Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9WCH callsign genealogy
Currently held by PRIEN, RICHARD 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 KC9WCH's current licensee, walking backwards.
- PRIEN, RICHARD JILgranted 2011-03-25cancelled 2012-05-29
Successor callsigns
Callsigns held now by people who previously held KC9WCH.
- PRIEN, RICHARD JILgranted 2021-01-05