sensors Mode-S transponder

ADFFA5

ICAO 24-bit transponder address

Currently assigned to 70-1569 · Northrop T-38C Talon

Hex
ADFFA5
Octal
53377645
Decimal
11,403,173
Tail
70-1569
Type
T38
No current signal · last broadcast 2d ago
Flights observed
3
Distinct callsigns
3
Country
-
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S ADFFA5.

Callsign history 3 distinct

Callsign Airline Flights Last seen
SHOOT33 - 1 2026-04-12
GUNN42 - 1 2026-04-13
COLT22 - 1 2026-04-13

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-13 GUNN42 - Apr 13, 18:10 UTCApr 13, 18:45 UTC35m
2026-04-13 COLT22 - Apr 13, 14:50 UTCApr 13, 15:30 UTC40m
2026-04-12 SHOOT33 - Apr 12, 18:10 UTCApr 12, 19:00 UTC50m

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 70-1569 page for operator, model, and routing details .

Mode-S ADFFA5 frequently asked

What is Mode-S code ADFFA5?
ADFFA5 is an ICAO 24-bit transponder address. Assigned to 70-1569.
Is ADFFA5 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADFFA5, octal 53377645, decimal 11,403,173.
What flights does ADFFA5 operate?
Mode-S ADFFA5 has broadcast 3 distinct callsigns, including SHOOT33, GUNN42, COLT22.