Apparatus

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sensors Mode-S transponder

ADFF9E

ICAO 24-bit transponder address

Currently assigned to 69-7074 · Northrop T-38C Talon

Hex
ADFF9E
Octal
53377636
Decimal
11,403,166
Tail
69-7074
Type
T38
No current signal · last broadcast 24d ago
Flights observed
4
Distinct callsigns
4
Country
-
Last broadcast
24d ago

Last known position

Most recent position reported by Mode-S ADFF9E.

Callsign history 4 distinct

Callsign Airline Flights Last seen
FADE1 - 1 2026-05-05
COBALT1 - 1 2026-05-04
BEARD1 - 1 2026-05-04
ADLER1 - 1 2026-04-29

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-05-05 FADE1 - May 5, 15:50 UTCMay 5, 16:15 UTC25m
2026-05-04 COBALT1 - May 4, 18:45 UTCMay 4, 19:05 UTC20m
2026-05-04 BEARD1 - May 4, 15:15 UTCMay 4, 15:40 UTC25m
2026-04-29 ADLER1 - Apr 29, 21:40 UTCApr 29, 22:10 UTC30m

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 69-7074 page for operator, model, and routing details .

Mode-S ADFF9E frequently asked

What is Mode-S code ADFF9E?
ADFF9E is an ICAO 24-bit transponder address. Assigned to 69-7074.
Is ADFF9E broadcasting right now?
No active broadcast right now. Last signal was 24d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADFF9E, octal 53377636, decimal 11,403,166.
What flights does ADFF9E operate?
Mode-S ADFF9E has broadcast 4 distinct callsigns, including FADE1, COBALT1, BEARD1, ADLER1.