Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0OPP callsign genealogy
Currently held by Paucek, Petr
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 W0OPP's current licensee, walking backwards.
- Paucek, PeterCOgranted 2022-04-12cancelled 2023-03-07
Successor callsigns
Callsigns held now by people who previously held W0OPP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0OPP, oldest first.
- REZAC, JOSEPH W NE1996-03-14 → cancelled 2008-03-15
- Paucek, Petr CO2023-03-07 active