sensors Mode-S transponder

ADFE51

ICAO 24-bit transponder address

Currently assigned to 94-00322 · Beech C-12V Huron

Hex
ADFE51
Octal
53377121
Decimal
11,402,833
Tail
94-00322
Type
BE20
No current signal · last broadcast 1d ago
Flights observed
14
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ADFE51.

Callsign history 1 distinct

Callsign Airline Flights Last seen
PAT322 - 14 2026-05-28

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-05-28 PAT322 - May 28, 12:55 UTCMay 28, 15:20 UTC2h 25m
2026-05-08 PAT322 - May 8, 23:55 UTCMay 9, 02:30 UTC2h 35m
2026-05-08 PAT322 - May 8, 20:45 UTCMay 8, 22:00 UTC1h 15m
2026-05-08 PAT322 - May 8, 19:35 UTCMay 8, 20:00 UTC25m
2026-05-08 PAT322 - May 8, 18:20 UTCMay 8, 19:00 UTC40m
2026-05-08 PAT322 - May 8, 14:35 UTCMay 8, 16:55 UTC2h 20m
2026-05-06 PAT322 - May 6, 23:30 UTCMay 7, 00:45 UTC1h 15m
2026-05-06 PAT322 - May 6, 21:05 UTCMay 6, 23:00 UTC1h 55m
2026-05-06 PAT322 - May 6, 16:20 UTCMay 6, 19:25 UTC3h 5m
2026-04-30 PAT322 - Apr 30, 19:45 UTCApr 30, 23:00 UTC3h 15m
2026-04-30 PAT322 - Apr 30, 17:20 UTCApr 30, 18:40 UTC1h 20m
2026-04-30 PAT322 - Apr 30, 16:25 UTCApr 30, 17:10 UTC45m
2026-04-27 PAT322 - Apr 27, 14:55 UTCApr 27, 16:45 UTC1h 50m
2026-04-22 PAT322 - Apr 22, 18:05 UTCApr 22, 19:30 UTC1h 25m

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 94-00322 page for operator, model, and routing details .

Mode-S ADFE51 frequently asked

What is Mode-S code ADFE51?
ADFE51 is an ICAO 24-bit transponder address. Assigned to 94-00322.
Is ADFE51 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 ADFE51, octal 53377121, decimal 11,402,833.
What flights does ADFE51 operate?
Mode-S ADFE51 has broadcast 1 distinct callsign, including PAT322.