Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD6CPT callsign genealogy
Currently held by Kopitzke, Roger K
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 WD6CPT's current licensee, walking backwards.
- Kopitzke, Roger KCAgranted 2015-03-06cancelled 2016-03-29
Successor callsigns
Callsigns held now by people who previously held WD6CPT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD6CPT, oldest first.
- KOPITZKE, ROGER K CA1988-05-10 → cancelled 2000-05-11
- Kopitzke, Roger K CA2016-03-29 active