sensors Mode-S transponder

AB9303

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N845GA · operated by GULFSTREAM AEROSPACE LLC

Hex
AB9303
Octal
52711403
Decimal
11,244,291
Country
US
Tail
N845GA
No current signal · last broadcast 3d ago
Flights observed
7
Distinct callsigns
2
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S AB9303.

Country allocation

The ICAO 24-bit address AB9303 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 2 distinct

Callsign Airline Flights Last seen
AAL50 American Airlines 4 2026-05-25
AAL86 American Airlines 1 2026-05-12

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-05-26 - - May 26, 08:50 UTCMay 26, 08:59 UTC10m
2026-05-25 AAL50 DFW → LHR May 25, 04:35 UTCMay 25, 04:50 UTC15m
2026-05-12 AAL86 ORD → LHR May 12, 05:45 UTCMay 12, 05:55 UTC10m
2026-05-08 - - May 8, 04:49 UTCMay 8, 05:05 UTC15m
2026-05-06 AAL50 DFW → LHR May 6, 04:45 UTCMay 6, 05:00 UTC15m
2026-05-02 AAL50 DFW → LHR May 2, 08:25 UTCMay 2, 08:35 UTC10m
2026-04-28 AAL50 DFW → LHR Apr 28, 04:50 UTCApr 28, 05:00 UTC10m

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 N845GA page for operator, model, and routing details .

Mode-S AB9303 frequently asked

What is Mode-S code AB9303?
AB9303 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N845GA.
Where is Mode-S AB9303 registered?
Mode-S code AB9303 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 AB9303 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB9303, octal 52711403, decimal 11,244,291.
What flights does AB9303 operate?
Mode-S AB9303 has broadcast 2 distinct callsigns, including AAL50, AAL86.