Apparatus

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sensors Mode-S transponder

AE63D9

ICAO 24-bit transponder address

Currently assigned to 67-14831 · Northrop T-38A Talon

Hex
AE63D9
Octal
53461731
Decimal
11,428,825
Tail
67-14831
Type
T38
No current signal · last broadcast 11h ago
Flights observed
4
Distinct callsigns
4
Country
-
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S AE63D9.

Callsign history 4 distinct

Callsign Airline Flights Last seen
RIBEYE2 - 1 2026-06-22
FAST25 - 1 2026-06-25
FAST24 - 1 2026-06-22
FAST15 - 1 2026-06-25

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-06-25 FAST25 - Jun 25, 17:39 UTCJun 25, 18:10 UTC30m
2026-06-25 FAST15 - Jun 25, 14:09 UTCJun 25, 14:44 UTC35m
2026-06-22 FAST24 - Jun 22, 17:04 UTCJun 22, 17:34 UTC30m
2026-06-22 RIBEYE2 - Jun 22, 14:05 UTCJun 22, 14:24 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 67-14831 page for operator, model, and routing details .

Mode-S AE63D9 frequently asked

What is Mode-S code AE63D9?
AE63D9 is an ICAO 24-bit transponder address. Assigned to 67-14831.
Is AE63D9 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE63D9, octal 53461731, decimal 11,428,825.
What flights does AE63D9 operate?
Mode-S AE63D9 has broadcast 4 distinct callsigns, including RIBEYE2, FAST25, FAST24, FAST15.