Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE0400

ICAO 24-bit transponder address

Currently assigned to 84-00155 · BEECH 200 Super King Air

Hex
AE0400
Octal
53402000
Decimal
11,404,288
Tail
84-00155
Type
BE20
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE0400.

Callsign history 1 distinct

Callsign Airline Flights Last seen
PAT155 - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 PAT155 - Apr 13, 19:50 UTCApr 13, 21:10 UTC1h 20m
2026-04-13 PAT155 - Apr 13, 19:25 UTCApr 13, 19:45 UTC20m

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 84-00155 page for operator, model, and routing details .

Mode-S AE0400 frequently asked

What is Mode-S code AE0400?
AE0400 is an ICAO 24-bit transponder address. Assigned to 84-00155.
Is AE0400 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 AE0400, octal 53402000, decimal 11,404,288.
What flights does AE0400 operate?
Mode-S AE0400 has broadcast 1 distinct callsign, including PAT155.