Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4PC callsign genealogy
Currently held by CSS AMATEUR RADIO CLUB
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 W4PC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4PC.
- RUHL, RICHARD SFLgranted 2017-08-25cancelled 2019-07-17
All historical holders
Every license row we've seen with the callsign W4PC, oldest first.
- SPENCER, NEIL FL1996-08-28 → cancelled 1998-02-18
- RUHL, RICHARD S FL2010-07-17 → cancelled 2017-08-25
- CSS AMATEUR RADIO CLUB FL2019-09-04 active