Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CM callsign genealogy
Currently held by WESSEL, WALTER A
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 W0CM's current licensee, walking backwards.
- Kotrba, William RMNgranted 2016-11-17cancelled 2017-01-04
Successor callsigns
Callsigns held now by people who previously held W0CM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0CM, oldest first.
- WESSEL, WALTER A KS2007-03-07 → cancelled 2014-12-15
- Kotrba, William R MN2017-01-04 active