Apparatus

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sensors Mode-S transponder

4CC589

ICAO 24-bit transponder address

Currently assigned to TF-NLE · BEECH 200 Super King Air

Hex
4CC589
Octal
23142611
Decimal
5,031,305
Tail
TF-NLE
Type
BE20
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
4
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4CC589.

Callsign history 4 distinct

Callsign Airline Flights Last seen
FNA78B - 1 2026-04-13
FNA78 - 1 2026-04-13
FNA77B - 1 2026-04-13
FNA77 - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 FNA78B - Apr 13, 16:15 UTCApr 13, 16:35 UTC20m
2026-04-13 FNA77B - Apr 13, 15:10 UTCApr 13, 15:35 UTC25m
2026-04-13 FNA78 - Apr 13, 10:40 UTCApr 13, 11:05 UTC25m
2026-04-13 FNA77 - Apr 13, 09:30 UTCApr 13, 09:55 UTC25m

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 TF-NLE page for operator, model, and routing details .

Mode-S 4CC589 frequently asked

What is Mode-S code 4CC589?
4CC589 is an ICAO 24-bit transponder address. Assigned to TF-NLE.
Is 4CC589 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 4CC589, octal 23142611, decimal 5,031,305.
What flights does 4CC589 operate?
Mode-S 4CC589 has broadcast 4 distinct callsigns, including FNA78B, FNA78, FNA77B, FNA77.