Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5OP callsign genealogy
Currently held by THOMSEN, CHARLES H
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 W5OP's current licensee, walking backwards.
- SCHWARZKOPF, JEAN PTXgranted 2001-10-02cancelled 2002-10-04
Successor callsigns
Callsigns held now by people who previously held W5OP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5OP, oldest first.
- THOMSEN, CHARLES H TX1991-10-01 → cancelled 2000-03-01
- Schwarzkopf, Jean P TX2022-11-18 active