Confidence: Medium · Source: FCC ULS · As of 2026-09-11
AF6SD callsign genealogy
Currently held by ALLGYER, WARREN 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 AF6SD's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AF6SD.
- ALLGYER, WARREN LCAgranted 2009-11-03cancelled 2011-03-08