Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4CC58D

ICAO 24-bit transponder address

Hex
4CC58D
Octal
23142615
Decimal
5,031,309
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4CC58D.

Callsign history 1 distinct

Callsign Airline Flights Last seen
TFHRN - 4 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 TFHRN - Apr 13, 19:10 UTCApr 13, 19:30 UTC20m
2026-04-13 TFHRN - Apr 13, 18:20 UTCApr 13, 18:30 UTC10m
2026-04-13 TFHRN - Apr 13, 10:10 UTCApr 13, 10:50 UTC40m
2026-04-13 TFHRN - Apr 13, 09:25 UTCApr 13, 09:35 UTC10m

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.

Mode-S 4CC58D frequently asked

What is Mode-S code 4CC58D?
4CC58D is an ICAO 24-bit transponder address.
Is 4CC58D 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 4CC58D, octal 23142615, decimal 5,031,309.
What flights does 4CC58D operate?
Mode-S 4CC58D has broadcast 1 distinct callsign, including TFHRN.