Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE690D

ICAO 24-bit transponder address

Currently assigned to 696225 · BELL 206 JetRanger

Hex
AE690D
Octal
53464415
Decimal
11,430,157
Tail
696225
Type
B06
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 AE690D.

Callsign history 1 distinct

Callsign Airline Flights Last seen
TSTR59 - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 TSTR59 - Apr 13, 19:50 UTCApr 13, 20:15 UTC25m
2026-04-13 TSTR59 - Apr 13, 18:15 UTCApr 13, 20:10 UTC1h 55m

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 696225 page for operator, model, and routing details .

Mode-S AE690D frequently asked

What is Mode-S code AE690D?
AE690D is an ICAO 24-bit transponder address. Assigned to 696225.
Is AE690D 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 AE690D, octal 53464415, decimal 11,430,157.
What flights does AE690D operate?
Mode-S AE690D has broadcast 1 distinct callsign, including TSTR59.