:40 UTC45m
2026-04-13 CWG742 - Apr 13, 10:55 UTCApr 13, 12:15 UTC1h 20m
2026-04-13 CWG742 - Apr 13, 00:50 UTCApr 13, 04:00 UTC3h 10m

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 N742SP page for operator, model, and routing details .

Mode-S A9FB96 frequently asked

What is Mode-S code A9FB96?
A9FB96 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N742SP.
Where is Mode-S A9FB96 registered?
Mode-S code A9FB96 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 A9FB96 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 A9FB96, octal 52375626, decimal 11,139,990.
What flights does A9FB96 operate?
Mode-S A9FB96 has broadcast 1 distinct callsign, including CWG742.