sensors Mode-S transponder

AF4A7B

ICAO 24-bit transponder address

Currently assigned to 168207 · BEECHCRAFT Super King Air 350

Hex
AF4A7B
Octal
53645173
Decimal
11,487,867
Tail
168207
Type
B350
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 AF4A7B.

Callsign history 1 distinct

Callsign Airline Flights Last seen
VM207 - 8 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 VM207 - Apr 13, 16:15 UTCApr 13, 17:30 UTC1h 15m
2026-04-13 VM207 - Apr 13, 15:50 UTCApr 13, 17:30 UTC1h 40m
2026-04-13 VM207 - Apr 13, 13:50 UTCApr 13, 16:15 UTC2h 25m
2026-04-13 VM207 - Apr 13, 12:20 UTCApr 13, 12:40 UTC20m
2026-04-13 VM207 - Apr 13, 12:00 UTCApr 13, 12:40 UTC40m
2026-04-13 VM207 - Apr 13, 08:20 UTCApr 13, 12:15 UTC3h 55m
2026-04-13 VM207 - Apr 13, 07:55 UTCApr 13, 11:45 UTC3h 50m
2026-04-13 VM207 - Apr 13, 07:25 UTCApr 13, 08:15 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 168207 page for operator, model, and routing details .

Mode-S AF4A7B frequently asked

What is Mode-S code AF4A7B?
AF4A7B is an ICAO 24-bit transponder address. Assigned to 168207.
Is AF4A7B 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 AF4A7B, octal 53645173, decimal 11,487,867.
What flights does AF4A7B operate?
Mode-S AF4A7B has broadcast 1 distinct callsign, including VM207.