Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0WLS callsign genealogy
Currently held by Casselberry, Jeff
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 W0WLS's current licensee, walking backwards.
- BLOCK, KEVIN RKSgranted 2007-08-29cancelled 2014-12-19
Successor callsigns
Callsigns held now by people who previously held W0WLS.
- Casselberry, JeffMOgranted 2011-03-15cancelled 2023-03-16
All historical holders
Every license row we've seen with the callsign W0WLS, oldest first.
- Casselberry, Jeff MO2005-04-12 → cancelled 2011-03-15
- BLOCK, KEVIN R KS2024-11-22 active