Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0WMS callsign genealogy
Currently held by Shenkin, William M
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 W0WMS's current licensee, walking backwards.
- Shenkin, William MCOgranted 2021-01-26cancelled 2021-02-27
Successor callsigns
Callsigns held now by people who previously held W0WMS.
- Schreiner, Walter MKSgranted 2021-03-17
All historical holders
Every license row we've seen with the callsign W0WMS, oldest first.
- Schreiner, Walter M KS2008-03-14 → cancelled 2011-05-17
- Shenkin, William M CO2021-02-27 active