sensors Mode-S transponder

AE63E5

ICAO 24-bit transponder address

Currently assigned to 65-10342 · Northrop T-38A Talon

Hex
AE63E5
Octal
53461745
Decimal
11,428,837
Tail
65-10342
Type
T38
No current signal · last broadcast 4d ago
Flights observed
4
Distinct callsigns
3
Country
-
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S AE63E5.

Callsign history 3 distinct

Callsign Airline Flights Last seen
ROPER13 - 2 2026-05-08
ROPER23 - 1 2026-05-01
ONYX21 - 1 2026-05-08

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-05-08 ONYX21 - May 8, 20:15 UTCMay 8, 20:45 UTC30m
2026-05-08 ROPER13 - May 8, 17:20 UTCMay 8, 18:10 UTC50m
2026-05-01 ROPER23 - May 1, 19:05 UTCMay 1, 20:10 UTC1h 5m
2026-05-01 ROPER13 - May 1, 15:25 UTCMay 1, 16:10 UTC45m

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 65-10342 page for operator, model, and routing details .

Mode-S AE63E5 frequently asked

What is Mode-S code AE63E5?
AE63E5 is an ICAO 24-bit transponder address. Assigned to 65-10342.
Is AE63E5 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE63E5, octal 53461745, decimal 11,428,837.
What flights does AE63E5 operate?
Mode-S AE63E5 has broadcast 3 distinct callsigns, including ROPER13, ROPER23, ONYX21.