Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0LLS callsign genealogy
Currently held by WILLIAMS, ROY D
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 KC0LLS's current licensee, walking backwards.
- WILLIAMS, ROY DMNgranted 2023-12-23
Successor callsigns
Callsigns held now by people who previously held KC0LLS.
- WILLIAMS, ROY DMNgranted 2023-12-23