Mode-S AFC658 · Transponder Hex for 25-21326

Q: What is Mode-S code AFC658?

AFC658 is an ICAO 24-bit transponder address. Assigned to 25-21326 .

Last known position

Most recent position reported by Mode-S AFC658.

Callsign history 2 distinct

Callsign	Airline	Flights	Last seen
G21326	-	2	2026-05-07
R21326	-	1	2026-04-29

Recent flights last 3

Date	Flight	Route	Takeoff	Landing	Duration
2026-05-07	G21326	NEL → ILG	May 7, 17:20 UTC	May 7, 17:55 UTC	35m
2026-05-07	G21326	NEL → NEL	May 7, 15:50 UTC	May 7, 16:20 UTC	30m
2026-04-29	R21326	NEL → NEL	Apr 29, 18:00 UTC	Apr 29, 18:50 UTC	50m

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 25-21326 page for operator, model, and routing details .

Mode-S AFC658 frequently asked

What is Mode-S code AFC658?

AFC658 is an ICAO 24-bit transponder address. Assigned to 25-21326.

Is AFC658 broadcasting right now?

No active broadcast right now. Last signal was 22d ago.

Hex, octal, and decimal Mode-S codes: what's the difference?

The same 24-bit identifier expressed in different bases: hex AFC658, octal 53743130, decimal 11,519,576.

What flights does AFC658 operate?

Mode-S AFC658 has broadcast 2 distinct callsigns, including G21326, R21326.