Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC8SO callsign genealogy
Currently held by Ryan, William G
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 AC8SO's current licensee, walking backwards.
- Ryan, William GOHgranted 2012-10-23cancelled 2014-12-15
Successor callsigns
Callsigns held now by people who previously held AC8SO.
No current licensee on record previously held this callsign.