Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0RPM callsign genealogy
Currently held by PROETZ, WILLIAM F
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 W0RPM's current licensee, walking backwards.
- MONROE, ROGER PNEgranted 2010-02-17cancelled 2018-02-24
Successor callsigns
Callsigns held now by people who previously held W0RPM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0RPM, oldest first.
- PROETZ, WILLIAM F FL2003-03-20 → cancelled 2015-06-16
- MONROE, ROGER P NE2018-02-24 active