sensors Mode-S transponder

ADFE55

ICAO 24-bit transponder address

Currently assigned to 94-00326 · Beech C-12V Huron

Hex
ADFE55
Octal
53377125
Decimal
11,402,837
Tail
94-00326
Type
BE20
No current signal · last broadcast 1d ago
Flights observed
8
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ADFE55.

Callsign history 1 distinct

Callsign Airline Flights Last seen
PAT326 - 8 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 PAT326 - Apr 13, 22:05 UTCApr 13, 23:45 UTC1h 40m
2026-04-13 PAT326 - Apr 13, 19:50 UTCApr 13, 21:15 UTC1h 25m
2026-04-13 PAT326 - Apr 13, 18:15 UTCApr 13, 20:05 UTC1h 50m
2026-04-13 PAT326 - Apr 13, 15:25 UTCApr 13, 15:55 UTC30m
2026-04-13 PAT326 - Apr 13, 12:20 UTCApr 13, 14:30 UTC2h 10m
2026-04-13 PAT326 - Apr 13, 12:00 UTCApr 13, 12:15 UTC15m
2026-04-12 PAT326 - Apr 12, 19:55 UTCApr 12, 20:15 UTC20m
2026-04-12 PAT326 - Apr 12, 17:15 UTCApr 12, 18:45 UTC1h 30m

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 94-00326 page for operator, model, and routing details .

Mode-S ADFE55 frequently asked

What is Mode-S code ADFE55?
ADFE55 is an ICAO 24-bit transponder address. Assigned to 94-00326.
Is ADFE55 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 ADFE55, octal 53377125, decimal 11,402,837.
What flights does ADFE55 operate?
Mode-S ADFE55 has broadcast 1 distinct callsign, including PAT326.