Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CF callsign genealogy
Currently held by SHERBURNE COUNTY REPEATER GUILD INC
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 W0CF's current licensee, walking backwards.
- KOLLER, DONALD CMOgranted 2008-01-08cancelled 2010-02-26
Successor callsigns
Callsigns held now by people who previously held W0CF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0CF, oldest first.
- SHERBURNE COUNTY REPEATER GUILD INC MN1998-02-06 → cancelled 2010-02-09
- KOLLER, DONALD C MO2020-01-11 active