Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4XU callsign genealogy
Currently held by Arbuthnot Iii, Guy L
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by AF4XU's current licensee, walking backwards.
- ARBUTHNOT III, GUY LFLgranted 1996-11-05cancelled 2000-06-09
- KC6ASTno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AF4XU.
- Arbuthnot Iii, Guy LFLgranted 2020-08-20