sensors Mode-S transponder

A3A2ED

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N333WE · operated by SPARROW AERO LLC

Hex
A3A2ED
Octal
50721355
Decimal
10,724,077
Country
US
Tail
N333WE
No current signal · last broadcast Jul 24, 15:15 UTC
Flights observed
2
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 15:15 UTC

Last known position

Most recent position reported by Mode-S A3A2ED.

Country allocation

The ICAO 24-bit address A3A2ED 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
N333WE - 2 2026-07-24

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-07-24 N333WE - Jul 24, 13:35 UTCJul 24, 15:15 UTC1h 40m
2026-07-24 N333WE NHZ → NHZ Jul 24, 12:45 UTCJul 24, 13:00 UTC15m

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 N333WE page for operator, model, and routing details .

Mode-S A3A2ED frequently asked

What is Mode-S code A3A2ED?
A3A2ED is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N333WE.
Where is Mode-S A3A2ED registered?
Mode-S code A3A2ED 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 A3A2ED broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 15:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3A2ED, octal 50721355, decimal 10,724,077.
What flights does A3A2ED operate?
Mode-S A3A2ED has broadcast 1 distinct callsign, including N333WE.