sensors Mode-S transponder

ADFD7B

ICAO 24-bit transponder address

Currently assigned to 91-0511 · SWEARINGEN Metro

Hex
ADFD7B
Octal
53376573
Decimal
11,402,619
Tail
91-0511
Type
SW4
No current signal · last broadcast 1d ago
Flights observed
8
Distinct callsigns
2
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ADFD7B.

Callsign history 2 distinct

Callsign Airline Flights Last seen
PAT718 - 6 2026-04-13
PAT268 - 2 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 PAT718 - Apr 13, 19:50 UTCApr 13, 20:15 UTC25m
2026-04-13 PAT718 - Apr 13, 18:45 UTCApr 13, 20:10 UTC1h 25m
2026-04-13 PAT718 - Apr 13, 16:15 UTCApr 13, 17:20 UTC1h 5m
2026-04-13 PAT718 - Apr 13, 15:50 UTCApr 13, 17:20 UTC1h 30m
2026-04-13 PAT718 - Apr 13, 15:15 UTCApr 13, 16:15 UTC1h 0m
2026-04-13 PAT718 - Apr 13, 12:30 UTCApr 13, 13:40 UTC1h 10m
2026-04-12 PAT268 - Apr 12, 19:15 UTCApr 12, 20:15 UTC1h 0m
2026-04-12 PAT268 - Apr 12, 17:35 UTCApr 12, 18:35 UTC1h 0m

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 91-0511 page for operator, model, and routing details .

Mode-S ADFD7B frequently asked

What is Mode-S code ADFD7B?
ADFD7B is an ICAO 24-bit transponder address. Assigned to 91-0511.
Is ADFD7B 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 ADFD7B, octal 53376573, decimal 11,402,619.
What flights does ADFD7B operate?
Mode-S ADFD7B has broadcast 2 distinct callsigns, including PAT718, PAT268.