Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7WKS callsign genealogy
Currently held by Schwartau, William K
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 W7WKS's current licensee, walking backwards.
- SCHWARTAU, WILLIAM KHIgranted 2020-09-16cancelled 2020-10-06
Successor callsigns
Callsigns held now by people who previously held W7WKS.
- Schwartau, William KHIgranted 2022-01-25