Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7WSB callsign genealogy
Currently held by Butler, William S
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 W7WSB's current licensee, walking backwards.
- Butler, William SNVgranted 2012-04-13cancelled 2012-05-15
Successor callsigns
Callsigns held now by people who previously held W7WSB.
No current licensee on record previously held this callsign.