Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS0R callsign genealogy
Currently held by Mayer, Adam J
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 WS0R's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WS0R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WS0R, oldest first.
- WILMOTH, MAURICE L KS2009-01-07 → cancelled 2021-02-06
- Mayer, Adam J IA2021-02-27 active