Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS3O callsign genealogy
Currently held by Schaffer, William E
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 WS3O's current licensee, walking backwards.
- Schaffer, William EPAgranted 2001-06-28cancelled 2002-10-29
Successor callsigns
Callsigns held now by people who previously held WS3O.
No current licensee on record previously held this callsign.