Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI5S callsign genealogy
Currently held by Kesterson, Larry F
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 WI5S's current licensee, walking backwards.
- Young, Arden WPAgranted 2010-02-03cancelled 2013-03-15
Successor callsigns
Callsigns held now by people who previously held WI5S.
- Kesterson, Larry FOKgranted 2021-01-28
All historical holders
Every license row we've seen with the callsign WI5S, oldest first.
- KNIGHT SR, CHARLES P TX1992-01-14 → cancelled 2004-01-15
- Kesterson, Larry F OK2005-02-25 → cancelled 2011-02-23
- Young, Arden W PA2023-03-13 active